using System;
using System.Windows.Forms;
using System.Net.Sockets;
using System.Threading;
using System.Net;

namespace Modbus_TCP_Client
{
    public partial class Form1 : Form
    {
        public Socket newclient;
        public bool Connected;
        public Thread myThread;
        public delegate void MyInvoke(string str);
        public Form1()
        {
            InitializeComponent();
        }

        private void exit_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        public void Connect()
        {
            byte[] data = new byte[1024];

            string ipadd = serverIP.Text.Trim();//將伺服器IP地址存放在字串 ipadd中
            int port = Convert.ToInt32(serverPort.Text.Trim());//將埠號強制為32位整型，存放在port中

            //建立一個套接字 

            IPEndPoint ie = new IPEndPoint(IPAddress.Parse(ipadd), port);
            newclient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);


            //將套接字與遠端伺服器地址相連
            try
            {
                newclient.Connect(ie);
                connect.Enabled = false;//使連線按鈕變成虛的，無法點選
                Connected = true;

            }
            catch (SocketException e)
            {
                MessageBox.Show("連線伺服器失敗  " + e.Message);
                return;
            }

            ThreadStart myThreaddelegate = new ThreadStart(ReceiveMsg);
            myThread = new Thread(myThreaddelegate);
            myThread.Start();
            tmSend.Enabled = true;//增加定時傳送需要將此功能開啟

        }

        private void connect_Click_1(object sender, EventArgs e)
        {
            Connect();
        }
    }
}