Respond to application-wide "hotkey" in Qt
I've got a simple Qt app, and I just want to respond to the F12 key, regardless of which widget has focus.
Is there some easy signal or something I can hook in to?
I want to use the F12 key to toggle the main window fullscreen on/off.
I haven't tried, but here is what I would do :
shortcut = new QShortcut(QKeySequence(Qt::Key_F12), parent); shortcut->setContext(Qt::ApplicationShortcut);
Then you just need to connect a slot to the QShortcut::activated() signal.
If you have a "central widget" which all of the other widgets are children of, then you can simply set that as the widget argument for QShortcut.
self.centralwidget = QtWidgets.QWidget(MainWindow) QtWidgets.QShortcut(QtGui.QKeySequence("F12"), self.centralwidget, self.goFullScreen)
I added this as an answer because the shortcut context flag: Qt.ApplicationShortcut did not work for me.