[vtkusers] Trouble using VTK Widget with QVTK

[andyjk]

Thanks again

We're getting to the edge of my knowledge, I'm afraid!

I can do
   vtkNew<vtkGenericOpenGLRenderWindow> renderWindow;
   ui->widget->SetRenderWindow(vtkRenderWindow::SafeDownCast(renderWindow));

and this runs (displays sphere, allows me to move it, but no contour widget
still). It seems to be no different from:
   vtkNew<vtkGenericOpenGLRenderWindow> renderWindow;
   ui->widget->SetRenderWindow(renderWindow);

If I try to grab the existing widget window (I think this is casting???):
  vtkSmartPointer<vtkGenericOpenGLRenderWindow> renderWindow = 
     
vtkGenericOpenGLRenderWindow::SafeDownCast(ui->widget->GetRenderWindow());

it compiles but I don't even see a renderwindow when I run the code, the
executable just closes gracefully.

I am not sure about breakpoints, I'm afraid.








--
Sent from: http://vtk.1045678.n5.nabble.com/VTK-Users-f1224199.html