[vtkusers] Using GL with VTK in same WIN32 app fails

[Anthony Sherbondy]

Hello,

I am using VTK and OpenGL simultaneously in an application.  I.e. there are
multiple windows visualizing the same data set.  One window uses OpenGL API
directly to draw where as the other window is drawn by GL through VTK.
Either window works as expected when up alone, but if both windows are up
simultaneously there are glitches in both scenes.  This may be more of an
OpenGL issue, but I am wondering if the windows are conflicting with global
GL memory since both windows are run from the same application or ....
Please point me in the right direction.  Thanks for the time.

--Tony