本篇文章为大家展示了C#中怎么实现打印条码操作,内容简明扼要并且容易理解,绝对能使你眼前一亮,通过这篇文章的详细介绍希望你能有所收获。
C#打印条码操作的实例:
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; //C#打印条码操作的实例 namespace PrintDemo { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { tbBarCode.Focus(); } //C#打印条码操作的实例 private void tbBarCode_KeyDown(object sender, KeyEventArgs e) { switch (e.KeyCode) { case Keys.Enter: PrintBarcode(tbBarCode.Text.Trim()); tbBarCode.Text = ""; tbBarCode.Focus(); break; default: break; } } private void PrintBarcode(string Barcode) { Barcode = "^XA^FO48,12^BY4^BCN,152,N,N^FD>;" + //C#打印条码操作的实例 Barcode.Trim() + "^FS^FT62,220^CI0^ABN,44,28^FD" + Barcode.Trim() + "^FS^PQ1,0,1,Y^XZ"; PrintDemo.POSPrinter prn = new PrintDemo.POSPrinter("LPT1"); string strmsg = prn.PrintLine(Barcode); if (strmsg != "") { MessageBox.Show(strmsg); } } } }
C#打印条码操作之类POSPrinter定义如下
namespace PrintDemo { class POSPrinter { const int OPEN_EXISTING = 3; string prnPort = "LPT1"; [DllImport("kernel32.dll", CharSet = CharSet.Auto)] private static extern IntPtr CreateFile(string lpFileName, int dwDesiredAccess, int dwShareMode, int lpSecurityAttributes, int dwCreationDisposition, int dwFlagsAndAttributes, int hTemplateFile); public POSPrinter() { // // TODO: 在此处添加构造函数逻辑 // } public POSPrinter(string prnPort) { this.prnPort = prnPort;//打印机端口 } public string PrintLine(string str) { IntPtr iHandle = CreateFile(prnPort, 0x40000000, 0, 0, OPEN_EXISTING, 0, 0); if (iHandle.ToInt32() == -1) { return "LPT1 Port Open Failed"; } else { FileStream fs = new FileStream(iHandle, FileAccess.ReadWrite); StreamWriter sw = new StreamWriter(fs, System.Text.Encoding.Default);//C#打印条码操作之写数据 sw.WriteLine(str); sw.Close(); fs.Close(); return ""; } } } }
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