[vtkusers] Callbacks from the render window interacor / interactor style

[Klaus Nowikow]

Hi,

is it possible to get a notification from a vtkRenderWindowInteractor
(using vtkInteractorStyleTerrain in my case) when the user changes the
camera position? I'd like to present the camera position to the user in 
an edit box.
I am using VTK with Python.

Regards,
Klaus