Can you give me a sample script for usage of QVTKRenderWindowInteractor class ? and the script you have attached is different from ..\vtk\qt4\QVTKRenderWindowInteractor.py ? -- View this message in context: http://vtk.1045678.n5.nabble.com/QVTKWidget-in-Python-tp5024567p5028407.html Sent from the VTK - Users mailing list archive at Nabble.com.