menu: Fix for menu tracking problem version 2

[Alexandre Julliard]

Andrew de Quincey <adq_dvb at lidskialf.net> writes:

> I wrote a program in windows which had owner drawn menu items. Whenever I 
> received the WM_DRAWITEM message:
>
> 1) I called GetCapture(), and compared it with the hwnd of main window 
> containing the menu. It pops up a message box if they are different.
> 2) I then called SetCapture() with the HWND of the menu item itself. 
>
> This approximately simulates what IDA is doing. 
>
> The message box never popped up. This shows that even though the capture was 
> changed in one WM_DRAWITEM, windows had reset the capture to the window 
> containing the menu by the time of the next one. I also checked the messages 
> _were_ being sent using Spy++ (in case of a programming error). 

That's a good start, but it's not enough to know what Windows is
really doing. You should also check the capture window right after you
call SetCapture; and you should use GetGUIThreadInfo and print out all
the details, especially the GUI_INMENUMODE flag. My suspicion is that
the capture is not allowed to change at all in menu mode.

-- 
Alexandre Julliard
julliard at winehq.com