/*
 * tkWinWm.c --
 *
 *  This module takes care of the interactions between a Tk-based
 *  application and the window manager.  Among other things, it
 *  implements the "wm" command and passes geometry information
 *  to the window manager.
 *
 * Copyright (c) 1995-1997 Sun Microsystems, Inc.
 * Copyright (c) 1998-2000 by Scriptics Corporation.
 *
 * See the file "license.terms" for information on usage and redistribution
 * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 *
 * RCS: @(#) Id
 */

#include "tkWinInt.h"
#include <shellapi.h>

/*
 * These next two defines are only valid on Win2K/XP+.
 */
#ifndef WS_EX_LAYERED
#define WS_EX_LAYERED  0x00080000
#endif
#ifndef LWA_ALPHA
#define LWA_ALPHA  0x00000002
#endif

/*
 * Event structure for synthetic activation events.  These events are
 * placed on the event queue whenever a toplevel gets a WM_MOUSEACTIVATE
 * message.
 */

typedef struct ActivateEvent {
    Tcl_Event ev;
    TkWindow *winPtr;
} ActivateEvent;

/*
 * A data structure of the following type holds information for
 * each window manager protocol (such as WM_DELETE_WINDOW) for
 * which a handler (i.e. a Tcl command) has been defined for a
 * particular top-level window.
 */

typedef struct ProtocolHandler {
    Atom protocol;    /* Identifies the protocol. */
    struct ProtocolHandler *nextPtr;
        /* Next in list of protocol handlers for
         * the same top-level window, or NULL for
         * end of list. */
    Tcl_Interp *interp;    /* Interpreter in which to invoke command. */
    char command[4];    /* Tcl command to invoke when a client
         * message for this protocol arrives.
         * The actual size of the structure varies
         * to accommodate the needs of the actual
         * command. THIS MUST BE THE LAST FIELD OF
         * THE STRUCTURE. */
} ProtocolHandler;

#define HANDLER_SIZE(cmdLength) \
    ((unsigned) (sizeof(ProtocolHandler) - 3 + cmdLength))

/*
 * Helper type passed via lParam to TkWmStackorderToplevelEnumProc
 */
typedef struct TkWmStackorderToplevelPair {
    Tcl_HashTable *table;
    TkWindow **window_ptr;
} TkWmStackorderToplevelPair;

/*
 * This structure represents the contents of a icon, in terms of its
 * image.  The HICON is an internal Windows format.  Most of these
 * icon-specific-structures originated with the Winico extension.
 * We stripped out unused parts of that code, and integrated the
 * code more naturally with Tcl.
 */
typedef struct {
  UINT      Width, Height, Colors; /*  Width, Height and bpp */
  LPBYTE      lpBits;                /*  ptr to DIB bits */
  DWORD      dwNumBytes;            /*  how many bytes? */
  LPBITMAPINFO  lpbi;                          /*  ptr to header */
  LPBYTE      lpXOR;                 /*  ptr to XOR image bits */
  LPBYTE      lpAND;                 /*  ptr to AND image bits */
  HICON      hIcon;                 /*  DAS ICON */
} ICONIMAGE, *LPICONIMAGE;
/*
 * This structure is how we represent a block of the above
 * items.  We will reallocate these structures according to
 * how many images they need to contain.
 */
typedef struct {
  int    nNumImages;                      /*  How many images? */
  ICONIMAGE  IconImages[1];                   /*  Image entries */
} BlockOfIconImages, *BlockOfIconImagesPtr;
/*
 * These two structures are used to read in icons from an
 * 'icon directory' (i.e. the contents of a .icr file, say).
 * We only use these structures temporarily, since we copy
 * the information we want into a BlockOfIconImages.
 */
typedef struct {
  BYTE  bWidth;               /*  Width of the image */
  BYTE  bHeight;              /*  Height of the image (times 2) */
  BYTE  bColorCount;          /*  Number of colors in image (0 if >=8bpp) */
  BYTE  bReserved;            /*  Reserved */
  WORD  wPlanes;              /*  Color Planes */
  WORD  wBitCount;            /*  Bits per pixel */
  DWORD  dwBytesInRes;         /*  how many bytes in this resource? */
  DWORD  dwImageOffset;        /*  where in the file is this image */
} ICONDIRENTRY, *LPICONDIRENTRY;
typedef struct {
  WORD    idReserved;   /*  Reserved */
  WORD    idType;       /*  resource type (1 for icons) */
  WORD    idCount;      /*  how many images? */
  ICONDIRENTRY  idEntries[1]; /*  the entries for each image */
} ICONDIR, *LPICONDIR;

/*
 * A pointer to one of these strucutures is associated with each
 * toplevel.  This allows us to free up all memory associated with icon
 * resources when a window is deleted or if the window's icon is
 * changed.  They are simply reference counted according to:
 *
 * (i) how many WmInfo structures point to this object
 * (ii) whether the ThreadSpecificData defined in this file contains
 * a pointer to this object.
 *
 * The former count is for windows whose icons are individually
 * set, and the latter is for the global default icon choice.
 *
 * Icons loaded from .icr/.icr use the iconBlock field, icons
 * loaded from .exe/.dll use the hIcon field.
 */
typedef struct WinIconInstance {
    int refCount;     /* Number of instances that share this
          * data structure. */
    BlockOfIconImagesPtr iconBlock;
                                 /* Pointer to icon resource data for
                                  * image. */
} WinIconInstance;

typedef struct WinIconInstance *WinIconPtr;

/*
 * A data structure of the following type holds window-manager-related
 * information for each top-level window in an application.
 */

typedef struct TkWmInfo {
    TkWindow *winPtr;    /* Pointer to main Tk information for
         * this window. */
    HWND wrapper;    /* This is the decorative frame window
         * created by the window manager to wrap
         * a toplevel window.  This window is
         * a direct child of the root window. */
    char *title;    /* Title to display in window caption.  If
         * NULL, use name of widget.  Malloced. */
    char *iconName;    /* Name to display in icon.  Malloced. */
    XWMHints hints;    /* Various pieces of information for
         * window manager. */
    char *leaderName;    /* Path name of leader of window group
         * (corresponds to hints.window_group).
         * Malloc-ed.  Note:  this field doesn't
         * get updated if leader is destroyed. */
    TkWindow *masterPtr;  /* Master window for TRANSIENT_FOR property,
         * or NULL. */
    Tk_Window icon;    /* Window to use as icon for this window,
         * or NULL. */
    Tk_Window iconFor;    /* Window for which this window is icon, or
         * NULL if this isn't an icon for anyone. */

    /*
     * Information used to construct an XSizeHints structure for
     * the window manager:
     */

    int defMinWidth, defMinHeight, defMaxWidth, defMaxHeight;
        /* Default resize limits given by system. */
    int sizeHintsFlags;    /* Flags word for XSizeHints structure.
         * If the PBaseSize flag is set then the
         * window is gridded;  otherwise it isn't
         * gridded. */
    int minWidth, minHeight;  /* Minimum dimensions of window, in
         * pixels or grid units. */
    int maxWidth, maxHeight;  /* Maximum dimensions of window, in
         * pixels or grid units. 0 to default. */
    Tk_Window gridWin;    /* Identifies the window that controls
         * gridding for this top-level, or NULL if
         * the top-level isn't currently gridded. */
    int widthInc, heightInc;  /* Increments for size changes (# pixels
         * per step). */
    struct {
  int x;  /* numerator */
  int y;  /* denominator */
    } minAspect, maxAspect;  /* Min/max aspect ratios for window. */
    int reqGridWidth, reqGridHeight;
        /* The dimensions of the window (in
         * grid units) requested through
         * the geometry manager. */
    int gravity;    /* Desired window gravity. */

    /*
     * Information used to manage the size and location of a window.
     */

    int width, height;    /* Desired dimensions of window, specified
         * in pixels or grid units.  These values are
         * set by the "wm geometry" command and by
         * ConfigureNotify events (for when wm
         * resizes window).  -1 means user hasn't
         * requested dimensions. */
    int x, y;      /* Desired X and Y coordinates for window.
         * These values are set by "wm geometry",
         * plus by ConfigureNotify events (when wm
         * moves window).  These numbers are
         * different than the numbers stored in
         * winPtr->changes because (a) they could be
         * measured from the right or bottom edge
         * of the screen (see WM_NEGATIVE_X and
         * WM_NEGATIVE_Y flags) and (b) if the window
         * has been reparented then they refer to the
         * parent rather than the window itself. */
    int borderWidth, borderHeight;
        /* Width and height of window dressing, in
         * pixels for the current style/exStyle.  This
         * includes the border on both sides of the
         * window. */
    int configWidth, configHeight;
        /* Dimensions passed to last request that we
         * issued to change geometry of window.  Used
         * to eliminate redundant resize operations. */
    HMENU hMenu;    /* the hMenu associated with this menu */
    DWORD style, exStyle;  /* Style flags for the wrapper window. */
    LONG styleConfig;    /* Extra user requested style bits */
    LONG exStyleConfig;    /* Extra user requested extended style bits */
    double alpha;    /* Alpha transparency level
         * 0.0 (fully transparent) .. 1.0 (opaque) */

    /*
     * List of children of the toplevel which have private colormaps.
     */

    TkWindow **cmapList;  /* Array of window with private colormaps. */
    int cmapCount;    /* Number of windows in array. */

    /*
     * Miscellaneous information.
     */

    ProtocolHandler *protPtr;  /* First in list of protocol handlers for
         * this window (NULL means none). */
    int cmdArgc;    /* Number of elements in cmdArgv below. */
    CONST char **cmdArgv;  /* Array of strings to store in the
         * WM_COMMAND property.  NULL means nothing
         * available. */
    char *clientMachine;  /* String to store in WM_CLIENT_MACHINE
         * property, or NULL. */
    int flags;      /* Miscellaneous flags, defined below. */
    int numTransients;    /* number of transients on this window */
    WinIconPtr iconPtr;         /* pointer to titlebar icon structure for
                                 * this window, or NULL. */
    struct TkWmInfo *nextPtr;  /* Next in list of all top-level windows. */
} WmInfo;

/*
 * Flag values for WmInfo structures:
 *
 * WM_NEVER_MAPPED -    non-zero means window has never been
 *        mapped;  need to update all info when
 *        window is first mapped.
 * WM_UPDATE_PENDING -    non-zero means a call to UpdateGeometryInfo
 *        has already been scheduled for this
 *        window;  no need to schedule another one.
 * WM_NEGATIVE_X -    non-zero means x-coordinate is measured in
 *        pixels from right edge of screen, rather
 *        than from left edge.
 * WM_NEGATIVE_Y -    non-zero means y-coordinate is measured in
 *        pixels up from bottom of screen, rather than
 *        down from top.
 * WM_UPDATE_SIZE_HINTS -  non-zero means that new size hints need to be
 *        propagated to window manager. Not used on Win.
 * WM_SYNC_PENDING -    set to non-zero while waiting for the window
 *        manager to respond to some state change.
 * WM_MOVE_PENDING -    non-zero means the application has requested
 *        a new position for the window, but it hasn't
 *        been reflected through the window manager
 *        yet.
 * WM_COLORMAPS_EXPLICIT -  non-zero means the colormap windows were
 *        set explicitly via "wm colormapwindows".
 * WM_ADDED_TOPLEVEL_COLORMAP - non-zero means that when "wm colormapwindows"
 *        was called the top-level itself wasn't
 *        specified, so we added it implicitly at
 *        the end of the list.
 * WM_WIDTH_NOT_RESIZABLE -  non-zero means that we're not supposed to
 *        allow the user to change the width of the
 *        window (controlled by "wm resizable"
 *        command).
 * WM_HEIGHT_NOT_RESIZABLE -  non-zero means that we're not supposed to
 *        allow the user to change the height of the
 *        window (controlled by "wm resizable"
 *        command).
 * WM_WITHDRAWN -    non-zero means that this window has explicitly
 *        been withdrawn. If it's a transient, it should
 *        not mirror state changes in the master.
 */

#define WM_NEVER_MAPPED      (1<<0)
#define WM_UPDATE_PENDING    (1<<1)
#define WM_NEGATIVE_X      (1<<2)
#define WM_NEGATIVE_Y      (1<<3)
#define WM_UPDATE_SIZE_HINTS    (1<<4)
#define WM_SYNC_PENDING      (1<<5)
#define WM_CREATE_PENDING    (1<<6)
#define WM_MOVE_PENDING      (1<<7)
#define WM_COLORMAPS_EXPLICIT    (1<<8)
#define WM_ADDED_TOPLEVEL_COLORMAP  (1<<9)
#define WM_WIDTH_NOT_RESIZABLE    (1<<10)
#define WM_HEIGHT_NOT_RESIZABLE    (1<<11)
#define WM_WITHDRAWN      (1<<12)

/*
 * Window styles for various types of toplevel windows.
 */

#define WM_OVERRIDE_STYLE (WS_CLIPCHILDREN|WS_CLIPSIBLINGS|CS_DBLCLKS)
#define EX_OVERRIDE_STYLE (WS_EX_TOOLWINDOW)

#define WM_TOPLEVEL_STYLE (WS_OVERLAPPEDWINDOW|WS_CLIPCHILDREN|CS_DBLCLKS)
#define EX_TOPLEVEL_STYLE (0)

#define WM_TRANSIENT_STYLE \
    (WS_POPUP|WS_CAPTION|WS_SYSMENU|WS_CLIPSIBLINGS|CS_DBLCLKS)
#define EX_TRANSIENT_STYLE (WS_EX_DLGMODALFRAME)

/*
 * The following structure is the official type record for geometry
 * management of top-level windows.
 */

static void    TopLevelReqProc(ClientData dummy, Tk_Window tkwin);

static Tk_GeomMgr wmMgrType = {
    "wm",        /* name */
    TopLevelReqProc,      /* requestProc */
    (Tk_GeomLostSlaveProc *) NULL,  /* lostSlaveProc */
};

typedef struct ThreadSpecificData {
    HPALETTE systemPalette;      /* System palette; refers to the
          * currently installed foreground logical
          * palette. */
    TkWindow *createWindow;      /* Window that is being constructed.  This
          * value is set immediately before a
          * call to CreateWindowEx, and is used
          * by SetLimits.  This is a gross hack
          * needed to work around Windows brain
          * damage where it sends the
          * WM_GETMINMAXINFO message before the
          * WM_CREATE window. */
    int initialized;             /* Flag indicating whether thread-
          * specific elements of module have
          * been initialized. */
    int firstWindow;             /* Flag, cleared when the first window
          * is mapped in a non-iconic state. */
    WinIconPtr iconPtr;          /* IconPtr being used as default for all
                                  * toplevels, or NULL. */
} ThreadSpecificData;
static Tcl_ThreadDataKey dataKey;

/*
 * The following variables cannot be placed in thread local storage
 * because they must be shared across threads.
 */

static int initialized;        /* Flag indicating whether module has
        * been initialized. */

/* 
 * A pointer to a shell proc which allows us to extract icons from
 * any file.  We just initialize this when we start up (if we can)
 * and then it never changes
 */
DWORD* (WINAPI *shgetfileinfoProc) (LPCTSTR pszPath, DWORD dwFileAttributes,
    SHFILEINFO* psfi, UINT cbFileInfo, UINT uFlags) = NULL;

/*
 * A pointer to SetLayeredWindowAttributes (user32.dll) which we
 * retrieve dynamically because it is only valid on Win2K+.
 */
BOOL (WINAPI *setLayeredWindowAttributesProc) (HWND hwnd, COLORREF crKey,
  BYTE bAlpha, DWORD dwFlags) = NULL;

TCL_DECLARE_MUTEX(winWmMutex)

/*
 * Forward declarations for procedures defined in this file:
 */

static int    ActivateWindow _ANSI_ARGS_((Tcl_Event *evPtr,
          int flags));
static void    ConfigureTopLevel _ANSI_ARGS_((WINDOWPOS *pos));
static void    GenerateConfigureNotify _ANSI_ARGS_((
          TkWindow *winPtr));
static void    GetMaxSize _ANSI_ARGS_((WmInfo *wmPtr,
          int *maxWidthPtr, int *maxHeightPtr));
static void    GetMinSize _ANSI_ARGS_((WmInfo *wmPtr,
          int *minWidthPtr, int *minHeightPtr));
static TkWindow *  GetTopLevel _ANSI_ARGS_((HWND hwnd));
static void    InitWm _ANSI_ARGS_((void));
static int    InstallColormaps _ANSI_ARGS_((HWND hwnd, int message,
          int isForemost));
static void    InvalidateSubTree _ANSI_ARGS_((TkWindow *winPtr,
          Colormap colormap));
static void    InvalidateSubTreeDepth _ANSI_ARGS_((TkWindow *winPtr));
static int    ParseGeometry _ANSI_ARGS_((Tcl_Interp *interp,
          char *string, TkWindow *winPtr));
static void    RefreshColormap _ANSI_ARGS_((Colormap colormap,
                      TkDisplay *dispPtr));
static void    SetLimits _ANSI_ARGS_((HWND hwnd, MINMAXINFO *info));
static void    TkWmStackorderToplevelWrapperMap _ANSI_ARGS_((
          TkWindow *winPtr,
          Display *display,
          Tcl_HashTable *table));
static LRESULT CALLBACK  TopLevelProc _ANSI_ARGS_((HWND hwnd, UINT message,
          WPARAM wParam, LPARAM lParam));
static void    TopLevelEventProc _ANSI_ARGS_((ClientData clientData,
          XEvent *eventPtr));
static void    TopLevelReqProc _ANSI_ARGS_((ClientData dummy,
          Tk_Window tkwin));
static void    UpdateGeometryInfo _ANSI_ARGS_((
          ClientData clientData));
static void    UpdateWrapper _ANSI_ARGS_((TkWindow *winPtr));
static LRESULT CALLBACK  WmProc _ANSI_ARGS_((HWND hwnd, UINT message,
          WPARAM wParam, LPARAM lParam));
static void    WmWaitVisibilityOrMapProc _ANSI_ARGS_((
          ClientData clientData, XEvent *eventPtr));
static BlockOfIconImagesPtr   ReadIconOrCursorFromFile _ANSI_ARGS_((
          Tcl_Interp *interp, Tcl_Obj* fileName, BOOL isIcon));
static WinIconPtr       ReadIconFromFile _ANSI_ARGS_((
          Tcl_Interp *interp, Tcl_Obj *fileName));
static WinIconPtr       GetIconFromPixmap _ANSI_ARGS_((Display *dsPtr,
                   Pixmap pixmap));
static int         ReadICOHeader _ANSI_ARGS_((Tcl_Channel channel));
static BOOL     AdjustIconImagePointers _ANSI_ARGS_((LPICONIMAGE lpImage));
static HICON     MakeIconOrCursorFromResource 
                            _ANSI_ARGS_((LPICONIMAGE lpIcon, BOOL isIcon));
static HICON     GetIcon _ANSI_ARGS_((WinIconPtr titlebaricon, 
          int icon_size));
static int     WinSetIcon _ANSI_ARGS_((Tcl_Interp *interp,
          WinIconPtr titlebaricon, Tk_Window tkw));
static void     FreeIconBlock _ANSI_ARGS_((BlockOfIconImagesPtr lpIR));
static void       DecrIconRefCount _ANSI_ARGS_((WinIconPtr titlebaricon));

static int     WmAspectCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmAttributesCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmClientCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmColormapwindowsCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmCommandCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmDeiconifyCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmFocusmodelCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmFrameCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmGeometryCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmGridCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmGroupCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmIconbitmapCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmIconifyCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmIconmaskCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmIconnameCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmIconphotoCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmIconpositionCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmIconwindowCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmMaxsizeCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmMinsizeCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmOverrideredirectCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmPositionfromCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmProtocolCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmResizableCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmSizefromCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmStackorderCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmStateCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmTitleCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmTransientCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static int     WmWithdrawCmd _ANSI_ARGS_((Tk_Window tkwin,
          TkWindow *winPtr, Tcl_Interp *interp, int objc,
          Tcl_Obj *CONST objv[]));
static void    WmUpdateGeom _ANSI_ARGS_((WmInfo *wmPtr,
          TkWindow *winPtr));

/* Used in BytesPerLine */
#define WIDTHBYTES(bits)      ((((bits) + 31)>>5)<<2)

/*
 *----------------------------------------------------------------------
 *
 * DIBNumColors --
 *
 *  Calculates the number of entries in the color table, given by
 *  LPSTR lpbi - pointer to the CF_DIB memory block.  Used by
 *  titlebar icon code.
 *
 * Results:
 *
 *      WORD - Number of entries in the color table.
 *
 * Side effects: None.
 *
 *
 *----------------------------------------------------------------------
 */
static WORD 
DIBNumColors( LPSTR lpbi )
{
    WORD wBitCount;
    DWORD dwClrUsed;

    dwClrUsed = ((LPBITMAPINFOHEADER) lpbi)->biClrUsed;

    if (dwClrUsed)
  return (WORD) dwClrUsed;

    wBitCount = ((LPBITMAPINFOHEADER) lpbi)->biBitCount;

    switch (wBitCount)
    {
  case 1: return 2;
  case 4: return 16;
  case 8:  return 256;
  default:return 0;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * PaletteSize --
 *
 *  Calculates the number of bytes in the color table, as given by
 *  LPSTR lpbi - pointer to the CF_DIB memory block.  Used by
 *  titlebar icon code.
 *
 * Results:
 *  number of bytes in the color table
 *
 * Side effects: None.
 *
 *
 *----------------------------------------------------------------------
 */
static WORD 
PaletteSize( LPSTR lpbi )
{
    return ((WORD)( DIBNumColors( lpbi ) * sizeof( RGBQUAD )) );
}

/*
 *----------------------------------------------------------------------
 *
 * FindDIBits --
 *
 *  Locate the image bits in a CF_DIB format DIB, as given by
 *  LPSTR lpbi - pointer to the CF_DIB memory block.  Used by
 *  titlebar icon code.
 *
 * Results:
 *  pointer to the image bits
 *
 * Side effects: None
 *
 *
 *----------------------------------------------------------------------
 */
static LPSTR 
FindDIBBits( LPSTR lpbi )
{
   return ( lpbi + *(LPDWORD)lpbi + PaletteSize( lpbi ) );
}

/*
 *----------------------------------------------------------------------
 *
 * BytesPerLine --
 *
 *  Calculates the number of bytes in one scan line, as given by
 *  LPBITMAPINFOHEADER lpBMIH - pointer to the BITMAPINFOHEADER
 *  that begins the CF_DIB block.  Used by titlebar icon code.
 *
 * Results:
 *  number of bytes in one scan line (DWORD aligned)
 *
 * Side effects: None
 *
 *
 *----------------------------------------------------------------------
 */
static DWORD 
BytesPerLine( LPBITMAPINFOHEADER lpBMIH )
{
    return WIDTHBYTES(lpBMIH->biWidth * lpBMIH->biPlanes * lpBMIH->biBitCount);
}

/*
 *----------------------------------------------------------------------
 *
 * AdjustIconImagePointers --
 *
 *  Adjusts internal pointers in icon resource struct, as given
 *  by LPICONIMAGE lpImage - the resource to handle.  Used by
 *  titlebar icon code.
 *
 * Results:
 *  BOOL - TRUE for success, FALSE for failure
 *
 * Side effects:
 *
 *
 *----------------------------------------------------------------------
 */
static BOOL 
AdjustIconImagePointers( LPICONIMAGE lpImage )
{
    /*  Sanity check */
    if (lpImage==NULL)
  return FALSE;
    /*  BITMAPINFO is at beginning of bits */
    lpImage->lpbi = (LPBITMAPINFO)lpImage->lpBits;
    /*  Width - simple enough */
    lpImage->Width = lpImage->lpbi->bmiHeader.biWidth;
    /* 
     * Icons are stored in funky format where height is doubled 
     * so account for that 
     */
    lpImage->Height = (lpImage->lpbi->bmiHeader.biHeight)/2;
    /*  How many colors? */
    lpImage->Colors = lpImage->lpbi->bmiHeader.biPlanes * 
                            lpImage->lpbi->bmiHeader.biBitCount;
    /*  XOR bits follow the header and color table */
    lpImage->lpXOR = (LPBYTE)FindDIBBits(((LPSTR)lpImage->lpbi));
    /*  AND bits follow the XOR bits */
    lpImage->lpAND = lpImage->lpXOR + (lpImage->Height*
    BytesPerLine((LPBITMAPINFOHEADER)(lpImage->lpbi)));
    return TRUE;
}

/*
 *----------------------------------------------------------------------
 *
 * MakeIconOrCursorFromResource --
 *
 *  Construct an actual HICON structure from the information
 *  in a resource.
 *
 * Results:
 *
 *
 * Side effects:
 *
 *
 *----------------------------------------------------------------------
 */
static HICON 
MakeIconOrCursorFromResource(LPICONIMAGE lpIcon, BOOL isIcon) {
    HICON hIcon ;
    static FARPROC pfnCreateIconFromResourceEx=NULL;
    static int initinfo=0;
    /*  Sanity Check */
    if (lpIcon == NULL)
  return NULL;
    if (lpIcon->lpBits == NULL)
  return NULL;
    if (!initinfo) {
  HMODULE hMod = GetModuleHandleA("USER32.DLL");
  initinfo=1;
  if (hMod){
      pfnCreateIconFromResourceEx = 
        GetProcAddress(hMod, "CreateIconFromResourceEx");
  }
    }
    /*  Let the OS do the real work :) */
    if (pfnCreateIconFromResourceEx!=NULL) {
  hIcon = (HICON) (pfnCreateIconFromResourceEx)
  (lpIcon->lpBits, lpIcon->dwNumBytes, isIcon, 0x00030000,
   (*(LPBITMAPINFOHEADER)(lpIcon->lpBits)).biWidth,
   (*(LPBITMAPINFOHEADER)(lpIcon->lpBits)).biHeight/2, 0);
    } else {
   hIcon = NULL;
    }
    /*  It failed, odds are good we're on NT so try the non-Ex way */
    if (hIcon == NULL)    {
  /*  We would break on NT if we try with a 16bpp image */
  if (lpIcon->lpbi->bmiHeader.biBitCount != 16) {
      hIcon = CreateIconFromResource(lpIcon->lpBits, lpIcon->dwNumBytes, 
             isIcon, 0x00030000);
  }
    }
    return hIcon;
}

/*
 *----------------------------------------------------------------------
 *
 * ReadICOHeader --
 *
 *  Reads the header from an ICO file, as specfied by channel.
 *
 * Results:
 *  UINT - Number of images in file, -1 for failure.
 *  If this succeeds, there is a decent chance this is a
 *  valid icon file.
 *
 * Side effects:
 *
 *
 *----------------------------------------------------------------------
 */
static int 
ReadICOHeader( Tcl_Channel channel )
{
    WORD    Input;
    DWORD  dwBytesRead;

    /*  Read the 'reserved' WORD */
    dwBytesRead = Tcl_Read( channel, (char*)&Input, sizeof( WORD ));
    /*  Did we get a WORD? */
    if (dwBytesRead != sizeof( WORD ))
  return -1;
    /*  Was it 'reserved' ?   (ie 0) */
    if (Input != 0)
  return -1;
    /*  Read the type WORD */
    dwBytesRead = Tcl_Read( channel, (char*)&Input, sizeof( WORD ));
    /*  Did we get a WORD? */
    if (dwBytesRead != sizeof( WORD ))
  return -1;
    /*  Was it type 1? */
    if (Input != 1)
  return -1;
    /*  Get the count of images */
    dwBytesRead = Tcl_Read( channel, (char*)&Input, sizeof( WORD ));
    /*  Did we get a WORD? */
    if (dwBytesRead != sizeof( WORD ))
  return -1;
    /*  Return the count */
    return (int)Input;
}

/*
 *----------------------------------------------------------------------
 *
 * InitWindowClass --
 *
 *  This routine creates the Wm toplevel decorative frame class.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Registers a new window class.
 *
 *----------------------------------------------------------------------
 */
static int 
InitWindowClass(WinIconPtr titlebaricon)
{
    ThreadSpecificData *tsdPtr = (ThreadSpecificData *) 
      Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));

    if (! tsdPtr->initialized) {
  tsdPtr->initialized = 1;
  tsdPtr->firstWindow = 1;
  tsdPtr->iconPtr = NULL;
    }
    if (! initialized) {
  Tcl_MutexLock(&winWmMutex);
  if (! initialized) {
      Tcl_DString classString;
      WNDCLASS class;
      initialized = 1;

      if (shgetfileinfoProc == NULL) {
    HINSTANCE hInstance = LoadLibraryA("shell32");
    if (hInstance != NULL) {
        shgetfileinfoProc = 
        (DWORD* (WINAPI *) (LPCTSTR pszPath, DWORD dwFileAttributes,
    SHFILEINFO* psfi, UINT cbFileInfo, UINT uFlags)) GetProcAddress(hInstance, 
          "SHGetFileInfo");
        FreeLibrary(hInstance);
    }
      }
      if (setLayeredWindowAttributesProc == NULL) {
    HINSTANCE hInstance = LoadLibraryA("user32");
    if (hInstance != NULL) {
        setLayeredWindowAttributesProc =
      (BOOL (WINAPI *) (HWND hwnd, COLORREF crKey,
        BYTE bAlpha, DWORD dwFlags))
      GetProcAddress(hInstance,
        "SetLayeredWindowAttributes");
        FreeLibrary(hInstance);
    }
      }
      /*
       * The only difference between WNDCLASSW and WNDCLASSA are
       * in pointers, so we can use the generic structure WNDCLASS.
       */
      ZeroMemory(&class, sizeof(WNDCLASS));

      /*
       * When threads are enabled, we cannot use CLASSDC because
       * threads will then write into the same device context.
       *
       * This is a hack; we should add a subsystem that manages
       * device context on a per-thread basis.  See also tkWinX.c,
       * which also initializes a WNDCLASS structure.
       */

#ifdef TCL_THREADS
      class.style = CS_HREDRAW | CS_VREDRAW;
#else
      class.style = CS_HREDRAW | CS_VREDRAW | CS_CLASSDC;
#endif
      class.hInstance = Tk_GetHINSTANCE();
      Tcl_WinUtfToTChar(TK_WIN_TOPLEVEL_CLASS_NAME, -1, &classString);
      class.lpszClassName = (LPCTSTR) Tcl_DStringValue(&classString);
      class.lpfnWndProc = WmProc;
      if (titlebaricon == NULL) {
    class.hIcon = LoadIcon(Tk_GetHINSTANCE(), "tk");
      } else {
    class.hIcon = GetIcon(titlebaricon, ICON_BIG);
    if (class.hIcon == NULL) {
        return TCL_ERROR;
    }
    /*
     * Store pointer to default icon so we know when
     * we need to free that information
     */
    tsdPtr->iconPtr = titlebaricon;
      }
      class.hCursor = LoadCursor(NULL, IDC_ARROW);

      if (!(*tkWinProcs->registerClass)(&class)) {
    Tcl_Panic("Unable to register TkTopLevel class");
      }

#ifndef TCL_THREADS
      /*
       * Use of WS_EX_LAYERED disallows CS_CLASSDC, as does
       * TCL_THREADS usage, so only create this if necessary.
       */
      if (setLayeredWindowAttributesProc != NULL) {
    class.style = CS_HREDRAW | CS_VREDRAW;
    Tcl_DStringFree(&classString);
    Tcl_WinUtfToTChar(TK_WIN_TOPLEVEL_NOCDC_CLASS_NAME,
      -1, &classString);
    class.lpszClassName = (LPCTSTR) Tcl_DStringValue(&classString);
    if (!(*tkWinProcs->registerClass)(&class)) {
        Tcl_Panic("Unable to register TkTopLevelNoCDC class");
    }
      }
#endif
      Tcl_DStringFree(&classString);
  }
  Tcl_MutexUnlock(&winWmMutex);
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * InitWm --
 *
 *  This initialises the window manager
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Registers a new window class.
 *
 *----------------------------------------------------------------------
 */
static void
InitWm(void)
{
    /* Ignore return result */
    (void) InitWindowClass(NULL);
}

/*
 *----------------------------------------------------------------------
 *
 * WinSetIcon --
 *
 *  Sets either the default toplevel titlebar icon, or the icon
 *  for a specific toplevel (if tkw is given, then only that
 *  window is used).
 *
 *  The ref-count of the titlebaricon is NOT changed.  If this
 *  function returns successfully, the caller should assume
 *  the icon was used (and therefore the ref-count should
 *  be adjusted to reflect that fact).  If the function returned
 *  an error, the caller should assume the icon was not used
 *  (and may wish to free the memory associated with it).
 *
 * Results:
 *  A standard Tcl return code.
 *
 * Side effects:
 *  One or all windows may have their icon changed.
 *  The Tcl result may be modified.
 *  The window-manager will be initialised if it wasn't already.
 *  The given window will be forced into existence.
 *
 *----------------------------------------------------------------------
 */
static int
WinSetIcon(interp, titlebaricon, tkw)
    Tcl_Interp *interp;
    WinIconPtr titlebaricon;
    Tk_Window tkw;
{
    WmInfo *wmPtr;
    HWND hwnd;
    int application = 0;

    if (tkw == NULL) {
        tkw = Tk_MainWindow(interp);
  application = 1;
    }

    if (!(Tk_IsTopLevel(tkw))) {
  Tcl_AppendResult(interp, "window \"", Tk_PathName(tkw),
    "\" isn't a top-level window", (char *) NULL);
  return TCL_ERROR;
    }
    if (Tk_WindowId(tkw) == None) {
  Tk_MakeWindowExist(tkw);
    }
    /* We must get the window's wrapper, not the window itself */
    wmPtr = ((TkWindow*)tkw)->wmInfoPtr;
    hwnd = wmPtr->wrapper;

    if (application) {
  if (hwnd == NULL) {
      /*
       * I don't actually think this is ever the correct thing, unless
       * perhaps the window doesn't have a wrapper.  But I believe all
       * windows have wrappers.
       */
      hwnd = Tk_GetHWND(Tk_WindowId(tkw));
  }
  /*
   * If we aren't initialised, then just initialise with the user's
   * icon.  Otherwise our icon choice will be ignored moments later
   * when Tk finishes initialising.
   */
  if (!initialized) {
      if (InitWindowClass(titlebaricon) != TCL_OK) {
    Tcl_AppendResult(interp,"Unable to set icon", (char*)NULL);
    return TCL_ERROR;
      }
  } else {
      ThreadSpecificData *tsdPtr;
      if (
#ifdef _WIN64
    !SetClassLongPtr(hwnd, GCLP_HICONSM,
      (LPARAM)GetIcon(titlebaricon, ICON_SMALL))
#else
    !SetClassLong(hwnd, GCL_HICONSM,
      (LPARAM)GetIcon(titlebaricon, ICON_SMALL))
#endif
    ) {
    /*
     * For some reason this triggers, even though it seems
     * to be successful This is probably related to the
     * WNDCLASS vs WNDCLASSEX difference.  Anyway it seems
     * we have to ignore errors returned here.
     */

    /*
     * Tcl_AppendResult(interp,"Unable to set new small icon", (char*)NULL);
     * return TCL_ERROR;
     */
      }
      if (
#ifdef _WIN64
    !SetClassLongPtr(hwnd, GCLP_HICON,
      (LPARAM)GetIcon(titlebaricon, ICON_BIG))
#else
    !SetClassLong(hwnd, GCL_HICON,
      (LPARAM)GetIcon(titlebaricon, ICON_BIG))
#endif
    ) {
    Tcl_AppendResult(interp,"Unable to set new icon", (char*)NULL);
    return TCL_ERROR;
      }
      tsdPtr = (ThreadSpecificData *)
        Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));
      if (tsdPtr->iconPtr != NULL) {
    DecrIconRefCount(tsdPtr->iconPtr);
      }
      tsdPtr->iconPtr = titlebaricon;
  }
    } else {
  if (!initialized) {
      /*
       * Need to initialise the wm otherwise we will fail on
       * code which tries to set a toplevel's icon before that
       * happens.  Ignore return result.
       */
      (void)InitWindowClass(NULL);
  }
  /*
   * The following code is exercised if you do
   *
   *   toplevel .t ; wm titlebaricon .t foo.icr
   *
   * i.e. the wm hasn't had time to properly create
   * the '.t' window before you set the icon.
   */
  if (hwnd == NULL) {
      /*
       * This little snippet is copied from the 'Map' function,
       * and should probably be placed in one proper location
       */
      UpdateWrapper(wmPtr->winPtr);
      wmPtr = ((TkWindow*)tkw)->wmInfoPtr;
      hwnd = wmPtr->wrapper;
      if (hwnd == NULL) {
    Tcl_AppendResult(interp,
      "Can't set icon; window has no wrapper.", (char*)NULL);
    return TCL_ERROR;
      }
  }
  SendMessage(hwnd, WM_SETICON, ICON_SMALL,
    (LPARAM) GetIcon(titlebaricon, ICON_SMALL));
  SendMessage(hwnd, WM_SETICON, ICON_BIG,
    (LPARAM) GetIcon(titlebaricon, ICON_BIG));

  /* Update the iconPtr we keep for each WmInfo structure. */
  if (wmPtr->iconPtr != NULL) {
      /* Free any old icon ptr which is associated with this window. */
      DecrIconRefCount(wmPtr->iconPtr);
  }
  /*
   * We do not need to increment the ref count for the
   * titlebaricon, because it was already incremented when we
   * retrieved it.
   */
  wmPtr->iconPtr = titlebaricon;
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * TkWinGetIcon --
 *
 *  Gets either the default toplevel titlebar icon, or the icon
 *  for a specific toplevel (ICON_SMALL or ICON_BIG).
 *
 * Results:
 *  A Windows HICON.
 *
 * Side effects:
 *  The given window will be forced into existence.
 *
 *----------------------------------------------------------------------
 */
HICON
TkWinGetIcon(Tk_Window tkwin, DWORD iconsize)
{
    WmInfo *wmPtr;
    HICON icon;
    ThreadSpecificData *tsdPtr = (ThreadSpecificData *) 
      Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));

    if (tsdPtr->iconPtr != NULL) {
  /*
   * return default toplevel icon
   */
  return GetIcon(tsdPtr->iconPtr, iconsize);
    }

    /* ensure we operate on the toplevel, that has the icon refs */
    while (!Tk_IsTopLevel(tkwin)) {
  tkwin = Tk_Parent(tkwin);
  if (tkwin == NULL) {
      return NULL;
  }
    }

    if (Tk_WindowId(tkwin) == None) {
  Tk_MakeWindowExist(tkwin);
    }

    wmPtr = ((TkWindow *) tkwin)->wmInfoPtr;
    if (wmPtr->iconPtr != NULL) {
  /*
   * return window toplevel icon
   */
  return GetIcon(wmPtr->iconPtr, iconsize);
    }

    /*
     * Find the icon otherwise associated with the toplevel, or
     * finally with the window class.
     */
    icon = (HICON) SendMessage(wmPtr->wrapper, WM_GETICON, iconsize,
      (LPARAM) NULL);
    if (icon == (HICON) NULL) {
#ifdef _WIN64
  icon = (HICON) GetClassLongPtr(wmPtr->wrapper,
    (iconsize == ICON_BIG) ? GCLP_HICON : GCLP_HICONSM);
#else
  icon = (HICON) GetClassLong(wmPtr->wrapper,
    (iconsize == ICON_BIG) ? GCL_HICON : GCL_HICONSM);
#endif
    }
    return icon;
}

/*
 *----------------------------------------------------------------------
 *
 * ReadIconFromFile --
 *
 *  Read the contents of a file (usually .ico, .icr) and extract an
 *  icon resource, if possible, otherwise check if the shell has an
 *  icon assigned to the given file and use that.  If both of those
 *  fail, then NULL is returned, and an error message will already be
 *  in the interpreter.
 *  
 * Results:
 *  A WinIconPtr structure containing the icons in the file, with
 *  its ref count already incremented. The calling procedure should
 *  either place this structure inside a WmInfo structure, or it should
 *  pass it on to DecrIconRefCount() to ensure no memory leaks occur.
 *
 *  If the given fileName did not contain a valid icon structure,
 *  return NULL.
 *
 * Side effects:
 *  Memory is allocated for the returned structure and the icons
 *  it contains.  If the structure is not wanted, it should be
 *  passed to DecrIconRefCount, and in any case a valid ref count
 *  should be ensured to avoid memory leaks.
 *
 *  Currently icon resources are not shared, so the ref count of
 *  one of these structures will always be 0 or 1.  However all we
 *  need do is implement some sort of lookup function between
 *  filenames and WinIconPtr structures and no other code will need
 *  to be changed.  The pseudo-code for this is implemented below
 *  in the 'if (0)' branch.  It did not seem necessary to implement
 *  this optimisation here, since moving to icon<->image
 *  conversions will probably make it obsolete.
 *
 *----------------------------------------------------------------------
 */
static WinIconPtr
ReadIconFromFile(interp, fileName)
    Tcl_Interp *interp;
    Tcl_Obj *fileName;
{
    WinIconPtr titlebaricon = NULL;

    if (0 /* If we already have an icon for this filename */) {
  titlebaricon = NULL; /* Get the real value from a lookup */
  titlebaricon->refCount++;
  return titlebaricon;
    } else {
  /* First check if it is a .ico file */
  BlockOfIconImagesPtr lpIR;
  lpIR = ReadIconOrCursorFromFile(interp, fileName, TRUE);

  /*
   * Then see if we can ask the shell for the icon for this file.
   * We want both the regular and small icons so that the Alt-Tab
   * (task-switching) display uses the right icon.
   */
  if (lpIR == NULL && shgetfileinfoProc != NULL) {
      SHFILEINFO sfiSM;
      Tcl_DString ds, ds2;
      DWORD *res;
      CONST char *file;

      file = Tcl_TranslateFileName(interp, Tcl_GetString(fileName), &ds);
      if (file == NULL) { return NULL; }
      Tcl_UtfToExternalDString(NULL, file, -1, &ds2);
      Tcl_DStringFree(&ds);
      res = (*shgetfileinfoProc)(Tcl_DStringValue(&ds2), 0, &sfiSM,
        sizeof(SHFILEINFO), SHGFI_SMALLICON|SHGFI_ICON);

      if (res != 0) {
    SHFILEINFO sfi;
    int size;

    Tcl_ResetResult(interp);
    res = (*shgetfileinfoProc)(Tcl_DStringValue(&ds2), 0, &sfi,
      sizeof(SHFILEINFO), SHGFI_ICON);

    /* Account for extra icon, if necessary */
    size = sizeof(BlockOfIconImages) +
        ((res != 0) ? sizeof(ICONIMAGE) : 0);
    lpIR = (BlockOfIconImagesPtr) ckalloc(size);
    if (lpIR == NULL) {
        if (res != 0) {
      DestroyIcon(sfi.hIcon);
        }
        DestroyIcon(sfiSM.hIcon);
        Tcl_DStringFree(&ds2);
        return NULL;
    }
    ZeroMemory(lpIR, size);

    lpIR->nNumImages               = ((res != 0) ? 2 : 1);
    lpIR->IconImages[0].Width      = 16;
    lpIR->IconImages[0].Height     = 16;
    lpIR->IconImages[0].Colors     = 4;
    lpIR->IconImages[0].hIcon      = sfiSM.hIcon;
    /* All other IconImages fields are ignored */

    if (res != 0) {
        lpIR->IconImages[1].Width  = 32;
        lpIR->IconImages[1].Height = 32;
        lpIR->IconImages[1].Colors = 4;
        lpIR->IconImages[1].hIcon  = sfi.hIcon;
    }
      }
      Tcl_DStringFree(&ds2);
  }
  if (lpIR != NULL) {
      titlebaricon = (WinIconPtr) ckalloc(sizeof(WinIconInstance));
      titlebaricon->iconBlock = lpIR;
      titlebaricon->refCount = 1;
  }
  return titlebaricon;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * GetIconFromPixmap --
 *
 *  Turn a Tk Pixmap (i.e. a bitmap) into an icon resource, if
 *  possible, otherwise NULL is returned.
 *
 * Results:
 *  A WinIconPtr structure containing a conversion of the given
 *  bitmap into an icon, with its ref count already incremented.  The
 *  calling procedure should either place this structure inside a
 *  WmInfo structure, or it should pass it on to DecrIconRefCount()
 *  to ensure no memory leaks occur.
 *  
 *  If the given pixmap did not contain a valid icon structure,
 *  return NULL.
 *
 * Side effects:
 *  Memory is allocated for the returned structure and the icons
 *  it contains.  If the structure is not wanted, it should be
 *  passed to DecrIconRefCount, and in any case a valid ref count
 *  should be ensured to avoid memory leaks.
 *  
 *  Currently icon resources are not shared, so the ref count of
 *  one of these structures will always be 0 or 1.  However all we
 *  need do is implement some sort of lookup function between
 *  pixmaps and WinIconPtr structures and no other code will need
 *  to be changed.
 *
 *----------------------------------------------------------------------
 */
static WinIconPtr       
GetIconFromPixmap(dsPtr, pixmap)
    Display *dsPtr;
    Pixmap pixmap;
{
    WinIconPtr titlebaricon = NULL;
    TkWinDrawable* twdPtr = (TkWinDrawable*) pixmap;
    
    if (twdPtr == NULL) {
        return NULL;
    }
    
    if (0 /* If we already have an icon for this pixmap */) {
  titlebaricon = NULL; /* Get the real value from a lookup */
  titlebaricon->refCount++;
  return titlebaricon;
    } else {
  BlockOfIconImagesPtr lpIR;
  ICONINFO icon;
  HICON hIcon;
  int width, height;

  Tk_SizeOfBitmap(dsPtr, pixmap, &width, &height);

  icon.fIcon = TRUE;
  icon.xHotspot = 0;
  icon.yHotspot = 0;
  icon.hbmMask = twdPtr->bitmap.handle;
  icon.hbmColor = twdPtr->bitmap.handle;

  hIcon = CreateIconIndirect(&icon);
  if (hIcon == NULL) {
      return NULL;
  }

  lpIR = (BlockOfIconImagesPtr) ckalloc(sizeof(BlockOfIconImages));
  if (lpIR == NULL) {
      DestroyIcon(hIcon);
      return NULL;
  }

  lpIR->nNumImages = 1;
  lpIR->IconImages[0].Width = width;
  lpIR->IconImages[0].Height = height;
  lpIR->IconImages[0].Colors = 1 << twdPtr->bitmap.depth;
  lpIR->IconImages[0].hIcon = hIcon;
  /* These fields are ignored */
  lpIR->IconImages[0].lpBits = 0;
  lpIR->IconImages[0].dwNumBytes = 0;
  lpIR->IconImages[0].lpXOR = 0;
  lpIR->IconImages[0].lpAND = 0;

  titlebaricon = (WinIconPtr) ckalloc(sizeof(WinIconInstance));
  titlebaricon->iconBlock = lpIR;
  titlebaricon->refCount = 1;
  return titlebaricon;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * DecrIconRefCount --
 *
 *  Reduces the reference count.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  If the ref count falls to zero, free the memory associated
 *  with the icon resource structures.  In this case the pointer
 *  passed into this function is no longer valid.
 *
 *----------------------------------------------------------------------
 */
static void 
DecrIconRefCount(WinIconPtr titlebaricon) {
    titlebaricon->refCount--;

    if (titlebaricon->refCount <= 0) {
  if (titlebaricon->iconBlock != NULL) {
      FreeIconBlock(titlebaricon->iconBlock);
  }
  titlebaricon->iconBlock = NULL;

  ckfree((char*)titlebaricon);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * FreeIconBlock --
 *
 *  Frees all memory associated with a previously loaded
 *  titlebaricon.  The icon block pointer is no longer
 *  valid once this function returns.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *
 *
 *----------------------------------------------------------------------
 */
static void 
FreeIconBlock(BlockOfIconImagesPtr lpIR)
{
    int i;

    /* Free all the bits */
    for (i=0; i< lpIR->nNumImages; i++) {
  if (lpIR->IconImages[i].lpBits != NULL) {
      ckfree((char*)lpIR->IconImages[i].lpBits);
  }
  if (lpIR->IconImages[i].hIcon != NULL) {
      DestroyIcon(lpIR->IconImages[i].hIcon);
  }
    }
    ckfree ((char*)lpIR);
}

/*
 *----------------------------------------------------------------------
 *
 * GetIcon --
 *
 *  Extracts an icon of a given size from an icon resource
 *
 * Results:
 *  Returns the icon, if found, else NULL.
 *
 * Side effects:
 *
 *
 *----------------------------------------------------------------------
 */
static HICON 
GetIcon(WinIconPtr titlebaricon, int icon_size)
{
    BlockOfIconImagesPtr lpIR;
    
    if (titlebaricon == NULL) {
        return NULL;
    }

    lpIR = titlebaricon->iconBlock;
    if (lpIR == NULL) {
  return NULL;
    } else {
  unsigned int size = (icon_size == 0 ? 16 : 32);
  int i;

  for (i = 0; i < lpIR->nNumImages; i++) {
      /* Take the first or a 32x32 16 color icon*/
      if ((lpIR->IconImages[i].Height == size)
         && (lpIR->IconImages[i].Width == size)
         && (lpIR->IconImages[i].Colors >= 4)) {
    return lpIR->IconImages[i].hIcon;
      }
  }

  /* 
   * If we get here, then just return the first one, 
   * it will have to do!
   */
  if (lpIR->nNumImages >= 1) {
      return lpIR->IconImages[0].hIcon;
  }
    }
    return NULL;
}

static HCURSOR 
TclWinReadCursorFromFile(Tcl_Interp* interp, Tcl_Obj* fileName)
{
    BlockOfIconImagesPtr lpIR;
    HICON res = NULL;
    
    lpIR = ReadIconOrCursorFromFile(interp, fileName, FALSE);
    if (lpIR == NULL) {
        return NULL;
    }
    if (lpIR->nNumImages >= 1) {
  res = CopyImage(lpIR->IconImages[0].hIcon, IMAGE_CURSOR,0,0,0);
    }
    FreeIconBlock(lpIR);
    return res;
}

/*
 *----------------------------------------------------------------------
 *
 * ReadIconOrCursorFromFile --
 *
 *  Reads an Icon Resource from an ICO file, as given by
 *  char* fileName - Name of the ICO file. This name should
 *  be in Utf format.
 *
 * Results:
 *  Returns an icon resource, if found, else NULL.
 *
 * Side effects:
 *      May leave error messages in the Tcl interpreter.
 *
 *----------------------------------------------------------------------
 */
static BlockOfIconImagesPtr 
ReadIconOrCursorFromFile(Tcl_Interp* interp, Tcl_Obj* fileName, BOOL isIcon)
{
    BlockOfIconImagesPtr lpIR, lpNew;
    Tcl_Channel          channel;
    int                  i;
    DWORD               dwBytesRead;
    LPICONDIRENTRY       lpIDE;

    /*  Open the file */
    channel = Tcl_FSOpenFileChannel(interp, fileName, "r", 0);
    if (channel == NULL) {
  Tcl_AppendResult(interp,"Error opening file \"", 
       Tcl_GetString(fileName), 
                   "\" for reading",(char*)NULL);
  return NULL;
    }
    if (Tcl_SetChannelOption(interp, channel, "-translation", "binary")
      != TCL_OK) {
  Tcl_Close(NULL, channel);
  return NULL;
    }
    if (Tcl_SetChannelOption(interp, channel, "-encoding", "binary")
      != TCL_OK) {
  Tcl_Close(NULL, channel);
  return NULL;
    }
    /*  Allocate memory for the resource structure */
    lpIR = (BlockOfIconImagesPtr) ckalloc(sizeof(BlockOfIconImages));
    if (lpIR == NULL)    {
  Tcl_AppendResult(interp,"Error allocating memory",(char*)NULL);
  Tcl_Close(NULL, channel);
  return NULL;
    }
    /*  Read in the header */
    if ((lpIR->nNumImages = ReadICOHeader( channel )) == -1)    {
  Tcl_AppendResult(interp,"Invalid file header",(char*)NULL);
  Tcl_Close(NULL, channel);
  ckfree((char*) lpIR );
  return NULL;
    }
    /*  Adjust the size of the struct to account for the images */
    lpNew = (BlockOfIconImagesPtr) ckrealloc((char*)lpIR, 
  sizeof(BlockOfIconImages) + ((lpIR->nNumImages-1) * sizeof(ICONIMAGE)));
    if (lpNew == NULL) {
  Tcl_AppendResult(interp,"Error allocating memory",(char*)NULL);
  Tcl_Close(NULL, channel);
  ckfree( (char*)lpIR );
  return NULL;
    }
    lpIR = lpNew;
    /*  Allocate enough memory for the icon directory entries */
    lpIDE = (LPICONDIRENTRY) ckalloc(lpIR->nNumImages * sizeof(ICONDIRENTRY));
    if (lpIDE == NULL) {
  Tcl_AppendResult(interp,"Error allocating memory",(char*)NULL);
  Tcl_Close(NULL, channel);
  ckfree( (char*)lpIR );
  return NULL;
    }
    /*  Read in the icon directory entries */
    dwBytesRead = Tcl_Read(channel, (char*)lpIDE, 
         lpIR->nNumImages * sizeof( ICONDIRENTRY ));
    if (dwBytesRead != lpIR->nNumImages * sizeof( ICONDIRENTRY ))    {
  Tcl_AppendResult(interp,"Error reading file",(char*)NULL);
  Tcl_Close(NULL, channel);
  ckfree( (char*)lpIR );
  return NULL;
    }
    /* NULL-out everything to make memory management easier */
    for( i = 0; i < lpIR->nNumImages; i++ ) {
  lpIR->IconImages[i].lpBits = NULL;
    }
    /*  Loop through and read in each image */
    for( i = 0; i < lpIR->nNumImages; i++ )    {
  /*  Allocate memory for the resource */
  lpIR->IconImages[i].lpBits = (LPBYTE) ckalloc(lpIDE[i].dwBytesInRes);
  if (lpIR->IconImages[i].lpBits == NULL) {
      Tcl_AppendResult(interp,"Error allocating memory",(char*)NULL);
      goto readError;
  }
  lpIR->IconImages[i].dwNumBytes = lpIDE[i].dwBytesInRes;
  /*  Seek to beginning of this image */
  if (Tcl_Seek(channel, lpIDE[i].dwImageOffset, FILE_BEGIN) == -1) {
      Tcl_AppendResult(interp,"Error seeking in file",(char*)NULL);
      goto readError;
  }
  /*  Read it in */
  dwBytesRead = Tcl_Read( channel, lpIR->IconImages[i].lpBits, 
             lpIDE[i].dwBytesInRes);
  if (dwBytesRead != lpIDE[i].dwBytesInRes) {
      Tcl_AppendResult(interp,"Error reading file",(char*)NULL);
      goto readError;
  }
  /*  Set the internal pointers appropriately */
  if (!AdjustIconImagePointers( &(lpIR->IconImages[i]))) {
      Tcl_AppendResult(interp,"Error converting to internal format",
           (char*)NULL);
      goto readError;
  }
  lpIR->IconImages[i].hIcon =
      MakeIconOrCursorFromResource(&(lpIR->IconImages[i]), isIcon);
    }
    /*  Clean up */
    ckfree((char*)lpIDE);
    Tcl_Close(NULL, channel);
    if (lpIR == NULL){
  Tcl_AppendResult(interp,"Reading of ", Tcl_GetString(fileName),
       " failed!",(char*)NULL);
  return NULL;
    }
    return lpIR;
  readError:
    Tcl_Close(NULL, channel);
    for( i = 0; i < lpIR->nNumImages; i++ )    {
      if (lpIR->IconImages[i].lpBits != NULL) {
      ckfree((char*)lpIR->IconImages[i].lpBits);
  }
    }
    ckfree((char*)lpIDE );
    ckfree((char*)lpIR );
    return NULL;
}

/*
 *----------------------------------------------------------------------
 *
 * GetTopLevel --
 *
 *  This function retrieves the TkWindow associated with the
 *  given HWND.
 *
 * Results:
 *  Returns the matching TkWindow.
 *
 * Side effects:
 *  None.
 *
 *----------------------------------------------------------------------
 */
static TkWindow *
GetTopLevel(hwnd)
    HWND hwnd;
{
    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
            Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));

    /*
     * If this function is called before the CreateWindowEx call
     * has completed, then the user data slot will not have been
     * set yet, so we use the global createWindow variable.
     */

    if (tsdPtr->createWindow) {
  return tsdPtr->createWindow;
    }
#ifdef _WIN64
    return (TkWindow *) GetWindowLongPtr(hwnd, GWLP_USERDATA);
#else
    return (TkWindow *) GetWindowLong(hwnd, GWL_USERDATA);
#endif
}

/*
 *----------------------------------------------------------------------
 *
 * SetLimits --
 *
 *  Updates the minimum and maximum window size constraints.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Changes the values of the info pointer to reflect the current
 *  minimum and maximum size values.
 *
 *----------------------------------------------------------------------
 */

static void
SetLimits(hwnd, info)
    HWND hwnd;
    MINMAXINFO *info;
{
    register WmInfo *wmPtr;
    int maxWidth, maxHeight;
    int minWidth, minHeight;
    int base;
    TkWindow *winPtr = GetTopLevel(hwnd);

    if (winPtr == NULL) {
  return;
    }

    wmPtr = winPtr->wmInfoPtr;

    /*
     * Copy latest constraint info.
     */

    wmPtr->defMinWidth = info->ptMinTrackSize.x;
    wmPtr->defMinHeight = info->ptMinTrackSize.y;
    wmPtr->defMaxWidth = info->ptMaxTrackSize.x;
    wmPtr->defMaxHeight = info->ptMaxTrackSize.y;

    GetMaxSize(wmPtr, &maxWidth, &maxHeight);
    GetMinSize(wmPtr, &minWidth, &minHeight);

    if (wmPtr->gridWin != NULL) {
  base = winPtr->reqWidth - (wmPtr->reqGridWidth * wmPtr->widthInc);
  if (base < 0) {
      base = 0;
  }
  base += wmPtr->borderWidth;
  info->ptMinTrackSize.x = base + (minWidth * wmPtr->widthInc);
  info->ptMaxTrackSize.x = base + (maxWidth * wmPtr->widthInc);

  base = winPtr->reqHeight - (wmPtr->reqGridHeight * wmPtr->heightInc);
  if (base < 0) {
      base = 0;
  }
  base += wmPtr->borderHeight;
  info->ptMinTrackSize.y = base + (minHeight * wmPtr->heightInc);
  info->ptMaxTrackSize.y = base + (maxHeight * wmPtr->heightInc);
    } else {
  info->ptMaxTrackSize.x = maxWidth + wmPtr->borderWidth;
  info->ptMaxTrackSize.y = maxHeight + wmPtr->borderHeight;
  info->ptMinTrackSize.x = minWidth + wmPtr->borderWidth;
  info->ptMinTrackSize.y = minHeight + wmPtr->borderHeight;
    }

    /*
     * If the window isn't supposed to be resizable, then set the
     * minimum and maximum dimensions to be the same as the current size.
     */

    if (!(wmPtr->flags & WM_SYNC_PENDING)) {
  if (wmPtr->flags & WM_WIDTH_NOT_RESIZABLE) {
      info->ptMinTrackSize.x = winPtr->changes.width
    + wmPtr->borderWidth;
      info->ptMaxTrackSize.x = info->ptMinTrackSize.x;
  }
  if (wmPtr->flags & WM_HEIGHT_NOT_RESIZABLE) {
      info->ptMinTrackSize.y = winPtr->changes.height
    + wmPtr->borderHeight;
      info->ptMaxTrackSize.y = info->ptMinTrackSize.y;
  }
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkWinWmCleanup --
 *
 *  Unregisters classes registered by the window manager. This is
 *  called from the DLL main entry point when the DLL is unloaded.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  The window classes are discarded.
 *
 *----------------------------------------------------------------------
 */

void
TkWinWmCleanup(hInstance)
    HINSTANCE hInstance;
{
    ThreadSpecificData *tsdPtr;

    /*
     * If we're using stubs to access the Tcl library, and they
     * haven't been initialized, we can't call Tcl_GetThreadData.
     */

#ifdef USE_TCL_STUBS
    if (tclStubsPtr == NULL) {
        return;
    }
#endif

    if (!initialized) {
  return;
    }
    initialized = 0;

    tsdPtr = (ThreadSpecificData *)
            Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));

    if (!tsdPtr->initialized) {
        return;
    }
    tsdPtr->initialized = 0;

    UnregisterClass(TK_WIN_TOPLEVEL_CLASS_NAME, hInstance);
#ifndef TCL_THREADS
    /*
     * Clean up specialized class created for layered windows.
     */
    if (setLayeredWindowAttributesProc != NULL) {
  UnregisterClass(TK_WIN_TOPLEVEL_NOCDC_CLASS_NAME, hInstance);
  setLayeredWindowAttributesProc = NULL;
    }
#endif
}

/*
 *--------------------------------------------------------------
 *
 * TkWmNewWindow --
 *
 *  This procedure is invoked whenever a new top-level
 *  window is created.  Its job is to initialize the WmInfo
 *  structure for the window.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  A WmInfo structure gets allocated and initialized.
 *
 *--------------------------------------------------------------
 */

void
TkWmNewWindow(winPtr)
    TkWindow *winPtr;    /* Newly-created top-level window. */
{
    register WmInfo *wmPtr;

    wmPtr = (WmInfo *) ckalloc(sizeof(WmInfo));

    /*
     * Initialize full structure, then set what isn't NULL
     */
    ZeroMemory(wmPtr, sizeof(WmInfo));
    winPtr->wmInfoPtr = wmPtr;
    wmPtr->winPtr = winPtr;
    wmPtr->hints.flags = InputHint | StateHint;
    wmPtr->hints.input = True;
    wmPtr->hints.initial_state = NormalState;
    wmPtr->hints.icon_pixmap = None;
    wmPtr->hints.icon_window = None;
    wmPtr->hints.icon_x = wmPtr->hints.icon_y = 0;
    wmPtr->hints.icon_mask = None;
    wmPtr->hints.window_group = None;

    /*
     * Default the maximum dimensions to the size of the display.
     */

    wmPtr->defMinWidth = wmPtr->defMinHeight = 0;
    wmPtr->defMaxWidth = DisplayWidth(winPtr->display, winPtr->screenNum);
    wmPtr->defMaxHeight = DisplayHeight(winPtr->display, winPtr->screenNum);
    wmPtr->minWidth = wmPtr->minHeight = 1;
    wmPtr->maxWidth = wmPtr->maxHeight = 0;
    wmPtr->widthInc = wmPtr->heightInc = 1;
    wmPtr->minAspect.x = wmPtr->minAspect.y = 1;
    wmPtr->maxAspect.x = wmPtr->maxAspect.y = 1;
    wmPtr->reqGridWidth = wmPtr->reqGridHeight = -1;
    wmPtr->gravity = NorthWestGravity;
    wmPtr->width = -1;
    wmPtr->height = -1;
    wmPtr->x = winPtr->changes.x;
    wmPtr->y = winPtr->changes.y;
    wmPtr->alpha = 1.0;

    wmPtr->configWidth = -1;
    wmPtr->configHeight = -1;
    wmPtr->flags = WM_NEVER_MAPPED;
    wmPtr->nextPtr = winPtr->dispPtr->firstWmPtr;
    winPtr->dispPtr->firstWmPtr = wmPtr;

    /*
     * Tk must monitor structure events for top-level windows, in order
     * to detect size and position changes caused by window managers.
     */

    Tk_CreateEventHandler((Tk_Window) winPtr, StructureNotifyMask,
      TopLevelEventProc, (ClientData) winPtr);

    /*
     * Arrange for geometry requests to be reflected from the window
     * to the window manager.
     */

    Tk_ManageGeometry((Tk_Window) winPtr, &wmMgrType, (ClientData) 0);
}

/*
 *----------------------------------------------------------------------
 *
 * UpdateWrapper --
 *
 *  This function creates the wrapper window that contains the
 *  window decorations and menus for a toplevel.  This function
 *  may be called after a window is mapped to change the window
 *  style.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Destroys any old wrapper window and replaces it with a newly
 *  created wrapper.
 *
 *----------------------------------------------------------------------
 */

static void
UpdateWrapper(winPtr)
    TkWindow *winPtr;    /* Top-level window to redecorate. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    HWND parentHWND, oldWrapper = wmPtr->wrapper;
    HWND child, nextHWND, focusHWND;
    int x, y, width, height, state;
    WINDOWPLACEMENT place;
    HICON hSmallIcon = NULL;
    HICON hBigIcon = NULL;
    Tcl_DString titleString, classString;
    int *childStateInfo = NULL;
    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
            Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));

    if (winPtr->window == None) {
  /*
   * Ensure existence of the window to update the wrapper for.
   */
  Tk_MakeWindowExist((Tk_Window) winPtr);
    }

    child = TkWinGetHWND(winPtr->window);
    parentHWND = NULL;
    /*
     * nextHWND will help us maintain Z order.
     * focusHWND will help us maintain focus, if we had it.
     */
    nextHWND = NULL;
    focusHWND = GetFocus();
    if ((oldWrapper == NULL) || (oldWrapper != GetForegroundWindow())) {
  focusHWND = NULL;
    }

    if (winPtr->flags & TK_EMBEDDED) {
  wmPtr->wrapper = (HWND) winPtr->privatePtr;
  if (wmPtr->wrapper == NULL) {
      Tcl_Panic("UpdateWrapper: Cannot find container window");
  }
  if (!IsWindow(wmPtr->wrapper)) {
      Tcl_Panic("UpdateWrapper: Container was destroyed");
  }

    } else {
  /*
   * Pick the decorative frame style.  Override redirect windows get
   * created as undecorated popups if they have no transient parent,
   * otherwise they are children.  This allows splash screens to operate
   * as an independent window, while having dropdows (like for a
   * combobox) not grab focus away from their parent.  Transient windows
   * get a modal dialog frame.  Neither override, nor transient windows
   * appear in the Windows taskbar.  Note that a transient window does
   * not resize by default, so we need to explicitly add the
   * WS_THICKFRAME style if we want it to be resizeable.
   */

  if (winPtr->atts.override_redirect) {
      wmPtr->style = WM_OVERRIDE_STYLE;
      wmPtr->exStyle = EX_OVERRIDE_STYLE;
      /* parent must be desktop even if we have a transient parent */
      parentHWND = GetDesktopWindow();
      if (wmPtr->masterPtr) {
    wmPtr->style |= WS_CHILD;
      } else {
    wmPtr->style |= WS_POPUP;
      }
  } else if (wmPtr->masterPtr) {
      wmPtr->style = WM_TRANSIENT_STYLE;
      wmPtr->exStyle = EX_TRANSIENT_STYLE;
      parentHWND = Tk_GetHWND(Tk_WindowId(wmPtr->masterPtr));
      if (! ((wmPtr->flags & WM_WIDTH_NOT_RESIZABLE) &&
        (wmPtr->flags & WM_HEIGHT_NOT_RESIZABLE))) {
    wmPtr->style |= WS_THICKFRAME;
      }
  } else {
      wmPtr->style = WM_TOPLEVEL_STYLE;
      wmPtr->exStyle = EX_TOPLEVEL_STYLE;
  }

  wmPtr->style   |= wmPtr->styleConfig;
  wmPtr->exStyle |= wmPtr->exStyleConfig;

  if ((wmPtr->flags & WM_WIDTH_NOT_RESIZABLE)
    && (wmPtr->flags & WM_HEIGHT_NOT_RESIZABLE)) {
      wmPtr->style &= ~ (WS_MAXIMIZEBOX | WS_SIZEBOX);
  }

  /*
   * Compute the geometry of the parent and child windows.
   */

  wmPtr->flags |= WM_CREATE_PENDING|WM_MOVE_PENDING;
  UpdateGeometryInfo((ClientData)winPtr);
  wmPtr->flags &= ~(WM_CREATE_PENDING|WM_MOVE_PENDING);

  width = wmPtr->borderWidth + winPtr->changes.width;
  height = wmPtr->borderHeight + winPtr->changes.height;

  /*
   * Set the initial position from the user or program specified
   * location.  If nothing has been specified, then let the system
   * pick a location.
   */

  if (!(wmPtr->sizeHintsFlags & (USPosition | PPosition))
    && (wmPtr->flags & WM_NEVER_MAPPED)) {
      x = CW_USEDEFAULT;
      y = CW_USEDEFAULT;
  } else {
      x = winPtr->changes.x;
      y = winPtr->changes.y;
  }

  /*
   * Create the containing window, and set the user data to point
   * to the TkWindow.
   */

  tsdPtr->createWindow = winPtr;
  Tcl_WinUtfToTChar(((wmPtr->title != NULL) ?
                           wmPtr->title : winPtr->nameUid), -1, &titleString);
#ifndef TCL_THREADS
  /*
   * Transparent windows require a non-CS_CLASSDC window class.
   */
  if ((wmPtr->exStyleConfig & WS_EX_LAYERED)
    && setLayeredWindowAttributesProc != NULL) {
      Tcl_WinUtfToTChar(TK_WIN_TOPLEVEL_NOCDC_CLASS_NAME,
        -1, &classString);
  } else
#endif
      Tcl_WinUtfToTChar(TK_WIN_TOPLEVEL_CLASS_NAME, -1, &classString);
  wmPtr->wrapper = (*tkWinProcs->createWindowEx)(wmPtr->exStyle,
    (LPCTSTR) Tcl_DStringValue(&classString),
    (LPCTSTR) Tcl_DStringValue(&titleString),
    wmPtr->style, x, y, width, height,
    parentHWND, NULL, Tk_GetHINSTANCE(), NULL);
  Tcl_DStringFree(&classString);
  Tcl_DStringFree(&titleString);
#ifdef _WIN64
  SetWindowLongPtr(wmPtr->wrapper, GWLP_USERDATA, (LONG_PTR) winPtr);
#else
  SetWindowLong(wmPtr->wrapper, GWL_USERDATA, (LONG) winPtr);
#endif
  tsdPtr->createWindow = NULL;

  if ((wmPtr->exStyleConfig & WS_EX_LAYERED)
    && setLayeredWindowAttributesProc != NULL) {
      /*
       * The user supplies a double from [0..1], but Windows wants an
       * int (transparent) 0..255 (opaque), so do the translation.
       * Add the 0.5 to round the value.
       */
      setLayeredWindowAttributesProc((HWND) wmPtr->wrapper,
        (COLORREF) NULL, (BYTE) (wmPtr->alpha * 255 + 0.5),
        LWA_ALPHA);
  } else {
      /*
       * Layering not used or supported.
       */
      wmPtr->alpha = 1.0;
  }

  place.length = sizeof(WINDOWPLACEMENT);
  GetWindowPlacement(wmPtr->wrapper, &place);
  wmPtr->x = place.rcNormalPosition.left;
  wmPtr->y = place.rcNormalPosition.top;

  if (!(winPtr->flags & TK_ALREADY_DEAD)) {
      TkInstallFrameMenu((Tk_Window) winPtr);
  }

  if (oldWrapper && (oldWrapper != wmPtr->wrapper)
    && !(wmPtr->exStyle & WS_EX_TOPMOST)) {
      /*
       * We will adjust wrapper to have the same Z order as oldWrapper
       * if it isn't a TOPMOST window.
       */
      nextHWND = GetNextWindow(oldWrapper, GW_HWNDPREV);
  }
    }

    /*
     * Now we need to reparent the contained window and set its
     * style appropriately.  Be sure to update the style first so that
     * Windows doesn't try to set the focus to the child window.
     */

#ifdef _WIN64
    SetWindowLongPtr(child, GWL_STYLE,
      WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS);
#else
    SetWindowLong(child, GWL_STYLE,
      WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS);
#endif
    if (winPtr->flags & TK_EMBEDDED) {
#ifdef _WIN64
  SetWindowLongPtr(child, GWLP_WNDPROC, (LONG_PTR) TopLevelProc);
#else
  SetWindowLong(child, GWL_WNDPROC, (LONG) TopLevelProc);
#endif
    }
    SetParent(child, wmPtr->wrapper);
    if (oldWrapper) {
  hSmallIcon = (HICON) SendMessage(oldWrapper, WM_GETICON, ICON_SMALL,
    (LPARAM) NULL);
  hBigIcon = (HICON) SendMessage(oldWrapper, WM_GETICON, ICON_BIG,
    (LPARAM) NULL);
    }

    if (oldWrapper && (oldWrapper != wmPtr->wrapper)
      && (oldWrapper != GetDesktopWindow())) {
#ifdef _WIN64
  SetWindowLongPtr(oldWrapper, GWLP_USERDATA, (LONG) NULL);
#else
  SetWindowLong(oldWrapper, GWL_USERDATA, (LONG) NULL);
#endif

  if (wmPtr->numTransients > 0) {
      /*
       * Unset the current wrapper as the parent for all transient
       * children for whom this is the master
       */
      WmInfo *wmPtr2;

      childStateInfo = (int *)ckalloc((unsigned) wmPtr->numTransients
    * sizeof(int));
      state = 0;
      for (wmPtr2 = winPtr->dispPtr->firstWmPtr; wmPtr2 != NULL;
     wmPtr2 = wmPtr2->nextPtr) {
    if (wmPtr2->masterPtr == winPtr) {
        if (!(wmPtr2->flags & WM_NEVER_MAPPED)) {
      childStateInfo[state++] = wmPtr2->hints.initial_state;
      SetParent(TkWinGetHWND(wmPtr2->winPtr->window), NULL);
        }
    }
      }
  }
  /*
   * Remove the menubar before destroying the window so the menubar
   * isn't destroyed.
   */

  SetMenu(oldWrapper, NULL);
  DestroyWindow(oldWrapper);
    }

    wmPtr->flags &= ~WM_NEVER_MAPPED;
    SendMessage(wmPtr->wrapper, TK_ATTACHWINDOW, (WPARAM) child, 0);

    /*
     * Force an initial transition from withdrawn to the real
     * initial state.  Set the Z order based on previous wrapper
     * before we set the state.
     */

    state = wmPtr->hints.initial_state;
    wmPtr->hints.initial_state = WithdrawnState;
    if (nextHWND) {
  SetWindowPos(wmPtr->wrapper, nextHWND, 0, 0, 0, 0,
    SWP_NOMOVE|SWP_NOSIZE|SWP_NOACTIVATE|SWP_NOSENDCHANGING
    |SWP_NOOWNERZORDER);
    }
    TkpWmSetState(winPtr, state);

    if (hSmallIcon != NULL) {
  SendMessage(wmPtr->wrapper,WM_SETICON,ICON_SMALL,(LPARAM)hSmallIcon);
    }
    if (hBigIcon != NULL) {
  SendMessage(wmPtr->wrapper,WM_SETICON,ICON_BIG,(LPARAM)hBigIcon);
    }

    /*
     * If we are embedded then force a mapping of the window now,
     * because we do not necessarily own the wrapper and may not
     * get another opportunity to map ourselves. We should not be
     * in either iconified or zoomed states when we get here, so
     * it is safe to just check for TK_EMBEDDED without checking
     * what state we are supposed to be in (default to NormalState).
     */

    if (winPtr->flags & TK_EMBEDDED) {
  XMapWindow(winPtr->display, winPtr->window);
    }

    /*
     * Set up menus on the wrapper if required.
     */

    if (wmPtr->hMenu != NULL) {
  wmPtr->flags = WM_SYNC_PENDING;
  SetMenu(wmPtr->wrapper, wmPtr->hMenu);
  wmPtr->flags &= ~WM_SYNC_PENDING;
    }

    if (childStateInfo) {
  if (wmPtr->numTransients > 0) {
      /*
       * Reset all transient children for whom this is the master
       */
      WmInfo *wmPtr2;

      state = 0;
      for (wmPtr2 = winPtr->dispPtr->firstWmPtr; wmPtr2 != NULL;
     wmPtr2 = wmPtr2->nextPtr) {
    if (wmPtr2->masterPtr == winPtr) {
        if (!(wmPtr2->flags & WM_NEVER_MAPPED)) {
      UpdateWrapper(wmPtr2->winPtr);
      TkpWmSetState(wmPtr2->winPtr, childStateInfo[state++]);
        }
    }
      }
  }

  ckfree((char *) childStateInfo);
    }

    /*
     * If this is the first window created by the application, then
     * we should activate the initial window.  Otherwise, if this had
     * the focus, we need to restore that.
     * XXX: Rewrapping generates a <FocusOut> and <FocusIn> that would
     * XXX: best be avoided, if we could safely mask them.
     */

    if (tsdPtr->firstWindow) {
  tsdPtr->firstWindow = 0;
  SetActiveWindow(wmPtr->wrapper);
    } else if (focusHWND) {
  SetFocus(focusHWND);
    }
}

/*
 *--------------------------------------------------------------
 *
 * TkWmMapWindow --
 *
 *  This procedure is invoked to map a top-level window.  This
 *  module gets a chance to update all window-manager-related
 *  information in properties before the window manager sees
 *  the map event and checks the properties.  It also gets to
 *  decide whether or not to even map the window after all.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Properties of winPtr may get updated to provide up-to-date
 *  information to the window manager.  The window may also get
 *  mapped, but it may not be if this procedure decides that
 *  isn't appropriate (e.g. because the window is withdrawn).
 *
 *--------------------------------------------------------------
 */

void
TkWmMapWindow(winPtr)
    TkWindow *winPtr;    /* Top-level window that's about to
         * be mapped. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
            Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));

    if (!tsdPtr->initialized) {
  InitWm();
    }

    if (wmPtr->flags & WM_NEVER_MAPPED) {
  /*
   * Don't map a transient if the master is not mapped.
   */

  if (wmPtr->masterPtr != NULL &&
          !Tk_IsMapped(wmPtr->masterPtr)) {
      wmPtr->hints.initial_state = WithdrawnState;
      return;
  }
    } else {
  if (wmPtr->hints.initial_state == WithdrawnState) {
      return;
  }

  /*
   * Map the window in either the iconified or normal state.  Note that
   * we only send a map event if the window is in the normal state.
   */

  TkpWmSetState(winPtr, wmPtr->hints.initial_state);
    }

    /*
     * This is the first time this window has ever been mapped.
     * Store all the window-manager-related information for the
     * window.
     */

    UpdateWrapper(winPtr);
}

/*
 *--------------------------------------------------------------
 *
 * TkWmUnmapWindow --
 *
 *  This procedure is invoked to unmap a top-level window.  The
 *  only thing it does special is unmap the decorative frame before
 *  unmapping the toplevel window.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Unmaps the decorative frame and the window.
 *
 *--------------------------------------------------------------
 */

void
TkWmUnmapWindow(winPtr)
    TkWindow *winPtr;    /* Top-level window that's about to
         * be unmapped. */
{
    TkpWmSetState(winPtr, WithdrawnState);
}

/*
 *----------------------------------------------------------------------
 *
 * TkpWmSetState --
 *
 *  Sets the window manager state for the wrapper window of a
 *  given toplevel window.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  May maximize, minimize, restore, or withdraw a window.
 *
 *----------------------------------------------------------------------
 */

void
TkpWmSetState(winPtr, state)
     TkWindow *winPtr;    /* Toplevel window to operate on. */
     int state;      /* One of IconicState, ZoomState, NormalState,
         * or WithdrawnState. */
{
    WmInfo *wmPtr = winPtr->wmInfoPtr;
    int cmd;

    if (wmPtr->flags & WM_NEVER_MAPPED) {
  wmPtr->hints.initial_state = state;
  return;
    }

    wmPtr->flags |= WM_SYNC_PENDING;
    if (state == WithdrawnState) {
  cmd = SW_HIDE;
    } else if (state == IconicState) {
  cmd = SW_SHOWMINNOACTIVE;
    } else if (state == NormalState) {
  cmd = SW_SHOWNOACTIVATE;
    } else if (state == ZoomState) {
  cmd = SW_SHOWMAXIMIZED;
    }

    ShowWindow(wmPtr->wrapper, cmd);
    wmPtr->flags &= ~WM_SYNC_PENDING;
}

/*
 *--------------------------------------------------------------
 *
 * TkWmDeadWindow --
 *
 *  This procedure is invoked when a top-level window is
 *  about to be deleted.  It cleans up the wm-related data
 *  structures for the window.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  The WmInfo structure for winPtr gets freed up.
 *
 *--------------------------------------------------------------
 */

void
TkWmDeadWindow(winPtr)
    TkWindow *winPtr;    /* Top-level window that's being deleted. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    WmInfo *wmPtr2;

    if (wmPtr == NULL) {
  return;
    }

    /*
     * Clean up event related window info.
     */

    if (winPtr->dispPtr->firstWmPtr == wmPtr) {
  winPtr->dispPtr->firstWmPtr = wmPtr->nextPtr;
    } else {
  register WmInfo *prevPtr;
  for (prevPtr = winPtr->dispPtr->firstWmPtr; ;
       prevPtr = prevPtr->nextPtr) {
      if (prevPtr == NULL) {
    Tcl_Panic("couldn't unlink window in TkWmDeadWindow");
      }
      if (prevPtr->nextPtr == wmPtr) {
    prevPtr->nextPtr = wmPtr->nextPtr;
    break;
      }
  }
    }

    /*
     * Reset all transient windows whose master is the dead window.
     */

    for (wmPtr2 = winPtr->dispPtr->firstWmPtr; wmPtr2 != NULL;
   wmPtr2 = wmPtr2->nextPtr) {
  if (wmPtr2->masterPtr == winPtr) {
      wmPtr->numTransients--;
      Tk_DeleteEventHandler((Tk_Window) wmPtr2->masterPtr,
              VisibilityChangeMask|StructureNotifyMask,
              WmWaitVisibilityOrMapProc, (ClientData) wmPtr2->winPtr);
      wmPtr2->masterPtr = NULL;
      if ((wmPtr2->wrapper != None)
        && !(wmPtr2->flags & (WM_NEVER_MAPPED))) {
    UpdateWrapper(wmPtr2->winPtr);
      }
  }
    }
    if (wmPtr->numTransients != 0)
        Tcl_Panic("numTransients should be 0");

    if (wmPtr->title != NULL) {
  ckfree(wmPtr->title);
    }
    if (wmPtr->iconName != NULL) {
  ckfree(wmPtr->iconName);
    }
    if (wmPtr->hints.flags & IconPixmapHint) {
  Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_pixmap);
    }
    if (wmPtr->hints.flags & IconMaskHint) {
  Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_mask);
    }
    if (wmPtr->leaderName != NULL) {
  ckfree(wmPtr->leaderName);
    }
    if (wmPtr->icon != NULL) {
  wmPtr2 = ((TkWindow *) wmPtr->icon)->wmInfoPtr;
  wmPtr2->iconFor = NULL;
    }
    if (wmPtr->iconFor != NULL) {
  wmPtr2 = ((TkWindow *) wmPtr->iconFor)->wmInfoPtr;
  wmPtr2->icon = NULL;
  wmPtr2->hints.flags &= ~IconWindowHint;
    }
    while (wmPtr->protPtr != NULL) {
  ProtocolHandler *protPtr;

  protPtr = wmPtr->protPtr;
  wmPtr->protPtr = protPtr->nextPtr;
  Tcl_EventuallyFree((ClientData) protPtr, TCL_DYNAMIC);
    }
    if (wmPtr->cmdArgv != NULL) {
  ckfree((char *) wmPtr->cmdArgv);
    }
    if (wmPtr->clientMachine != NULL) {
  ckfree((char *) wmPtr->clientMachine);
    }
    if (wmPtr->flags & WM_UPDATE_PENDING) {
  Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
    }
    if (wmPtr->masterPtr != NULL) {
  wmPtr2 = wmPtr->masterPtr->wmInfoPtr;
  /*
   * If we had a master, tell them that we aren't tied
   * to them anymore
   */
  if (wmPtr2 != NULL) {
      wmPtr2->numTransients--;
  }
  Tk_DeleteEventHandler((Tk_Window) wmPtr->masterPtr,
    VisibilityChangeMask|StructureNotifyMask,
    WmWaitVisibilityOrMapProc, (ClientData) winPtr);
  wmPtr->masterPtr = NULL;
    }

    /*
     * Destroy the decorative frame window.
     */

    if (!(winPtr->flags & TK_EMBEDDED)) {
  if (wmPtr->wrapper != NULL) {
      DestroyWindow(wmPtr->wrapper);
  } else {
      DestroyWindow(Tk_GetHWND(winPtr->window));
  }
    }
    if (wmPtr->iconPtr != NULL) {
  /*
   * This may delete the icon resource data.  I believe we
   * should do this after destroying the decorative frame,
   * because the decorative frame is using this icon.
   */
        DecrIconRefCount(wmPtr->iconPtr);
    }

    ckfree((char *) wmPtr);
    winPtr->wmInfoPtr = NULL;
}

/*
 *--------------------------------------------------------------
 *
 * TkWmSetClass --
 *
 *  This procedure is invoked whenever a top-level window's
 *  class is changed.  If the window has been mapped then this
 *  procedure updates the window manager property for the
 *  class.  If the window hasn't been mapped, the update is
 *  deferred until just before the first mapping.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  A window property may get updated.
 *
 *--------------------------------------------------------------
 */

void
TkWmSetClass(winPtr)
    TkWindow *winPtr;    /* Newly-created top-level window. */
{
    return;
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_WmObjCmd --
 *
 *  This procedure is invoked to process the "wm" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

  /* ARGSUSED */
int
Tk_WmObjCmd(clientData, interp, objc, objv)
    ClientData clientData;  /* Main window associated with
         * interpreter. */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    Tk_Window tkwin = (Tk_Window) clientData;
    static CONST char *optionStrings[] = {
  "aspect", "attributes", "client", "colormapwindows",
  "command", "deiconify", "focusmodel", "frame",
  "geometry", "grid", "group", "iconbitmap",
  "iconify", "iconmask", "iconname",
  "iconphoto", "iconposition",
  "iconwindow", "maxsize", "minsize", "overrideredirect",
        "positionfrom", "protocol", "resizable", "sizefrom",
        "stackorder", "state", "title", "transient",
  "withdraw", (char *) NULL };
    enum options {
        WMOPT_ASPECT, WMOPT_ATTRIBUTES, WMOPT_CLIENT, WMOPT_COLORMAPWINDOWS,
  WMOPT_COMMAND, WMOPT_DEICONIFY, WMOPT_FOCUSMODEL, WMOPT_FRAME,
  WMOPT_GEOMETRY, WMOPT_GRID, WMOPT_GROUP, WMOPT_ICONBITMAP,
  WMOPT_ICONIFY, WMOPT_ICONMASK, WMOPT_ICONNAME,
  WMOPT_ICONPHOTO, WMOPT_ICONPOSITION,
  WMOPT_ICONWINDOW, WMOPT_MAXSIZE, WMOPT_MINSIZE, WMOPT_OVERRIDEREDIRECT,
        WMOPT_POSITIONFROM, WMOPT_PROTOCOL, WMOPT_RESIZABLE, WMOPT_SIZEFROM,
        WMOPT_STACKORDER, WMOPT_STATE, WMOPT_TITLE, WMOPT_TRANSIENT,
  WMOPT_WITHDRAW };
    int index, length;
    char *argv1;
    TkWindow *winPtr;
    TkDisplay *dispPtr = ((TkWindow *) tkwin)->dispPtr;

    if (objc < 2) {
  wrongNumArgs:
  Tcl_WrongNumArgs(interp, 1, objv, "option window ?arg ...?");
  return TCL_ERROR;
    }

    argv1 = Tcl_GetStringFromObj(objv[1], &length);
    if ((argv1[0] == 't') && (strncmp(argv1, "tracing", length) == 0)
      && (length >= 3)) {
  int wmTracing;
  if ((objc != 2) && (objc != 3)) {
      Tcl_WrongNumArgs(interp, 2, objv, "?boolean?");
      return TCL_ERROR;
  }
  if (objc == 2) {
      Tcl_SetResult(interp,
        ((dispPtr->flags & TK_DISPLAY_WM_TRACING) ? "on" : "off"),
        TCL_STATIC);
      return TCL_OK;
  }
  if (Tcl_GetBooleanFromObj(interp, objv[2], &wmTracing) != TCL_OK) {
      return TCL_ERROR;
  }
  if (wmTracing) {
      dispPtr->flags |= TK_DISPLAY_WM_TRACING;
  } else {
      dispPtr->flags &= ~TK_DISPLAY_WM_TRACING;
  }
  return TCL_OK;
    }

    if (Tcl_GetIndexFromObj(interp, objv[1], optionStrings, "option", 0,
      &index) != TCL_OK) {
  return TCL_ERROR;
    }

    if (objc < 3) {
  goto wrongNumArgs;
    }

    if (TkGetWindowFromObj(interp, tkwin, objv[2], (Tk_Window *) &winPtr)
      != TCL_OK) {
  return TCL_ERROR;
    }
    if (!Tk_IsTopLevel(winPtr)) {
  Tcl_AppendResult(interp, "window \"", winPtr->pathName,
    "\" isn't a top-level window", (char *) NULL);
  return TCL_ERROR;
    }

    switch ((enum options) index) {
      case WMOPT_ASPECT:
  return WmAspectCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_ATTRIBUTES:
  return WmAttributesCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_CLIENT:
  return WmClientCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_COLORMAPWINDOWS:
  return WmColormapwindowsCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_COMMAND:
  return WmCommandCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_DEICONIFY:
  return WmDeiconifyCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_FOCUSMODEL:
  return WmFocusmodelCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_FRAME:
  return WmFrameCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_GEOMETRY:
  return WmGeometryCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_GRID:
  return WmGridCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_GROUP:
  return WmGroupCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_ICONBITMAP:
  return WmIconbitmapCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_ICONIFY:
  return WmIconifyCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_ICONMASK:
  return WmIconmaskCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_ICONNAME:
  return WmIconnameCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_ICONPHOTO:
        return WmIconphotoCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_ICONPOSITION:
  return WmIconpositionCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_ICONWINDOW:
  return WmIconwindowCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_MAXSIZE:
  return WmMaxsizeCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_MINSIZE:
  return WmMinsizeCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_OVERRIDEREDIRECT:
  return WmOverrideredirectCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_POSITIONFROM:
  return WmPositionfromCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_PROTOCOL:
  return WmProtocolCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_RESIZABLE:
  return WmResizableCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_SIZEFROM:
  return WmSizefromCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_STACKORDER:
  return WmStackorderCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_STATE:
  return WmStateCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_TITLE:
  return WmTitleCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_TRANSIENT:
  return WmTransientCmd(tkwin, winPtr, interp, objc, objv);
      case WMOPT_WITHDRAW:
  return WmWithdrawCmd(tkwin, winPtr, interp, objc, objv);
    }

    /* This should not happen */
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *
 * WmAspectCmd --
 *
 *  This procedure is invoked to process the "wm aspect" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmAspectCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    int numer1, denom1, numer2, denom2;

    if ((objc != 3) && (objc != 7)) {
  Tcl_WrongNumArgs(interp, 2, objv,
    "window ?minNumer minDenom maxNumer maxDenom?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  if (wmPtr->sizeHintsFlags & PAspect) {
      char buf[TCL_INTEGER_SPACE * 4];

      sprintf(buf, "%d %d %d %d", wmPtr->minAspect.x,
        wmPtr->minAspect.y, wmPtr->maxAspect.x,
        wmPtr->maxAspect.y);
      Tcl_SetResult(interp, buf, TCL_VOLATILE);
  }
  return TCL_OK;
    }
    if (*Tcl_GetString(objv[3]) == '\0') {
  wmPtr->sizeHintsFlags &= ~PAspect;
    } else {
  if ((Tcl_GetIntFromObj(interp, objv[3], &numer1) != TCL_OK)
    || (Tcl_GetIntFromObj(interp, objv[4], &denom1) != TCL_OK)
    || (Tcl_GetIntFromObj(interp, objv[5], &numer2) != TCL_OK)
    || (Tcl_GetIntFromObj(interp, objv[6], &denom2) != TCL_OK)) {
      return TCL_ERROR;
  }
  if ((numer1 <= 0) || (denom1 <= 0) || (numer2 <= 0) ||
    (denom2 <= 0)) {
      Tcl_SetResult(interp, "aspect number can't be <= 0",
        TCL_STATIC);
      return TCL_ERROR;
  }
  wmPtr->minAspect.x = numer1;
  wmPtr->minAspect.y = denom1;
  wmPtr->maxAspect.x = numer2;
  wmPtr->maxAspect.y = denom2;
  wmPtr->sizeHintsFlags |= PAspect;
    }
    WmUpdateGeom(wmPtr, winPtr);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmAttributesCmd --
 *
 *  This procedure is invoked to process the "wm attributes" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmAttributesCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    LONG style, exStyle, styleBit, *stylePtr;
    char *string;
    int i, boolean, length;

    if ((objc < 3) || ((objc > 5) && ((objc%2) == 0))) {
        configArgs:
  Tcl_WrongNumArgs(interp, 2, objv,
    "window"
    " ?-alpha ?double??"
    " ?-disabled ?bool??"
    " ?-toolwindow ?bool??"
    " ?-topmost ?bool??");
  return TCL_ERROR;
    }
    exStyle = wmPtr->exStyleConfig;
    style   = wmPtr->styleConfig;
    if (objc == 3) {
  Tcl_Obj *objPtr = Tcl_NewObj();
  Tcl_ListObjAppendElement(NULL, objPtr,
    Tcl_NewStringObj("-alpha", -1));
  Tcl_ListObjAppendElement(NULL, objPtr, Tcl_NewDoubleObj(wmPtr->alpha));
  Tcl_ListObjAppendElement(NULL, objPtr,
    Tcl_NewStringObj("-disabled", -1));
  Tcl_ListObjAppendElement(NULL, objPtr,
    Tcl_NewBooleanObj((style & WS_DISABLED)));
  Tcl_ListObjAppendElement(NULL, objPtr,
    Tcl_NewStringObj("-toolwindow", -1));
  Tcl_ListObjAppendElement(NULL, objPtr,
    Tcl_NewBooleanObj((exStyle & WS_EX_TOOLWINDOW)));
  Tcl_ListObjAppendElement(NULL, objPtr,
    Tcl_NewStringObj("-topmost", -1));
  Tcl_ListObjAppendElement(NULL, objPtr,
    Tcl_NewBooleanObj((exStyle & WS_EX_TOPMOST)));
  Tcl_SetObjResult(interp, objPtr);
  return TCL_OK;
    }
    for (i = 3; i < objc; i += 2) {
  string = Tcl_GetStringFromObj(objv[i], &length);
  if ((length < 2) || (string[0] != '-')) {
      goto configArgs;
  }
  if (strncmp(string, "-disabled", length) == 0) {
      stylePtr = &style;
      styleBit = WS_DISABLED;
  } else if (strncmp(string, "-alpha", length) == 0) {
      stylePtr = &exStyle;
      styleBit = WS_EX_LAYERED;
  } else if ((length > 3)
       && (strncmp(string, "-toolwindow", length) == 0)) {
      stylePtr = &exStyle;
      styleBit = WS_EX_TOOLWINDOW;
  } else if ((length > 3)
       && (strncmp(string, "-topmost", length) == 0)) {
      stylePtr = &exStyle;
      styleBit = WS_EX_TOPMOST;
      if ((i < objc-1) && (winPtr->flags & TK_EMBEDDED)) {
    Tcl_AppendResult(interp, "can't set topmost flag on ",
      winPtr->pathName, ": it is an embedded window",
      (char *) NULL);
    return TCL_ERROR;
      }
  } else {
      goto configArgs;
  }
  if (styleBit == WS_EX_LAYERED) {
      double dval;

      if (objc == 4) {
    Tcl_SetDoubleObj(Tcl_GetObjResult(interp), wmPtr->alpha);
      } else {
    if ((i < objc-1) &&
      (Tcl_GetDoubleFromObj(interp, objv[i+1], &dval)
        != TCL_OK)) {
        return TCL_ERROR;
    }
    /*
     * The user should give (transparent) 0 .. 1.0 (opaque),
     * but we ignore the setting of this (it will always be 1)
     * in the case that the API is not available.
     */
    if (dval < 0.0) {
        dval = 0;
    } else if (dval > 1.0) {
        dval = 1;
    }
    wmPtr->alpha = dval;
    if (dval < 1.0) {
        *stylePtr |= styleBit;
    } else {
        *stylePtr &= ~styleBit;
    }
    if ((setLayeredWindowAttributesProc != NULL)
      && (wmPtr->wrapper != NULL)) {
        /*
         * Set the window directly regardless of UpdateWrapper.
         * The user supplies a double from [0..1], but Windows
         * wants an int (transparent) 0..255 (opaque), so do the
         * translation.  Add the 0.5 to round the value.
         */
        setLayeredWindowAttributesProc((HWND) wmPtr->wrapper,
          (COLORREF) NULL, (BYTE) (wmPtr->alpha * 255 + 0.5),
          LWA_ALPHA);
    }
      }
  } else {
      if ((i < objc-1) &&
        (Tcl_GetBooleanFromObj(interp, objv[i+1], &boolean)
          != TCL_OK)) {
    return TCL_ERROR;
      }
      if (objc == 4) {
    Tcl_SetIntObj(Tcl_GetObjResult(interp),
      ((*stylePtr & styleBit) != 0));
      } else if (boolean) {
    *stylePtr |= styleBit;
      } else {
    *stylePtr &= ~styleBit;
      }
  }
  if ((styleBit == WS_EX_TOPMOST) && (wmPtr->wrapper != NULL)) {
      /*
       * Force the topmost position aspect to ensure that switching
       * between (no)topmost reflects properly when rewrapped.
       */
      SetWindowPos(wmPtr->wrapper,
        ((exStyle & WS_EX_TOPMOST) ?
          HWND_TOPMOST : HWND_NOTOPMOST), 0, 0, 0, 0,
        SWP_NOMOVE|SWP_NOSIZE|SWP_NOACTIVATE|SWP_NOSENDCHANGING
        |SWP_NOOWNERZORDER);
  }
    }
    if (wmPtr->styleConfig != style) {
  /*
   * Currently this means only WS_DISABLED changed, which we can
   * effect with EnableWindow.
   */
  wmPtr->styleConfig = style;
  if ((wmPtr->exStyleConfig == exStyle)
    && !(wmPtr->flags & WM_NEVER_MAPPED)) {
      EnableWindow(wmPtr->wrapper, (style & WS_DISABLED) ? 0 : 1);
  }
    }
    if (wmPtr->exStyleConfig != exStyle) {
  /*
   * UpdateWrapper ensure that all effects are properly handled,
   * such as TOOLWINDOW disappearing from the taskbar.
   */
  wmPtr->exStyleConfig = exStyle;
  if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
      UpdateWrapper(winPtr);
  }
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmClientCmd --
 *
 *  This procedure is invoked to process the "wm client" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmClientCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    char *argv3;
    int length;

    if ((objc != 3) && (objc != 4)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?name?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  if (wmPtr->clientMachine != NULL) {
      Tcl_SetResult(interp, wmPtr->clientMachine, TCL_STATIC);
  }
  return TCL_OK;
    }
    argv3 = Tcl_GetStringFromObj(objv[3], &length);
    if (argv3[0] == 0) {
  if (wmPtr->clientMachine != NULL) {
      ckfree((char *) wmPtr->clientMachine);
      wmPtr->clientMachine = NULL;
      if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
    XDeleteProperty(winPtr->display, winPtr->window,
      Tk_InternAtom((Tk_Window) winPtr,
        "WM_CLIENT_MACHINE"));
      }
  }
  return TCL_OK;
    }
    if (wmPtr->clientMachine != NULL) {
  ckfree((char *) wmPtr->clientMachine);
    }
    wmPtr->clientMachine = (char *)
      ckalloc((unsigned) (length + 1));
    strcpy(wmPtr->clientMachine, argv3);
    if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
  XTextProperty textProp;
  if (XStringListToTextProperty(&wmPtr->clientMachine, 1, &textProp)
    != 0) {
      XSetWMClientMachine(winPtr->display, winPtr->window,
        &textProp);
      XFree((char *) textProp.value);
  }
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmColormapwindowsCmd --
 *
 *  This procedure is invoked to process the "wm colormapwindows"
 *  Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmColormapwindowsCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    TkWindow **cmapList;
    TkWindow *winPtr2;
    int i, windowObjc, gotToplevel;
    Tcl_Obj **windowObjv;

    if ((objc != 3) && (objc != 4)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?windowList?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  Tk_MakeWindowExist((Tk_Window) winPtr);
  for (i = 0; i < wmPtr->cmapCount; i++) {
      if ((i == (wmPtr->cmapCount-1))
        && (wmPtr->flags & WM_ADDED_TOPLEVEL_COLORMAP)) {
    break;
      }
      Tcl_AppendElement(interp, wmPtr->cmapList[i]->pathName);
  }
  return TCL_OK;
    }
    if (Tcl_ListObjGetElements(interp, objv[3], &windowObjc, &windowObjv)
      != TCL_OK) {
  return TCL_ERROR;
    }
    cmapList = (TkWindow **) ckalloc((unsigned)
      ((windowObjc+1)*sizeof(TkWindow*)));
    gotToplevel = 0;
    for (i = 0; i < windowObjc; i++) {
  if (TkGetWindowFromObj(interp, tkwin, windowObjv[i],
    (Tk_Window *) &winPtr2) != TCL_OK)
  {
      ckfree((char *) cmapList);
      return TCL_ERROR;
  }
  if (winPtr2 == winPtr) {
      gotToplevel = 1;
  }
  if (winPtr2->window == None) {
      Tk_MakeWindowExist((Tk_Window) winPtr2);
  }
  cmapList[i] = winPtr2;
    }
    if (!gotToplevel) {
  wmPtr->flags |= WM_ADDED_TOPLEVEL_COLORMAP;
  cmapList[windowObjc] = winPtr;
  windowObjc++;
    } else {
  wmPtr->flags &= ~WM_ADDED_TOPLEVEL_COLORMAP;
    }
    wmPtr->flags |= WM_COLORMAPS_EXPLICIT;
    if (wmPtr->cmapList != NULL) {
  ckfree((char *)wmPtr->cmapList);
    }
    wmPtr->cmapList = cmapList;
    wmPtr->cmapCount = windowObjc;

    /*
     * Now we need to force the updated colormaps to be installed.
     */

    if (wmPtr == winPtr->dispPtr->foregroundWmPtr) {
  InstallColormaps(wmPtr->wrapper, WM_QUERYNEWPALETTE, 1);
    } else {
  InstallColormaps(wmPtr->wrapper, WM_PALETTECHANGED, 0);
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmCommandCmd --
 *
 *  This procedure is invoked to process the "wm command" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmCommandCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    char *argv3;
    int cmdArgc;
    CONST char **cmdArgv;

    if ((objc != 3) && (objc != 4)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?value?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  if (wmPtr->cmdArgv != NULL) {
      Tcl_SetResult(interp,
        Tcl_Merge(wmPtr->cmdArgc, wmPtr->cmdArgv),
        TCL_DYNAMIC);
  }
  return TCL_OK;
    }
    argv3 = Tcl_GetString(objv[3]);
    if (argv3[0] == 0) {
  if (wmPtr->cmdArgv != NULL) {
      ckfree((char *) wmPtr->cmdArgv);
      wmPtr->cmdArgv = NULL;
      if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
    XDeleteProperty(winPtr->display, winPtr->window,
      Tk_InternAtom((Tk_Window) winPtr, "WM_COMMAND"));
      }
  }
  return TCL_OK;
    }
    if (Tcl_SplitList(interp, argv3, &cmdArgc, &cmdArgv) != TCL_OK) {
  return TCL_ERROR;
    }
    if (wmPtr->cmdArgv != NULL) {
  ckfree((char *) wmPtr->cmdArgv);
    }
    wmPtr->cmdArgc = cmdArgc;
    wmPtr->cmdArgv = cmdArgv;
    if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
  XSetCommand(winPtr->display, winPtr->window, cmdArgv, cmdArgc);
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmDeiconifyCmd --
 *
 *  This procedure is invoked to process the "wm deiconify" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmDeiconifyCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;

    if (objc != 3) {
  Tcl_WrongNumArgs(interp, 2, objv, "window");
  return TCL_ERROR;
    }
    if (wmPtr->iconFor != NULL) {
  Tcl_AppendResult(interp, "can't deiconify ", Tcl_GetString(objv[2]),
    ": it is an icon for ", Tk_PathName(wmPtr->iconFor),
    (char *) NULL);
  return TCL_ERROR;
    }
    if (winPtr->flags & TK_EMBEDDED) {
  Tcl_AppendResult(interp, "can't deiconify ", winPtr->pathName,
    ": it is an embedded window", (char *) NULL);
  return TCL_ERROR;
    }

    wmPtr->flags &= ~WM_WITHDRAWN;

    /*
     * If WM_UPDATE_PENDING is true, a pending UpdateGeometryInfo may
     * need to be called first to update a withdrawn toplevel's geometry
     * before it is deiconified by TkpWmSetState.
     * Don't bother if we've never been mapped.
     */
    if ((wmPtr->flags & WM_UPDATE_PENDING) &&
      !(wmPtr->flags & WM_NEVER_MAPPED)) {
  Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
  UpdateGeometryInfo((ClientData) winPtr);
    }

    /*
     * If we were in the ZoomState (maximized), 'wm deiconify'
     * should not cause the window to shrink
     */
    if (wmPtr->hints.initial_state == ZoomState) {
  TkpWmSetState(winPtr, ZoomState);
    } else {
  TkpWmSetState(winPtr, NormalState);
    }

    /*
     * An unmapped window will be mapped at idle time
     * by a call to MapFrame. That calls CreateWrapper
     * which sets the focus and raises the window.
     */
    if (wmPtr->flags & WM_NEVER_MAPPED) {
  return TCL_OK;
    }

    /*
     * Follow Windows-like style here, raising the window to the top.
     */
    TkWmRestackToplevel(winPtr, Above, NULL);
    if (!(Tk_Attributes((Tk_Window) winPtr)->override_redirect)) {
  TkSetFocusWin(winPtr, 1);
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmFocusmodelCmd --
 *
 *  This procedure is invoked to process the "wm focusmodel" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmFocusmodelCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    static CONST char *optionStrings[] = {
  "active", "passive", (char *) NULL };
    enum options {
  OPT_ACTIVE, OPT_PASSIVE };
    int index;

    if ((objc != 3) && (objc != 4)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?active|passive?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  Tcl_SetResult(interp, (wmPtr->hints.input ? "passive" : "active"),
    TCL_STATIC);
  return TCL_OK;
    }

    if (Tcl_GetIndexFromObj(interp, objv[3], optionStrings, "argument", 0,
      &index) != TCL_OK) {
  return TCL_ERROR;
    }
    if (index == OPT_ACTIVE) {
  wmPtr->hints.input = False;
    } else { /* OPT_PASSIVE */
  wmPtr->hints.input = True;
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmFrameCmd --
 *
 *  This procedure is invoked to process the "wm frame" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmFrameCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    HWND hwnd;
    char buf[TCL_INTEGER_SPACE];

    if (objc != 3) {
  Tcl_WrongNumArgs(interp, 2, objv, "window");
  return TCL_ERROR;
    }
    if (Tk_WindowId((Tk_Window) winPtr) == None) {
  Tk_MakeWindowExist((Tk_Window) winPtr);
    }
    hwnd = wmPtr->wrapper;
    if (hwnd == NULL) {
  hwnd = Tk_GetHWND(Tk_WindowId((Tk_Window) winPtr));
    }
    sprintf(buf, "0x%x", (unsigned int) hwnd);
    Tcl_SetResult(interp, buf, TCL_VOLATILE);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmGeometryCmd --
 *
 *  This procedure is invoked to process the "wm geometry" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmGeometryCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    char xSign, ySign;
    int width, height;
    char *argv3;

    if ((objc != 3) && (objc != 4)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?newGeometry?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  char buf[16 + TCL_INTEGER_SPACE * 4];

  xSign = (wmPtr->flags & WM_NEGATIVE_X) ? '-' : '+';
  ySign = (wmPtr->flags & WM_NEGATIVE_Y) ? '-' : '+';
  if (wmPtr->gridWin != NULL) {
      width = wmPtr->reqGridWidth + (winPtr->changes.width
        - winPtr->reqWidth)/wmPtr->widthInc;
      height = wmPtr->reqGridHeight + (winPtr->changes.height
        - winPtr->reqHeight)/wmPtr->heightInc;
  } else {
      width = winPtr->changes.width;
      height = winPtr->changes.height;
  }
  sprintf(buf, "%dx%d%c%d%c%d", width, height, xSign, wmPtr->x,
    ySign, wmPtr->y);
  Tcl_SetResult(interp, buf, TCL_VOLATILE);
  return TCL_OK;
    }
    argv3 = Tcl_GetString(objv[3]);
    if (*argv3 == '\0') {
  wmPtr->width = -1;
  wmPtr->height = -1;
  WmUpdateGeom(wmPtr, winPtr);
  return TCL_OK;
    }
    return ParseGeometry(interp, argv3, winPtr);
}

/*
 *----------------------------------------------------------------------
 *
 * WmGridCmd --
 *
 *  This procedure is invoked to process the "wm grid" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmGridCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    int reqWidth, reqHeight, widthInc, heightInc;

    if ((objc != 3) && (objc != 7)) {
  Tcl_WrongNumArgs(interp, 2, objv,
    "window ?baseWidth baseHeight widthInc heightInc?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  if (wmPtr->sizeHintsFlags & PBaseSize) {
      char buf[TCL_INTEGER_SPACE * 4];

      sprintf(buf, "%d %d %d %d", wmPtr->reqGridWidth,
        wmPtr->reqGridHeight, wmPtr->widthInc,
        wmPtr->heightInc);
      Tcl_SetResult(interp, buf, TCL_VOLATILE);
  }
  return TCL_OK;
    }
    if (*Tcl_GetString(objv[3]) == '\0') {
  /*
   * Turn off gridding and reset the width and height
   * to make sense as ungridded numbers.
   */

  wmPtr->sizeHintsFlags &= ~(PBaseSize|PResizeInc);
  if (wmPtr->width != -1) {
      wmPtr->width = winPtr->reqWidth + (wmPtr->width
        - wmPtr->reqGridWidth)*wmPtr->widthInc;
      wmPtr->height = winPtr->reqHeight + (wmPtr->height
        - wmPtr->reqGridHeight)*wmPtr->heightInc;
  }
  wmPtr->widthInc = 1;
  wmPtr->heightInc = 1;
    } else {
  if ((Tcl_GetIntFromObj(interp, objv[3], &reqWidth) != TCL_OK)
    || (Tcl_GetIntFromObj(interp, objv[4], &reqHeight) != TCL_OK)
    || (Tcl_GetIntFromObj(interp, objv[5], &widthInc) != TCL_OK)
    || (Tcl_GetIntFromObj(interp, objv[6], &heightInc) != TCL_OK)) {
      return TCL_ERROR;
  }
  if (reqWidth < 0) {
      Tcl_SetResult(interp, "baseWidth can't be < 0", TCL_STATIC);
      return TCL_ERROR;
  }
  if (reqHeight < 0) {
      Tcl_SetResult(interp, "baseHeight can't be < 0", TCL_STATIC);
      return TCL_ERROR;
  }
  if (widthInc <= 0) {
      Tcl_SetResult(interp, "widthInc can't be <= 0", TCL_STATIC);
      return TCL_ERROR;
  }
  if (heightInc <= 0) {
      Tcl_SetResult(interp, "heightInc can't be <= 0", TCL_STATIC);
      return TCL_ERROR;
  }
  Tk_SetGrid((Tk_Window) winPtr, reqWidth, reqHeight, widthInc,
    heightInc);
    }
    WmUpdateGeom(wmPtr, winPtr);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmGroupCmd --
 *
 *  This procedure is invoked to process the "wm group" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmGroupCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    Tk_Window tkwin2;
    char *argv3;
    int length;

    if ((objc != 3) && (objc != 4)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?pathName?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  if (wmPtr->hints.flags & WindowGroupHint) {
      Tcl_SetResult(interp, wmPtr->leaderName, TCL_STATIC);
  }
  return TCL_OK;
    }
    argv3 = Tcl_GetStringFromObj(objv[3], &length);
    if (*argv3 == '\0') {
  wmPtr->hints.flags &= ~WindowGroupHint;
  if (wmPtr->leaderName != NULL) {
      ckfree(wmPtr->leaderName);
  }
  wmPtr->leaderName = NULL;
    } else {
  if (TkGetWindowFromObj(interp, tkwin, objv[3], &tkwin2) != TCL_OK) {
      return TCL_ERROR;
  }
  Tk_MakeWindowExist(tkwin2);
  if (wmPtr->leaderName != NULL) {
      ckfree(wmPtr->leaderName);
  }
  wmPtr->hints.window_group = Tk_WindowId(tkwin2);
  wmPtr->hints.flags |= WindowGroupHint;
  wmPtr->leaderName = ckalloc((unsigned) (length + 1));
  strcpy(wmPtr->leaderName, argv3);
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmIconbitmapCmd --
 *
 *  This procedure is invoked to process the "wm iconbitmap" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmIconbitmapCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    TkWindow *useWinPtr = winPtr; /* window to apply to (NULL if -default) */
    char *string;

    if ((objc < 3) || (objc > 5)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?-default? ?image?");
  return TCL_ERROR;
    } else if (objc == 5) {
  /* If we have 5 arguments, we must have a '-default' flag */
  char *argv3 = Tcl_GetString(objv[3]);
  if (strcmp(argv3, "-default")) {
      Tcl_AppendResult(interp, "illegal option \"",
        argv3, "\" must be \"-default\"",
        (char *) NULL);
      return TCL_ERROR;
  }
  useWinPtr = NULL;
    } else if (objc == 3) {
  /* No arguments were given */
  if (wmPtr->hints.flags & IconPixmapHint) {
      Tcl_SetResult(interp, (char *)
        Tk_NameOfBitmap(winPtr->display, wmPtr->hints.icon_pixmap),
        TCL_STATIC);
  }
  return TCL_OK;
    }

    string = Tcl_GetString(objv[objc-1]);
    if (*string == '\0') {
  if (wmPtr->hints.icon_pixmap != None) {
      Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_pixmap);
      wmPtr->hints.icon_pixmap = None;
  }
  wmPtr->hints.flags &= ~IconPixmapHint;
  if (WinSetIcon(interp, NULL, (Tk_Window) useWinPtr) != TCL_OK) {
      return TCL_ERROR;
  }
    } else {
  /*
   * In the future this block of code will use Tk's 'image'
   * functionality to allow all supported image formats.
   * However, this will require a change to the way icons are
   * handled.  We will need to add icon<->image conversions
   * routines.
   *
   * Until that happens we simply try to find an icon in the
   * given argument, and if that fails, we use the older
   * bitmap code.  We do things this way round (icon then
   * bitmap), because the bitmap code actually seems to have
   * no visible effect, so we want to give the icon code the
   * first try at doing something.
   */

  /*
   * Either return NULL, or return a valid titlebaricon with its
   * ref count already incremented.
   */
  WinIconPtr titlebaricon = ReadIconFromFile(interp, objv[objc-1]);
  if (titlebaricon != NULL) {
      /*
       * Try to set the icon for the window.  If it is a '-default'
       * icon, we must pass in NULL
       */
      if (WinSetIcon(interp, titlebaricon, (Tk_Window) useWinPtr)
        != TCL_OK) {
    /* We didn't use the titlebaricon after all */
    DecrIconRefCount(titlebaricon);
    titlebaricon = NULL;
      }
  }
  if (titlebaricon == NULL) {
      /*
       * We didn't manage to handle the argument as a valid
       * icon.  Try as a bitmap.  First we must clear the
       * error message which was placed in the interpreter
       */
      Pixmap pixmap;
      Tcl_ResetResult(interp);
      pixmap = Tk_GetBitmap(interp, (Tk_Window) winPtr, string);
      if (pixmap == None) {
    return TCL_ERROR;
      }
      wmPtr->hints.icon_pixmap = pixmap;
      wmPtr->hints.flags |= IconPixmapHint;
      titlebaricon = GetIconFromPixmap(Tk_Display(winPtr), pixmap);
      if (titlebaricon != NULL) {
    if (WinSetIcon(interp, titlebaricon, (Tk_Window) useWinPtr)
      != TCL_OK) {
        /* We didn't use the titlebaricon after all */
        DecrIconRefCount(titlebaricon);
        titlebaricon = NULL;
    }
      }
  }
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmIconifyCmd --
 *
 *  This procedure is invoked to process the "wm iconify" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmIconifyCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    if (objc != 3) {
  Tcl_WrongNumArgs(interp, 2, objv, "window");
  return TCL_ERROR;
    }
    if (Tk_Attributes((Tk_Window) winPtr)->override_redirect) {
  Tcl_AppendResult(interp, "can't iconify \"", winPtr->pathName,
    "\": override-redirect flag is set", (char *) NULL);
  return TCL_ERROR;
    }
    if (wmPtr->masterPtr != NULL) {
  Tcl_AppendResult(interp, "can't iconify \"", winPtr->pathName,
    "\": it is a transient", (char *) NULL);
  return TCL_ERROR;
    }
    if (wmPtr->iconFor != NULL) {
  Tcl_AppendResult(interp, "can't iconify ", winPtr->pathName,
    ": it is an icon for ", Tk_PathName(wmPtr->iconFor),
    (char *) NULL);
  return TCL_ERROR;
    }
    if (winPtr->flags & TK_EMBEDDED) {
  Tcl_AppendResult(interp, "can't iconify ", winPtr->pathName,
    ": it is an embedded window", (char *) NULL);
  return TCL_ERROR;
    }
    TkpWmSetState(winPtr, IconicState);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmIconmaskCmd --
 *
 *  This procedure is invoked to process the "wm iconmask" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmIconmaskCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    Pixmap pixmap;
    char *argv3;

    if ((objc != 3) && (objc != 4)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?bitmap?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  if (wmPtr->hints.flags & IconMaskHint) {
      Tcl_SetResult(interp, (char *)
        Tk_NameOfBitmap(winPtr->display, wmPtr->hints.icon_mask),
        TCL_STATIC);
  }
  return TCL_OK;
    }
    argv3 = Tcl_GetString(objv[3]);
    if (*argv3 == '\0') {
  if (wmPtr->hints.icon_mask != None) {
      Tk_FreeBitmap(winPtr->display, wmPtr->hints.icon_mask);
  }
  wmPtr->hints.flags &= ~IconMaskHint;
    } else {
  pixmap = Tk_GetBitmap(interp, tkwin, argv3);
  if (pixmap == None) {
      return TCL_ERROR;
  }
  wmPtr->hints.icon_mask = pixmap;
  wmPtr->hints.flags |= IconMaskHint;
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmIconnameCmd --
 *
 *  This procedure is invoked to process the "wm iconname" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmIconnameCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    char *argv3;
    int length;

    if (objc > 4) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?newName?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  Tcl_SetResult(interp,
    ((wmPtr->iconName != NULL) ? wmPtr->iconName : ""),
    TCL_STATIC);
  return TCL_OK;
    } else {
  if (wmPtr->iconName != NULL) {
      ckfree((char *) wmPtr->iconName);
  }
  argv3 = Tcl_GetStringFromObj(objv[3], &length);
  wmPtr->iconName = ckalloc((unsigned) (length + 1));
  strcpy(wmPtr->iconName, argv3);
  if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
      XSetIconName(winPtr->display, winPtr->window, wmPtr->iconName);
  }
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmIconphotoCmd --
 *
 *  This procedure is invoked to process the "wm iconphoto"
 *  Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmIconphotoCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    TkWindow *useWinPtr = winPtr; /* window to apply to (NULL if -default) */
    Tk_PhotoHandle photo;
    Tk_PhotoImageBlock block;
    int i, size, width, height, startObj = 3;
    BlockOfIconImagesPtr lpIR;
    WinIconPtr titlebaricon = NULL;
    HICON hIcon;

    if (objc < 4) {
  Tcl_WrongNumArgs(interp, 2, objv,
    "window ?-default? image1 ?image2 ...?");
  return TCL_ERROR;
    }
    /*
     * Iterate over all images to validate their existence.
     */
    if (strcmp(Tcl_GetString(objv[3]), "-default") == 0) {
  useWinPtr = NULL;
  startObj = 4;
  if (objc == 4) {
      Tcl_WrongNumArgs(interp, 2, objv,
        "window ?-default? image1 ?image2 ...?");
      return TCL_ERROR;
  }
    }
    for (i = startObj; i < objc; i++) {
  photo = Tk_FindPhoto(interp, Tcl_GetString(objv[i]));
  if (photo == NULL) {
      Tcl_AppendResult(interp, "can't use \"", Tcl_GetString(objv[i]),
        "\" as iconphoto: not a photo image", (char *) NULL);
      return TCL_ERROR;
  }
    }
    /* We have calculated the size of the data. Try to allocate the needed
     * memory space. */
    size = sizeof(BlockOfIconImages)
  + (sizeof(ICONIMAGE) * (objc - (startObj+1)));
    lpIR = (BlockOfIconImagesPtr) Tcl_AttemptAlloc(size);
    if (lpIR == NULL) {
  return TCL_ERROR;
    }
    ZeroMemory(lpIR, size);

    lpIR->nNumImages = objc - startObj;
    for (i = startObj; i < objc; i++) {
  photo = Tk_FindPhoto(interp, Tcl_GetString(objv[i]));
  Tk_PhotoGetSize(photo, &width, &height);
  Tk_PhotoGetImage(photo, &block);

  /*
   * Encode the image data into an HICON.
   */
  hIcon = CreateIcon(Tk_GetHINSTANCE(), width, height, 1, 32,
    NULL, (BYTE *) block.pixelPtr);
  if (hIcon == NULL) {
      /* XXX should free up created icons */
      Tcl_Free((char *) lpIR);
      Tcl_AppendResult(interp, "failed to create icon for \"",
        Tcl_GetString(objv[i]), "\"", (char *) NULL);
      return TCL_ERROR;
  }
  lpIR->IconImages[i-startObj].Width  = width;
  lpIR->IconImages[i-startObj].Height = height;
  lpIR->IconImages[i-startObj].Colors = 4;
  lpIR->IconImages[i-startObj].hIcon  = hIcon;
    }
    titlebaricon = (WinIconPtr) ckalloc(sizeof(WinIconInstance));
    titlebaricon->iconBlock = lpIR;
    titlebaricon->refCount = 1;
    if (WinSetIcon(interp, titlebaricon, (Tk_Window) useWinPtr) != TCL_OK) {
  /* We didn't use the titlebaricon after all */
  DecrIconRefCount(titlebaricon);
  return TCL_ERROR;
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmIconpositionCmd --
 *
 *  This procedure is invoked to process the "wm iconposition"
 *  Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmIconpositionCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    int x, y;

    if ((objc != 3) && (objc != 5)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?x y?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  if (wmPtr->hints.flags & IconPositionHint) {
      char buf[TCL_INTEGER_SPACE * 2];

      sprintf(buf, "%d %d", wmPtr->hints.icon_x,
        wmPtr->hints.icon_y);
      Tcl_SetResult(interp, buf, TCL_VOLATILE);
  }
  return TCL_OK;
    }
    if (*Tcl_GetString(objv[3]) == '\0') {
  wmPtr->hints.flags &= ~IconPositionHint;
    } else {
  if ((Tcl_GetIntFromObj(interp, objv[3], &x) != TCL_OK)
    || (Tcl_GetIntFromObj(interp, objv[4], &y) != TCL_OK)){
      return TCL_ERROR;
  }
  wmPtr->hints.icon_x = x;
  wmPtr->hints.icon_y = y;
  wmPtr->hints.flags |= IconPositionHint;
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmIconwindowCmd --
 *
 *  This procedure is invoked to process the "wm iconwindow" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmIconwindowCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    Tk_Window tkwin2;
    WmInfo *wmPtr2;
    XSetWindowAttributes atts;

    if ((objc != 3) && (objc != 4)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?pathName?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  if (wmPtr->icon != NULL) {
      Tcl_SetResult(interp, Tk_PathName(wmPtr->icon), TCL_STATIC);
  }
  return TCL_OK;
    }
    if (*Tcl_GetString(objv[3]) == '\0') {
  wmPtr->hints.flags &= ~IconWindowHint;
  if (wmPtr->icon != NULL) {
      /*
       * Let the window use button events again, then remove
       * it as icon window.
       */

      atts.event_mask = Tk_Attributes(wmPtr->icon)->event_mask
        | ButtonPressMask;
      Tk_ChangeWindowAttributes(wmPtr->icon, CWEventMask, &atts);
      wmPtr2 = ((TkWindow *) wmPtr->icon)->wmInfoPtr;
      wmPtr2->iconFor = NULL;
      wmPtr2->hints.initial_state = WithdrawnState;
  }
  wmPtr->icon = NULL;
    } else {
  if (TkGetWindowFromObj(interp, tkwin, objv[3], &tkwin2) != TCL_OK) {
      return TCL_ERROR;
  }
  if (!Tk_IsTopLevel(tkwin2)) {
      Tcl_AppendResult(interp, "can't use ", Tcl_GetString(objv[3]),
        " as icon window: not at top level", (char *) NULL);
      return TCL_ERROR;
  }
  wmPtr2 = ((TkWindow *) tkwin2)->wmInfoPtr;
  if (wmPtr2->iconFor != NULL) {
      Tcl_AppendResult(interp, Tcl_GetString(objv[3]),
        " is already an icon for ",
        Tk_PathName(wmPtr2->iconFor), (char *) NULL);
      return TCL_ERROR;
  }
  if (wmPtr->icon != NULL) {
      WmInfo *wmPtr3 = ((TkWindow *) wmPtr->icon)->wmInfoPtr;
      wmPtr3->iconFor = NULL;

      /*
       * Let the window use button events again.
       */

      atts.event_mask = Tk_Attributes(wmPtr->icon)->event_mask
        | ButtonPressMask;
      Tk_ChangeWindowAttributes(wmPtr->icon, CWEventMask, &atts);
  }

  /*
   * Disable button events in the icon window:  some window
   * managers (like olvwm) want to get the events themselves,
   * but X only allows one application at a time to receive
   * button events for a window.
   */

  atts.event_mask = Tk_Attributes(tkwin2)->event_mask
    & ~ButtonPressMask;
  Tk_ChangeWindowAttributes(tkwin2, CWEventMask, &atts);
  Tk_MakeWindowExist(tkwin2);
  wmPtr->hints.icon_window = Tk_WindowId(tkwin2);
  wmPtr->hints.flags |= IconWindowHint;
  wmPtr->icon = tkwin2;
  wmPtr2->iconFor = (Tk_Window) winPtr;
  if (!(wmPtr2->flags & WM_NEVER_MAPPED)) {
      wmPtr2->flags |= WM_WITHDRAWN;
      TkpWmSetState(((TkWindow *) tkwin2), WithdrawnState);
  }
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmMaxsizeCmd --
 *
 *  This procedure is invoked to process the "wm maxsize" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmMaxsizeCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    int width, height;

    if ((objc != 3) && (objc != 5)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?width height?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  char buf[TCL_INTEGER_SPACE * 2];

  GetMaxSize(wmPtr, &width, &height);
  sprintf(buf, "%d %d", width, height);
  Tcl_SetResult(interp, buf, TCL_VOLATILE);
  return TCL_OK;
    }
    if ((Tcl_GetIntFromObj(interp, objv[3], &width) != TCL_OK)
      || (Tcl_GetIntFromObj(interp, objv[4], &height) != TCL_OK)) {
  return TCL_ERROR;
    }
    wmPtr->maxWidth = width;
    wmPtr->maxHeight = height;
    WmUpdateGeom(wmPtr, winPtr);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmMinsizeCmd --
 *
 *  This procedure is invoked to process the "wm minsize" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmMinsizeCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    int width, height;

    if ((objc != 3) && (objc != 5)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?width height?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  char buf[TCL_INTEGER_SPACE * 2];

  GetMinSize(wmPtr, &width, &height);
  sprintf(buf, "%d %d", width, height);
  Tcl_SetResult(interp, buf, TCL_VOLATILE);
  return TCL_OK;
    }
    if ((Tcl_GetIntFromObj(interp, objv[3], &width) != TCL_OK)
      || (Tcl_GetIntFromObj(interp, objv[4], &height) != TCL_OK)) {
  return TCL_ERROR;
    }
    wmPtr->minWidth = width;
    wmPtr->minHeight = height;
    WmUpdateGeom(wmPtr, winPtr);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmOverrideredirectCmd --
 *
 *  This procedure is invoked to process the "wm overrideredirect"
 *  Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmOverrideredirectCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    int boolean, curValue;
    XSetWindowAttributes atts;

    if ((objc != 3) && (objc != 4)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?boolean?");
  return TCL_ERROR;
    }
    curValue = Tk_Attributes((Tk_Window) winPtr)->override_redirect;
    if (objc == 3) {
  Tcl_SetBooleanObj(Tcl_GetObjResult(interp), curValue);
  return TCL_OK;
    }
    if (Tcl_GetBooleanFromObj(interp, objv[3], &boolean) != TCL_OK) {
  return TCL_ERROR;
    }
    if (curValue != boolean) {
  /*
   * Only do this if we are really changing value, because it
   * causes some funky stuff to occur
   */
  atts.override_redirect = (boolean) ? True : False;
  Tk_ChangeWindowAttributes((Tk_Window) winPtr, CWOverrideRedirect,
    &atts);
  if (!(wmPtr->flags & (WM_NEVER_MAPPED)
    && !(winPtr->flags & TK_EMBEDDED))) {
      UpdateWrapper(winPtr);
  }
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmPositionfromCmd --
 *
 *  This procedure is invoked to process the "wm positionfrom"
 *  Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmPositionfromCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    static CONST char *optionStrings[] = {
  "program", "user", (char *) NULL };
    enum options {
  OPT_PROGRAM, OPT_USER };
    int index;

    if ((objc != 3) && (objc != 4)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?user/program?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  if (wmPtr->sizeHintsFlags & USPosition) {
      Tcl_SetResult(interp, "user", TCL_STATIC);
  } else if (wmPtr->sizeHintsFlags & PPosition) {
      Tcl_SetResult(interp, "program", TCL_STATIC);
  }
  return TCL_OK;
    }
    if (*Tcl_GetString(objv[3]) == '\0') {
  wmPtr->sizeHintsFlags &= ~(USPosition|PPosition);
    } else {
  if (Tcl_GetIndexFromObj(interp, objv[3], optionStrings, "argument", 0,
    &index) != TCL_OK) {
      return TCL_ERROR;
  }
  if (index == OPT_USER) {
      wmPtr->sizeHintsFlags &= ~PPosition;
      wmPtr->sizeHintsFlags |= USPosition;
  } else {
      wmPtr->sizeHintsFlags &= ~USPosition;
      wmPtr->sizeHintsFlags |= PPosition;
  }
    }
    WmUpdateGeom(wmPtr, winPtr);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmProtocolCmd --
 *
 *  This procedure is invoked to process the "wm protocol" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmProtocolCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    register ProtocolHandler *protPtr, *prevPtr;
    Atom protocol;
    char *cmd;
    int cmdLength;

    if ((objc < 3) || (objc > 5)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?name? ?command?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  /*
   * Return a list of all defined protocols for the window.
   */
  for (protPtr = wmPtr->protPtr; protPtr != NULL;
       protPtr = protPtr->nextPtr) {
      Tcl_AppendElement(interp,
        Tk_GetAtomName((Tk_Window) winPtr, protPtr->protocol));
  }
  return TCL_OK;
    }
    protocol = Tk_InternAtom((Tk_Window) winPtr, Tcl_GetString(objv[3]));
    if (objc == 4) {
  /*
   * Return the command to handle a given protocol.
   */
  for (protPtr = wmPtr->protPtr; protPtr != NULL;
       protPtr = protPtr->nextPtr) {
      if (protPtr->protocol == protocol) {
    Tcl_SetResult(interp, protPtr->command, TCL_STATIC);
    return TCL_OK;
      }
  }
  return TCL_OK;
    }

    /*
     * Delete any current protocol handler, then create a new
     * one with the specified command, unless the command is
     * empty.
     */

    for (protPtr = wmPtr->protPtr, prevPtr = NULL; protPtr != NULL;
   prevPtr = protPtr, protPtr = protPtr->nextPtr) {
  if (protPtr->protocol == protocol) {
      if (prevPtr == NULL) {
    wmPtr->protPtr = protPtr->nextPtr;
      } else {
    prevPtr->nextPtr = protPtr->nextPtr;
      }
      Tcl_EventuallyFree((ClientData) protPtr, TCL_DYNAMIC);
      break;
  }
    }
    cmd = Tcl_GetStringFromObj(objv[4], &cmdLength);
    if (cmdLength > 0) {
  protPtr = (ProtocolHandler *) ckalloc(HANDLER_SIZE(cmdLength));
  protPtr->protocol = protocol;
  protPtr->nextPtr = wmPtr->protPtr;
  wmPtr->protPtr = protPtr;
  protPtr->interp = interp;
  strcpy(protPtr->command, cmd);
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmResizableCmd --
 *
 *  This procedure is invoked to process the "wm resizable" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmResizableCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    int width, height;

    if ((objc != 3) && (objc != 5)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?width height?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  char buf[TCL_INTEGER_SPACE * 2];

  sprintf(buf, "%d %d",
    (wmPtr->flags  & WM_WIDTH_NOT_RESIZABLE) ? 0 : 1,
    (wmPtr->flags  & WM_HEIGHT_NOT_RESIZABLE) ? 0 : 1);
  Tcl_SetResult(interp, buf, TCL_VOLATILE);
  return TCL_OK;
    }
    if ((Tcl_GetBooleanFromObj(interp, objv[3], &width) != TCL_OK)
      || (Tcl_GetBooleanFromObj(interp, objv[4], &height) != TCL_OK)) {
  return TCL_ERROR;
    }
    if (width) {
  wmPtr->flags &= ~WM_WIDTH_NOT_RESIZABLE;
    } else {
  wmPtr->flags |= WM_WIDTH_NOT_RESIZABLE;
    }
    if (height) {
  wmPtr->flags &= ~WM_HEIGHT_NOT_RESIZABLE;
    } else {
  wmPtr->flags |= WM_HEIGHT_NOT_RESIZABLE;
    }
    if (!((wmPtr->flags & WM_NEVER_MAPPED)
      && !(winPtr->flags & TK_EMBEDDED))) {
  UpdateWrapper(winPtr);
    }
    WmUpdateGeom(wmPtr, winPtr);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmSizefromCmd --
 *
 *  This procedure is invoked to process the "wm sizefrom" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmSizefromCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    static CONST char *optionStrings[] = {
  "program", "user", (char *) NULL };
    enum options {
  OPT_PROGRAM, OPT_USER };
    int index;

    if ((objc != 3) && (objc != 4)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?user|program?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  if (wmPtr->sizeHintsFlags & USSize) {
      Tcl_SetResult(interp, "user", TCL_STATIC);
  } else if (wmPtr->sizeHintsFlags & PSize) {
      Tcl_SetResult(interp, "program", TCL_STATIC);
  }
  return TCL_OK;
    }

    if (*Tcl_GetString(objv[3]) == '\0') {
  wmPtr->sizeHintsFlags &= ~(USSize|PSize);
    } else {
  if (Tcl_GetIndexFromObj(interp, objv[3], optionStrings, "argument", 0,
    &index) != TCL_OK) {
      return TCL_ERROR;
  }
  if (index == OPT_USER) {
      wmPtr->sizeHintsFlags &= ~PSize;
      wmPtr->sizeHintsFlags |= USSize;
  } else { /* OPT_PROGRAM */
      wmPtr->sizeHintsFlags &= ~USSize;
      wmPtr->sizeHintsFlags |= PSize;
  }
    }
    WmUpdateGeom(wmPtr, winPtr);
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmStackorderCmd --
 *
 *  This procedure is invoked to process the "wm stackorder" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmStackorderCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    TkWindow **windows, **window_ptr;
    static CONST char *optionStrings[] = {
  "isabove", "isbelow", (char *) NULL };
    enum options {
  OPT_ISABOVE, OPT_ISBELOW };
    int index;

    if ((objc != 3) && (objc != 5)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?isabove|isbelow window?");
  return TCL_ERROR;
    }

    if (objc == 3) {
  windows = TkWmStackorderToplevel(winPtr);
  if (windows == NULL) {
      Tcl_Panic("TkWmStackorderToplevel failed");
  } else {
      for (window_ptr = windows; *window_ptr ; window_ptr++) {
    Tcl_AppendElement(interp, (*window_ptr)->pathName);
      }
      ckfree((char *) windows);
      return TCL_OK;
  }
    } else {
  TkWindow *winPtr2;
  int index1=-1, index2=-1, result;

  if (TkGetWindowFromObj(interp, tkwin, objv[4], (Tk_Window *) &winPtr2)
    != TCL_OK) {
      return TCL_ERROR;
  }

  if (!Tk_IsTopLevel(winPtr2)) {
      Tcl_AppendResult(interp, "window \"", winPtr2->pathName,
        "\" isn't a top-level window", (char *) NULL);
      return TCL_ERROR;
  }

  if (!Tk_IsMapped(winPtr)) {
      Tcl_AppendResult(interp, "window \"", winPtr->pathName,
        "\" isn't mapped", (char *) NULL);
      return TCL_ERROR;
  }

  if (!Tk_IsMapped(winPtr2)) {
      Tcl_AppendResult(interp, "window \"", winPtr2->pathName,
        "\" isn't mapped", (char *) NULL);
      return TCL_ERROR;
  }

  /*
   * Lookup stacking order of all toplevels that are children
   * of "." and find the position of winPtr and winPtr2
   * in the stacking order.
   */

  windows = TkWmStackorderToplevel(winPtr->mainPtr->winPtr);

  if (windows == NULL) {
      Tcl_AppendResult(interp, "TkWmStackorderToplevel failed",
                    (char *) NULL);
      return TCL_ERROR;
  } else {
      for (window_ptr = windows; *window_ptr ; window_ptr++) {
    if (*window_ptr == winPtr)
        index1 = (window_ptr - windows);
    if (*window_ptr == winPtr2)
        index2 = (window_ptr - windows);
      }
      if (index1 == -1)
    Tcl_Panic("winPtr window not found");
      if (index2 == -1)
    Tcl_Panic("winPtr2 window not found");

      ckfree((char *) windows);
  }

  if (Tcl_GetIndexFromObj(interp, objv[3], optionStrings, "argument", 0,
    &index) != TCL_OK) {
      return TCL_ERROR;
  }
  if (index == OPT_ISABOVE) {
      result = index1 > index2;
  } else { /* OPT_ISBELOW */
      result = index1 < index2;
  }
  Tcl_SetIntObj(Tcl_GetObjResult(interp), result);
  return TCL_OK;
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmStateCmd --
 *
 *  This procedure is invoked to process the "wm state" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmStateCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    static CONST char *optionStrings[] = {
  "normal", "iconic", "withdrawn", "zoomed", (char *) NULL };
    enum options {
  OPT_NORMAL, OPT_ICONIC, OPT_WITHDRAWN, OPT_ZOOMED };
    int index;

    if ((objc < 3) || (objc > 4)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?state?");
  return TCL_ERROR;
    }
    if (objc == 4) {
  if (wmPtr->iconFor != NULL) {
      Tcl_AppendResult(interp, "can't change state of ",
        Tcl_GetString(objv[2]),
        ": it is an icon for ", Tk_PathName(wmPtr->iconFor),
        (char *) NULL);
      return TCL_ERROR;
  }
  if (winPtr->flags & TK_EMBEDDED) {
      Tcl_AppendResult(interp, "can't change state of ",
        winPtr->pathName, ": it is an embedded window",
        (char *) NULL);
      return TCL_ERROR;
  }

  if (Tcl_GetIndexFromObj(interp, objv[3], optionStrings, "argument", 0,
    &index) != TCL_OK) {
      return TCL_ERROR;
  }

  if (index == OPT_NORMAL) {
      wmPtr->flags &= ~WM_WITHDRAWN;
      TkpWmSetState(winPtr, NormalState);
      /*
       * This varies from 'wm deiconify' because it does not
       * force the window to be raised and receive focus
       */
  } else if (index == OPT_ICONIC) {
      if (Tk_Attributes((Tk_Window) winPtr)->override_redirect) {
    Tcl_AppendResult(interp, "can't iconify \"",
      winPtr->pathName,
      "\": override-redirect flag is set",
      (char *) NULL);
    return TCL_ERROR;
      }
      if (wmPtr->masterPtr != NULL) {
    Tcl_AppendResult(interp, "can't iconify \"",
      winPtr->pathName,
      "\": it is a transient", (char *) NULL);
    return TCL_ERROR;
      }
      TkpWmSetState(winPtr, IconicState);
  } else if (index == OPT_WITHDRAWN) {
      wmPtr->flags |= WM_WITHDRAWN;
      TkpWmSetState(winPtr, WithdrawnState);
  } else if (index == OPT_ZOOMED) {
      TkpWmSetState(winPtr, ZoomState);
  } else {
      Tcl_Panic("wm state not matched");
  }
    } else {
  if (wmPtr->iconFor != NULL) {
      Tcl_SetResult(interp, "icon", TCL_STATIC);
  } else {
      switch (wmPtr->hints.initial_state) {
        case NormalState:
    Tcl_SetResult(interp, "normal", TCL_STATIC);
    break;
        case IconicState:
    Tcl_SetResult(interp, "iconic", TCL_STATIC);
    break;
        case WithdrawnState:
    Tcl_SetResult(interp, "withdrawn", TCL_STATIC);
    break;
        case ZoomState:
    Tcl_SetResult(interp, "zoomed", TCL_STATIC);
    break;
      }
  }
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmTitleCmd --
 *
 *  This procedure is invoked to process the "wm title" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmTitleCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    char *argv3;
    int length;

    if (objc > 4) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?newTitle?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  Tcl_SetResult(interp, (char *)
    ((wmPtr->title != NULL) ? wmPtr->title : winPtr->nameUid),
    TCL_STATIC);
  return TCL_OK;
    } else {
  if (wmPtr->title != NULL) {
      ckfree((char *) wmPtr->title);
  }
  argv3 = Tcl_GetStringFromObj(objv[3], &length);
  wmPtr->title = ckalloc((unsigned) (length + 1));
  strcpy(wmPtr->title, argv3);

  if (!(wmPtr->flags & WM_NEVER_MAPPED) && wmPtr->wrapper != NULL) {
      Tcl_DString titleString;
      Tcl_WinUtfToTChar(wmPtr->title, -1, &titleString);
      (*tkWinProcs->setWindowText)(wmPtr->wrapper,
        (LPCTSTR) Tcl_DStringValue(&titleString));
      Tcl_DStringFree(&titleString);
  }
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmTransientCmd --
 *
 *  This procedure is invoked to process the "wm transient" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmTransientCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    TkWindow *masterPtr = wmPtr->masterPtr;
    WmInfo *wmPtr2;

    if ((objc != 3) && (objc != 4)) {
  Tcl_WrongNumArgs(interp, 2, objv, "window ?master?");
  return TCL_ERROR;
    }
    if (objc == 3) {
  if (masterPtr != NULL) {
      Tcl_SetResult(interp, Tk_PathName(masterPtr), TCL_STATIC);
  }
  return TCL_OK;
    }
    if (Tcl_GetString(objv[3])[0] == '\0') {
  if (masterPtr != NULL) {
      /*
       * If we had a master, tell them that we aren't tied
       * to them anymore
       */

      masterPtr->wmInfoPtr->numTransients--;
      Tk_DeleteEventHandler((Tk_Window) masterPtr,
        VisibilityChangeMask|StructureNotifyMask,
        WmWaitVisibilityOrMapProc, (ClientData) winPtr);
  }

  wmPtr->masterPtr = NULL;
    } else {
  if (TkGetWindowFromObj(interp, tkwin, objv[3],
    (Tk_Window *) &masterPtr) != TCL_OK) {
      return TCL_ERROR;
  }
  while (!Tk_TopWinHierarchy(masterPtr)) {
      /*
       * Ensure that the master window is actually a Tk toplevel.
       */

      masterPtr = masterPtr->parentPtr;
  }
  Tk_MakeWindowExist((Tk_Window) masterPtr);

  if (wmPtr->iconFor != NULL) {
      Tcl_AppendResult(interp, "can't make \"",
        Tcl_GetString(objv[2]),
        "\" a transient: it is an icon for ",
        Tk_PathName(wmPtr->iconFor),
        (char *) NULL);
      return TCL_ERROR;
  }

  wmPtr2 = masterPtr->wmInfoPtr;

  if (wmPtr2->iconFor != NULL) {
      Tcl_AppendResult(interp, "can't make \"",
        Tcl_GetString(objv[3]),
        "\" a master: it is an icon for ",
        Tk_PathName(wmPtr2->iconFor),
        (char *) NULL);
      return TCL_ERROR;
  }

  if (masterPtr == winPtr) {
      Tcl_AppendResult(interp, "can't make \"", Tk_PathName(winPtr),
        "\" its own master",
        (char *) NULL);
      return TCL_ERROR;
  } else if (masterPtr != wmPtr->masterPtr) {
      /*
       * Remove old master map/unmap binding before setting
       * the new master. The event handler will ensure that
       * transient states reflect the state of the master.
       */

      if (wmPtr->masterPtr != NULL) {
    wmPtr->masterPtr->wmInfoPtr->numTransients--;
    Tk_DeleteEventHandler((Tk_Window) wmPtr->masterPtr,
      VisibilityChangeMask|StructureNotifyMask,
      WmWaitVisibilityOrMapProc, (ClientData) winPtr);
      }

      masterPtr->wmInfoPtr->numTransients++;
      Tk_CreateEventHandler((Tk_Window) masterPtr,
        VisibilityChangeMask|StructureNotifyMask,
        WmWaitVisibilityOrMapProc, (ClientData) winPtr);

      wmPtr->masterPtr = masterPtr;
  }
    }
    if (!((wmPtr->flags & WM_NEVER_MAPPED)
      && !(winPtr->flags & TK_EMBEDDED))) {
  if (wmPtr->masterPtr != NULL &&
    !Tk_IsMapped(wmPtr->masterPtr)) {
      TkpWmSetState(winPtr, WithdrawnState);
  } else {
      UpdateWrapper(winPtr);
  }
    }
    return TCL_OK;
}

/*
 *----------------------------------------------------------------------
 *
 * WmWithdrawCmd --
 *
 *  This procedure is invoked to process the "wm withdraw" Tcl command.
 *  See the user documentation for details on what it does.
 *
 * Results:
 *  A standard Tcl result.
 *
 * Side effects:
 *  See the user documentation.
 *
 *----------------------------------------------------------------------
 */

static int
WmWithdrawCmd(tkwin, winPtr, interp, objc, objv)
    Tk_Window tkwin;    /* Main window of the application. */
    TkWindow *winPtr;           /* Toplevel to work with */
    Tcl_Interp *interp;    /* Current interpreter. */
    int objc;      /* Number of arguments. */
    Tcl_Obj *CONST objv[];  /* Argument objects. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;

    if (objc != 3) {
  Tcl_WrongNumArgs(interp, 2, objv, "window");
  return TCL_ERROR;
    }
    if (wmPtr->iconFor != NULL) {
  Tcl_AppendResult(interp, "can't withdraw ", Tcl_GetString(objv[2]),
    ": it is an icon for ", Tk_PathName(wmPtr->iconFor),
    (char *) NULL);
  return TCL_ERROR;
    }
    wmPtr->flags |= WM_WITHDRAWN;
    TkpWmSetState(winPtr, WithdrawnState);
    return TCL_OK;
}

/*
 * Invoked by those wm subcommands that affect geometry.
 * Schedules a geometry update.
 */
static void
WmUpdateGeom(wmPtr, winPtr)
    WmInfo *wmPtr;
    TkWindow *winPtr;
{
    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
  Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
  wmPtr->flags |= WM_UPDATE_PENDING;
    }
}

  /*ARGSUSED*/
static void
WmWaitVisibilityOrMapProc(clientData, eventPtr)
    ClientData clientData;  /* Pointer to window. */
    XEvent *eventPtr;    /* Information about event. */
{
    TkWindow *winPtr = (TkWindow *) clientData;
    TkWindow *masterPtr = winPtr->wmInfoPtr->masterPtr;

    if (masterPtr == NULL)
  return;

    if (eventPtr->type == MapNotify) {
  if (!(winPtr->wmInfoPtr->flags & WM_WITHDRAWN))
      TkpWmSetState(winPtr, NormalState);
    } else if (eventPtr->type == UnmapNotify) {
  TkpWmSetState(winPtr, WithdrawnState);
    }

    if (eventPtr->type == VisibilityNotify) {
  int state = masterPtr->wmInfoPtr->hints.initial_state;

  if ((state == NormalState) || (state == ZoomState)) {
      state = winPtr->wmInfoPtr->hints.initial_state;
      if ((state == NormalState) || (state == ZoomState)) {
    UpdateWrapper(winPtr);
      }
  }
    }
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_SetGrid --
 *
 *  This procedure is invoked by a widget when it wishes to set a grid
 *  coordinate system that controls the size of a top-level window.
 *  It provides a C interface equivalent to the "wm grid" command and
 *  is usually asscoiated with the -setgrid option.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Grid-related information will be passed to the window manager, so
 *  that the top-level window associated with tkwin will resize on
 *  even grid units.  If some other window already controls gridding
 *  for the top-level window then this procedure call has no effect.
 *
 *----------------------------------------------------------------------
 */

void
Tk_SetGrid(tkwin, reqWidth, reqHeight, widthInc, heightInc)
    Tk_Window tkwin;    /* Token for window.  New window mgr info
         * will be posted for the top-level window
         * associated with this window. */
    int reqWidth;    /* Width (in grid units) corresponding to
         * the requested geometry for tkwin. */
    int reqHeight;    /* Height (in grid units) corresponding to
         * the requested geometry for tkwin. */
    int widthInc, heightInc;  /* Pixel increments corresponding to a
         * change of one grid unit. */
{
    TkWindow *winPtr = (TkWindow *) tkwin;
    register WmInfo *wmPtr;

    /*
     * Ensure widthInc and heightInc are greater than 0
     */
    if (widthInc <= 0) {
  widthInc = 1;
    }
    if (heightInc <= 0) {
  heightInc = 1;
    }


    /*
     * Find the top-level window for tkwin, plus the window manager
     * information.
     */

    while (!(winPtr->flags & TK_TOP_HIERARCHY)) {
  winPtr = winPtr->parentPtr;
    }
    wmPtr = winPtr->wmInfoPtr;
    if (wmPtr == NULL) {
  return;
    }

    if ((wmPtr->gridWin != NULL) && (wmPtr->gridWin != tkwin)) {
  return;
    }

    if ((wmPtr->reqGridWidth == reqWidth)
      && (wmPtr->reqGridHeight == reqHeight)
      && (wmPtr->widthInc == widthInc)
      && (wmPtr->heightInc == heightInc)
      && ((wmPtr->sizeHintsFlags & (PBaseSize|PResizeInc))
        == (PBaseSize|PResizeInc))) {
  return;
    }

    /*
     * If gridding was previously off, then forget about any window
     * size requests made by the user or via "wm geometry":  these are
     * in pixel units and there's no easy way to translate them to
     * grid units since the new requested size of the top-level window in
     * pixels may not yet have been registered yet (it may filter up
     * the hierarchy in DoWhenIdle handlers).  However, if the window
     * has never been mapped yet then just leave the window size alone:
     * assume that it is intended to be in grid units but just happened
     * to have been specified before this procedure was called.
     */

    if ((wmPtr->gridWin == NULL) && !(wmPtr->flags & WM_NEVER_MAPPED)) {
  wmPtr->width = -1;
  wmPtr->height = -1;
    }

    /*
     * Set the new gridding information, and start the process of passing
     * all of this information to the window manager.
     */

    wmPtr->gridWin = tkwin;
    wmPtr->reqGridWidth = reqWidth;
    wmPtr->reqGridHeight = reqHeight;
    wmPtr->widthInc = widthInc;
    wmPtr->heightInc = heightInc;
    wmPtr->sizeHintsFlags |= PBaseSize|PResizeInc;
    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
  Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
  wmPtr->flags |= WM_UPDATE_PENDING;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_UnsetGrid --
 *
 *  This procedure cancels the effect of a previous call
 *  to Tk_SetGrid.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  If tkwin currently controls gridding for its top-level window,
 *  gridding is cancelled for that top-level window;  if some other
 *  window controls gridding then this procedure has no effect.
 *
 *----------------------------------------------------------------------
 */

void
Tk_UnsetGrid(tkwin)
    Tk_Window tkwin;    /* Token for window that is currently
         * controlling gridding. */
{
    TkWindow *winPtr = (TkWindow *) tkwin;
    register WmInfo *wmPtr;

    /*
     * Find the top-level window for tkwin, plus the window manager
     * information.
     */

    while (!(winPtr->flags & TK_TOP_HIERARCHY)) {
  winPtr = winPtr->parentPtr;
    }
    wmPtr = winPtr->wmInfoPtr;
    if (wmPtr == NULL) {
  return;
    }

    if (tkwin != wmPtr->gridWin) {
  return;
    }

    wmPtr->gridWin = NULL;
    wmPtr->sizeHintsFlags &= ~(PBaseSize|PResizeInc);
    if (wmPtr->width != -1) {
  wmPtr->width = winPtr->reqWidth + (wmPtr->width
    - wmPtr->reqGridWidth)*wmPtr->widthInc;
  wmPtr->height = winPtr->reqHeight + (wmPtr->height
    - wmPtr->reqGridHeight)*wmPtr->heightInc;
    }
    wmPtr->widthInc = 1;
    wmPtr->heightInc = 1;

    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
  Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
  wmPtr->flags |= WM_UPDATE_PENDING;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TopLevelEventProc --
 *
 *  This procedure is invoked when a top-level (or other externally-
 *  managed window) is restructured in any way.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Tk's internal data structures for the window get modified to
 *  reflect the structural change.
 *
 *----------------------------------------------------------------------
 */

static void
TopLevelEventProc(clientData, eventPtr)
    ClientData clientData;    /* Window for which event occurred. */
    XEvent *eventPtr;      /* Event that just happened. */
{
    register TkWindow *winPtr = (TkWindow *) clientData;

    if (eventPtr->type == DestroyNotify) {
  Tk_ErrorHandler handler;

  if (!(winPtr->flags & TK_ALREADY_DEAD)) {
      /*
       * A top-level window was deleted externally (e.g., by the window
       * manager).  This is probably not a good thing, but cleanup as
       * best we can.  The error handler is needed because
       * Tk_DestroyWindow will try to destroy the window, but of course
       * it's already gone.
       */

      handler = Tk_CreateErrorHandler(winPtr->display, -1, -1, -1,
        (Tk_ErrorProc *) NULL, (ClientData) NULL);
      Tk_DestroyWindow((Tk_Window) winPtr);
      Tk_DeleteErrorHandler(handler);
  }
    }
    else if (eventPtr->type == ConfigureNotify) {
  WmInfo *wmPtr;
  wmPtr = winPtr->wmInfoPtr;

  if (winPtr->flags & TK_EMBEDDED) {
      Tk_Window tkwin = (Tk_Window)winPtr;
      SendMessage(wmPtr->wrapper, TK_GEOMETRYREQ, Tk_ReqWidth(tkwin),
          Tk_ReqHeight(tkwin));
  }
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TopLevelReqProc --
 *
 *  This procedure is invoked by the geometry manager whenever
 *  the requested size for a top-level window is changed.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Arrange for the window to be resized to satisfy the request
 *  (this happens as a when-idle action).
 *
 *----------------------------------------------------------------------
 */

  /* ARGSUSED */
static void
TopLevelReqProc(dummy, tkwin)
    ClientData dummy;      /* Not used. */
    Tk_Window tkwin;      /* Information about window. */
{
    TkWindow *winPtr = (TkWindow *) tkwin;
    WmInfo *wmPtr;

    wmPtr = winPtr->wmInfoPtr;
    if ((winPtr->flags & TK_EMBEDDED) && (wmPtr->wrapper != NULL)) {
  SendMessage(wmPtr->wrapper, TK_GEOMETRYREQ, Tk_ReqWidth(tkwin),
      Tk_ReqHeight(tkwin));
    }
    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
  Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
  wmPtr->flags |= WM_UPDATE_PENDING;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * UpdateGeometryInfo --
 *
 *  This procedure is invoked when a top-level window is first
 *  mapped, and also as a when-idle procedure, to bring the
 *  geometry and/or position of a top-level window back into
 *  line with what has been requested by the user and/or widgets.
 *  This procedure doesn't return until the system has
 *  responded to the geometry change.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  The window's size and location may change, unless the WM prevents
 *  that from happening.
 *
 *----------------------------------------------------------------------
 */

static void
UpdateGeometryInfo(clientData)
    ClientData clientData;    /* Pointer to the window's record. */
{
    int x, y;      /* Position of border on desktop. */
    int width, height;    /* Size of client area. */
    int min, max;
    RECT rect;
    register TkWindow *winPtr = (TkWindow *) clientData;
    register WmInfo *wmPtr = winPtr->wmInfoPtr;

    wmPtr->flags &= ~WM_UPDATE_PENDING;

    /*
     * If the window is minimized or maximized, we should not update
     * our geometry since it will end up with the wrong values.
     * ConfigureToplevel will reschedule UpdateGeometryInfo when the
     * state of the window changes.
     */

    if (wmPtr->wrapper && (IsIconic(wmPtr->wrapper) ||
      IsZoomed(wmPtr->wrapper))) {
  return;
    }

    /*
     * Compute the border size for the current window style.  This
     * size will include the resize handles, the title bar and the
     * menubar.  Note that this size will not be correct if the
     * menubar spans multiple lines.  The height will be off by a
     * multiple of the menubar height.  It really only measures the
     * minimum size of the border.
     */

    rect.left = rect.right = rect.top = rect.bottom = 0;
    AdjustWindowRectEx(&rect, wmPtr->style, wmPtr->hMenu != NULL,
      wmPtr->exStyle);
    wmPtr->borderWidth = rect.right - rect.left;
    wmPtr->borderHeight = rect.bottom - rect.top;

    /*
     * Compute the new size for the top-level window.  See the
     * user documentation for details on this, but the size
     * requested depends on (a) the size requested internally
     * by the window's widgets, (b) the size requested by the
     * user in a "wm geometry" command or via wm-based interactive
     * resizing (if any), (c) whether or not the window is
     * gridded, and (d) the current min or max size for
     * the toplevel. Don't permit sizes <= 0 because this upsets
     * the X server.
     */

    if (wmPtr->width == -1) {
  width = winPtr->reqWidth;
    } else if (wmPtr->gridWin != NULL) {
  width = winPtr->reqWidth
    + (wmPtr->width - wmPtr->reqGridWidth)*wmPtr->widthInc;
    } else {
  width = wmPtr->width;
    }
    if (width <= 0) {
  width = 1;
    }
    /*
     * Account for window max/min width
     */
    if (wmPtr->gridWin != NULL) {
  min = winPtr->reqWidth
    + (wmPtr->minWidth - wmPtr->reqGridWidth)*wmPtr->widthInc;
  if (wmPtr->maxWidth > 0) {
      max = winPtr->reqWidth
    + (wmPtr->maxWidth - wmPtr->reqGridWidth)*wmPtr->widthInc;
  } else {
      max = 0;
  }
    } else {
  min = wmPtr->minWidth;
  max = wmPtr->maxWidth;
    }
    if (width < min) {
  width = min;
    } else if ((max > 0) && (width > max)) {
  width = max;
    }

    if (wmPtr->height == -1) {
  height = winPtr->reqHeight;
    } else if (wmPtr->gridWin != NULL) {
  height = winPtr->reqHeight
    + (wmPtr->height - wmPtr->reqGridHeight)*wmPtr->heightInc;
    } else {
  height = wmPtr->height;
    }
    if (height <= 0) {
  height = 1;
    }
    /*
     * Account for window max/min height
     */
    if (wmPtr->gridWin != NULL) {
  min = winPtr->reqHeight
    + (wmPtr->minHeight - wmPtr->reqGridHeight)*wmPtr->heightInc;
  if (wmPtr->maxHeight > 0) {
      max = winPtr->reqHeight
    + (wmPtr->maxHeight - wmPtr->reqGridHeight)*wmPtr->heightInc;
  } else {
      max = 0;
  }
    } else {
  min = wmPtr->minHeight;
  max = wmPtr->maxHeight;
    }
    if (height < min) {
  height = min;
    } else if ((max > 0) && (height > max)) {
  height = max;
    }

    /*
     * Compute the new position for the upper-left pixel of the window's
     * decorative frame.  This is tricky, because we need to include the
     * border widths supplied by a reparented parent in this calculation,
     * but can't use the parent's current overall size since that may
     * change as a result of this code.
     */

    if (wmPtr->flags & WM_NEGATIVE_X) {
  x = DisplayWidth(winPtr->display, winPtr->screenNum) - wmPtr->x
    - (width + wmPtr->borderWidth);
    } else {
  x =  wmPtr->x;
    }
    if (wmPtr->flags & WM_NEGATIVE_Y) {
  y = DisplayHeight(winPtr->display, winPtr->screenNum) - wmPtr->y
    - (height + wmPtr->borderHeight);
    } else {
  y =  wmPtr->y;
    }

    /*
     * If this window is embedded and the container is also in this
     * process, we don't need to do anything special about the
     * geometry, except to make sure that the desired size is known
     * by the container.  Also, zero out any position information,
     * since embedded windows are not allowed to move.
     */

    if (winPtr->flags & TK_BOTH_HALVES) {
  TkWindow *childPtr = TkpGetOtherWindow(winPtr);

  wmPtr->x = wmPtr->y = 0;
  wmPtr->flags &= ~(WM_NEGATIVE_X|WM_NEGATIVE_Y);
  if (childPtr != NULL) {
      Tk_GeometryRequest((Tk_Window) childPtr, width, height);
  }
  return;
    }

    /*
     * Reconfigure the window if it isn't already configured correctly.  Base
     * the size check on what we *asked for* last time, not what we got.
     * Return immediately if there have been no changes in the requested
     * geometry of the toplevel.
     */
    /* TODO: need to add flag for possible menu size change */

    if (!((wmPtr->flags & WM_MOVE_PENDING)
      || (width != wmPtr->configWidth)
      || (height != wmPtr->configHeight))) {
  return;
    }
    wmPtr->flags &= ~WM_MOVE_PENDING;

    wmPtr->configWidth = width;
    wmPtr->configHeight = height;

    /*
     * Don't bother moving the window if we are in the process of
     * creating it.  Just update the geometry info based on what
     * we asked for.
     */

    if (wmPtr->flags & WM_CREATE_PENDING) {
  winPtr->changes.x = x;
  winPtr->changes.y = y;
  winPtr->changes.width = width;
  winPtr->changes.height = height;
  return;
    }

    wmPtr->flags |= WM_SYNC_PENDING;
    if (winPtr->flags & TK_EMBEDDED) {
  /*
   * The wrapper window is in a different process, so we need
   * to send it a geometry request.  This protocol assumes that
   * the other process understands this Tk message, otherwise
   * our requested geometry will be ignored.
   */

  SendMessage(wmPtr->wrapper, TK_GEOMETRYREQ, width, height);
    } else {
  int reqHeight, reqWidth;
  RECT windowRect;
  int menuInc = GetSystemMetrics(SM_CYMENU);
  int newHeight;

  /*
   * We have to keep resizing the window until we get the
   * requested height in the client area. If the client
   * area has zero height, then the window rect is too
   * small by definition. Try increasing the border height
   * and try again. Once we have a positive size, then
   * we can adjust the height exactly. If the window
   * rect comes back smaller than we requested, we have
   * hit the maximum constraints that Windows imposes.
   * Once we find a positive client size, the next size
   * is the one we try no matter what.
   */

  reqHeight = height + wmPtr->borderHeight;
  reqWidth = width + wmPtr->borderWidth;

  while (1) {
      MoveWindow(wmPtr->wrapper, x, y, reqWidth, reqHeight, TRUE);
      GetWindowRect(wmPtr->wrapper, &windowRect);
      newHeight = windowRect.bottom - windowRect.top;

      /*
       * If the request wasn't satisfied, we have hit an external
       * constraint and must stop.
       */

      if (newHeight < reqHeight) {
    break;
      }

      /*
       * Now check the size of the client area against our ideal.
       */

      GetClientRect(wmPtr->wrapper, &windowRect);
      newHeight = windowRect.bottom - windowRect.top;

      if (newHeight == height) {
    /*
     * We're done.
     */
    break;
      } else if (newHeight > height) {
    /*
     * One last resize to get rid of the extra space.
     */
    menuInc = newHeight - height;
    reqHeight -= menuInc;
    if (wmPtr->flags & WM_NEGATIVE_Y) {
        y += menuInc;
    }
    MoveWindow(wmPtr->wrapper, x, y, reqWidth, reqHeight, TRUE);
    break;
      }

      /*
       * We didn't get enough space to satisfy our requested
       * height, so the menu must have wrapped.  Increase the
       * size of the window by one menu height and move the
       * window if it is positioned relative to the lower right
       * corner of the screen.
       */

      reqHeight += menuInc;
      if (wmPtr->flags & WM_NEGATIVE_Y) {
    y -= menuInc;
      }
  }
  if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
      DrawMenuBar(wmPtr->wrapper);
  }
    }
    wmPtr->flags &= ~WM_SYNC_PENDING;
}

/*
 *--------------------------------------------------------------
 *
 * ParseGeometry --
 *
 *  This procedure parses a geometry string and updates
 *  information used to control the geometry of a top-level
 *  window.
 *
 * Results:
 *  A standard Tcl return value, plus an error message in
 *  the interp's result if an error occurs.
 *
 * Side effects:
 *  The size and/or location of winPtr may change.
 *
 *--------------------------------------------------------------
 */

static int
ParseGeometry(interp, string, winPtr)
    Tcl_Interp *interp;    /* Used for error reporting. */
    char *string;    /* String containing new geometry.  Has the
         * standard form "=wxh+x+y". */
    TkWindow *winPtr;    /* Pointer to top-level window whose
         * geometry is to be changed. */
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;
    int x, y, width, height, flags;
    char *end;
    register char *p = string;

    /*
     * The leading "=" is optional.
     */

    if (*p == '=') {
  p++;
    }

    /*
     * Parse the width and height, if they are present.  Don't
     * actually update any of the fields of wmPtr until we've
     * successfully parsed the entire geometry string.
     */

    width = wmPtr->width;
    height = wmPtr->height;
    x = wmPtr->x;
    y = wmPtr->y;
    flags = wmPtr->flags;
    if (isdigit(UCHAR(*p))) {
  width = strtoul(p, &end, 10);
  p = end;
  if (*p != 'x') {
      goto error;
  }
  p++;
  if (!isdigit(UCHAR(*p))) {
      goto error;
  }
  height = strtoul(p, &end, 10);
  p = end;
    }

    /*
     * Parse the X and Y coordinates, if they are present.
     */

    if (*p != '\0') {
  flags &= ~(WM_NEGATIVE_X | WM_NEGATIVE_Y);
  if (*p == '-') {
      flags |= WM_NEGATIVE_X;
  } else if (*p != '+') {
      goto error;
  }
  p++;
  if (!isdigit(UCHAR(*p)) && (*p != '-')) {
      goto error;
  }
  x = strtol(p, &end, 10);
  p = end;
  if (*p == '-') {
      flags |= WM_NEGATIVE_Y;
  } else if (*p != '+') {
      goto error;
  }
  p++;
  if (!isdigit(UCHAR(*p)) && (*p != '-')) {
      goto error;
  }
  y = strtol(p, &end, 10);
  if (*end != '\0') {
      goto error;
  }

  /*
   * Assume that the geometry information came from the user,
   * unless an explicit source has been specified.  Otherwise
   * most window managers assume that the size hints were
   * program-specified and they ignore them.
   */

  if ((wmPtr->sizeHintsFlags & (USPosition|PPosition)) == 0) {
      wmPtr->sizeHintsFlags |= USPosition;
  }
    }

    /*
     * Everything was parsed OK.  Update the fields of *wmPtr and
     * arrange for the appropriate information to be percolated out
     * to the window manager at the next idle moment.
     */

    wmPtr->width = width;
    wmPtr->height = height;
    wmPtr->x = x;
    wmPtr->y = y;
    flags |= WM_MOVE_PENDING;
    wmPtr->flags = flags;

    if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
  Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
  wmPtr->flags |= WM_UPDATE_PENDING;
    }
    return TCL_OK;

    error:
    Tcl_AppendResult(interp, "bad geometry specifier \"",
      string, "\"", (char *) NULL);
    return TCL_ERROR;
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_GetRootCoords --
 *
 *  Given a token for a window, this procedure traces through the
 *  window's lineage to find the (virtual) root-window coordinates
 *  corresponding to point (0,0) in the window.
 *
 * Results:
 *  The locations pointed to by xPtr and yPtr are filled in with
 *  the root coordinates of the (0,0) point in tkwin.
 *
 * Side effects:
 *  None.
 *
 *----------------------------------------------------------------------
 */

void
Tk_GetRootCoords(tkwin, xPtr, yPtr)
    Tk_Window tkwin;    /* Token for window. */
    int *xPtr;      /* Where to store x-displacement of (0,0). */
    int *yPtr;      /* Where to store y-displacement of (0,0). */
{
    register TkWindow *winPtr = (TkWindow *) tkwin;

    /*
     * If the window is mapped, let Windows figure out the translation.
     */

    if (winPtr->window != None) {
  HWND hwnd = Tk_GetHWND(winPtr->window);
  POINT point;

  point.x = 0;
  point.y = 0;

  ClientToScreen(hwnd, &point);

  *xPtr = point.x;
  *yPtr = point.y;
    } else {
  *xPtr = 0;
  *yPtr = 0;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_CoordsToWindow --
 *
 *  Given the (virtual) root coordinates of a point, this procedure
 *  returns the token for the top-most window covering that point,
 *  if there exists such a window in this application.
 *
 * Results:
 *  The return result is either a token for the window corresponding
 *  to rootX and rootY, or else NULL to indicate that there is no such
 *  window.
 *
 * Side effects:
 *  None.
 *
 *----------------------------------------------------------------------
 */

Tk_Window
Tk_CoordsToWindow(rootX, rootY, tkwin)
    int rootX, rootY;    /* Coordinates of point in root window.  If
         * a virtual-root window manager is in use,
         * these coordinates refer to the virtual
         * root, not the real root. */
    Tk_Window tkwin;    /* Token for any window in application;
         * used to identify the display. */
{
    POINT pos;
    HWND hwnd;
    TkWindow *winPtr;

    pos.x = rootX;
    pos.y = rootY;
    hwnd = WindowFromPoint(pos);

    winPtr = (TkWindow *) Tk_HWNDToWindow(hwnd);
    if (winPtr && (winPtr->mainPtr == ((TkWindow *) tkwin)->mainPtr)) {
  return (Tk_Window) winPtr;
    }
    return NULL;
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_GetVRootGeometry --
 *
 *  This procedure returns information about the virtual root
 *  window corresponding to a particular Tk window.
 *
 * Results:
 *  The values at xPtr, yPtr, widthPtr, and heightPtr are set
 *  with the offset and dimensions of the root window corresponding
 *  to tkwin.  If tkwin is being managed by a virtual root window
 *  manager these values correspond to the virtual root window being
 *  used for tkwin;  otherwise the offsets will be 0 and the
 *  dimensions will be those of the screen.
 *
 * Side effects:
 *  Vroot window information is refreshed if it is out of date.
 *
 *----------------------------------------------------------------------
 */

void
Tk_GetVRootGeometry(tkwin, xPtr, yPtr, widthPtr, heightPtr)
    Tk_Window tkwin;    /* Window whose virtual root is to be
         * queried. */
    int *xPtr, *yPtr;    /* Store x and y offsets of virtual root
         * here. */
    int *widthPtr, *heightPtr;  /* Store dimensions of virtual root here. */
{
    TkWindow *winPtr = (TkWindow *) tkwin;

    /*
     * XXX: This is not correct for multiple monitors.  There may be many
     * changes required to get this right, and it may effect existing
     * applications that don't consider possible <0 vroot.  See
     * http://msdn.microsoft.com/library/en-us/gdi/monitor_3lrn.asp
     * for more info.
     */
    *xPtr = 0;
    *yPtr = 0;
    *widthPtr = DisplayWidth(winPtr->display, winPtr->screenNum);
    *heightPtr = DisplayHeight(winPtr->display, winPtr->screenNum);
}

/*
 *----------------------------------------------------------------------
 *
 * Tk_MoveToplevelWindow --
 *
 *  This procedure is called instead of Tk_MoveWindow to adjust
 *  the x-y location of a top-level window.  It delays the actual
 *  move to a later time and keeps window-manager information
 *  up-to-date with the move
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  The window is eventually moved so that its upper-left corner
 *  (actually, the upper-left corner of the window's decorative
 *  frame, if there is one) is at (x,y).
 *
 *----------------------------------------------------------------------
 */

void
Tk_MoveToplevelWindow(tkwin, x, y)
    Tk_Window tkwin;    /* Window to move. */
    int x, y;      /* New location for window (within
         * parent). */
{
    TkWindow *winPtr = (TkWindow *) tkwin;
    register WmInfo *wmPtr = winPtr->wmInfoPtr;

    if (!(winPtr->flags & TK_TOP_LEVEL)) {
  Tcl_Panic("Tk_MoveToplevelWindow called with non-toplevel window");
    }
    wmPtr->x = x;
    wmPtr->y = y;
    wmPtr->flags |= WM_MOVE_PENDING;
    wmPtr->flags &= ~(WM_NEGATIVE_X|WM_NEGATIVE_Y);
    if ((wmPtr->sizeHintsFlags & (USPosition|PPosition)) == 0) {
  wmPtr->sizeHintsFlags |= USPosition;
    }

    /*
     * If the window has already been mapped, must bring its geometry
     * up-to-date immediately, otherwise an event might arrive from the
     * server that would overwrite wmPtr->x and wmPtr->y and lose the
     * new position.
     */

    if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
  if (wmPtr->flags & WM_UPDATE_PENDING) {
      Tcl_CancelIdleCall(UpdateGeometryInfo, (ClientData) winPtr);
  }
  UpdateGeometryInfo((ClientData) winPtr);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmProtocolEventProc --
 *
 *  This procedure is called by the Tk_HandleEvent whenever a
 *  ClientMessage event arrives whose type is "WM_PROTOCOLS".
 *  This procedure handles the message from the window manager
 *  in an appropriate fashion.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Depends on what sort of handler, if any, was set up for the
 *  protocol.
 *
 *----------------------------------------------------------------------
 */

void
TkWmProtocolEventProc(winPtr, eventPtr)
    TkWindow *winPtr;    /* Window to which the event was sent. */
    XEvent *eventPtr;    /* X event. */
{
    WmInfo *wmPtr;
    register ProtocolHandler *protPtr;
    Atom protocol;
    int result;
    Tcl_Interp *interp;

    wmPtr = winPtr->wmInfoPtr;
    if (wmPtr == NULL) {
  return;
    }
    protocol = (Atom) eventPtr->xclient.data.l[0];
    for (protPtr = wmPtr->protPtr; protPtr != NULL;
      protPtr = protPtr->nextPtr) {
  if (protocol == protPtr->protocol) {
      /*
       * Cache atom name, as we might destroy the window as a
       * result of the eval.
       */
      CONST char *name = Tk_GetAtomName((Tk_Window) winPtr, protocol);

      Tcl_Preserve((ClientData) protPtr);
            interp = protPtr->interp;
            Tcl_Preserve((ClientData) interp);
      result = Tcl_GlobalEval(interp, protPtr->command);
      if (result != TCL_OK) {
    Tcl_AddErrorInfo(interp, "\n    (command for \"");
    Tcl_AddErrorInfo(interp, name);
    Tcl_AddErrorInfo(interp, "\" window manager protocol)");
    Tcl_BackgroundError(interp);
      }
            Tcl_Release((ClientData) interp);
      Tcl_Release((ClientData) protPtr);
      return;
  }
    }

    /*
     * No handler was present for this protocol.  If this is a
     * WM_DELETE_WINDOW message then just destroy the window.
     */

    if (protocol == Tk_InternAtom((Tk_Window) winPtr, "WM_DELETE_WINDOW")) {
  Tk_DestroyWindow((Tk_Window) winPtr);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmStackorderToplevelEnumProc --
 *
 *  This procedure is invoked once for each HWND Window on the
 *  display as a result of calling EnumWindows from
 *  TkWmStackorderToplevel.
 *
 * Results:
 *  TRUE to request further iteration.
 *
 * Side effects:
 *  Adds entries to the passed array of TkWindows.
 *
 *----------------------------------------------------------------------
 */

BOOL CALLBACK TkWmStackorderToplevelEnumProc(hwnd, lParam)
    HWND hwnd;     /* handle to parent window */
    LPARAM lParam; /* application-defined value */
{
    Tcl_HashEntry *hPtr;
    TkWindow *childWinPtr;

    TkWmStackorderToplevelPair *pair =
        (TkWmStackorderToplevelPair *) lParam;

    /*fprintf(stderr, "Looking up HWND %d\n", hwnd);*/

    hPtr = Tcl_FindHashEntry(pair->table, (char *) hwnd);
    if (hPtr != NULL) {
        childWinPtr = (TkWindow *) Tcl_GetHashValue(hPtr);
        /* Double check that same HWND does not get passed twice */
        if (childWinPtr == NULL) {
            Tcl_Panic("duplicate HWND in TkWmStackorderToplevelEnumProc");
        } else {
            Tcl_SetHashValue(hPtr, NULL);
        }
        /*fprintf(stderr, "Found mapped HWND %d -> %x (%s)\n", hwnd,
    childWinPtr, childWinPtr->pathName);*/
        *(pair->window_ptr)-- = childWinPtr;
    }
    return TRUE;
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmStackorderToplevelWrapperMap --
 *
 *  This procedure will create a table that maps the wrapper
 *  HWND id for a toplevel to the TkWindow structure that is wraps.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Adds entries to the passed hashtable.
 *
 *----------------------------------------------------------------------
 */

static void
TkWmStackorderToplevelWrapperMap(winPtr, display, table)
    TkWindow *winPtr;        /* TkWindow to recurse on */
    Display *display;                          /* X display of parent window */
    Tcl_HashTable *table;    /* Table to maps HWND to TkWindow */
{
    TkWindow *childPtr;
    Tcl_HashEntry *hPtr;
    HWND wrapper;
    int newEntry;

    if (Tk_IsMapped(winPtr) && Tk_IsTopLevel(winPtr) &&
            !Tk_IsEmbedded(winPtr) && (winPtr->display == display)) {
        wrapper = TkWinGetWrapperWindow((Tk_Window) winPtr);

        /*fprintf(stderr, "Mapped HWND %d to %x (%s)\n", wrapper,
    winPtr, winPtr->pathName);*/

        hPtr = Tcl_CreateHashEntry(table,
            (char *) wrapper, &newEntry);
        Tcl_SetHashValue(hPtr, winPtr);
    }

    for (childPtr = winPtr->childList; childPtr != NULL;
            childPtr = childPtr->nextPtr) {
        TkWmStackorderToplevelWrapperMap(childPtr, display, table);
    }
}
/*
 *----------------------------------------------------------------------
 *
 * TkWmStackorderToplevel --
 *
 *  This procedure returns the stack order of toplevel windows.
 *
 * Results:
 *  An array of pointers to tk window objects in stacking order
 *  or else NULL if there was an error.
 *
 * Side effects:
 *  None.
 *
 *----------------------------------------------------------------------
 */

TkWindow **
TkWmStackorderToplevel(parentPtr)
    TkWindow *parentPtr;    /* Parent toplevel window. */
{
    TkWmStackorderToplevelPair pair;
    TkWindow **windows;
    Tcl_HashTable table;
    Tcl_HashEntry *hPtr;
    Tcl_HashSearch search;

    /*
     * Map HWND ids to a TkWindow of the wrapped toplevel.
     */

    Tcl_InitHashTable(&table, TCL_ONE_WORD_KEYS);
    TkWmStackorderToplevelWrapperMap(parentPtr, parentPtr->display, &table);

    windows = (TkWindow **) ckalloc((table.numEntries+1)
        * sizeof(TkWindow *));

    /*
     * Special cases: If zero or one toplevels were mapped
     * there is no need to call EnumWindows.
     */

    switch (table.numEntries) {
    case 0:
        windows[0] = NULL;
        goto done;
    case 1:
        hPtr = Tcl_FirstHashEntry(&table, &search);
        windows[0] = (TkWindow *) Tcl_GetHashValue(hPtr);
        windows[1] = NULL;
        goto done;
    }

    /*
     * We will be inserting into the array starting at the end
     * and working our way to the beginning since EnumWindows
     * returns windows in highest to lowest order.
     */

    pair.table = &table;
    pair.window_ptr = windows + table.numEntries;
    *pair.window_ptr-- = NULL;

    if (EnumWindows((WNDENUMPROC) TkWmStackorderToplevelEnumProc,
      (LPARAM) &pair) == 0) {
        ckfree((char *) windows);
        windows = NULL;
    } else {
        if (pair.window_ptr != (windows-1))
            Tcl_Panic("num matched toplevel windows does not equal num children");
    }

    done:
    Tcl_DeleteHashTable(&table);
    return windows;
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmRestackToplevel --
 *
 *  This procedure restacks a top-level window.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  WinPtr gets restacked  as specified by aboveBelow and otherPtr.
 *  This procedure doesn't return until the restack has taken
 *  effect and the ConfigureNotify event for it has been received.
 *
 *----------------------------------------------------------------------
 */

void
TkWmRestackToplevel(winPtr, aboveBelow, otherPtr)
    TkWindow *winPtr;    /* Window to restack. */
    int aboveBelow;    /* Gives relative position for restacking;
         * must be Above or Below. */
    TkWindow *otherPtr;    /* Window relative to which to restack;
         * if NULL, then winPtr gets restacked
         * above or below *all* siblings. */
{
    HWND hwnd, insertAfter;

    /*
     * Can't set stacking order properly until the window is on the
     * screen (mapping it may give it a reparent window).
     */

    if (winPtr->window == None) {
  Tk_MakeWindowExist((Tk_Window) winPtr);
    }
    if (winPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) {
  TkWmMapWindow(winPtr);
    }
    hwnd = (winPtr->wmInfoPtr->wrapper != NULL)
  ? winPtr->wmInfoPtr->wrapper : Tk_GetHWND(winPtr->window);

    if (otherPtr != NULL) {
  if (otherPtr->window == None) {
      Tk_MakeWindowExist((Tk_Window) otherPtr);
  }
  if (otherPtr->wmInfoPtr->flags & WM_NEVER_MAPPED) {
      TkWmMapWindow(otherPtr);
  }
  insertAfter = (otherPtr->wmInfoPtr->wrapper != NULL)
      ? otherPtr->wmInfoPtr->wrapper : Tk_GetHWND(otherPtr->window);
    } else {
  insertAfter = NULL;
    }

    TkWinSetWindowPos(hwnd, insertAfter, aboveBelow);
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmAddToColormapWindows --
 *
 *  This procedure is called to add a given window to the
 *  WM_COLORMAP_WINDOWS property for its top-level, if it
 *  isn't already there.  It is invoked by the Tk code that
 *  creates a new colormap, in order to make sure that colormap
 *  information is propagated to the window manager by default.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  WinPtr's window gets added to the WM_COLORMAP_WINDOWS
 *  property of its nearest top-level ancestor, unless the
 *  colormaps have been set explicitly with the
 *  "wm colormapwindows" command.
 *
 *----------------------------------------------------------------------
 */

void
TkWmAddToColormapWindows(winPtr)
    TkWindow *winPtr;    /* Window with a non-default colormap.
         * Should not be a top-level window. */
{
    TkWindow *topPtr;
    TkWindow **oldPtr, **newPtr;
    int count, i;

    if (winPtr->window == None) {
  return;
    }

    for (topPtr = winPtr->parentPtr; ; topPtr = topPtr->parentPtr) {
  if (topPtr == NULL) {
      /*
       * Window is being deleted.  Skip the whole operation.
       */

      return;
  }
  if (topPtr->flags & TK_TOP_HIERARCHY) {
      break;
  }
    }
    if (topPtr->wmInfoPtr == NULL) {
  return;
    }

    if (topPtr->wmInfoPtr->flags & WM_COLORMAPS_EXPLICIT) {
  return;
    }

    /*
     * Make sure that the window isn't already in the list.
     */

    count = topPtr->wmInfoPtr->cmapCount;
    oldPtr = topPtr->wmInfoPtr->cmapList;

    for (i = 0; i < count; i++) {
  if (oldPtr[i] == winPtr) {
      return;
  }
    }

    /*
     * Make a new bigger array and use it to reset the property.
     * Automatically add the toplevel itself as the last element
     * of the list.
     */

    newPtr = (TkWindow **) ckalloc((unsigned) ((count+2)*sizeof(TkWindow*)));
    if (count > 0) {
  memcpy(newPtr, oldPtr, count * sizeof(TkWindow*));
    }
    if (count == 0) {
  count++;
    }
    newPtr[count-1] = winPtr;
    newPtr[count] = topPtr;
    if (oldPtr != NULL) {
  ckfree((char *) oldPtr);
    }

    topPtr->wmInfoPtr->cmapList = newPtr;
    topPtr->wmInfoPtr->cmapCount = count+1;

    /*
     * Now we need to force the updated colormaps to be installed.
     */

    if (topPtr->wmInfoPtr == winPtr->dispPtr->foregroundWmPtr) {
  InstallColormaps(topPtr->wmInfoPtr->wrapper, WM_QUERYNEWPALETTE, 1);
    } else {
  InstallColormaps(topPtr->wmInfoPtr->wrapper, WM_PALETTECHANGED, 0);
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkWmRemoveFromColormapWindows --
 *
 *  This procedure is called to remove a given window from the
 *  WM_COLORMAP_WINDOWS property for its top-level.  It is invoked
 *  when windows are deleted.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  WinPtr's window gets removed from the WM_COLORMAP_WINDOWS
 *  property of its nearest top-level ancestor, unless the
 *  top-level itself is being deleted too.
 *
 *----------------------------------------------------------------------
 */

void
TkWmRemoveFromColormapWindows(winPtr)
    TkWindow *winPtr;    /* Window that may be present in
         * WM_COLORMAP_WINDOWS property for its
         * top-level.  Should not be a top-level
         * window. */
{
    TkWindow *topPtr;
    TkWindow **oldPtr;
    int count, i, j;

    for (topPtr = winPtr->parentPtr; ; topPtr = topPtr->parentPtr) {
  if (topPtr == NULL) {
      /*
       * Ancestors have been deleted, so skip the whole operation.
       * Seems like this can't ever happen?
       */

      return;
  }
  if (topPtr->flags & TK_TOP_LEVEL) {
      break;
  }
    }
    if (topPtr->flags & TK_ALREADY_DEAD) {
  /*
   * Top-level is being deleted, so there's no need to cleanup
   * the WM_COLORMAP_WINDOWS property.
   */

  return;
    }

    if (topPtr->wmInfoPtr == NULL) {
  return;
    }

    /*
     * Find the window and slide the following ones down to cover
     * it up.
     */

    count = topPtr->wmInfoPtr->cmapCount;
    oldPtr = topPtr->wmInfoPtr->cmapList;
    for (i = 0; i < count; i++) {
  if (oldPtr[i] == winPtr) {
      for (j = i ; j < count-1; j++) {
    oldPtr[j] = oldPtr[j+1];
      }
      topPtr->wmInfoPtr->cmapCount = count-1;
      break;
  }
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkWinSetMenu--
 *
 *  Associcates a given HMENU to a window.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  The menu will end up being drawn in the window, and the geometry
 *  of the window will have to be changed.
 *
 *----------------------------------------------------------------------
 */

void
TkWinSetMenu(tkwin, hMenu)
    Tk_Window tkwin;    /* the window to put the menu in */
    HMENU hMenu;    /* the menu to set */
{
    TkWindow *winPtr = (TkWindow *) tkwin;
    WmInfo *wmPtr = winPtr->wmInfoPtr;

    wmPtr->hMenu = hMenu;

    if (!(wmPtr->flags & TK_EMBEDDED)) {
  if (!(wmPtr->flags & WM_NEVER_MAPPED)) {
      int syncPending = wmPtr->flags & WM_SYNC_PENDING;

      wmPtr->flags |= WM_SYNC_PENDING;
      SetMenu(wmPtr->wrapper, hMenu);
      if (!syncPending) {
    wmPtr->flags &= ~WM_SYNC_PENDING;
      }
  }
  if (!(wmPtr->flags & (WM_UPDATE_PENDING|WM_NEVER_MAPPED))) {
      Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
      wmPtr->flags |= WM_UPDATE_PENDING|WM_MOVE_PENDING;
  }
    }
}

/*
 *----------------------------------------------------------------------
 *
 * ConfigureTopLevel --
 *
 *  Generate a ConfigureNotify event based on the current position
 *  information.  This procedure is called by TopLevelProc.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Queues a new event.
 *
 *----------------------------------------------------------------------
 */

static void
ConfigureTopLevel(pos)
    WINDOWPOS *pos;
{
    TkWindow *winPtr = GetTopLevel(pos->hwnd);
    WmInfo *wmPtr;
    int state;      /* Current window state. */
    RECT rect;
    WINDOWPLACEMENT windowPos;

    if (winPtr == NULL) {
  return;
    }

    wmPtr = winPtr->wmInfoPtr;

    /*
     * Determine the current window state.
     */

    if (!IsWindowVisible(wmPtr->wrapper)) {
  state = WithdrawnState;
    } else {
  windowPos.length = sizeof(WINDOWPLACEMENT);
  GetWindowPlacement(wmPtr->wrapper, &windowPos);
  switch (windowPos.showCmd) {
      case SW_SHOWMAXIMIZED:
    state = ZoomState;
    break;
      case SW_SHOWMINIMIZED:
    state = IconicState;
    break;
      case SW_SHOWNORMAL:
    state = NormalState;
    break;
  }
    }

    /*
     * If the state of the window just changed, be sure to update the
     * child window information.
     */

    if (wmPtr->hints.initial_state != state) {
  wmPtr->hints.initial_state = state;
  switch (state) {
      case WithdrawnState:
      case IconicState:
    XUnmapWindow(winPtr->display, winPtr->window);
    break;

      case NormalState:
    /*
     * Schedule a geometry update.  Since we ignore geometry
     * requests while in any other state, the geometry info
     * may be stale.
     */

    if (!(wmPtr->flags & WM_UPDATE_PENDING)) {
        Tcl_DoWhenIdle(UpdateGeometryInfo, (ClientData) winPtr);
        wmPtr->flags |= WM_UPDATE_PENDING;
    }
    /* fall through */
      case ZoomState:
    XMapWindow(winPtr->display, winPtr->window);
    pos->flags |= SWP_NOMOVE | SWP_NOSIZE;
    break;
  }
    }

    /*
     * Don't report geometry changes in the Iconic or Withdrawn states.
     */

    if (state == WithdrawnState || state == IconicState) {
  return;
    }


    /*
     * Compute the current geometry of the client area, reshape the
     * Tk window and generate a ConfigureNotify event.
     */

    GetClientRect(wmPtr->wrapper, &rect);
    winPtr->changes.x = pos->x;
    winPtr->changes.y = pos->y;
    winPtr->changes.width = rect.right - rect.left;
    winPtr->changes.height = rect.bottom - rect.top;
    wmPtr->borderHeight = pos->cy - winPtr->changes.height;
    MoveWindow(Tk_GetHWND(winPtr->window), 0, 0,
      winPtr->changes.width, winPtr->changes.height, TRUE);
    GenerateConfigureNotify(winPtr);

    /*
     * Update window manager geometry info if needed.
     */

    if (state == NormalState) {

  /*
   * Update size information from the event.  There are a couple of
   * tricky points here:
   *
   * 1. If the user changed the size externally then set wmPtr->width
   *    and wmPtr->height just as if a "wm geometry" command had been
   *    invoked with the same information.
   * 2. However, if the size is changing in response to a request
   *    coming from us (sync is set), then don't set
   *    wmPtr->width or wmPtr->height (otherwise the window will stop
   *    tracking geometry manager requests).
   */

  if (!(wmPtr->flags & WM_SYNC_PENDING)) {
      if (!(pos->flags & SWP_NOSIZE)) {
    if ((wmPtr->width == -1)
      && (winPtr->changes.width == winPtr->reqWidth)) {
        /*
         * Don't set external width, since the user didn't
         * change it from what the widgets asked for.
         */
    } else {
        if (wmPtr->gridWin != NULL) {
      wmPtr->width = wmPtr->reqGridWidth
          + (winPtr->changes.width - winPtr->reqWidth)
          / wmPtr->widthInc;
      if (wmPtr->width < 0) {
          wmPtr->width = 0;
      }
        } else {
      wmPtr->width = winPtr->changes.width;
        }
    }
    if ((wmPtr->height == -1)
      && (winPtr->changes.height == winPtr->reqHeight)) {
        /*
         * Don't set external height, since the user didn't change
         * it from what the widgets asked for.
         */
    } else {
        if (wmPtr->gridWin != NULL) {
      wmPtr->height = wmPtr->reqGridHeight
          + (winPtr->changes.height - winPtr->reqHeight)
          / wmPtr->heightInc;
      if (wmPtr->height < 0) {
          wmPtr->height = 0;
      }
        } else {
      wmPtr->height = winPtr->changes.height;
        }
    }
    wmPtr->configWidth = winPtr->changes.width;
    wmPtr->configHeight = winPtr->changes.height;
      }
      /*
       * If the user moved the window, we should switch back
       * to normal coordinates.
       */

      if (!(pos->flags & SWP_NOMOVE)) {
    wmPtr->flags &= ~(WM_NEGATIVE_X | WM_NEGATIVE_Y);
      }
  }

  /*
   * Update the wrapper window location information.
   */

  if (wmPtr->flags & WM_NEGATIVE_X) {
      wmPtr->x = DisplayWidth(winPtr->display, winPtr->screenNum)
    - winPtr->changes.x - (winPtr->changes.width
      + wmPtr->borderWidth);
  } else {
      wmPtr->x = winPtr->changes.x;
  }
  if (wmPtr->flags & WM_NEGATIVE_Y) {
      wmPtr->y = DisplayHeight(winPtr->display, winPtr->screenNum)
    - winPtr->changes.y - (winPtr->changes.height
      + wmPtr->borderHeight);
  } else {
      wmPtr->y = winPtr->changes.y;
  }
    }
}

/*
 *----------------------------------------------------------------------
 *
 * GenerateConfigureNotify --
 *
 *  Generate a ConfigureNotify event from the current geometry
 *  information for the specified toplevel window.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Sends an X event.
 *
 *----------------------------------------------------------------------
 */

static void
GenerateConfigureNotify(winPtr)
    TkWindow *winPtr;
{
    XEvent event;

    /*
     * Generate a ConfigureNotify event.
     */

    event.type = ConfigureNotify;
    event.xconfigure.serial = winPtr->display->request;
    event.xconfigure.send_event = False;
    event.xconfigure.display = winPtr->display;
    event.xconfigure.event = winPtr->window;
    event.xconfigure.window = winPtr->window;
    event.xconfigure.border_width = winPtr->changes.border_width;
    event.xconfigure.override_redirect = winPtr->atts.override_redirect;
    event.xconfigure.x = winPtr->changes.x;
    event.xconfigure.y = winPtr->changes.y;
    event.xconfigure.width = winPtr->changes.width;
    event.xconfigure.height = winPtr->changes.height;
    event.xconfigure.above = None;
    Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
}

/*
 *----------------------------------------------------------------------
 *
 * InstallColormaps --
 *
 *  Installs the colormaps associated with the toplevel which is
 *  currently active.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  May change the system palette and generate damage.
 *
 *----------------------------------------------------------------------
 */

static int
InstallColormaps(hwnd, message, isForemost)
    HWND hwnd;      /* Toplevel wrapper window whose colormaps
         * should be installed. */
    int message;    /* Either WM_PALETTECHANGED or
         * WM_QUERYNEWPALETTE */
    int isForemost;    /* 1 if window is foremost, else 0 */
{
    int i;
    HDC dc;
    HPALETTE oldPalette;
    TkWindow *winPtr = GetTopLevel(hwnd);
    WmInfo *wmPtr;
    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
            Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));

    if (winPtr == NULL || (winPtr->flags & TK_ALREADY_DEAD) ) {
  return 0;
    }

    wmPtr = winPtr->wmInfoPtr;

    if (message == WM_QUERYNEWPALETTE) {
  /*
   * Case 1: This window is about to become the foreground window, so we
   * need to install the primary palette. If the system palette was
   * updated, then Windows will generate a WM_PALETTECHANGED message.
   * Otherwise, we have to synthesize one in order to ensure that the
   * secondary palettes are installed properly.
   */

  winPtr->dispPtr->foregroundWmPtr = wmPtr;

  if (wmPtr->cmapCount > 0) {
      winPtr = wmPtr->cmapList[0];
  }

  tsdPtr->systemPalette = TkWinGetPalette(winPtr->atts.colormap);
  dc = GetDC(hwnd);
  oldPalette = SelectPalette(dc, tsdPtr->systemPalette, FALSE);
  if (RealizePalette(dc)) {
      RefreshColormap(winPtr->atts.colormap, winPtr->dispPtr);
  } else if (wmPtr->cmapCount > 1) {
      SelectPalette(dc, oldPalette, TRUE);
      RealizePalette(dc);
      ReleaseDC(hwnd, dc);
      SendMessage(hwnd, WM_PALETTECHANGED, (WPARAM)hwnd,
        (LPARAM)NULL);
      return TRUE;
  }

    } else {
  /*
   * Window is being notified of a change in the system palette.
   * If this window is the foreground window, then we should only
   * install the secondary palettes, since the primary was installed
   * in response to the WM_QUERYPALETTE message.  Otherwise, install
   * all of the palettes.
   */


  if (!isForemost) {
      if (wmPtr->cmapCount > 0) {
    winPtr = wmPtr->cmapList[0];
      }
      i = 1;
  } else {
      if (wmPtr->cmapCount <= 1) {
    return TRUE;
      }
      winPtr = wmPtr->cmapList[1];
      i = 2;
  }
  dc = GetDC(hwnd);
  oldPalette = SelectPalette(dc,
    TkWinGetPalette(winPtr->atts.colormap), TRUE);
  if (RealizePalette(dc)) {
      RefreshColormap(winPtr->atts.colormap, winPtr->dispPtr);
  }
  for (; i < wmPtr->cmapCount; i++) {
      winPtr = wmPtr->cmapList[i];
      SelectPalette(dc, TkWinGetPalette(winPtr->atts.colormap), TRUE);
      if (RealizePalette(dc)) {
    RefreshColormap(winPtr->atts.colormap, winPtr->dispPtr);
      }
  }
    }

    SelectPalette(dc, oldPalette, TRUE);
    RealizePalette(dc);
    ReleaseDC(hwnd, dc);
    return TRUE;
}

/*
 *----------------------------------------------------------------------
 *
 * RefreshColormap --
 *
 *  This function is called to force all of the windows that use
 *  a given colormap to redraw themselves.  The quickest way to
 *  do this is to iterate over the toplevels, looking in the
 *  cmapList for matches.  This will quickly eliminate subtrees
 *  that don't use a given colormap.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Causes damage events to be generated.
 *
 *----------------------------------------------------------------------
 */

static void
RefreshColormap(colormap, dispPtr)
    Colormap colormap;
    TkDisplay *dispPtr;
{
    WmInfo *wmPtr;
    int i;

    for (wmPtr = dispPtr->firstWmPtr; wmPtr != NULL; wmPtr = wmPtr->nextPtr) {
  if (wmPtr->cmapCount > 0) {
      for (i = 0; i < wmPtr->cmapCount; i++) {
    if ((wmPtr->cmapList[i]->atts.colormap == colormap)
      && Tk_IsMapped(wmPtr->cmapList[i])) {
        InvalidateSubTree(wmPtr->cmapList[i], colormap);
    }
      }
  } else if ((wmPtr->winPtr->atts.colormap == colormap)
    && Tk_IsMapped(wmPtr->winPtr)) {
      InvalidateSubTree(wmPtr->winPtr, colormap);
  }
    }
}

/*
 *----------------------------------------------------------------------
 *
 * InvalidateSubTree --
 *
 *  This function recursively generates damage for a window and
 *  all of its mapped children that belong to the same toplevel and
 *  are using the specified colormap.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Generates damage for the specified subtree.
 *
 *----------------------------------------------------------------------
 */

static void
InvalidateSubTree(winPtr, colormap)
    TkWindow *winPtr;
    Colormap colormap;
{
    TkWindow *childPtr;

    /*
     * Generate damage for the current window if it is using the
     * specified colormap.
     */

    if (winPtr->atts.colormap == colormap) {
  InvalidateRect(Tk_GetHWND(winPtr->window), NULL, FALSE);
    }

    for (childPtr = winPtr->childList; childPtr != NULL;
      childPtr = childPtr->nextPtr) {
  /*
   * We can stop the descent when we hit an unmapped or
   * toplevel window.
   */

  if (!Tk_TopWinHierarchy(childPtr) && Tk_IsMapped(childPtr)) {
      InvalidateSubTree(childPtr, colormap);
  }
    }
}

/*
 *----------------------------------------------------------------------
 *
 * InvalidateSubTreeDepth --
 *
 *  This function recursively updates depth info for a window and
 *  all of its children that belong to the same toplevel.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Sets the depth of each window to that of the display.
 *
 *----------------------------------------------------------------------
 */

static void
InvalidateSubTreeDepth(winPtr)
    TkWindow *winPtr;
{
    Display *display = Tk_Display(winPtr);
    int screenNum = Tk_ScreenNumber(winPtr);
    TkWindow *childPtr;

    winPtr->depth = DefaultDepth(display, screenNum);

#if 0
    /*
     * XXX: What other elements may require changes?  Changing just
     * the depth works for standard windows and 16/24/32-bpp changes.
     * I suspect 8-bit (palettized) displays may require colormap and/or
     * visual changes as well.
     */

    if (winPtr->window) {
  InvalidateRect(Tk_GetHWND(winPtr->window), NULL, FALSE);
    }
    winPtr->visual = DefaultVisual(display, screenNum);
    winPtr->atts.colormap = DefaultColormap(display, screenNum);
    winPtr->dirtyAtts |= CWColormap;
#endif

    for (childPtr = winPtr->childList; childPtr != NULL;
   childPtr = childPtr->nextPtr) {
  /*
   * We can stop the descent when we hit a toplevel window, as it
   * should get its own message.
   */

  if (!Tk_TopWinHierarchy(childPtr)) {
      InvalidateSubTreeDepth(childPtr);
  }
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkWinGetSystemPalette --
 *
 *  Retrieves the currently installed foreground palette.
 *
 * Results:
 *  Returns the global foreground palette, if there is one.
 *  Otherwise, returns NULL.
 *
 * Side effects:
 *  None.
 *
 *----------------------------------------------------------------------
 */

HPALETTE
TkWinGetSystemPalette()
{
    ThreadSpecificData *tsdPtr = (ThreadSpecificData *)
            Tcl_GetThreadData(&dataKey, sizeof(ThreadSpecificData));

    return tsdPtr->systemPalette;
}

/*
 *----------------------------------------------------------------------
 *
 * GetMinSize --
 *
 *  This procedure computes the current minWidth and minHeight
 *  values for a window, taking into account the possibility
 *  that they may be defaulted.
 *
 * Results:
 *  The values at *minWidthPtr and *minHeightPtr are filled
 *  in with the minimum allowable dimensions of wmPtr's window,
 *  in grid units.  If the requested minimum is smaller than the
 *  system required minimum, then this procedure computes the
 *  smallest size that will satisfy both the system and the
 *  grid constraints.
 *
 * Side effects:
 *  None.
 *
 *----------------------------------------------------------------------
 */

static void
GetMinSize(wmPtr, minWidthPtr, minHeightPtr)
    WmInfo *wmPtr;    /* Window manager information for the
         * window. */
    int *minWidthPtr;    /* Where to store the current minimum
         * width of the window. */
    int *minHeightPtr;    /* Where to store the current minimum
         * height of the window. */
{
    int tmp, base;
    TkWindow *winPtr = wmPtr->winPtr;

    /*
     * Compute the minimum width by taking the default client size
     * and rounding it up to the nearest grid unit.  Return the greater
     * of the default minimum and the specified minimum.
     */

    tmp = wmPtr->defMinWidth - wmPtr->borderWidth;
    if (tmp < 0) {
  tmp = 0;
    }
    if (wmPtr->gridWin != NULL) {
  base = winPtr->reqWidth - (wmPtr->reqGridWidth * wmPtr->widthInc);
  if (base < 0) {
      base = 0;
  }
  tmp = ((tmp - base) + wmPtr->widthInc - 1)/wmPtr->widthInc;
    }
    if (tmp < wmPtr->minWidth) {
  tmp = wmPtr->minWidth;
    }
    *minWidthPtr = tmp;

    /*
     * Compute the minimum height in a similar fashion.
     */

    tmp = wmPtr->defMinHeight - wmPtr->borderHeight;
    if (tmp < 0) {
  tmp = 0;
    }
    if (wmPtr->gridWin != NULL) {
  base = winPtr->reqHeight - (wmPtr->reqGridHeight * wmPtr->heightInc);
  if (base < 0) {
      base = 0;
  }
  tmp = ((tmp - base) + wmPtr->heightInc - 1)/wmPtr->heightInc;
    }
    if (tmp < wmPtr->minHeight) {
  tmp = wmPtr->minHeight;
    }
    *minHeightPtr = tmp;
}

/*
 *----------------------------------------------------------------------
 *
 * GetMaxSize --
 *
 *  This procedure computes the current maxWidth and maxHeight
 *  values for a window, taking into account the possibility
 *  that they may be defaulted.
 *
 * Results:
 *  The values at *maxWidthPtr and *maxHeightPtr are filled
 *  in with the maximum allowable dimensions of wmPtr's window,
 *  in grid units.  If no maximum has been specified for the
 *  window, then this procedure computes the largest sizes that
 *  will fit on the screen.
 *
 * Side effects:
 *  None.
 *
 *----------------------------------------------------------------------
 */

static void
GetMaxSize(wmPtr, maxWidthPtr, maxHeightPtr)
    WmInfo *wmPtr;    /* Window manager information for the
         * window. */
    int *maxWidthPtr;    /* Where to store the current maximum
         * width of the window. */
    int *maxHeightPtr;    /* Where to store the current maximum
         * height of the window. */
{
    int tmp;

    if (wmPtr->maxWidth > 0) {
  *maxWidthPtr = wmPtr->maxWidth;
    } else {
  /*
   * Must compute a default width.  Fill up the display, leaving a
   * bit of extra space for the window manager's borders.
   */

  tmp = wmPtr->defMaxWidth - wmPtr->borderWidth;
  if (wmPtr->gridWin != NULL) {
      /*
       * Gridding is turned on;  convert from pixels to grid units.
       */

      tmp = wmPtr->reqGridWidth
        + (tmp - wmPtr->winPtr->reqWidth)/wmPtr->widthInc;
  }
  *maxWidthPtr = tmp;
    }
    if (wmPtr->maxHeight > 0) {
  *maxHeightPtr = wmPtr->maxHeight;
    } else {
  tmp = wmPtr->defMaxHeight - wmPtr->borderHeight;
  if (wmPtr->gridWin != NULL) {
      tmp = wmPtr->reqGridHeight
        + (tmp - wmPtr->winPtr->reqHeight)/wmPtr->heightInc;
  }
  *maxHeightPtr = tmp;
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TopLevelProc --
 *
 *  Callback from Windows whenever an event occurs on a top level
 *  window.
 *
 * Results:
 *  Standard Windows return value.
 *
 * Side effects:
 *  Default window behavior.
 *
 *----------------------------------------------------------------------
 */

static LRESULT CALLBACK
TopLevelProc(hwnd, message, wParam, lParam)
    HWND hwnd;
    UINT message;
    WPARAM wParam;
    LPARAM lParam;
{
    if (message == WM_WINDOWPOSCHANGED) {
  WINDOWPOS *pos = (WINDOWPOS *) lParam;
  TkWindow *winPtr = (TkWindow *) Tk_HWNDToWindow(pos->hwnd);

  if (winPtr == NULL) {
      return 0;
  }

  /*
   * Update the shape of the contained window.
   */

  if (!(pos->flags & SWP_NOSIZE)) {
      winPtr->changes.width = pos->cx;
      winPtr->changes.height = pos->cy;
  }
  if (!(pos->flags & SWP_NOMOVE)) {
      winPtr->changes.x = pos->x;
      winPtr->changes.y = pos->y;
  }

  GenerateConfigureNotify(winPtr);

  Tcl_ServiceAll();
  return 0;
    }
    return TkWinChildProc(hwnd, message, wParam, lParam);
}

/*
 *----------------------------------------------------------------------
 *
 * WmProc --
 *
 *  Callback from Windows whenever an event occurs on the decorative
 *  frame.
 *
 * Results:
 *  Standard Windows return value.
 *
 * Side effects:
 *  Default window behavior.
 *
 *----------------------------------------------------------------------
 */

static LRESULT CALLBACK
WmProc(hwnd, message, wParam, lParam)
    HWND hwnd;
    UINT message;
    WPARAM wParam;
    LPARAM lParam;
{
    static int inMoveSize = 0;
    static int oldMode;  /* This static is set upon entering move/size mode
       * and is used to reset the service mode after
       * leaving move/size mode.  Note that this mechanism
       * assumes move/size is only one level deep. */
    LRESULT result;
    TkWindow *winPtr = NULL;

    if (TkWinHandleMenuEvent(&hwnd, &message, &wParam, &lParam, &result)) {
  goto done;
    }

    switch (message) {
  case WM_KILLFOCUS:
  case WM_ERASEBKGND:
      result = 0;
      goto done;

  case WM_ENTERSIZEMOVE:
      inMoveSize = 1;

      /*
       * Cancel any current mouse timer.  If the mouse timer
       * fires during the size/move mouse capture, it will
       * release the capture, which is wrong.
       */

      TkWinCancelMouseTimer();

      oldMode = Tcl_SetServiceMode(TCL_SERVICE_ALL);
      break;

  case WM_ACTIVATE:
  case WM_EXITSIZEMOVE:
      if (inMoveSize) {
    inMoveSize = 0;
    Tcl_SetServiceMode(oldMode);
      }
      break;

  case WM_GETMINMAXINFO:
      SetLimits(hwnd, (MINMAXINFO *) lParam);
      result = 0;
      goto done;

  case WM_DISPLAYCHANGE:
      /* display and/or color resolution changed */
      winPtr = GetTopLevel(hwnd);
      if (winPtr) {
    Screen *screen = Tk_Screen(winPtr);
    if (screen->root_depth != (int) wParam) {
        /*
         * Color resolution changed, so do extensive rebuild of
         * display parameters.  This will affect the display for
         * all Tk windows.  We will receive this event for each
         * toplevel, but this check makes us update only once, for
         * the first toplevel that receives the message.
         */
        TkWinDisplayChanged(Tk_Display(winPtr));
    } else {
        HDC dc = GetDC(NULL);
        screen->width   = LOWORD(lParam); /* horizontal res */
        screen->height  = HIWORD(lParam); /* vertical res */
        screen->mwidth  = MulDiv(screen->width, 254,
          GetDeviceCaps(dc, LOGPIXELSX) * 10);
        screen->mheight = MulDiv(screen->height, 254,
          GetDeviceCaps(dc, LOGPIXELSY) * 10);
        ReleaseDC(NULL, dc);
    }
    if (Tk_Depth(winPtr) != (int) wParam) {
        /*
         * Defer the window depth check to here so that each
         * toplevel will properly update depth info.
         */
        InvalidateSubTreeDepth(winPtr);
    }
      }
      result = 0;
      goto done;

  case WM_SYSCOLORCHANGE:
      /*
       * XXX: Called when system color changes.  We need to
       * update any widgets that use a system color.
       */
      break;

  case WM_PALETTECHANGED:
      result = InstallColormaps(hwnd, WM_PALETTECHANGED,
        hwnd == (HWND)wParam);
      goto done;

  case WM_QUERYNEWPALETTE:
      result = InstallColormaps(hwnd, WM_QUERYNEWPALETTE, TRUE);
      goto done;

  case WM_WINDOWPOSCHANGED:
      ConfigureTopLevel((WINDOWPOS *) lParam);
      result = 0;
      goto done;

  case WM_NCHITTEST: {
      winPtr = GetTopLevel(hwnd);
      if (winPtr && (TkGrabState(winPtr) == TK_GRAB_EXCLUDED)) {
    /*
     * This window is outside the grab heirarchy, so don't let any
     * of the normal non-client processing occur.  Note that this
     * implementation is not strictly correct because the grab
     * might change between now and when the event would have been
     * processed by Tk, but it's close enough.
     */

    result = HTCLIENT;
    goto done;
      }
      break;
  }

  case WM_MOUSEACTIVATE: {
      ActivateEvent *eventPtr;
      winPtr = GetTopLevel((HWND) wParam);

      if (winPtr && (TkGrabState(winPtr) != TK_GRAB_EXCLUDED)) {
    /*
     * This allows us to pass the message onto the
     * native menus [Bug: 2272]
     */
    result = (*tkWinProcs->defWindowProc)(hwnd, message,
      wParam, lParam);
    goto done;
      }

      /*
       * Don't activate the window yet since there is a grab
       * that takes precedence.  Instead we need to queue
       * an event so we can check the grab state right before we
       * handle the mouse event.
       */

      if (winPtr) {
    eventPtr = (ActivateEvent *)ckalloc(sizeof(ActivateEvent));
    eventPtr->ev.proc = ActivateWindow;
    eventPtr->winPtr = winPtr;
    Tcl_QueueEvent((Tcl_Event*)eventPtr, TCL_QUEUE_TAIL);
      }
      result = MA_NOACTIVATE;
      goto done;
  }

  case WM_QUERYENDSESSION: {
      XEvent event;

      winPtr = GetTopLevel(hwnd);
      event.xclient.message_type =
    Tk_InternAtom((Tk_Window) winPtr, "WM_PROTOCOLS");
      event.xclient.data.l[0] =
    Tk_InternAtom((Tk_Window) winPtr, "WM_SAVE_YOURSELF");
      TkWmProtocolEventProc(winPtr, &event);
      break;
  }

  default:
      break;
    }

    winPtr = GetTopLevel(hwnd);
    if (winPtr && winPtr->window) {
  HWND child = Tk_GetHWND(winPtr->window);
  if (message == WM_SETFOCUS) {
      SetFocus(child);
      result = 0;
  } else if (!Tk_TranslateWinEvent(child, message, wParam, lParam,
    &result)) {
      result = (*tkWinProcs->defWindowProc)(hwnd, message,
        wParam, lParam);
  }
    } else {
  result = (*tkWinProcs->defWindowProc)(hwnd, message, wParam, lParam);
    }

    done:
    Tcl_ServiceAll();
    return result;
}

/*
 *----------------------------------------------------------------------
 *
 * TkpMakeMenuWindow --
 *
 *  Configure the window to be either a pull-down (or pop-up)
 *  menu, or as a toplevel (torn-off) menu or palette.
 *
 * Results:
 *  None.
 *
 * Side effects:
 *  Changes the style bit used to create a new toplevel.
 *
 *----------------------------------------------------------------------
 */

void
TkpMakeMenuWindow(tkwin, transient)
    Tk_Window tkwin;    /* New window. */
    int transient;    /* 1 means menu is only posted briefly as
         * a popup or pulldown or cascade.  0 means
         * menu is always visible, e.g. as a torn-off
         * menu.  Determines whether save_under and
         * override_redirect should be set. */
{
    XSetWindowAttributes atts;

    if (transient) {
  atts.override_redirect = True;
  atts.save_under = True;
    } else {
  atts.override_redirect = False;
  atts.save_under = False;
    }

    if ((atts.override_redirect != Tk_Attributes(tkwin)->override_redirect)
      || (atts.save_under != Tk_Attributes(tkwin)->save_under)) {
  Tk_ChangeWindowAttributes(tkwin,
    CWOverrideRedirect|CWSaveUnder, &atts);
    }

}

/*
 *----------------------------------------------------------------------
 *
 * TkWinGetWrapperWindow --
 *
 *  Gets the Windows HWND for a given window.
 *
 * Results:
 *  Returns the wrapper window for a Tk window.
 *
 * Side effects:
 *  None.
 *
 *----------------------------------------------------------------------
 */

HWND
TkWinGetWrapperWindow(
    Tk_Window tkwin)    /* The window we need the wrapper from */
{
    TkWindow *winPtr = (TkWindow *)tkwin;
    return (winPtr->wmInfoPtr->wrapper);
}


/*
 *----------------------------------------------------------------------
 *
 * TkWmFocusToplevel --
 *
 *  This is a utility procedure invoked by focus-management code. It
 *  exists because of the extra wrapper windows that exist under
 *  Unix; its job is to map from wrapper windows to the
 *  corresponding toplevel windows.  On PCs and Macs there are no
 *  wrapper windows so no mapping is necessary;  this procedure just
 *  determines whether a window is a toplevel or not.
 *
 * Results:
 *  If winPtr is a toplevel window, returns the pointer to the
 *  window; otherwise returns NULL.
 *
 * Side effects:
 *  None.
 *
 *----------------------------------------------------------------------
 */

TkWindow *
TkWmFocusToplevel(winPtr)
    TkWindow *winPtr;    /* Window that received a focus-related
         * event. */
{
    if (!(winPtr->flags & TK_TOP_HIERARCHY)) {
  return NULL;
    }
    return winPtr;
}
 
/*
 *----------------------------------------------------------------------
 *
 * TkpGetWrapperWindow --
 *
 *  This is a utility procedure invoked by focus-management code. It
 *  maps to the wrapper for a top-level, which is just the same
 *  as the top-level on Macs and PCs.
 *
 * Results:
 *  If winPtr is a toplevel window, returns the pointer to the
 *  window; otherwise returns NULL.
 *
 * Side effects:
 *  None.
 *
 *----------------------------------------------------------------------
 */

TkWindow *
TkpGetWrapperWindow(
    TkWindow *winPtr)    /* Window that received a focus-related
         * event. */
{
    if (!(winPtr->flags & TK_TOP_HIERARCHY)) {
  return NULL;
    }
    return winPtr;
}

/*
 *----------------------------------------------------------------------
 *
 * ActivateWindow --
 *
 *  This function is called when an ActivateEvent is processed.
 *
 * Results:
 *  Returns 1 to indicate that the event was handled, else 0.
 *
 * Side effects:
 *  May activate the toplevel window associated with the event.
 *
 *----------------------------------------------------------------------
 */

static int
ActivateWindow(
    Tcl_Event *evPtr,    /* Pointer to ActivateEvent. */
    int flags)      /* Notifier event mask. */
{
    TkWindow *winPtr;

    if (! (flags & TCL_WINDOW_EVENTS)) {
  return 0;
    }

    winPtr = ((ActivateEvent *) evPtr)->winPtr;

    /*
     * If the window is excluded by a grab, call SetFocus on the
     * grabbed window instead. [Bug 220908]
     */

    if (winPtr) {
  if (TkGrabState(winPtr) != TK_GRAB_EXCLUDED) {
      SetFocus(Tk_GetHWND(winPtr->window));
  } else {
      SetFocus(Tk_GetHWND(winPtr->dispPtr->grabWinPtr->window));
  }
    }

    return 1;
}


/*
 *----------------------------------------------------------------------
 *
 * TkWinSetForegroundWindow --
 *
 *  This function is a wrapper for SetForegroundWindow, calling
 *      it on the wrapper window because it has no affect on child
 *      windows.
 *
 * Results:
 *  none
 *
 * Side effects:
 *  May activate the toplevel window.
 *
 *----------------------------------------------------------------------
 */

void
TkWinSetForegroundWindow(winPtr)
    TkWindow *winPtr;
{
    register WmInfo *wmPtr = winPtr->wmInfoPtr;

    if (wmPtr->wrapper != NULL) {
  SetForegroundWindow(wmPtr->wrapper);
    } else {
  SetForegroundWindow(Tk_GetHWND(winPtr->window));
    }
}
