[ros-diffs] [greatlrd] 25014: remove trunk stuff. for it was wine idea, if you reading msdn and test ms ddraw you can not use other interface that IID_IDirectDraw7 but wine allown you use older IID interface. But It will be hell to support DirectX 1-6 IID_IDirectDraw, IID_IDirectDraw2, IID_IDirectDraw4 so we doing like microsoft kill it. and this check can be use to detect if it wine ddraw or not. like test if other that IID_IDirectDraw7 are vaild.