OptionalReasonGets the request type that originated this update.
OptionalLastGets the UTC time of the last change to the playing queue.
OptionalPlaylistGets the playlist.
OptionalPlayingGets the playing item index in the playlist.
OptionalStartGets the start position ticks.
OptionalIsGets a value indicating whether the current item is playing.
OptionalShuffleGets the shuffle mode.
OptionalRepeatGets the repeat mode.
Class PlayQueueUpdate.