"Image Gestures Example" from Qt does not work in desktop os?

[saber]

i am in qt5.11 and linnux.
i want to add swipe gesture in my desktop app that build on c++.
so i wanted to see if the given example given by the qt works or not,but it is not working ,it dose not get ant gesture.

Image Gestures Example
is gesture support needs a touchscreen ,but only swipe gesture dose not need a touchscreen.

[jsulm]

@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.

Hm, yes if you want gestures you need touch screen - how else it could work?
"but only swipe gesture dose not need a touchscreen" - it does need touch screen.
So, do you have a touch screen?

[J.Hilk]

@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.