teste UDP

teste_udp_2.cs

/*
 * https://social.msdn.microsoft.com/Forums/en-US/a038defe-2594-4c1a-85ef-7a98a0a409b2/can-i-call-async-methods-of-winmd-from-javascript?forum=winappswithhtml5
 * === NOTAS ===
 * Os nomes dos metodos devem estar em letra minuscula
 */

using System.IO;
using Windows.Networking.Sockets;
using Windows.Networking;
using System;
using Windows.Foundation;
using System.Runtime.InteropServices.WindowsRuntime;
using System.Threading.Tasks;
using System.Net.Sockets;
using System.Net;
using System.Net.Http;
using Windows.Storage.Streams;
using System.Text;

namespace TestePlugin
{
    public sealed class MyRuntimeComponent
    {
        // Variables Class
        private static string response;

      
        
        
        // Constructor
        public void myruntimecomponent() {}


        public static IAsyncActionWithProgress<Object> testasync()
        {
            return AsyncInfo.Run<Object>((token, result) =>
                Task.Run<Object>(async () =>
                {

                    string resposta = "Estado Inicial";
                    string message = "xxxxxxxxx";
                    int port = xxxx;
                    var socket = new DatagramSocket();

                    socket.MessageReceived += async (sender, args) =>
                    {
                        Stream streamIn = args.GetDataStream().AsStreamForRead();
                        StreamReader reader = new StreamReader(streamIn);
                        resposta = await reader.ReadLineAsync();
                    };


                    using (var stream = await socket.GetOutputStreamAsync(new HostName("255.255.255.255"), port.ToString()))
                    {
                        using (var writer = new DataWriter(stream))
                        {
                            var data = Encoding.UTF8.GetBytes(message);

                            writer.WriteBytes(data);
                            writer.StoreAsync();
                        }
                    }



                    // do this asynchronously ...
                    //return "Aqui tens a resposta";
                    Task.Delay(5000);
                    //response = "Aqui tens a resposta1";
                    response = resposta;
                    return "";
                }
            ));
        }

        public static string getmyresponse()
        {
            return response;
        }


  

        public async void Socket_MessageReceived(DatagramSocket sender, DatagramSocketMessageReceivedEventArgs args)
        {
            //Read the message that was received from the UDP echo server.
            Stream streamIn = args.GetDataStream().AsStreamForRead();
            StreamReader reader = new StreamReader(streamIn);
            string message = await reader.ReadLineAsync();

        }

    }
}