This method retrieves a set of lighting properties that this device uses.
HRESULT GetLight( DWORD Index, D3DMLIGHT* pLight, D3DMFORMAT* pFormat );
[in] Zero-based index of the lighting property set to retrieve. This method will fail if a lighting property has not been set for this index by calling the IDirect3DMobileDevice::SetLight method.
[out] Pointer to a D3DMLIGHT structure that is filled with the retrieved lighting-parameter set.
[in] A pointer to a of the D3DMFORMAT enumerated type that describes the format of the light.