how to ignore dedicate event ( press alt + space)

[Tian__12]

in windows, when we press alt + space, system will show a menu of the active window. but i do dont want it. tell me if i can ignore it. Thanks~

[jsulm]

@Tian__12 You can override https://doc.qt.io/qt-5/qwidget.html#keyPressEvent in your main window

[Tian__12]

@jsulm Thanks for ur help.
but it doesn't work.

i try to override keypressevent, and install eventFilter. both does not work. even more, when i press alt + space, qt only post one keyEvent(alt pressdown).

void keyPressEvent(QKeyEvent *keyEvent) override {
		fout << "keyPressEvent: key: " << keyEvent->key() << ", mode: " << keyEvent->modifiers() << endl;;
	}

and output is below.

# I press alt + f
keyPressEvent: key: 16777251, mode: 134217728
keyPressEvent: key: 70, mode: 134217728
# I press alt + space
keyPressEvent: key: 16777251, mode: 134217728

i try to use event filter, and get the similar result.

	bool eventFilter(QObject *object, QEvent *event) override {
		if (event->type() != QEvent::KeyPress) {
			return false;
		}
		QKeyEvent *keyEvent = dynamic_cast<QKeyEvent*>(event);
		fout << "eventFilter: key: " << keyEvent->key() << ", mode: " << keyEvent->modifiers() << endl;;
	}

[Tian__12]

i think i find the solution. use nativeEvent https://doc.qt.io/qt-5/qwidget.html#nativeEvent