I forgot, in order to detect when the window lost "focus" (ie is no longer the active window), you need to catch QFocusEvent, and check if reason() is Qt::ActiveWindowFocusReason
Cheers, Etienne 2017-03-16 22:34 GMT+01:00 Etienne Sandré-Chardonnal <etienne.san...@m4x.org >: > Hi, > > That's because a context menu is a system level window, not a widget. > And what you call focus is in fact not focus, but active window. See > QApplication::activeWindow > > You create such a window by creating a QWidget with no parent and a > WindowFlag: > > QWidget(0, Qt::Popup); > > 2017-03-16 15:56 GMT+01:00 Nicolas Krieger <nicolas.krieger-medecom29@ > orange.fr>: > >> Hi, >> >> I try to have a contextual menu with a semi-transparent background. I >> didnt manage to to it with QMenu, so I decided to use a custom widget. >> >> I have no problem to have a widget with a semi-transparent background, I >> just changed the alpha of the background color. >> >> My problem is that I want this widget to behave like a contextual menu, >> that is to say, I want it to be closed when focus is lost. But this is lot >> as soon as I clic on a children-widget of this menu. I don't know how to do. >> >> Nicolas Krieger >> >> _______________________________________________ >> Interest mailing list >> Interest@qt-project.org >> http://lists.qt-project.org/mailman/listinfo/interest >> > >
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