I have a dialog which contains a tab widget with many further widgets. When I "accept" this dialog I get the "QCoreApplication:ostEvent: Unexpected null receiver" warning. If I a "reject" the dialog I don't get the warning.

I'm not sure what causes this warning. Worse I don't know where to locate the warning.

Does somebody have some more information on what exactly may cause this warning?

Or is there someway to get QT to emit /useful/ information, such as which message is being posted?