I would say that your statement applies to "works" more than to "can't".
And what do you intend to check exactly? Even if you access QApplication::topLevelWidgets() then doing that every 100ms might not be the wisest idea and you'll probably be getting a lot of false positives. Could you explain what you need this functionality for?Maybe I can check it say every 100mili sec. and see if there are new children to the main application...







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