Sample program to read barcode data over TCP C#

Barcodereader.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.Drawing;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace TCPListenerTest
{
    public partial class Form1 : Form
    {

        private static TcpListener _TcpListener;
        static Int32 port = 23;
        IPAddress scannerIPAddress = IPAddress.Parse("192.168.0.100");
        private static bool _QuitProcessing = false;

        public Form1()
        {
            InitializeComponent();
        }



        private void Form1_Load(object sender, EventArgs e)
        {
            Thread thread = new Thread(ReceivePortMessages);
            thread.IsBackground = true;
            thread.Start();
        }
        


        private void ReceivePortMessages()
        {
            _TcpListener = new TcpListener(IPAddress.Any, port);

            byte[] receiveBuffer = new byte[6400];
            while (!_QuitProcessing)
            {
                int requestCount = 0;
                _TcpListener.Start();
                Console.WriteLine(" >> Listener Started");

                using (var tcpClient = _TcpListener.AcceptTcpClient())
                {
                    Console.WriteLine(" >> Accepted connection from client");

                    using (var networkStream = tcpClient.GetStream())
                    {
                        while (!_QuitProcessing)
                        {
                            try
                            {
                                requestCount = requestCount++;
                                var bytesRead = networkStream.Read(receiveBuffer, 0, (int)tcpClient.ReceiveBufferSize);
                                if (bytesRead == 0)
                                {
                                    // Read returns 0 if the client closes the connection
                                    break;
                                }

                                string dataFromClient = System.Text.Encoding.ASCII.GetString(receiveBuffer, 0, bytesRead);
                                Console.WriteLine(dataFromClient);

                            }
                            catch (Exception ex)
                            {
                                Console.WriteLine("ReceivePortMessages: " + ex.ToString());
                                break;
                            }
                        }
                    }
                    Console.WriteLine(" >> stopped read loop");
                }
                _TcpListener.Stop();
            }
        }


    }
}