RE: Problems with WM_NCHITTEST and HTTRANSPARENT

[Patrik Stridvall]

> I'm currently having problems with this situation:
>
> Thread 1 owns some controls (modeless dialog box, actually)
>
> Thread 2 owns a window that covers the dialog (let's say it's like a
> "skin" or something...)
>
> The window procedure for thread 2's window return HTTRANSPARENT in its
> WM_NCHITTEST handler, so in theory mouse messages should get 
> passed down
> to thread 1's controls. Now, what happens is this...
> [snip]
> Any ideas on how to solve this, or whether it's supposed to work at all? I
> think I could fix some games if this worked... otherwise I'll have to
> think of some other way...
> From MSDN:
> < HTTRANSPARENT 
> < In a window currently covered by another window in the same thread 
> < (the message will be sent to underlying windows in the same thread
> < until one of them returns a code that is not HTTRANSPARENT).

Note "window in the same thread". So it seems that you (Wine) shouldn't
pass down mouse messages to thread 1 in your example.