Although not explicitly documented, this is the behavior in practice
on XCB and Windows, and we rely on this behavior in our implementation
of QApplication::widgetAt(), where we punch a temporary hole in the
widget using a mask if it has Qt::WA_TransparentForMouseEvents set.
Pick-to: 6.5 6.6
Fixes: QTBUG-41696
Task-number: QTBUG-119092
Change-Id: Ie7abc31b6930ee6b56fcdf391befc625c1ddf502
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
189f9873ae