private void initCallbacks()
{
if (this.Pointer == IntPtr.Zero)
throw new InvalidOperationException("Invalid playlist pointer.");
this.fn_tracks_added = new tracks_added_delegate(tracks_added);
this.fn_tracks_removed = new tracks_removed_delegate(tracks_removed);
this.fn_tracks_moved = new tracks_moved_delegate(tracks_moved);
this.fn_playlist_renamed = new playlist_renamed_delegate(playlist_renamed);
this.fn_playlist_state_changed = new playlist_state_changed_delegate(state_changed);
this.fn_playlist_update_in_progress = new playlist_update_in_progress_delegate(playlist_update_in_progress);
this.fn_playlist_metadata_updated = new playlist_metadata_updated_delegate(metadata_updated);
this.fn_track_created_changed = new track_created_changed_delegate(track_created_changed);
this.fn_track_seen_changed = new track_seen_changed_delegate(track_seen_changed);
this.fn_description_changed = new description_changed_delegate(description_changed);
this.fn_image_changed = new image_changed_delegate(image_changed);
this.fn_track_message_changed = new track_message_changed_delegate(track_message_changed);
this.fn_subscribers_changed = new subscribers_changed_delegate(subscribers_changed);
libspotify.sp_playlist_callbacks callbacks = new libspotify.sp_playlist_callbacks();
callbacks.tracks_added = Marshal.GetFunctionPointerForDelegate(fn_tracks_added);
callbacks.tracks_removed = Marshal.GetFunctionPointerForDelegate(fn_tracks_removed);
callbacks.tracks_moved = Marshal.GetFunctionPointerForDelegate(fn_tracks_moved);
callbacks.playlist_renamed = Marshal.GetFunctionPointerForDelegate(fn_playlist_renamed);
callbacks.playlist_state_changed = Marshal.GetFunctionPointerForDelegate(fn_playlist_state_changed);
callbacks.playlist_update_in_progress = Marshal.GetFunctionPointerForDelegate(fn_playlist_update_in_progress);
callbacks.playlist_metadata_updated = Marshal.GetFunctionPointerForDelegate(fn_playlist_metadata_updated);
callbacks.track_created_changed = Marshal.GetFunctionPointerForDelegate(fn_track_created_changed);
callbacks.track_seen_changed = Marshal.GetFunctionPointerForDelegate(fn_track_seen_changed);
callbacks.description_changed = Marshal.GetFunctionPointerForDelegate(fn_description_changed);
callbacks.image_changed = Marshal.GetFunctionPointerForDelegate(fn_image_changed);
callbacks.track_message_changed = Marshal.GetFunctionPointerForDelegate(fn_track_message_changed);
callbacks.subscribers_changed = Marshal.GetFunctionPointerForDelegate(fn_subscribers_changed);
_callbacksPtr = Marshal.AllocHGlobal(Marshal.SizeOf(callbacks));
Marshal.StructureToPtr(callbacks, _callbacksPtr, true);
libspotify.sp_playlist_add_callbacks(this.Pointer, _callbacksPtr, IntPtr.Zero);
}
private void AddCallbacks()
{
_tracksAddedDelegate = TracksAdded;
_tracksRemovedDelegate = TracksRemoved;
_tracksMovedDelegate = TracksMoved;
_playlistRenamedDelegate = PlaylistRenamed;
_playlistStateChangedDelegate = StateChanged;
_playlistUpdateInProgressDelegate = PlaylistUpdateInProgress;
_playlistMetadataUpdatedDelegate = MetadataUpdated;
_trackCreatedChangedDelegate = TrackCreatedChanged;
_trackSeenChangedDelegate = TrackSeenChanged;
_descriptionChangedDelegate = DescriptionChanged;
_imageChangedDelegate = ImageChanged;
_trackMessageChangedDelegate = TrackMessageChanged;
_subscribersChangedDelegate = SubscribersChanged;
var callbacks = new libspotify.sp_playlist_callbacks
{
tracks_added = Marshal.GetFunctionPointerForDelegate(_tracksAddedDelegate),
tracks_removed = Marshal.GetFunctionPointerForDelegate(_tracksRemovedDelegate),
tracks_moved = Marshal.GetFunctionPointerForDelegate(_tracksMovedDelegate),
playlist_renamed = Marshal.GetFunctionPointerForDelegate(_playlistRenamedDelegate),
playlist_state_changed = Marshal.GetFunctionPointerForDelegate(_playlistStateChangedDelegate),
playlist_update_in_progress = Marshal.GetFunctionPointerForDelegate(_playlistUpdateInProgressDelegate),
playlist_metadata_updated = Marshal.GetFunctionPointerForDelegate(_playlistMetadataUpdatedDelegate),
track_created_changed = Marshal.GetFunctionPointerForDelegate(_trackCreatedChangedDelegate),
track_seen_changed = Marshal.GetFunctionPointerForDelegate(_trackSeenChangedDelegate),
description_changed = Marshal.GetFunctionPointerForDelegate(_descriptionChangedDelegate),
image_changed = Marshal.GetFunctionPointerForDelegate(_imageChangedDelegate),
track_message_changed = Marshal.GetFunctionPointerForDelegate(_trackMessageChangedDelegate),
subscribers_changed = Marshal.GetFunctionPointerForDelegate(_subscribersChangedDelegate)
};
_callbacksPtr = Marshal.AllocHGlobal(Marshal.SizeOf((object) callbacks));
Marshal.StructureToPtr(callbacks, _callbacksPtr, true);
libspotify.sp_playlist_add_callbacks(PlaylistPtr, _callbacksPtr, IntPtr.Zero);
}