Mouse.CursorPos is not updated on Wayland session

[AlexTP]

Demo attached.
Run the demo and (!!) put the demo window on CLEAR desktop area (no other windows must lay below).
I use Ubuntu 20.04 with Wayland session.

Now move mouse out of demo window to the CLEAR desktop area and move it there --> demo cannot update its "X:" and "Y:" labels.

GTK2 / Qt5 both affected.

[Handoko]

I compiled the demo using Lazarus 2.3.0 GTK2 64-bit run it on Ubuntu Mate 19.10. It's working good on both Marco and Compiz window managers.

[AlexTP]

1) I corrected my post: Ubuntu 22.x -> 20.x.
2) User of my text editor confirms it:
>>I use openSUSE Tumbleweed (bleeding edge rolling release) with Wayland.