internal static extern PlayerErrorCode SetPlayPosition(IntPtr player, int millisecond, bool accurate, SeekCompletedCallback cb, IntPtr userData = default(IntPtr));
internal static extern PlayerErrorCode SetPlayPositionNanoseconds(IntPtr player, long nanoseconds, bool accurate, SeekCompletedCallback cb, IntPtr userData = default(IntPtr));
internal static extern RadioError SeekDown(RadioHandle radio, SeekCompletedCallback callback, IntPtr userData = default(IntPtr));