[Bug 7712] WeatherScope window title bars (including dialogs) only display 1 character

[Wine Bugs]

http://bugs.winehq.org/show_bug.cgi?id=7712

------- Additional Comments From [e-mail]  2007-16-03 16:11 -------
Created an attachment (id=5393)
 --> (http://bugs.winehq.org/attachment.cgi?id=5393&action=view)
a testcase

It's known that the window being Unicode depends on RegisterClass, not on
CreateWindow. The problem is that this programs passes DefWindowProcA to
RegisterClassExW as the winproc. I've checked that this works under Windows
(and there is no DefWindowProcA -> DefWindowProcW call I speculated about in
comment #21). The attached testcase shows this.