Windows virtual keyboard is not showing when touching QLineEdit

[Dadi]

Qt is supporting native virtual keyboard when touching QLineEdit widget using a touch screen.
It works well when no native child windows were created (e.g. no call to QWidget::winId(), not using WA_NativeWindow etc) and the native virtual keyboard opens well.
But if calling to winId on one of the child widgets which creates a native child-window, or setting the attribute Qt::AA_NativeWindows on startup - then the native keyboard is not showing.

Any idea what is wrong? how this can be resolved?
Tried to debug QWindowsInputContext::showInputPanel() and looks like it calls the correct Windows APIs as expected (ImmAssociateContextEx) but still the window is not showing.
Thank you!

[Christian Ehrlicher]

You should create a bug report about this in the bug reporting system.

[Dadi]

@Christian-Ehrlicher
Created https://bugreports.qt.io/browse/QTBUG-109742

[SGaist]

@Dadi can you provide a minimal compilable example to your bug report ? That will make the debugging of the situation easier.