WineX11.drv: create X11 window for client area 1/3

[Dmitry Timoshkov]

"Roderick Colenbrander" <thunderbird2k at gmx.net> wrote:

> This patch creates an X11 window for the client area. The code is inspired
> by old x11drv of which even a few pieces got copied over. Further Chris
> Robinson assisted with positioning issues.
> 
> After this patch most remnants of bug 2398 should be fixed, so both Direct3D
> and OpenGL apps should work fine in windowed mode (except for programs which
> use their own window rendering code).

Did you run the dlls/user32/tests with your patches applied?

-- 
Dmitry.