[vtkusers] How to interact?

[zfjgo]

Hello
    
I am attempting to interact with vtkRenderWindow,so I add the following VC++ code into my Project.But all the message have no response except WM_CHAR.
Why?
Do I need to overwrite them?How to do it ?

Thanks for your reply.



LRESULT CVtkSDIView::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 
{
  switch (message)
  {
    //case WM_PAINT: 
    case WM_LBUTTONDOWN: 
    case WM_LBUTTONUP: 
    case WM_MBUTTONDOWN: 
    case WM_MBUTTONUP: 
    case WM_RBUTTONDOWN: 
    case WM_RBUTTONUP: 
    case WM_MOUSEMOVE:
    case WM_CHAR:
    case WM_TIMER:
      if (this->iren->GetInitialized())
      {
        return vtkHandleMessage2(this->m_hWnd, message, wParam, lParam, this->iren);
      }
      break;
  }
   
  return CView::WindowProc(message, wParam, lParam);
 
}


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