[Bug 57178] toolbar control doesn't forward WM_NOTIFY to it's original parent

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57178

--- Comment #3 from [e-mail] ---
Created attachment 77208
  --> https://bugs.winehq.org/attachment.cgi?id=77208
fixing attempt 1

observations from windows 7 ultimate service pack 1 x64 (cheat engine didn't
work in windows xp professional x64 edition service pack 2):
• TB_SETPARENT message changes which window gets forwarded WM_NOTIFY
• WM_NOTIFY message is forwarded using SendMessageW (even if original WM_NOTIFY
message was sent using SendMessageA)