Retrieves the specified texture surface level.
HRESULT GetSurfaceLevel( [in] UINT Level, [out, retval] IDirect3DSurface9 **ppSurfaceLevel );
- Level [in]
Identifies a level of the texture resource. This method returns a surface for the level specified by this parameter. The top-level surface is denoted by 0.
- ppSurfaceLevel [out, retval]
Address of a pointer to an IDirect3DSurface9 interface, representing the returned surface.
If the method succeeds, the return value is D3D_OK. If the method fails, the return value can be one D3DERR_INVALIDCALL.
Calling this method will increase the internal reference count on the IDirect3DSurface9 interface. Failure to call IUnknown::Release when finished using this IDirect3DSurface9 interface results in a memory leak.