Hi,
I have a strange problem with a macos X build, each time I instantiate a QVideoWidget many control elements in the GUI stops working, especially tree controls.
I noticed that than the application outputs:
QBackingStore::flush() called with non-exposed window, behavior is undefined
on windows and linux this problem does not occurs.
I'm using qt 5.0.2
does anyone head a seminar issue and may be know how to fix it?
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