BiliRanking.TaskbarProgress.SetState C# (CSharp) Метод

        public static void SetState(IntPtr windowHandle, TaskbarStates taskbarState)
        {
            if (taskbarSupported) taskbarInstance.SetProgressState(windowHandle, taskbarState);
        }

        private async void buttonGen_Click(object sender, EventArgs e)
        {
            Log.Info("开始批量获取");
            TaskbarProgress.SetState(this.Handle, TaskbarProgress.TaskbarStates.Indeterminate);
            List <string>            lines = Regex.Split(textBoxAV.Text, "\r\n|\r|\n").ToList <string>();
            List <BiliInterfaceInfo> ll    = new List <BiliInterfaceInfo>();
            string failedAVs = "";
            var    avs       = from s in lines where s != "" select s;
            //IEnumerable<Task<BiliInterfaceInfo>> llasync =
            //    from s in lines where s != "" select BiliInterface.GetInfoHTaskAsync(s);
            //Task<BiliInterfaceInfo>[] lltasks = llasync.ToArray();
            //BiliInterfaceInfo[] lls = await Task.WhenAll(lltasks);
            Stopwatch sw = new Stopwatch(); sw.Restart();

            BiliInterfaceInfo[] lls = await concurrentAsync(
                100,
                avs,
                new Func <string, ScoreType, Task <BiliInterfaceInfo> >(BiliInterface.GetInfoTaskAsync),
                ScoreType.Guichu);

            Log.Info($"获取用时：{sw.ElapsedMilliseconds}ms"); sw.Stop();
            Log.Info("正在排序");
            foreach (BiliInterfaceInfo info in lls)
            {
                if (info.pic != null)
                {
                    ll.Add(info);
                }
                else
                {
                    failedAVs += info.avnum + ";";
                }
            }
            ll.Sort(sortt);
            for (int i = 1; i <= ll.Count; i++)
            {
                ll[i - 1].Fpaiming = i;
            }
            dataGridViewRAW.DataSource = ll;
            if (failedAVs != "")
            {
                Log.Error("注意！下列视频数据未正确获取！\r\n" + failedAVs);
            }
            textBoxOut.Text = await BiliInterface.GetCsvInfosAsync(ll);

            TaskbarProgress.SetState(this.Handle, TaskbarProgress.TaskbarStates.NoProgress);
            Log.Info("批量获取完成");
        }