uxtheme: also send WM_THEMECHANGED to child windows

[Frank Richter]

Every window needs to receive WM_THEMECHANGED (esp. controls), so also
send it to child windows.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: uxtheme-themechangebroadcast.diff
Type: text/x-patch
Size: 1758 bytes
Desc: not available
Url : http://www.winehq.org/pipermail/wine-patches/attachments/20050703/dd425bb8/uxtheme-themechangebroadcast.bin