Websockets消息未发送

Question

This is a Windows Media Player C# code I'm working on, that sends a TCP WebSocket message back to the client saying that the mp3 audio is still playing.

I'm using axWindowsMediaPlayer1.StatusChange , and the StatusChange triggers the message accordingly it seems, but even though I can receive messages from the client in my WMP C# application.

I can't figure out why it won't send the var message_back = "Audio still Playing..."; back to the client.

private void Form1_Load(object sender, EventArgs e)
{
    lblMessage.Text = "";
    axWindowsMediaPlayer1.URL = @"C:\Audio\song1.MP3";
    axWindowsMediaPlayer1.Ctlcontrols.stop();

    this.axWindowsMediaPlayer1.StatusChange += new EventHandler(axWindowsMediaPlayer1_StatusChange);

    this.axWindowsMediaPlayer1.StatusChange += new EventHandler(serverStartup);
}

public void axWindowsMediaPlayer1_StatusChange(object sender, EventArgs e)
{
    if (axWindowsMediaPlayer1.status == "Finished")
    {
        lblMessage.Text = "CONTINUE PLAYING...";
        axWindowsMediaPlayer1.Ctlcontrols.play();
    }
}

public void serverStartup(object sender, EventArgs e)
{
    FleckLog.Level = LogLevel.Debug;
    var allSockets = new List<IWebSocketConnection>();
    var server = new WebSocketServer("ws://localhost:8181");

    server.Start(socket =>
    {
        socket.OnOpen = () =>
        {
            allSockets.Add(socket);
        };

        socket.OnClose = () =>
        {                     
            allSockets.Remove(socket);
        };

        socket.OnMessage = message =>
        {
            allSockets.ToList().ForEach(s => s.Send("Echo: " + message));    
        };
    });

    if (axWindowsMediaPlayer1.status == "Finished")
    {
        var message_back = "Audio still Playing...";
        foreach (var socket in allSockets.ToList())
        {
            socket.Send(message_back);
        }

        // I tried using this line bellow, but it won't work either.
        //allSockets.ToList().ForEach(s => s.Send("Echo: " + message_back));
    }
}

Answer 1

I'm guessing quite a bit here, however, assuming your axWindowsMediaPlayer1_StatusChange is being called - add your message sender in there:

// made this global for simplicity...
static List<IWebSocketConnection> allSockets;
allSockets = new List<IWebSocketConnection>();

public void axWindowsMediaPlayer1_StatusChange(object sender, EventArgs e)
{
    if (axWindowsMediaPlayer1.status == "Finished")
    {
        // send message...
        var message_back = "Starting again...";
        foreach (var socket in allSockets.ToList())
        {
            socket.Send(message_back);
        }

        // I assume this restarts playback...
        lblMessage.Text = "CONTINUE PLAYING...";
        axWindowsMediaPlayer1.Ctlcontrols.play();
    }

}