C# 热敏打印机 Socket 网络链接 打印 图片 （二）

 IPAddress ip = IPAddress.Parse("192.168.1.212");
             IPEndPoint iport = new IPEndPoint(ip, );//9100为小票打印机指定端口
             Socket soc = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
             soc.Connect(iport);
             bitmap = new Bitmap(@"D:\300X200.bmp");
             soc.Send(bmpToByte(bitmap));
             soc.Close();

 public static byte[] bmpToByte(Bitmap bmp)
         {
             int h = bmp.Height /  + ;
             int w = bmp.Width;
             byte[][] all = new byte[ +  * h + h * w][];

             all[] = new byte[] { 0x1B, 0x33, 0x00 };

             Color pixelColor;
             // ESC * m nL nH 点阵图
             byte[] escBmp = new byte[] { 0x1B, 0x2A, 0x21, (byte)(w % ), (byte)(w / ) };

             // 每行进行打印
             for (int i = ; i < h; i++)
             {
                 all[i * (w + ) + ] = escBmp;
                 for (int j = ; j < w; j++)
                 {
                     byte[] data = new byte[] { 0x00, 0x00, 0x00 };
                     for (int k = ; k < ; k++)
                     {
                         if (((i * ) + k) < bmp.Height)
                         {
                             pixelColor = bmp.GetPixel(j, (i * ) + k);
                             if (pixelColor.R == )
                             {
                                 data[k / ] += (byte)( >> (k % ));
                             }
                         }
                     }
                     all[i * (w + ) + j + ] = data;
                 }
                 //换行
                 all[(i + ) * (w + )] = PrinterCmdUtils.nextLine();
             }
             all[h * (w + ) + ] = PrinterCmdUtils.nextLine();

             return byteMerger(all);
         }

 public static byte[] byteMerger(byte[][] byteList)
         {
             int Length = ;
             for (int i = ; i < byteList.Length; i++)
             {
                 Length += byteList[i].Length;
             }
             byte[] result = new byte[Length];

             int index = ;
             for (int i = ; i < byteList.Length; i++)
             {
                 byte[] nowByte = byteList[i];
                 for (int k = ; k < byteList[i].Length; k++)
                 {
                     result[index] = nowByte[k];
                     index++;
                 }
             }
             return result;
         }

转自：http://www.cnblogs.com/rinack/p/4838963.html