Jacek Caban (@jacek) commented about dlls/user.exe16/message.c:
*/ HWND create_window16( CREATESTRUCTW *cs, LPCWSTR className, HINSTANCE instance, BOOL unicode ) {
I'd expect 16-bit `CreateWindow()` to be similar to 32-bit, which would mean that it's not the right place to fix it. I think we want something similar to 0739aa610cc073b, could you please give https://gitlab.winehq.org/jacek/wine/-/commit/c8d7581cb05d7476f9daf90419c987... a try?