IDirectDrawSurface::SetOverlayPosition
HRESULT SetOverlayPosition(LONG lX, LONG lY);
Changes the display coordinates of an overlay surface.
·Returns DD_OK if successful, or one of the following error values otherwise:
| DDERR_GENERIC | DDERR_INVALIDOBJECT | 
| DDERR_INVALIDPARAMS | DDERR_SURFACELOST | 
| DDERR_UNSUPPORTED | 
lX
New x-display coordinate.
lY
New y-display coordinate.