The IDirectDrawSurface3::GetDDInterface method retrieves an interface to the DirectDraw object that was used to create the surface.
HRESULT GetDDInterface(
LPVOID FAR *lplpDD
);
If the method succeeds, the return value is DD_OK.
If the method fails, the return value may be one of the following error values:
DDERR_INVALIDOBJECT |
DDERR_INVALIDPARAMS |
This method was not implemented in the IDirectDraw interface.