HRESULT AddLight(LPDIRECT3DRMLIGHT lpD3DRMLight);
Adds a light to a frame.
·Returns D3DRM_OK if successful, or an error otherwise. For a list of possible return codes, see Direct3D Retained-Mode Return Values.
lpD3DRMLight
Address of a variable that represents the Direct3DRMLight object to be added to the frame.