@saber said in "Image Gestures Example" from Qt dose not work in desktop os?:
is gesture support needs a touchscreen ,but only swipe gesture dose not need a touchscreen.
Most questures need multiple touch points. 2 and more, Swipe technically only needs one finger to function correctly, so that may be the reason why that one works for you.
Because Qt interprets any touch event as a "MouseEvent" you'll end up having problems on non touch screens. YOu'll have to do your own 1 finger gesture handling or connect more than 1 mouse.