Solved Frameless QDialog and TouchPad events

[Milosz]

I have opened dialog window inherited form QDialog class and
set flags (Qt::FramelessWindowHint | Qt::Dialog )
(to get rid of the title bar).
When I touch on touchpad any key there are no effect - mouse actions work properly.
What the problem?

Thanks in advance

[Kent-Dorfman]

have you guaranteed that the dialog has focus when you try to press a key? modal dialogs should steal the focus when active. you said "mouse works" are there clickable widgets on the dialog that you are verifying the dialog receives events?

[Milosz]

@Milosz
The problem was solved by upgrading Qt from 5.10 to 5.12.2