[vtkusers] How to perform continuous interaction between opengl and vtk window

[Soumya Dutta]

Hello Everyone,

I have an opengl code that uses glui for capturing user interaction and in
one of its button event I call an executable using system("./exe") to
invoke another prog that is a vtk volume renderer. That vtk volume renderer
reads settings from a file and displays the volume. It has its own
interaction. However I was thinking of doing this interaction between
opengl and vtk simultaneously. Currently, all the time the vtk window is
on, I can not interact with the opengl window, only when I close it then
the opengl window becomes active again. Is there a way I can keep both of
the windows active at the same time so that I change something in opengl
window and that reflects in the vtk window. Thanks for your time..

-- 
*Yours' Sincerely*,
Soumya Dutta

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