I guess this is related that GetActiveQmitkRenderWindow always returns GetRenderWindow1()
The correct window is selected if it is maximized (the others are not visible), but then captured region is smaller than the actually displayed region.
I guess this is related that GetActiveQmitkRenderWindow always returns GetRenderWindow1()
The correct window is selected if it is maximized (the others are not visible), but then captured region is smaller than the actually displayed region.