C# 熱敏印表機 Socket 網路連結 列印 圖片 （一）

標籤：data   timeout   pre   prot   ++   摘要   box   socket   ipaddr   

using System;using System.Collections.Generic;using System.Drawing;using System.Linq;using System.Text;using System.Net;using System.Net.Sockets;namespace POSPrinter{    ///   <summary>     ///   POSPrinter的摘要說明。    ///   此類處理網路列印,使用了IP連接埠.    ///   </summary>     public class NetPOSPrinter     {        string ipPort = "127.0.0.1";        public NetPOSPrinter()        {        }        public NetPOSPrinter(string IpPort)        {            this.ipPort = IpPort;//印表機連接埠         }        ///   <summary>         ///   輸出文字到印表機         ///   </summary>         ///   <param   name= "str "> 要列印的內容 </param>         public void PrintLine(string str)        {            //建立串連            IPAddress ipa = IPAddress.Parse(ipPort);            IPEndPoint ipe = new IPEndPoint(ipa, 9100);//9100為小票印表機指定連接埠            Socket soc = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);            soc.Connect(ipe);            //string str= "hello,123456789,大家好! ";            byte[] b = System.Text.Encoding.GetEncoding("GB2312").GetBytes(str);            soc.Send(b);            soc.Close();        }        public void PrintPic(Bitmap bmp)        {            //把ip和連接埠轉化為IPEndPoint執行個體            IPEndPoint ip_endpoint = new IPEndPoint(IPAddress.Parse(ipPort), 9100);            //建立一個Socket            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);            //串連到伺服器            socket.Connect(ip_endpoint);            //應對同步Connect逾時過長的辦法，猜測應該是先用非同步方式建立以個串連然後，            //確認串連是否可用，然後報錯或者關閉後，重建立立一個同步串連                                //socket.SendTimeout = 1000;            //初始化印表機，並列印            Byte[] byte_send = Encoding.GetEncoding("gb18030").GetBytes("\x1b\x40");            //發送測試資訊            socket.Send(byte_send, byte_send.Length, 0);            byte[] data = new byte[] { 0x1B, 0x33, 0x00 };            socket.Send(data, data.Length, 0);            data[0] = (byte)‘\x00‘;            data[1] = (byte)‘\x00‘;            data[2] = (byte)‘\x00‘;    // Clear to Zero.            Color pixelColor;            // ESC * m nL nH 點陣圖            byte[] escBmp = new byte[] { 0x1B, 0x2A, 0x00, 0x00, 0x00 };            escBmp[2] = (byte)‘\x21‘;            //nL, nH            escBmp[3] = (byte)(bmp.Width % 256);            escBmp[4] = (byte)(bmp.Width / 256);            // data            for (int i = 0; i < (bmp.Height / 24) + 1; i++)            {                socket.Send(escBmp, escBmp.Length, 0);                for (int j = 0; j < bmp.Width; j++)                {                    for (int k = 0; k < 24; k++)                    {                        if (((i * 24) + k) < bmp.Height)   // if within the BMP size                        {                            pixelColor = bmp.GetPixel(j, (i * 24) + k);                            if (pixelColor.R == 0)                            {                                data[k / 8] += (byte)(128 >> (k % 8));                            }                        }                    }                    socket.Send(data, 3, 0);                    data[0] = (byte)‘\x00‘;                    data[1] = (byte)‘\x00‘;                    data[2] = (byte)‘\x00‘;    // Clear to Zero.                }                                byte_send = Encoding.GetEncoding("gb18030").GetBytes("\n");                //發送測試資訊                socket.Send(byte_send, byte_send.Length, 0);            } // data            byte_send = Encoding.GetEncoding("gb18030").GetBytes("\n");            //發送測試資訊            socket.Send(byte_send, byte_send.Length, 0);            socket.Close();        }        ///   <summary>         ///   開啟錢箱         ///   </summary>         public void OpenCashBox()        {            IPAddress ipa = IPAddress.Parse(ipPort);            IPEndPoint ipe = new IPEndPoint(ipa, 9100);//9100為小票印表機指定連接埠            Socket soc = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);            soc.Connect(ipe);            char[] c = { Convert.ToChar(27), ‘p‘, Convert.ToChar(0), Convert.ToChar(60), Convert.ToChar(255) };            byte[] b = System.Text.Encoding.GetEncoding("GB2312").GetBytes(c);            soc.Send(b);            soc.Close();        }    }}

　　轉自：http://www.cnblogs.com/rinack/p/4838211.html

C# 熱敏印表機 Socket 網路連結 列印 圖片 （一）