Menus Truncated initially on Windows (Qt 6.2)

stefanwoe

In my Qt 6.2.0 application menus are truncated on initial display after starting the program on Windows 10.

This only happens once per Menu (once per Edit, once per Mode etc...) - but not for all Menus. It seems not to depend on the size of the Menu. Its always the last entry that will be truncated and in all cases the second last entry is a separator.

If i choose the menu a second time it will be fully displayed:

Is this a known problem or has anyone else seen this?
How can i avoid this?

stefanwoe

See also
https://stackoverflow.com/questions/69931788/qt-6-2-menus-truncated-initially-on-windows
and
https://bugreports.qt.io/browse/QTBUG-98347

JonB

@stefanwoe
Also see question & answer at https://forum.qt.io/topic/132185/long-menu-entry-displays-partially

stefanwoe

Indeed - this line fixes the problem:
QApplication::setStyle(QStyleFactory::create("Windows"));

Thanks a lot.

omichel

I found a better fix which corrects the problem without reverting to the Windows 95 style.

QGuiApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy::Floor);