https://bugs.winehq.org/show_bug.cgi?id=51348
--- Comment #3 from Zhiyi Zhang zzhang@codeweavers.com --- Created attachment 70222 --> https://bugs.winehq.org/attachment.cgi?id=70222 patch
Hi Alex. Thanks for reporting this bug. Tests show that only SetWindowTheme() should send WM_THEMECHANGED. EnableTheming() and ApplyTheme() should still post the message. I made a new version. Could you test that these patches still fix your problem?