Передача изображения от сервера к клиенту - C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.IO;
using System.Net;
using System.Collections;
using System.Net.Sockets;
using System.Threading;
using System.Drawing;
using System.Drawing.Imaging;
using System.Diagnostics;
using System.Runtime.Serialization.Formatters.Binary;
 
namespace Broadcast_Server
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public SynchronizationContext uiContext;
        public MainWindow()
        {
            InitializeComponent();
            uiContext = SynchronizationContext.Current;
            Accept();     
        }
        private Bitmap TakeScreenShot(System.Windows.Forms.Screen currentScreen)
        {
            Bitmap bmpScreenShot = new Bitmap(currentScreen.Bounds.Width, currentScreen.Bounds.Height,
            System.Drawing.Imaging.PixelFormat.Format32bppArgb);
 
            Graphics gScreenShot = Graphics.FromImage(bmpScreenShot);
 
            gScreenShot.CopyFromScreen(currentScreen.Bounds.X, currentScreen.Bounds.Y, 0, 0, currentScreen.Bounds.Size, 
                CopyPixelOperation.SourceCopy);
            return bmpScreenShot;
        }
        private async void Receive(Socket handler)
        {
            await Task.Run(() =>
            {
                try
                {               
                    string client = null;
                    string data = null;
                    byte[] bytes = new byte[1024];
                    // Получим от клиента DNS-имя хоста.
                    // Метод Receive получает данные от сокета и заполняет массив байтов, переданный в качестве аргумента
                    int bytesRec = handler.Receive(bytes); // Возвращает фактически считанное число байтов
                    client = Encoding.Default.GetString(bytes, 0, bytesRec); // конвертируем массив байтов в строку
                    client += "(" + handler.RemoteEndPoint.ToString() + ")";
                    while (true)
                    {
                        Bitmap bmp = TakeScreenShot(System.Windows.Forms.Screen.PrimaryScreen);
                        MemoryStream memstream = new MemoryStream();
                        bmp.Save(memstream, ImageFormat.Bmp);
                        byte[] bitmapData = memstream.ToArray();
                        if (bitmapData.Length > 1)
                        {
                            MessageBox.Show(bitmapData.Length + "_Сервер");
                            handler.Send(BitConverter.GetBytes(bitmapData.Length));
                            handler.Receive(bytes);
                            handler.Send(bitmapData);
                            Thread.Sleep(800);
                            memstream.Dispose();
                        }
 
                    }
                    string theReply = "Я завершаю обработку сообщений";
                    byte[] msg = Encoding.Default.GetBytes(theReply); // конвертируем строку в массив байтов
                    handler.Send(msg); // отправляем клиенту сообщение
                    handler.Shutdown(SocketShutdown.Both); // Блокируем передачу и получение данных для объекта Socket.
                    handler.Close(); // закрываем сокет
                }
                catch (Exception ex)
                {
                    MessageBox.Show("Сервер: " + ex.Message);
                }
            });
        }
 
       private async void Accept()
        {
            await Task.Run(() =>
            {
                try
                {
                    IPEndPoint ipEndPoint = new IPEndPoint(IPAddress.Any, 49152);
                    Socket sListener = new Socket(AddressFamily.InterNetwork , SocketType.Stream , ProtocolType.Tcp );                 
                    sListener.Bind(ipEndPoint);                   
                    sListener.Listen(10);
                    while (true)
                    {                       
                        Socket handler = sListener.Accept();                                           
                        Receive(handler);
                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show("Сервер: " + ex.Message);
                }
            });         
        }
 
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Net;
using System.IO;
using System.Net.Sockets;
using System.Windows.Shapes;
using System.Windows.Threading;
using System.Threading;
using System.Collections;
using System.Diagnostics;
using System.Drawing;
using System.Runtime.Serialization.Formatters.Binary;
 
namespace Broadcast_Client
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        string ip = null;
        IPHostEntry ipHost;
        IPAddress ipAddr;
        IPEndPoint ipEndPoint;
        Socket sock;
        public SynchronizationContext uiContext;
        public MainWindow()
        {
            InitializeComponent();
        }
        private async void Connect()
        {
            await Task.Run(() =>
            {
                try
                {
                    ipAddr = IPAddress.Parse(ip);
                    ipEndPoint = new IPEndPoint(ipAddr, 49152);
                    sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                    sock.Connect(ipEndPoint);
                    byte[] msg = Encoding.Default.GetBytes(Dns.GetHostName());
                    int bytesSent = sock.Send(msg);
                    MessageBox.Show("Клиент " + Dns.GetHostName() + " установил соединение с " + sock.RemoteEndPoint.ToString());
                    while (true)
                    {
                        byte[] data = new byte[1024];
                        sock.Receive(data);
                        MemoryStream memstream = new MemoryStream(data);
                        BitmapImage bi = new BitmapImage();
                        bi.BeginInit();
                        bi.StreamSource = memstream;
                        bi.EndInit();
                        Dispatcher.Invoke(DispatcherPriority.Normal,
                                    (ThreadStart)delegate
                        {
                           pb.Source = bi;
                        });
                        
                    }
                }
                catch (Exception ex)
                {
                    MessageBox.Show("Клиент: " + ex.Message);
                }
            });
        }
 
        private void Connect_Click(object sender, RoutedEventArgs e)
        {
            ip = ip_address.Text;
            Connect();
        }
 
    }
}