QDialog on Wayland

[jean-michel jarre]

Hello,

I am running Qt 5.12.8 with Wayland in a kiosk with Ubuntu Core 20.
However, QDialogs do not have the right window buttons. In particular, they do have minimize/maximize which is problematic in a kiosk env. If I set windowflags to Popup, they have no frame at all, and no button (not good). I also tried with CustomizeWindowHint, it seems to be ignored by Wayland/QtWayland.

How to have a Qdialog with the right window (frame, title and close button only) in Wayland ?

Thanks