[vtkusers] VTK and MFC message handlers

[Iván M]

Dear VTK users:

Im working on an MFC dialog based application that uses an 
vtkWin32OpenGLRenderWindow whose parent is a CWnd derived window placed in 
the dialog. In this class I have also declared a 
vtkWin32RenderWindowInteractor object that is working fine.

Now I want to write a message handler for OnMouseMove() in the CWnd derived 
class which should do some processing and then call 
vtkWin32RenderWindowInteractor::OnMouseMove(). The problem is that the CWnd 
derived window is not receiving WM_MOUSEMOVE messages because these are 
being managed by the vtkWin32OpenGLRenderWindow placed over it. The same 
happens if I implement a message handler for OnMouseMove in the MFC SDI 
example.

I have tried to make the vtkWin32OpenGLRenderWindow a bit smaller than the 
CWnd derived window and as I expected the latter receives the WM_MOUSEMOVE 
messages in the area not occupied by the render window. Any idea how to 
solve this?

Thanks in advance

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