Add support for CS_NOCLOSE

[Alexandre Julliard]

"Dmitry Timoshkov" <dmitry at baikal.ru> writes:

> Windows doesn't use SetWindowPos to update the disabled Close button,
> but draws the button directly.

Actually that doesn't look right either, we shouldn't bypass the
normal painting code IMO; but RedrawWindow(RDW_FRAME) would probably
work better than SetWindowPos.

-- 
Alexandre Julliard
julliard at winehq.com