利用标签设计软件做好模板,打印至本地文件,把其中的ZPL、EPL指令拷贝出来,替换其中动态变化的内容为变量名,做成一个模板文本,在代码中动态替换变量,再把指令输出至打印机。
ZebraPrintHelper.cs。
- using System;
- using System.Collections.Generic;
- using System.Drawing;
- using System.Drawing.Imaging;
- using System.Drawing.Printing;
- using System.IO;
- using System.IO.Ports;
- using System.Linq;
- using System.Runtime.InteropServices;
- using System.Text;
- using Microsoft.Win32.SafeHandles;
- namespace Umisky.HTServer.Util
- {
- #region 定义设备类型枚举
- public enum DeviceType
- {
- COM = 0,
- LPT = 1,
- DRV = 2
- }
- #endregion
- #region 定义打印机指令类型枚举
- public enum ProgrammingLanguage
- {
- ZPL = 0,
- EPL = 1
- }
- #endregion
- #region 定义日志类型枚举
- public enum LogType
- {
- Print = 0,
- Error = 1
- }
- #endregion
- #region 定义打印文档信息类
- [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
- public class DocInfo
- {
- [MarshalAs(UnmanagedType.LPStr)]
- public string DocName;
- [MarshalAs(UnmanagedType.LPStr)]
- public string OutputFile;
- [MarshalAs(UnmanagedType.LPStr)]
- public string DataType;
- }
- #endregion
- #region 定义图像设备信息类
- public class DeviceInfo
- {
- #region 属性说明
- /*
- ColorDepth
- 图像输出支持的颜色范围的像素深度。有效值为 1、4、8、24 和 32。默认值为 24。仅对 TIFF 呈现支持 ColorDepth,对于其他图像输出格式报表服务器将忽略此设置。
- 注意:
- 对于此版本的 SQL Server,此设置的值将被忽略,且通常将 TIFF 图像呈现为 24 位。
- Columns
- 要为报表设置的列数。此值将覆盖报表的原始设置。
- ColumnSpacing
- 要为报表设置的列间距。此值将覆盖报表的原始设置。
- DpiX
- 输出设备在 X 方向的分辨率。默认值为 96。
- DpiY
- 输出设备在 Y 方向的分辨率。默认值为 96。
- EndPage
- 要呈现的报表的最后一页。默认值为 StartPage 的值。
- MarginBottom
- 要为报表设置的下边距值,以英寸为单位。您必须包含一个整数或小数值,后跟“in”(例如,1in)。此值将覆盖报表的原始设置。
- MarginLeft
- 要为报表设置的左边距值,以英寸为单位。您必须包含一个整数或小数值,后跟“in”(例如,1in)。此值将覆盖报表的原始设置。
- MarginRight
- 要为报表设置的右边距值,以英寸为单位。您必须包含一个整数或小数值,后跟“in”(例如,1in)。此值将覆盖报表的原始设置。
- MarginTop
- 要为报表设置的上边距值,以英寸为单位。您必须包含一个整数或小数值,后跟“in”(例如,1in)。此值将覆盖报表的原始设置。
- OutputFormat
- 图形设备接口 (GDI) 支持的输出格式之一:BMP、EMF、GIF、JPEG、PNG 或 TIFF。
- PageHeight
- 要为报表设置的页高,以英寸为单位。您必须包含一个整数或小数值,后跟“in”(例如,11in)。此值将覆盖报表的原始设置。
- PageWidth
- 要为报表设置的页宽,以英寸为单位。您必须包含一个整数或小数值,后跟“in”(例如,8.5in)。此值将覆盖报表的原始设置。
- StartPage
- 要呈现的报告的第一页。值为 0 指示将呈现所有页。默认值为 1。
- */
- #endregion
- public enum GDIOutputFormat { BMP, EMF, GIF, JPEG, PNG, TIFF }
- public int ColorDepth { get; set; }
- public int Columns { get; set; }
- public int ColumnSpacing { get; set; }
- public int DpiX { get; set; }
- public int DpiY { get; set; }
- public int EndPage { get; set; }
- public int MarginBottom { get; set; }
- public int MarginLeft { get; set; }
- public int MarginRight { get; set; }
- public int MarginTop { get; set; }
- public GDIOutputFormat OutputFormat { get; set; }
- public int PageHeight { get; set; }
- public int PageWidth { get; set; }
- public int StartPage { get; set; }
- private const string xmlFormater = @"
-
{0} -
{1} -
{2} -
{3} -
{4} -
{5} -
{6} -
{7} -
{8} -
{9} -
{10} -
{11} -
{12} -
{13} - ";
- public DeviceInfo()
- {
- this.ColorDepth = 24;
- this.Columns = 0;
- this.StartPage = 1;
- this.EndPage = 1;
- }
- public string GetDeviceInfo()
- {
- string result = string.Format(xmlFormater,
- this.ColorDepth,
- this.Columns,
- this.ColumnSpacing,
- this.DpiX,
- this.DpiY,
- this.EndPage,
- this.MarginBottom,
- this.MarginLeft,
- this.MarginRight,
- this.MarginTop,
- this.OutputFormat,
- this.PageHeight,
- this.PageWidth,
- this.StartPage);
- return result;
- }
- public string GetDeviceInfoForImage()
- {
- string result = string.Format("
",{0} {1} {2} {3} {4} - this.StartPage,
- this.EndPage,
- this.OutputFormat,
- this.DpiX,
- this.DpiY);
- return result;
- }
- }
- #endregion
- #region 定义斑马打印助手类
- ///
- /// 斑马打印助手,支持LPT/COM/DRV三种模式,适用于标签、票据、条码打印。
- ///
- public static class ZebraPrintHelper
- {
- #region 定义API方法
- #region 写打印口(LPT)方法
- private const short FILE_ATTRIBUTE_NORMAL = 0x80;
- private const short INVALID_HANDLE_VALUE = -1;
- private const uint GENERIC_READ = 0x80000000;
- private const uint GENERIC_WRITE = 0x40000000;
- private const uint CREATE_NEW = 1;
- private const uint CREATE_ALWAYS = 2;
- private const uint OPEN_EXISTING = 3;
- [DllImport("kernel32.dll", SetLastError = true, CharSet = CharSet.Auto)]
- private static extern SafeFileHandle CreateFile(string strFileName,
- uint dwDesiredAccess,
- uint dwShareMode,
- IntPtr intptrSecurityAttributes,
- uint dwCreationDisposition,
- uint dwFlagsAndAttributes,
- IntPtr intptrTemplateFile);
- #endregion
- [DllImport("winspool.Drv", EntryPoint = "OpenPrinterA", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
- public static extern bool OpenPrinter([MarshalAs(UnmanagedType.LPStr)] string printerName, out IntPtr intptrPrinter, IntPtr intptrPrintDocument);
- [DllImport("winspool.Drv", EntryPoint = "ClosePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
- public static extern bool ClosePrinter(IntPtr intptrPrinter);
- [DllImport("winspool.Drv", EntryPoint = "StartDocPrinterA", SetLastError = true, CharSet = CharSet.Auto, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
- public static extern bool StartDocPrinter(IntPtr intptrPrinter, Int32 level, [In, MarshalAs(UnmanagedType.LPStruct)] DocInfo docInfo);
- [DllImport("winspool.Drv", EntryPoint = "EndDocPrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
- public static extern bool EndDocPrinter(IntPtr intptrPrinter);
- [DllImport("winspool.Drv", EntryPoint = "StartPagePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
- public static extern bool StartPagePrinter(IntPtr intptrPrinter);
- [DllImport("winspool.Drv", EntryPoint = "EndPagePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
- public static extern bool EndPagePrinter(IntPtr intptrPrinter);
- [DllImport("winspool.Drv", EntryPoint = "WritePrinter", SetLastError = true, ExactSpelling = true, CallingConvention = CallingConvention.StdCall)]
- public static extern bool WritePrinter(IntPtr intptrPrinter, IntPtr intptrBytes, Int32 count, out Int32 written);
- #endregion
- #region 定义私有字段
- ///
- /// 线程锁,防止多线程调用。
- ///
- private static object SyncRoot = new object();
- ///
- /// 字节流传递时采用的字符编码
- ///
- private static readonly Encoding TransferFormat = Encoding.GetEncoding("iso-8859-1");
- #endregion
- #region 定义属性
- public static int Port { get; set; }
- public static string PrinterName { get; set; }
- public static bool IsWriteLog { get; set; }
- public static DeviceType PrinterType { get; set; }
- public static ProgrammingLanguage PrinterProgrammingLanguage { get; set; }
- ///
- /// 日志保存目录,WEB应用注意不能放在BIN目录下。
- ///
- public static string LogsDirectory { get; set; }
- private static byte[] GraphBuffer { get; set; }
- private static int GraphWidth { get; set; }
- private static int GraphHeight { get; set; }
- private static int RowSize
- {
- get
- {
- return (((GraphWidth) + 31) >> 5) << 2;
- }
- }
- private static int RowRealBytesCount
- {
- get
- {
- if ((GraphWidth % 8) > 0)
- {
- return GraphWidth / 8 + 1;
- }
- else
- {
- return GraphWidth / 8;
- }
- }
- }
- #endregion
- #region 静态构造方法
- static ZebraPrintHelper()
- {
- GraphBuffer = new byte[0];
- IsWriteLog = false;
- LogsDirectory = "logs";
- }
- #endregion
- #region 定义发送原始数据到打印机的方法
- private static bool SendBytesToPrinter(string printerName, IntPtr intptrBytes, Int32 count)
- {
- Int32 error = 0, written = 0;
- IntPtr intptrPrinter = new IntPtr(0);
- DocInfo docInfo = new DocInfo();
- bool bSuccess = false;
- docInfo.DocName = ".NET RAW Document";
- docInfo.DataType = "RAW";
- // Open the printer.
- if (OpenPrinter(printerName.Normalize(), out intptrPrinter, IntPtr.Zero))
- {
- // Start a document.
- if (StartDocPrinter(intptrPrinter, 1, docInfo))
- {
- // Start a page.
- if (StartPagePrinter(intptrPrinter))
- {
- // Write your bytes.
- bSuccess = WritePrinter(intptrPrinter, intptrBytes, count, out written);
- EndPagePrinter(intptrPrinter);
- }
- EndDocPrinter(intptrPrinter);
- }
- ClosePrinter(intptrPrinter);
- }
- // If you did not succeed, GetLastError may give more information
- // about why not.
- if (bSuccess == false)
- {
- error = Marshal.GetLastWin32Error();
- }
- return bSuccess;
- }
- public static bool SendFileToPrinter(string printerName, string fileName)
- {
- // Open the file.
- FileStream fs = new FileStream(fileName, FileMode.Open);
- // Create a BinaryReader on the file.
- BinaryReader br = new BinaryReader(fs);
- // Dim an array of bytes big enough to hold the file's contents.
- Byte[] bytes = new Byte[fs.Length];
- bool bSuccess = false;
- // Your unmanaged pointer.
- IntPtr pUnmanagedBytes = new IntPtr(0);
- int nLength;
- nLength = Convert.ToInt32(fs.Length);
- // Read the contents of the file into the array.
- bytes = br.ReadBytes(nLength);
- // Allocate some unmanaged memory for those bytes.
- pUnmanagedBytes = Marshal.AllocCoTaskMem(nLength);
- // Copy the managed byte array into the unmanaged array.
- Marshal.Copy(bytes, 0, pUnmanagedBytes, nLength);
- // Send the unmanaged bytes to the printer.
- bSuccess = SendBytesToPrinter(printerName, pUnmanagedBytes, nLength);
- // Free the unmanaged memory that you allocated earlier.
- Marshal.FreeCoTaskMem(pUnmanagedBytes);
- return bSuccess;
- }
- public static bool SendBytesToPrinter(string printerName, byte[] bytes)
- {
- bool bSuccess = false;
- IntPtr pUnmanagedBytes = new IntPtr(0);
- int nLength = bytes.Length;
- // Allocate some unmanaged memory for those bytes.
- pUnmanagedBytes = Marshal.AllocCoTaskMem(nLength);
- // Copy the managed byte array into the unmanaged array.
- Marshal.Copy(bytes, 0, pUnmanagedBytes, nLength);
- // Send the unmanaged bytes to the printer.
- bSuccess = SendBytesToPrinter(printerName, pUnmanagedBytes, nLength);
- // Free the unmanaged memory that you allocated earlier.
- Marshal.FreeCoTaskMem(pUnmanagedBytes);
- return bSuccess;
- }
- public static bool SendStringToPrinter(string printerName, string text)
- {
- IntPtr pBytes;
- Int32 dwCount;
- // How many characters are in the string?
- dwCount = (text.Length + 1) * Marshal.SystemMaxDBCSCharSize;
- // Assume that the printer is expecting ANSI text, and then convert
- // the string to ANSI text.
- pBytes = Marshal.StringToCoTaskMemAnsi(text);
- // Send the converted ANSI string to the printer.
- SendBytesToPrinter(printerName, pBytes, dwCount);
- Marshal.FreeCoTaskMem(pBytes);
- return true;
- }
- #endregion
- #region 日志记录方法
- private static void WriteLog(string text, LogType logType)
- {
- string endTag = string.Format("\r\n{0}\r\n", new string('=', 80));
- string path = string.Format("{0}\\{1}-{2}.log", LogsDirectory, DateTime.Now.ToString("yyyy-MM-dd"), logType);
- if (!Directory.Exists(LogsDirectory))
- {
- Directory.CreateDirectory(LogsDirectory);
- }
- if (logType == LogType.Error)
- {
- File.AppendAllText(path, string.Format("{0}{1}", text, endTag), Encoding.Default);
- }
- if (logType == LogType.Print)
- {
- if (text.StartsWith("N\r\nGW"))
- {
- using (FileStream fs = new FileStream(path, FileMode.Append))
- {
- byte[] bytes = TransferFormat.GetBytes(text);
- byte[] tag = TransferFormat.GetBytes(endTag);
- fs.Write(bytes, 0, bytes.Length);
- fs.Write(tag, 0, tag.Length);
- fs.Close();
- }
- }
- else
- {
- File.AppendAllText(path, string.Format("{0}{1}", text, endTag), Encoding.Default);
- }
- }
- }
- private static void WriteLog(byte[] bytes, LogType logType)
- {
- string endTag = string.Format("\r\n{0}\r\n", new string('=', 80));
- string path = string.Format("{0}\\{1}-{2}.log", LogsDirectory, DateTime.Now.ToString("yyyy-MM-dd"), logType);
- if (!Directory.Exists(LogsDirectory))
- {
- Directory.CreateDirectory(LogsDirectory);
- }
- if (logType == LogType.Error)
- {
- File.AppendAllText(path, string.Format("{0}{1}", Encoding.Default.GetString(bytes), endTag), Encoding.Default);
- }
- if (logType == LogType.Print)
- {
- string transferFormat = TransferFormat.GetString(bytes);
- if (transferFormat.StartsWith("N\r\nGW"))
- {
- using (FileStream fs = new FileStream(path, FileMode.Append))
- {
- byte[] tag = TransferFormat.GetBytes(endTag);
- fs.Write(bytes, 0, bytes.Length);
- fs.Write(tag, 0, tag.Length);
- fs.Close();
- }
- }
- else
- {
- File.AppendAllText(path, string.Format("{0}{1}", Encoding.Default.GetString(bytes), endTag), Encoding.Default);
- }
- }
- }
- #endregion
- #region 封装方法,方便调用。
- public static bool PrintWithCOM(string cmd, int port, bool isWriteLog)
- {
- PrinterType = DeviceType.COM;
- Port = port;
- IsWriteLog = isWriteLog;
- return PrintCommand(cmd);
- }
- public static bool PrintWithCOM(byte[] bytes, int port, bool isWriteLog, ProgrammingLanguage progLanguage)
- {
- PrinterType = DeviceType.COM;
- Port = port;
- IsWriteLog = isWriteLog;
- PrinterProgrammingLanguage = progLanguage;
- return PrintGraphics(bytes);
- }
- public static bool PrintWithLPT(string cmd, int port, bool isWriteLog)
- {
- PrinterType = DeviceType.LPT;
- Port = port;
- IsWriteLog = isWriteLog;
- return PrintCommand(cmd);
- }
- public static bool PrintWithLPT(byte[] bytes, int port, bool isWriteLog, ProgrammingLanguage progLanguage)
- {
- PrinterType = DeviceType.LPT;
- Port = port;
- IsWriteLog = isWriteLog;
- PrinterProgrammingLanguage = progLanguage;
- return PrintGraphics(bytes);
- }
- public static bool PrintWithDRV(string cmd, string printerName, bool isWriteLog)
- {
- PrinterType = DeviceType.DRV;
- PrinterName = printerName;
- IsWriteLog = isWriteLog;
- return PrintCommand(cmd);
- }
- public static bool PrintWithDRV(byte[] bytes, string printerName, bool isWriteLog, ProgrammingLanguage progLanguage)
- {
- PrinterType = DeviceType.DRV;
- PrinterName = printerName;
- IsWriteLog = isWriteLog;
- PrinterProgrammingLanguage = progLanguage;
- return PrintGraphics(bytes);
- }
- #endregion
- #region 打印ZPL、EPL指令
- public static bool PrintCommand(string cmd)
- {
- lock (SyncRoot)
- {
- bool result = false;
- try
- {
- switch (PrinterType)
- {
- case DeviceType.COM:
- result = comPrint(Encoding.Default.GetBytes(cmd));
- break;
- case DeviceType.LPT:
- result = lptPrint(Encoding.Default.GetBytes(cmd));
- break;
- case DeviceType.DRV:
- result = drvPrint(Encoding.Default.GetBytes(cmd));
- break;
- }
- if (!string.IsNullOrEmpty(cmd) && IsWriteLog)
- {
- WriteLog(cmd, LogType.Print);
- }
- }
- catch (Exception ex)
- {
- //记录日志
- if (IsWriteLog)
- {
- WriteLog(string.Format("{0} => {1}\r\n{2}", DateTime.Now, ex.Message, ex), LogType.Error);
- }
- }
- finally
- {
- GraphBuffer = new byte[0];
- }
- return result;
- }
- }
- #endregion
- #region 打印图像字节流
- public static bool PrintGraphics(byte[] graph)
- {
- lock (SyncRoot)
- {
- bool result = false;
- try
- {
- GraphBuffer = graph;
- byte[] cmdBytes = new byte[0];
- if (PrinterProgrammingLanguage == ProgrammingLanguage.ZPL)
- {
- cmdBytes = getZPLBytes();
- }
- if (PrinterProgrammingLanguage == ProgrammingLanguage.EPL)
- {
- cmdBytes = getEPLBytes();
- }
- switch (PrinterType)
- {
- case DeviceType.COM:
- result = comPrint(cmdBytes);
- break;
- case DeviceType.LPT:
- result = lptPrint(cmdBytes);
- break;
- case DeviceType.DRV:
- result = drvPrint(cmdBytes);
- break;
- }
- if (cmdBytes.Length > 0 && IsWriteLog)
- {
- WriteLog(cmdBytes, LogType.Print);
- }
- }
- catch (Exception ex)
- {
- //记录日志
- if (IsWriteLog)
- {
- WriteLog(string.Format("{0} => {1}\r\n{2}", DateTime.Now, ex.Message, ex), LogType.Error);
- }
- }
- finally
- {
- GraphBuffer = new byte[0];
- }
- return result;
- }
- }
- #endregion
- #region COM/LPT/DRV三种模式打印方法
- private static bool drvPrint(byte[] cmdBytes)
- {
- bool result = false;
- try
- {
- if (!string.IsNullOrEmpty(PrinterName))
- {
- result = SendBytesToPrinter(PrinterName, cmdBytes);
- }
- }
- catch (Exception ex)
- {
- throw ex;
- }
- return result;
- }
- private static bool comPrint(byte[] cmdBytes)
- {
- bool result = false;
- SerialPort com = new SerialPort(string.Format("{0}{1}", PrinterType, Port), 9600, Parity.None, 8, StopBits.One);
- try
- {
- com.Open();
- com.Write(cmdBytes, 0, cmdBytes.Length);
- result = true;
- }
- catch (Exception ex)
- {
- throw ex;
- }
- finally
- {
- if (com.IsOpen)
- {
- com.Close();
- }
- }
- return result;
- }
- private static bool lptPrint(byte[] cmdBytes)
- {
- bool result = false;
- FileStream fileStream = null;
- StreamWriter streamWriter = null;
- SafeFileHandle handle = null;
- try
- {
- handle = CreateFile(string.Format("{0}{1}", PrinterType, Port), GENERIC_WRITE, 0, IntPtr.Zero, OPEN_EXISTING, 0, IntPtr.Zero);
- if (!handle.IsInvalid)
- {
- fileStream = new FileStream(handle, FileAccess.ReadWrite);
- streamWriter = new StreamWriter(fileStream, Encoding.Default);
- streamWriter.Write(cmdBytes);
- result = true;
- }
- }
- catch (Exception ex)
- {
- throw ex;
- }
- finally
- {
- if (fileStream != null)
- {
- fileStream.Close();
- fileStream = null;
- }
- if (streamWriter != null)
- {
- streamWriter.Close();
- streamWriter = null;
- }
- if (handle != null)
- {
- handle.Close();
- handle = null;
- }
- }
- return result;
- }
- #endregion
- #region 生成ZPL图像打印指令
- private static byte[] getZPLBytes()
- {
- byte[] result = new byte[0];
- byte[] bmpData = getBitmapData();
- string textBitmap = string.Empty;
- string textHex = BitConverter.ToString(bmpData).Replace("-", string.Empty);
- for (int i = 0; i < GraphHeight;i++ )
- {
- textBitmap += textHex.Substring(i * RowRealBytesCount * 2, RowRealBytesCount * 2) + "\r\n";
- }
- string text = string.Format("~DGR:IMAGE.GRF,{0},{1},\r\n{2}^XGR:IMAGE.GRF,1,1^FS\r\n^IDR:IMAGE.GRF\r\n",
- GraphHeight * RowRealBytesCount,
- RowRealBytesCount,
- textBitmap);
- result = Encoding.Default.GetBytes(text);
- return result;
- }
- #endregion
- #region 生成EPL图像打印指令
- private static byte[] getEPLBytes()
- {
- byte[] result = new byte[0];
- byte[] buffer = getBitmapData();
- string text = string.Format("N\r\nGW{0},{1},{2},{3},{4}\r\nP\r\n",
- 0,
- 0,
- RowRealBytesCount,
- GraphHeight,
- TransferFormat.GetString(buffer));
- result = TransferFormat.GetBytes(text);
- return result;
- }
- #endregion
- #region 获取单色位图数据
- ///
- /// 获取单色位图数据(1bpp),不含文件头、信息头、调色板三类数据。
- ///
- ///
- 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.Save(dstStream, ImageFormat.Bmp);
- dstBuffer = dstStream.ToArray();
- int bfSize = BitConverter.ToInt32(dstBuffer, 2);
- int bfOffBits = BitConverter.ToInt32(dstBuffer, 10);
- int bitmapDataLength = bfSize - bfOffBits;
- 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++)
- {
- Array.Copy(dstBuffer, bfOffBits + (GraphHeight - 1 - i) * RowSize, result, i * RowRealBytesCount, RowRealBytesCount);
- }
- }
- catch (Exception ex)
- {
- throw 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
- }
- #endregion
- }
如何获取标签设计软件输出至打印的ZPL指令?
安装好打印机驱动,修改打印机端口,新建一个打印机端口,类型为本地端口,端口名称设置为C:\printer.log,再用标签设计软件打印一次,此文件中就有ZPL指令了。