[vtkusers] vtkRenderWindowInteractor event loop

[Bruce.Lamond at ed.ac.uk]

Hi there,
In order to interact with vtk in C++ I have to call iren->Start() to start an
infinite event loop. The documentation says that you can define your own event
loop but does anyone know how to do this? I presume I have to override The
Start() method, but in vtkRenderWindowInteractor class it doesn't contain any
code, so how do I know what to put in the overridden method?
cheers
Bruce Lamond