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  • C#直接发送打印机命令到打印机(这里测试的是直接弹出钱箱操作)

    库:

    using System;
    using System.Collections.Generic;
    using System.Text;
    using System.Runtime.InteropServices;
    
    namespace BarCodeLibrary
    {
        public class ZebraGesigner
        {
            [StructLayout(LayoutKind.Sequential)]
            private struct OVERLAPPED
            {
                int Internal;
                int InternalHigh;
                int Offset;
                int OffSetHigh;
                int hEvent;
            }
            [DllImport("kernel32.dll")]
            private static extern int CreateFile(string lpFileName, uint dwDesiredAccess, int dwShareMode, int lpSecurityAttributes, int dwCreationDisposition, int dwFlagsAndAttributes, int hTemplateFile);
            [DllImport("kernel32.dll")]
            private static extern bool WriteFile(int hFile, byte[] lpBuffer, int nNumberOfBytesToWriter, out int lpNumberOfBytesWriten, out OVERLAPPED lpOverLapped);
            [DllImport("kernel32.dll")]
            private static extern bool CloseHandle(int hObject);
            [DllImport("fnthex32.dll")]
            public static extern int GETFONTHEX(string barcodeText,string fontName,int orient,int height,int width,int isBold,int isItalic,StringBuilder returnBarcodeCMD);
            private int iHandle;
            //打开LPT 端口
            public bool Open()
            {
                iHandle = CreateFile("lpt1", 0x40000000, 0, 0, 3, 0, 0);
                if (iHandle != -1)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
            //打印函数,参数为打印机的命令或者其他文本!
            public bool Write(string MyString)
            {
                if (iHandle != 1)
                {
                    int i;
                    OVERLAPPED x;
                    byte[] mybyte = System.Text.Encoding.Default.GetBytes(MyString);
                    return WriteFile(iHandle, mybyte, mybyte.Length, out i, out x);
                }
                else
                {
                    throw new Exception("端口未打开~!");
                }
            }
         //关闭打印端口
            public bool Close()
            {
                return CloseHandle(iHandle);
            }
        }
    }

    使用:

    privatevoid button1_Click(object sender, EventArgs e)  
     {  
         ZebraGesigner zb = new ZebraGesigner();  
         //string mycommanglines = System.IO.File.ReadAllText("print.txt");//print.txt里写了条码机的命令  
         string mycommanglines = "" + (char)(27) + (char)(112) + (char)(0) + (char)(60) + (char)(255);//弹钱箱操作
         zb.Open();  
         zb.Write(mycommanglines);  
         zb.Close();  
    }

    转 : https://www.cnblogs.com/zhongxinWang/archive/2013/05/05/3061446.html

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  • 原文地址:https://www.cnblogs.com/fps2tao/p/14749876.html
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