How do you send key events to QWebEngineView if sendkey() doesn't work?

  • How can I send a key event to QWebEngineView? With QWebView I just used sendkey(), but that doesn't work for webengine. I basically have a virtual keyboard as part of my kiosk application the users can use to enter information on a specific webpage.

  • Here is a dirty solution that requires existing webenginepage->view(). This is for mouse events, and it would not be a big surprise if it's not situated for keyboard events...

    void Whatever::sendMouseEvent( QObject* targetObj, QMouseEvent::Type type, const QPoint& pnt ) const
        QMouseEvent event( type, pnt, Qt::LeftButton, Qt::LeftButton, Qt::NoModifier );
        QApplication::sendEvent( targetObj, &event );
    void Whatever::sendMouseClick( QObject* targetObj, const QPoint& pnt ) const
        sendMouseEvent( targetObj, QMouseEvent::MouseMove, pnt );
        sendMouseEvent( targetObj, QMouseEvent::MouseButtonPress, pnt );
        sendMouseEvent( targetObj, QMouseEvent::MouseButtonRelease, pnt );
    void Whatever::emulateMouseClick( const QPoint& pnt ) const
        //-- right now (Qt 5.5 & 5.6) there is only one child - 
        //-- QtWebEngineCore::RenderWidgetHostViewQtDelegateWidget
        //-- but it could change in future
        Q_FOREACH( QObject* obj, mWebEnPage->view()->children() ) //-- ACHTUNG! Check mWebEnPage->view() in real code!
            if( qobject_cast<QWidget*>( obj ) )
                sendMouseClick( obj, pnt );

    This is the solution I'm using for both Mouse and Keyboard events.
    BTW: In Qt 5.7.0 there are 3 children.

  • @ThatDud3 Could you post a full working example of this?

  • This is the full working example. I'm currently using it in my projects.

    If you want to change it for sending keys just replace sendMouseClick( obj, pnt ); in Q_FOREACH() with sendKey(obj, key); where you implement key press and release (instead of MouseMove, MouseButtonPress, MouseButtonRelease)

    NB! Original post said that there was one single object, while recently I noticed at least 3 different objects in mWebEnPage->view()->children() and that could change in the fututre so instead of discovering which one is needed and hard coding it I prefer to use the loop and just send events to all children.


Log in to reply

Looks like your connection to Qt Forum was lost, please wait while we try to reconnect.