【C#】打印机ZPL指令打印图片，将图片转成十六进制指令

代码：

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Imaging;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;namespace Share
{/// <summary>/// 斑马工具类,把图像转换成斑马打印机的命令/// </summary>public class ZebraUnity{#region 定义私有字段/// <summary>/// 线程锁，防止多线程调用。/// </summary>private static object SyncRoot = new object();/// <summary>/// ZPL压缩字典/// </summary>private static List<KeyValuePair<char, int>> compressDictionary = new List<KeyValuePair<char, int>>();#endregion#region 构造方法static ZebraUnity(){InitCompressCode();}#endregion#region 定义属性/// <summary>/// 图像的二进制数据/// </summary>public static byte[] GraphBuffer { get; set; }/// <summary>/// 图像的宽度/// </summary>private static int GraphWidth { get; set; }/// <summary>/// 图像的高度/// </summary>private static int GraphHeight { get; set; }private static int RowSize{get{return (((GraphWidth) + 31) >> 5) << 2;}}/// <summary>/// 每行的字节数/// </summary>private static int RowRealBytesCount{get{if ((GraphWidth % 8) > 0){return GraphWidth / 8 + 1;}else{return GraphWidth / 8;}}}#endregion#region 位图转斑马指令字符串/// <summary>/// 位图转斑马指令字符串/// </summary>/// <param name="bitmap">位图数据</param>/// <param name="totalBytes">总共的字节数</param>/// <param name="rowBytes">每行的字节数</param>/// <returns>斑马ZPL 2命令</returns>public static string BmpToZpl(byte[] bitmap, out int totalBytes, out int rowBytes){try{GraphBuffer = bitmap;byte[] bmpData = getBitmapData();string textHex = BitConverter.ToString(bmpData).Replace("-", string.Empty);string textBitmap = CompressLZ77(textHex);totalBytes = GraphHeight * RowRealBytesCount;rowBytes = RowRealBytesCount;return textBitmap;}catch (Exception ex){throw ex;}}/// <summary>/// 位图转ZPL指令/// </summary>/// <param name="bitmap">位图</param>/// <param name="totalBytes">返回参数总共字节数</param>/// <param name="rowBytes">返回参数每行的字节数</param>/// <returns>ZPL命令</returns>public static string BmpToZpl(Image bitmap, out int totalBytes, out int rowBytes){using (MemoryStream stream = new MemoryStream()){bitmap.Save(stream, ImageFormat.Bmp);return BmpToZpl(stream.ToArray(), out totalBytes, out rowBytes);}}/// <summary>/// 根据图片生成图片的ASCII 十六进制/// </summary>/// <param name="sourceBmp">原始图片</param>/// <param name="totalBytes">总共字节数</param>/// <param name="rowBytes">每行的字节数</param>/// <returns>ASCII 十六进制</returns>public static string BitmapToHex(Image sourceBmp, out int totalBytes, out int rowBytes){// 转成单色图Bitmap grayBmp = ConvertToGrayscale(sourceBmp as Bitmap);// 锁定位图数据    Rectangle rect = new Rectangle(0, 0, grayBmp.Width, grayBmp.Height);System.Drawing.Imaging.BitmapData bmpData = grayBmp.LockBits(rect, System.Drawing.Imaging.ImageLockMode.ReadWrite, grayBmp.PixelFormat);// 获取位图数据第一行的起始地址     IntPtr ptr = bmpData.Scan0;// 定义数组以存放位图的字节流数据      // 处理像素宽对应的字节数，如不为8的倍数，则对最后一个字节补0    int width = (int)Math.Ceiling(grayBmp.Width / 8.0);// 获取位图实际的字节宽，这个值因为要考虑4的倍数关系，可能大于width  int stride = Math.Abs(bmpData.Stride);// 计算位图数据实际所占的字节数，并定义数组      int bitmapDataLength = stride * grayBmp.Height;byte[] ImgData = new byte[bitmapDataLength];// 从位图文件复制图像数据到数组，从实际图像数据的第一行开始；因ptr指针而无需再考虑行倒序存储的处理          System.Runtime.InteropServices.Marshal.Copy(ptr, ImgData, 0, bitmapDataLength);// 计算异或操作数，以处理包含图像数据但又有补0操作的那个字节         byte mask = 0xFF;// 计算这个字节补0的个数       //int offset = 8 * width - grayBmp.Width;int offset = 8 - (grayBmp.Width % 8);//offset %= 8;offset = offset % 8;// 按补0个数对0xFF做相应位数的左移位操作           mask <<= (byte)offset;// 图像反色处理        for (int j = 0; j < grayBmp.Height; j++){for (int i = 0; i < stride; i++){if (i < width - 1) //无补0的图像数据{ImgData[j * stride + i] ^= 0xFF;}else if (i == width - 1) //有像素的最后一个字节，可能有补0   {ImgData[j * stride + i] ^= mask;}else  //为满足行字节宽为4的倍数而最后补的字节        {//ImgData[j * stride + i] = 0x00;ImgData[j * stride + i] ^= 0x00;}}}// 将位图数据转换为16进制的ASCII字符          string zplString = BitConverter.ToString(ImgData);zplString = CompressLZ77(zplString.Replace("-", string.Empty));totalBytes = bitmapDataLength;rowBytes = stride;return zplString;}#endregion#region 获取单色位图数据/// <summary>/// 获取单色位图数据/// </summary>/// <param name="pimage"></param>/// <returns></returns>private static Bitmap ConvertToGrayscale(Bitmap pimage){Bitmap source = null;// If original bitmap is not already in 32 BPP, ARGB format, then convertif (pimage.PixelFormat != PixelFormat.Format32bppArgb){source = new Bitmap(pimage.Width, pimage.Height, PixelFormat.Format32bppArgb);source.SetResolution(pimage.HorizontalResolution, pimage.VerticalResolution);using (Graphics g = Graphics.FromImage(source)){g.DrawImageUnscaled(pimage, 0, 0);}}else{source = pimage;}// Lock source bitmap in memoryBitmapData sourceData = source.LockBits(new Rectangle(0, 0, source.Width, source.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);// Copy image data to binary arrayint imageSize = sourceData.Stride * sourceData.Height;byte[] sourceBuffer = new byte[imageSize];Marshal.Copy(sourceData.Scan0, sourceBuffer, 0, imageSize);// Unlock source bitmapsource.UnlockBits(sourceData);// Create destination bitmapBitmap destination = new Bitmap(source.Width, source.Height, PixelFormat.Format1bppIndexed);// Lock destination bitmap in memoryBitmapData destinationData = destination.LockBits(new Rectangle(0, 0, destination.Width, destination.Height), ImageLockMode.WriteOnly, PixelFormat.Format1bppIndexed);// Create destination bufferimageSize = destinationData.Stride * destinationData.Height;byte[] destinationBuffer = new byte[imageSize];int sourceIndex = 0;int destinationIndex = 0;int pixelTotal = 0;byte destinationValue = 0;int pixelValue = 128;int height = source.Height;int width = source.Width;int threshold = 500;// Iterate linesfor (int y = 0; y < height; y++){sourceIndex = y * sourceData.Stride;destinationIndex = y * destinationData.Stride;destinationValue = 0;pixelValue = 128;// Iterate pixelsfor (int x = 0; x < width; x++){// Compute pixel brightness (i.e. total of Red, Green, and Blue values)pixelTotal = sourceBuffer[sourceIndex + 1] + sourceBuffer[sourceIndex + 2] + sourceBuffer[sourceIndex + 3];if (pixelTotal > threshold){destinationValue += (byte)pixelValue;}if (pixelValue == 1){destinationBuffer[destinationIndex] = destinationValue;destinationIndex++;destinationValue = 0;pixelValue = 128;}else{pixelValue >>= 1;}sourceIndex += 4;}if (pixelValue != 128){destinationBuffer[destinationIndex] = destinationValue;}}// Copy binary image data to destination bitmapMarshal.Copy(destinationBuffer, 0, destinationData.Scan0, imageSize);// Unlock destination bitmapdestination.UnlockBits(destinationData);// Dispose of source if not originally supplied bitmapif (source != pimage){source.Dispose();}// Returnreturn destination;}/// <summary>/// 获取单色位图数据(1bpp)，不含文件头、信息头、调色板三类数据。/// </summary>/// <returns></returns>private static byte[] getBitmapData(){MemoryStream srcStream = new MemoryStream();MemoryStream dstStream = new MemoryStream();Bitmap srcBmp = null;Bitmap dstBmp = null;byte[] srcBuffer = null;byte[] dstBuffer = null;byte[] result = null;try{srcStream = new MemoryStream(GraphBuffer);srcBmp = Bitmap.FromStream(srcStream) as Bitmap;srcBuffer = srcStream.ToArray();GraphWidth = srcBmp.Width;GraphHeight = srcBmp.Height;//dstBmp = srcBmp.Clone(new Rectangle(0, 0, srcBmp.Width, srcBmp.Height), PixelFormat.Format1bppIndexed);dstBmp = ConvertToGrayscale(srcBmp);dstBmp.Save(dstStream, ImageFormat.Bmp);dstBuffer = dstStream.ToArray();result = dstBuffer;int bfOffBits = BitConverter.ToInt32(dstBuffer, 10);result = new byte[GraphHeight * RowRealBytesCount];读取时需要反向读取每行字节实现上下翻转的效果，打印机打印顺序需要这样读取。for (int i = 0; i < GraphHeight; i++){int sindex = bfOffBits + (GraphHeight - 1 - i) * RowSize;int dindex = i * RowRealBytesCount;Array.Copy(dstBuffer, sindex, result, dindex, RowRealBytesCount);}for (int i = 0; i < result.Length; i++){result[i] ^= 0xFF;}}catch (Exception ex){throw new Exception(ex.Message, ex);}finally{if (srcStream != null){srcStream.Dispose();srcStream = null;}if (dstStream != null){dstStream.Dispose();dstStream = null;}if (srcBmp != null){srcBmp.Dispose();srcBmp = null;}if (dstBmp != null){dstBmp.Dispose();dstBmp = null;}}return result;}#endregion#region LZ77图像字节流压缩方法private static string CompressLZ77(string text){//将转成16进制的文本进行压缩string result = string.Empty;char[] arrChar = text.ToCharArray();int count = 1;for (int i = 1; i < text.Length; i++){if (arrChar[i - 1] == arrChar[i]){count++;}else{result += convertNumber(count) + arrChar[i - 1];count = 1;}if (i == text.Length - 1){result += convertNumber(count) + arrChar[i];}}return result;}private static string DecompressLZ77(string text){string result = string.Empty;char[] arrChar = text.ToCharArray();int count = 0;for (int i = 0; i < arrChar.Length; i++){if (isHexChar(arrChar[i])){//十六进制值result += new string(arrChar[i], count == 0 ? 1 : count);count = 0;}else{//压缩码int value = GetCompressValue(arrChar[i]);count += value;}}return result;}private static int GetCompressValue(char c){int result = 0;for (int i = 0; i < compressDictionary.Count; i++){if (c == compressDictionary[i].Key){result = compressDictionary[i].Value;}}return result;}private static bool isHexChar(char c){return c > 47 && c < 58 || c > 64 && c < 71 || c > 96 && c < 103;}private static string convertNumber(int count){//将连续的数字转换成LZ77压缩代码，如000可用I0表示。string result = string.Empty;if (count > 1){while (count > 0){for (int i = compressDictionary.Count - 1; i >= 0; i--){if (count >= compressDictionary[i].Value){result += compressDictionary[i].Key;count -= compressDictionary[i].Value;break;}}}}return result;}private static void InitCompressCode(){//G H I J K L M N O P Q R S T U V W X Y        对应1,2,3,4……18,19。//g h i j k l m n o p q r s t u v w x y z      对应20,40,60,80……340,360,380,400。            for (int i = 0; i < 19; i++){compressDictionary.Add(new KeyValuePair<char, int> (Convert.ToChar(71 + i), i + 1 ));}for (int i = 0; i < 20; i++){compressDictionary.Add(new KeyValuePair<char, int>(Convert.ToChar(103 + i), (i + 1) * 20));}}#endregion}
}

使用：

string data = ZebraUnity.BitmapToHex(image, out int to, out int row);
string zpl = string.Format("~DGR:Temp0.GRF,{0},{1},{2}", to, row, data);
cmd.Append(zpl);cmd.AppendFormat("^FO0,0^XGR:Temp0.GRF,1,1^FS");

打印一个图片的ZPL指令：

^XA
^LH0,0^LL80^PW580
~DGR:Temp0.GRF,5120,32,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^FO30,0^XGR:Temp0.GRF,1,1^FS
^XZ

~DG指令

使用TSC TE344打印机，正常

转自：https://www.cnblogs.com/chuci/p/4462378.html

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【C#】打印机ZPL指令打印图片，将图片转成十六进制指令

代码：

使用：

打印一个图片的ZPL指令：

~DG指令

【C#】打印机ZPL指令打印图片，将图片转成十六进制指令相关推荐

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