Bug in SetRenderWindow(NULL) => still a bug
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
As reported by Dean Inglis, there is a bug in vtkWin32OpengRenderWindow that is reproducable when using borland's VCL. A call to MakeCurrent is producing error:
ERROR: In c:\Builder\Sources\VTK\Rendering\vtkWin32OpenGLRenderWindow.cxx, line 220 vtkWin32OpenGLRenderWindow (01A9F02C): wglMakeCurrent failed in MakeCurrent(), error: The handle is invalid.