[Bug 2082] DirectDraw games only showing black screen

http://bugs.winehq.org/show_bug.cgi?id=2082

--- Comment #131 from Henri Verbeet  ---
(In reply to comment #125)
> I think that Stefan was on the right path.  I think that, when ddraw/wined3d
> goes to set up window A for full-screen, it should not attempt to change the
> Win32 window.  I think it needs to work with the user driver to set up a
> full-screen OpenGL surface that's outside of the Win32 window hierarchy. 
> This surface would have to avoid interfering with mouse events.  Those
> should still be delivered to whatever Win32 window is under the cursor.

More or less. We have tests that show that setting a fullscreen / exclusive
cooperative level shouldn't mess with the window styles. E.g.
test_window_style() in ddraw/tests/ddraw7.c. We also have tests that show that
switching to fullscreen does have an effect on e.g. window dimensions, z-order
and focus.

The proper mechanism for communicating with the user / GL driver is probably a
WGL extension, somewhat similar to how we currently have
WGL_WINE_pixel_format_passthrough for resetting the pixel format. (Although
that specific extension has some issues.)