public static extern bool sndPlaySound(IntPtr snd, sndFlags sflg);
public static extern bool sndPlaySound([MarshalAs(UnmanagedType.LPStr)] string snd, sndFlags sflg);
public static extern bool sndPlaySound(int snd, sndFlags sflg);
public static extern bool sndPlaySound( [MarshalAs(UnmanagedType.LPStr)] string snd, sndFlags sflg );