C# 应用 - 视频流在第一次尝试时不启动

问：

我的 C# 应用程序以最小化方式启动，并在发生特定事件时显示网络摄像头的视频流 5 秒钟。之后，它再次最小化。这效果很好，但仅限于第 2 个事件。在第一次调用时，仅显示一个空窗体。 是否有可以添加 videoSourcePlayer1.Show（） 的事件，以便在 1 事件中也显示某些内容？它在Form1_Shown事件中不执行任何操作。

我的代码：

    ...
    private readonly UdpClient udp = new UdpClient(port);
    public IntPtr myHandle;

    public void wait(int milliseconds)
    {
      ...
    }

    private void StartListening()
    {
        this.udp.BeginReceive(Receive, new object());
    }

    private void Receive(IAsyncResult ar)
    {
        IPEndPoint ip = new IPEndPoint(IPAddress.Parse(ip), port);
        byte[] bytes = udp.EndReceive(ar, ref ip);
        string message = Encoding.ASCII.GetString(bytes);
        if (message == "ON")
        {
            ShowWindow(myHandle, SW_RESTORE);
            Thread.Sleep(50);
            SetForegroundWindow(myHandle);
            wait(5000);
            ShowWindow(myHandle, SW_SHOWMINIMIZED);
        }
        StartListening();
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        myHandle = this.Handle;
        videoSourcePlayer1.VideoSource = new MJPEGStream("http://ip/video.mjpg");
        videoSourcePlayer1.Start();
        this.WindowState = FormWindowState.Minimized;
        StartListening();
    }


    private void Form1_Resize(object sender, EventArgs e)
    {
        if (this.WindowState == FormWindowState.Minimized)
        {
            Hide();
            notifyIcon1.Visible = true;
            videoSourcePlayer1.Hide();
        }
        if (this.WindowState == FormWindowState.Normal)
        {
            Show();
            this.WindowState = FormWindowState.Normal;
            notifyIcon1.Visible = false;
            videoSourcePlayer1.Show();
        }
    }

    private void Form1_FormClosing(object sender, FormClosingEventArgs e)
    {
        videoSourcePlayer1.Stop();
    }

    private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)
    {
        Show();
        this.WindowState = FormWindowState.Normal;
        notifyIcon1.Visible = false;
    }

}

我能做些什么？