public IAsyncResult BeginLoadImage(Session session, AsyncCallback userCallback, object state)
{
byte[] imageId = new byte[20];
bool hasImage = LibSpotify.sp_playlist_get_image_r(Handle, imageId);
if (!hasImage)
{
AsyncLoadImageResult result = new AsyncLoadImageResult(userCallback, state);
result.CompletedSynchronously = true;
result.SetCallbackComplete();
result.SetCompleted(Error.Ok);
return(result);
}
IntPtr p = System.Runtime.InteropServices.Marshal.AllocHGlobal(imageId.Length);
try
{
System.Runtime.InteropServices.Marshal.Copy(imageId, 0, p, imageId.Length);
return(ImageLoader.Begin((ptr, size) => { return ptr; }, p, session, ImageSize.Normal, userCallback, state));
}
finally
{
System.Runtime.InteropServices.Marshal.FreeHGlobal(p);
}
}