viz.pick() with multiple windows

[chris2307]

I have a three-screen application. I've created three windows (leftView, centreView and rightView) which is displayed on each screen.

I would like to count the number of objects in the scene at any given time. In the past, I have done this by looping through the screen and using viz.pick() to determine the number of unique objects.

I tried to get this feature working in my three-screen application. However, I believe it is only using the main viewpoint and not the three different windows because the amount of objects I am getting is the same as I would see if it was a single-screen application.

How can I do this differently so I can count the number of unique objects in view? Am I limited to just the main viewpoint when using viz.pick()