[vtkusers] HELP! A vtkRenderWindowInteractor problem.....

[Marcelo de Pierre Amati]

	Hi,
	
	I built a main python window that calls a VTK-python program; it works
with the vtkRenderWindowInteractor class. After I close the VTK window,
the main program crashes. 
I know about vtkRenderWidget, but I need some keyboard events that
aren't there. I've read something about X python (Xttoolkit). Is it a
possible way to solve my problem??? 
	
	How can I to derive python classes from vtk classes?? Is it possible
from vtkRenderWidget to inherity vtkRenderWindowInteractor or
vtkInteractorStyle class directly ? How can I do that?

	Thanks...

	Marcelo