You might notice the dialog for DXGL Config has a regular window border instead of a dialog border on certain WindowBlinds skins.  While this is not part of the bug report, I have found it was due to using an incorrect window style for the dialog (I was missing the DS_MODALFRAME style bit in the resource file for the main dialog box).

However, fixing this small issue made no difference in the issue I have shown in this video.

If there are any code changes to my project you suggest I try to make it play nicer with WindowBlinds 10, please let me know.

P.S.  I tested with WindowBlinds 8 under Windows 7, and the checkboxes in the owner-draw list controls display just fine.

I have had a look and there is an error in your code.

In your WM_THEMECHANGED handler you do this :

if (hThemeDisplay) _CloseThemeData(hThemeDisplay);

_OpenThemeData(hWnd, L"Button");

But that frees the theme handle but never reassigns the value from the new OpenThemeData call to hThemeDisplay.

WindowBlinds will not render if a theme handle has been freed.

The WM_THEMECHANGED handler is also missing a break.

Just tested, WindowBlinds appears to be working fully now.  Thanks for the heads-up!

Since the issue is now resolved, you may close this thread.