C# 如何为调用创建窗口句柄？

我正试图用youtube下身份验证用户的播放列表名称填充一个复选框列表clbWiedergabelisten。这是我的密码

private async Task RunAbrufen()
{

    UserCredential credential;
    using (var stream = new FileStream("client_secrets.json", FileMode.Open, FileAccess.Read))
    {
        credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
            GoogleClientSecrets.Load(stream).Secrets,
            // This OAuth 2.0 access scope allows for read-only access to the authenticated 
            // user's account, but not other types of account access.
            new[] { YouTubeService.Scope.YoutubeReadonly },
            "user",
            CancellationToken.None,
            new FileDataStore(this.GetType().ToString())
        );
    }
    var youtubeService = new YouTubeService(new BaseClientService.Initializer()
    {
        HttpClientInitializer = credential,
        ApplicationName = this.GetType().ToString()
    });


    var playlistListRequest = youtubeService.Playlists.List("snippet");
    playlistListRequest.Mine = true;
    // Retrieve the contentDetails part of the playlist resource for the authenticated user's playlist.
    var playlistListResponse = await playlistListRequest.ExecuteAsync();
    this.Invoke((MethodInvoker)delegate
    {
        clbWiedergabelisten.Items.Clear();
    });
    foreach (var playlist in playlistListResponse.Items)
    {
        Console.WriteLine(playlist.Snippet.Title);
        this.Invoke((MethodInvoker)delegate
        {
            clbWiedergabelisten.Items.Add(playlist.Snippet.Title);
        });
    }
}

它是由

try
{
    await new Form1().RunAbrufen();
}
catch (Exception ex)
{
        MessageBox.Show("Error: " + ex.Message);
}

---

但每次它都说必须先创建一个窗口句柄，然后才能使用invoke。如何做到这一点？

请输入等待新表单1的代码，这是您的问题。您的表单启动不正确。您将如何启动它？我使用了wait RunAbrufen；它成功了。那么代码在Form1中？那你为什么在哪里做新表格1？