comctl32: Implementation the WM_GETTEXT processing of datetime control

[Nikolay Sivov]

Ilya Shpigor wrote:
>
> GetWindowText work with the server side text buffer. Are you offer to use it? 
> I don't sure that control text and this kind of window text are same things. 
>   
Hmm, I'm not sure. Looks like setting text always goes to server call, 
maybe it's the same thing (synced somewhere?)...
Anyway GetWindowText should work, and Wine's implementation uses 
WM_GETTEXT only for same process windows,
so you shouldn't override default handling for this message.
> Datetime control have own interpretation of data in the self text buffers. 
> Using window text will need some synchronization when this data change. Can I 
> do it?
>   
Or course you can, format a string every time contents change and store 
it with SetWindowText(). WM_GETTEXT
will work through default procedure (I've done it that way for IPAddress 
control).

P.S. Also don't forget comments regarding tests part.

Thanks.