CODEWITHSUNDEEP
eventsqt4widgetkeypress
daisy
daisy

Reputation: 23499

how to let child widget process QKeyEvent?

I'm using a QTabWidget as centralWidget in a QMainWindow , however , keyPressEvent() won't trigger in any child widget of QTabWidget , if i try the following in that QMainWindow::keyPressEvent() , it will crash.

void Window::keyPressEvent(QKeyEvent *e) {
    QApplication::sendEvent( centralWidget->currentWidget() , e );
}

Window is an instance of QMainWindow.

What's the correct way to let child handle those events , instead of parent widgets ?

Upvotes: 0

Views: 579

Answers (1)

Arnold Spence
Arnold Spence

Reputation: 22272

If the child widget is designed to receive and handle key press events, then it will receive them if it has keyboard focus. If it is a custom or subclassed widget then you will need to do a few other things besides just overriding the child widget's keyPressEvent() as described here.

Upvotes: 2

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