Details
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Bug
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Resolution: Fixed
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P1: Critical
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6.5.0 Beta3
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None
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macOS 13.2
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4e59a5252 (dev), 805f40924 (6.5.0), 4c7e342f6 (6.5)
Description
When spawning QMenu and using it to create a QMessageBox, when exec-ing said messagebox it returns immediately with return value 0 (NoButton). Sometimes (but not always) the native-looking messagebox is visible for a frame or two.
This is new to Qt 6.5. In Qt 6.4, the Qt generated messagebox correctly pops up and blocks until the user presses a button (or closes the dialog with other means).
I attached a minimal sample below that demonstrates the behavior.
I could not confirm other platforms, seeing the switch from Qt-generated to native messageboxes I would assume this to likely be exclusive to macOS.