[vtkusers] Solution to: "sample" interactor dosn't work

[Ted Christiansen]

Ron,

I havent seen the latest vtk sample, but this was a problem previously.
Make sure that vtkHandleMessage2 is being called and not
vtkHandleMessage:

  friend VTK_EXPORT LRESULT CALLBACK vtkHandleMessage2(HWND hwnd,UINT
uMsg, WPARAM w, LPARAM l, vtkWin32RenderWindowInteractor *me);

// Define our own event handler here
LRESULT vtkMFCRenderView::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->Interactor->GetInitialized())
    {
    return vtkHandleMessage2(this->m_hWnd, message, wParam, lParam, );
    }
   break;
  }
  return vtkMFCView::WindowProc(message, wParam, lParam);
}