UDP\u3092\u4f7f\u3063\u305f\u30c6\u30b9\u30c8\u30d7\u30ed\u30b0\u30e9\u30e0\u3002<\/p>\n
using System;\r\nusing System.Text;\r\nusing System.Linq;\r\nusing System.Collections.Generic;\r\nusing System.Windows.Forms;\r\nusing System.Net;\r\nusing System.Net.Sockets;\r\n\r\nnamespace TestChat\r\n{\r\n public partial class Form1 : Form\r\n {\r\n public Form1()\r\n {\r\n InitializeComponent();\r\n\r\n StartReceive();\r\n button1.Click += new EventHandler(SendMessage);\r\n }\r\n\r\n public class UdpState\r\n {\r\n public UdpClient UdpClient;\r\n public IPEndPoint IPEndPoint;\r\n public UdpState(UdpClient udpClient, IPEndPoint endPoint)\r\n {\r\n UdpClient = udpClient;\r\n IPEndPoint = endPoint;\r\n }\r\n }\r\n\r\n public class Message\r\n {\r\n private List<string> TextList = new List<string>();\r\n private static Message Instance = null;\r\n\r\n public static Message GetInstance()\r\n {\r\n if(Instance == null)\r\n {\r\n Instance = new Message();\r\n }\r\n return Instance;\r\n }\r\n\r\n public void SetMessage(string text)\r\n {\r\n TextList.Add(text);\r\n }\r\n\r\n public string GetMessage()\r\n {\r\n return string.Join(\"\\r\\n\", TextList.ToArray().Reverse());\r\n }\r\n\r\n }\r\n\r\n private void StartReceive()\r\n {\r\n IPEndPoint endPoint = new IPEndPoint(IPAddress.Any, 2002);\r\n UdpClient udpClient = new UdpClient(endPoint);\r\n udpClient.BeginReceive(ReceiveCallback, new UdpState(udpClient, endPoint));\r\n }\r\n\r\n private void ReceiveCallback(IAsyncResult ar)\r\n {\r\n UdpClient udpClient = ((UdpState)ar.AsyncState).UdpClient;\r\n IPEndPoint endPoint = ((UdpState)ar.AsyncState).IPEndPoint;\r\n\r\n byte[] receiveByte = udpClient.EndReceive(ar,ref endPoint);\r\n string receiveString = Encoding.UTF8.GetString(receiveByte);\r\n textBox1.BeginInvoke(new Action<string>(ShowReceive), receiveString);\r\n\r\n udpClient.BeginReceive(ReceiveCallback, new UdpState(udpClient, endPoint));\r\n }\r\n\r\n private void ShowReceive(string s)\r\n {\r\n Message message = Message.GetInstance();\r\n message.SetMessage(s);\r\n textBox1.Text = message.GetMessage();\r\n }\r\n\r\n private async void SendMessage(object sender, EventArgs e)\r\n {\r\n UdpClient udpClient = new UdpClient();\r\n udpClient.Connect(new IPEndPoint(IPAddress.Parse(\"192.168.11.18\"), 2002));\r\n\r\n byte[] sendByte = Encoding.UTF8.GetBytes(textBox2.Text);\r\n await udpClient.SendAsync(sendByte, sendByte.Length);\r\n udpClient.Close();\r\n }\r\n }\r\n}\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"UDP\u3092\u4f7f\u3063\u305f\u30c6\u30b9\u30c8\u30d7\u30ed\u30b0\u30e9\u30e0\u3002 using System; using System.Text; using System.Linq; using System.Collections.Generic; using S … <\/p>\n