| DirectX SDK | 
The IDirectDrawSurface7::EnumAttachedSurfaces method enumerates all the surfaces attached to a given surface.
HRESULT EnumAttachedSurfaces( LPVOID lpContext, LPDDENUMSURFACESCALLBACK2 lpEnumSurfacesCallback );
If the method succeeds, the return value is DD_OK.
If it fails, the method can return one of the following error values:
| DDERR_INVALIDOBJECT | 
| DDERR_INVALIDPARAMS | 
| DDERR_SURFACELOST | 
This method enumerates only those surfaces that are directly attached to this surface. For example, in a flipping chain of three or more surfaces, only one surface is enumerated because each surface is attached only to the next surface in the flipping chain. In such a configuration, you can call EnumAttachedSurfaces on each successive surface to walk the entire flipping chain.
This method differs from its counterparts in previous interface versions in that it accepts a pointer to an EnumSurfacesCallback2 function, rather than an EnumSurfacesCallback function.
  Windows NT/2000: Requires Windows 2000.
  Windows 95/98: Requires Windows 98.
  Header: Declared in ddraw.h.