Mostly to show that D3DKMTCheckOcclusion is mainly composed of
ownership checks rather than actually window occlusion. Also
composition status doesn't affect its behavior despite MSDN
say so.
Signed-off-by: Zhiyi Zhang <zzhang@codeweavers.com>
Signed-off-by: Huw Davies <huw@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>