How does a Qt desktop application on Mac OS receive and respond to multi-touch guestures

gaojinhsu

For example, how can i select a word in QTextEdit by clicking the trackpad with three fingers ? Should I use cocoa API?

gaojinhsu

anybody help！

raven-worx

If you really just want the touch points on the trackpad you have to use MAC OS API. That's something Qt doesn't support (yet?) ...

For touchscreens there is a "QTouchEvent":http://qt-project.org/doc/qt-5.0/qtgui/qtouchevent.html#touchPoints class available which provides you with the needed information.

gaojinhsu

bad news! task is urgent, but i am not familiar with cocoa and object-c!
[quote author="raven-worx" date="1369726350"]If you really just want the touch points on the trackpad you have to use MAC OS API. That's something Qt doesn't support (yet?) ...

For touchscreens there is a "QTouchEvent":http://qt-project.org/doc/qt-5.0/qtgui/qtouchevent.html#touchPoints class available which provides you with the needed information.[/quote]