Break on error

common/vtkObject.cxx

@@ -137,3 +137,13 @@ void vtkObject::SetDebug(int debugFlag)
   this->Debug = debugFlag;
 }
 
+
+// Description:
+// This method is called when vtkErrorMacro executes. It allows 
+// the debugger to break on error.
+void vtkObject::BreakOnError()
+{
+}
+
+
+

common/vtkObject.h

@@ -80,6 +80,8 @@ public:
   virtual void PrintHeader(ostream& os, vtkIndent indent);
   virtual void PrintTrailer(ostream& os, vtkIndent indent);
 
+  static void BreakOnError();
+  
 protected:
   int Debug;         // Enable debug messages
   vtkTimeStamp MTime; // Keep track of modification time

common/vtkSetGet.h

@@ -363,7 +363,7 @@ void Get##name (type data[count]) \
       vtkmsgbuff = vtkmsg.str(); \
       vtkmsgbuff[vtkmsg.pcount()] = '\0'; \
       MessageBox(NULL,vtkmsgbuff,"Debug Info",MB_ICONERROR | MB_OK); \
-      delete vtkmsgbuff;}
+      delete vtkmsgbuff; vtkObject::BreakOnError();}
 
 #else
 //
@@ -385,7 +385,7 @@ void Get##name (type data[count]) \
 // vtkErrorMacro(<< "Error message" << variable);
 //
 #define vtkErrorMacro(x) \
-  cerr << "ERROR In " __FILE__ << ", line " << __LINE__ << "\n" << this->GetClassName() << " (" << this << "): " x << "\n\n"
+  {cerr << "ERROR In " __FILE__ << ", line " << __LINE__ << "\n" << this->GetClassName() << " (" << this << "): " x << "\n\n"; vtkObject::BreakOnError();}
 #endif
 
 //