Websockets消息不被发送

Question

这是一个Windows媒体播放器C＃代码我正在处理，它发送一个TCP WebSocket消息回客户说，MP3音频仍在播放。

我正在使用axWindowsMediaPlayer1.StatusChange，并且StatusChange会相应地触发该消息，但即使我可以从我的WMP C＃应用程序中的客户端接收消息。

我不明白为什么它不会发送var message_back = "Audio still Playing...";回到客户端。

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

我在这里猜测不少，但是，假设你axWindowsMediaPlayer1_StatusChange被称为 - 添加您的邮件发件人在那里：

// 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(); 
    } 

}