public static IAsyncResult Begin(ImageLoad load, IntPtr p, Session session, ImageSize size,
AsyncCallback userCallback, object state)
{
AsyncLoadImageResult result = new AsyncLoadImageResult(userCallback, state);
Image image = new Image(LibSpotify.sp_image_create_r(session.Handle, load(p, size)));
result.Closure = image;
image.Loaded += result.HandleImageLoaded;
// It's possible the image loaded before we registered the result.HandleImageLoaded
if (image.IsLoaded)
{
result.CompletedSynchronously = true;
result.SetCompleted(image.Error);
}
return(result);
}
public IAsyncResult BeginLoadPortraits(Session session, AsyncCallback userCallback, object state)
{
ThrowHelper.ThrowIfNull(session, "session");
int n = LibSpotify.sp_artistbrowse_num_portraits_r(Handle);
AsyncLoadPortraitsResult result = new AsyncLoadPortraitsResult(n, userCallback, state);
result.Closure = new List <Image>();
for (int i = 0; i < n; ++i)
{
Image image = new Image(LibSpotify.sp_image_create_r(session.Handle, LibSpotify.sp_artistbrowse_portrait_r(Handle, i)));
image.Loaded += result.HandleImageLoaded;
result.Closure.Add(image);
}
if (result.CheckComplete())
{
result.CompletedSynchronously = true;
}
return(result);
}