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1 __UI_UnloadSignal
FellippeHeitor edited this page 2016-12-22 00:13:09 -02:00

The global variable __UI_UnloadSignal will be set to True if the user requested the program to be closed, either by clicking the X button on the title bar or by hitting Alt+F4 (Windows only).

In an BeforeUnload event, set this variable to False to cancel the quit request.