<![CDATA[Qt::WA_TranslucentBackground can only set once ?]]>MainWindow *window;
window->setAttribute(Qt::WA_TranslucentBackground, true);

Then use a menu to
window->setAttribute(Qt::WA_TranslucentBackground, false);
It can not change !

]]>https://forum.qt.io/topic/81357/qt-wa_translucentbackground-can-only-set-onceRSS for NodeSat, 25 Apr 2026 13:00:31 GMTSun, 16 Jul 2017 07:46:17 GMT60<![CDATA[Reply to Qt::WA_TranslucentBackground can only set once ? on Mon, 17 Jul 2017 21:54:26 GMT]]>Did you try to just disable that warning when you're on twitter.

]]>https://forum.qt.io/post/405172https://forum.qt.io/post/405172Mon, 17 Jul 2017 21:54:26 GMT<![CDATA[Reply to Qt::WA_TranslucentBackground can only set once ? on Mon, 17 Jul 2017 03:49:36 GMT]]>@SGaist So, what is the solution ?

]]>https://forum.qt.io/post/404987https://forum.qt.io/post/404987Mon, 17 Jul 2017 03:49:36 GMT<![CDATA[Reply to Qt::WA_TranslucentBackground can only set once ? on Sun, 16 Jul 2017 21:11:54 GMT]]>Hi,

Did you saw in the documentation that setting WA_TranslucentBackground also sets WA_NoSystemBackground?

]]>https://forum.qt.io/post/404964https://forum.qt.io/post/404964Sun, 16 Jul 2017 21:11:54 GMT