private void GetSubscribers()
{
lock (Spotify.Mutex)
{
var subscribersPtr = Spotify.sp_playlist_subscribers(Handle);
var subscribers = (Spotify.SpotifySubscribers)Marshal.PtrToStructure(subscribersPtr, typeof(Spotify.SpotifySubscribers));
_subscribers.Clear();
if (subscribers.Count > 0)
{
var arrayPtr = IntPtr.Add(subscribersPtr, sizeof(uint));
var arrayPtrs = new IntPtr[subscribers.Count];
Marshal.Copy(arrayPtr, arrayPtrs, 0, arrayPtrs.Length);
for (int i = 0; i < arrayPtrs.Length; i++)
{
string userName = Spotify.GetString(arrayPtrs[i], string.Empty);
if (!string.IsNullOrEmpty(userName))
{
_subscribers.Add(userName);
}
}
}
Spotify.sp_playlist_subscribers_free(subscribersPtr);
}
}
public override string ToString()
{
if (IsInvalid)
{
return(string.Empty);
}
IntPtr bufferPtr = IntPtr.Zero;
try
{
int size = Spotify.STRINGBUFFER_SIZE;
bufferPtr = Marshal.AllocHGlobal(size);
lock (Spotify.Mutex)
{
Spotify.sp_link_as_string(Handle, bufferPtr, size);
}
return(Spotify.GetString(bufferPtr, string.Empty));
}
finally
{
try
{
Marshal.FreeHGlobal(bufferPtr);
}
catch
{
}
}
}
private void OnDescriptionChangedCallback(IntPtr playlistPtr, IntPtr descptr, IntPtr userdataptr)
{
if (playlistPtr != _playlist.Handle)
{
return;
}
string description = Spotify.GetString(descptr, string.Empty);
_playlist.QueueThis(() => _playlist.OnDescriptionChanged(new DescriptionEventArgs(description)));
}
private string GetFolderName()
{
IntPtr ptr = IntPtr.Zero;
try
{
int index = _container.Playlists.IndexOf(this);
int bufferSize = Spotify.STRINGBUFFER_SIZE;
Error error;
lock (Spotify.Mutex)
{
ptr = Marshal.AllocHGlobal(bufferSize);
error = Spotify.sp_playlistcontainer_playlist_folder_name(_container.GetHandle(), index, ptr, bufferSize);
}
if (error == Error.OK)
{
return(Spotify.GetString(ptr, "Folder"));
}
return(error.GetMessage());
}
catch
{
return("Folder");
}
finally
{
if (ptr != IntPtr.Zero)
{
Marshal.FreeHGlobal(ptr);
}
}
}