I have a Win32 app with UI written in WTL.
I need to display a modal dialog that has as content only a WinUI island.
I manged this, the WinUi content shows fine. The content consists of some TextBlocks and a row of buttons. Just like a MessageBox!

The problem is that pressing TAB key does not move focus between buttons.And no button has focus by default.
Actually no keyboard event fires. But buttons have keyboard accelerators and they work!

What should I do?