[Interest] QDialog and Ubuntu 18.04
maitai
maitai at virtual-winds.org
Mon May 4 21:05:00 CEST 2020
Any insight? I will open a qt-bug then
Thanks
Le 24-04-2020 10:07, maitai a écrit :
> Hello all
>
> I am having strange QDialog behavior under Ubuntu 18.04. The
> application is a QWidget app compiled either with qt 5.14.1 or qt
> 5.12.3 that does not matter
>
> Here the behavior is the following:
>
> If I use UNITY desktop moving (dragging) a QDialog works, but instead
> of moving straight away it display an ugly red rectangle and the
> dialog moves there when I release the mouse.
> If I use UBUNTU desktop (which is in fact Gnome 3 I believe), then it
> does not work at all: trying to move the dialog does nothing, and when
> you release the mouse the main application (QMainWindow) disappears.
>
> Some users have reported other bad behaviors, for instance just not
> moving at all, or bad behavior also with UNITY desktop
>
> I have tried playing with QT_QPA_PLATFORMTHEME environnement variable
> but it seems to do nothing.
>
> The same app compiled with qt 5.11.3 running on Ubuntu 14.04 behaves
> normally (QDialogs are moving like on Windows, i.e just moving)
>
> So my question is: is there a way to have a regular normal QDialog
> dragging on Ubuntu 18.04 (= no fancy decoration, just move the box) ?
>
> Thanks in advance
> Philippe Lelong
>
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