[Bug 7512] Problem with unicode comboboxes

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=7512

------- Additional Comments From [e-mail]  2007-11-07 07:04 -------
> Under Wine it looks pretty similar and according to IsWindowUnicode() HANDLE 
> becomes first non-uncode then returns back to unicode mode, but it stops 
> processing SetWindowTextW() as unicode and expects ANSI string passed to
> this function. Definitely it's a bug in Wine :-)

Your understanding is not really correct. There are tests in Wine that show
that Wine behaves correctly in treating ANSI/Unicode window procs. It appears
that Windows has an extra hack, probably to make broken code like in library
you are using work.