C#聊天程序

C#聊天程序(7)         Text = "WinTalk";

        this.ActiveControl = sendText;    
    }   

    // When the app closes, dispose of the talker object
    protected override void OnClosed(EventArgs e){
        if(talker!=null){
            // remove our notification handler
            talker.Notifications -= new
                Talker.NotificationCallback(HandleTalkerNotifications);
           
            talker.Dispose();
        }
        base.OnClosed(e);
    }
   
    // Handle notifications from the talker object
    private void HandleTalkerNotifications(
        Talker.Notification notify, Object data){
        switch(notify){
        case Talker.Notification.Initialized:
            break;
        // Respond to status changes
        case Talker.Notification.StatusChange:
            Talker.Status status = (Talker.Status)data;
            statusText.Text = String.Format("Status: {0}", status);
            if(status == Talker.Status.Connected){