cyf
62 lines
1.7 KiB
C#
62 lines
1.7 KiB
C#
using System;
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using System.Runtime.InteropServices;
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using System.IO;
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using System.Threading;
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using System.Windows.Forms;
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namespace Zhaizj.Framework.Utils
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{
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/// <summary>
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/// 钱箱控制
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/// </summary>
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public class POSPrinter
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{
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const int OPEN_EXISTING = 3;
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string prnPort = "COM1";
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[DllImport("kernel32.dll", CharSet = CharSet.Auto)]
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private static extern IntPtr CreateFile(string lpFileName,
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int dwDesiredAccess,
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int dwShareMode,
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int lpSecurityAttributes,
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int dwCreationDisposition,
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int dwFlagsAndAttributes,
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int hTemplateFile);
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public POSPrinter()
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{
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this.prnPort = "LPT1 ";
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//this.prnPort = "USB001";
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}
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public POSPrinter(string prnPort)
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{
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this.prnPort = prnPort;
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}
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public void PrintLine()
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{
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new Thread(new ThreadStart(OpenMoneyBox)).Start();
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}
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private void OpenMoneyBox()
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{
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try
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{
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IntPtr iHandle = CreateFile(prnPort, 0x40000000, 0, 0, OPEN_EXISTING, 0, 0);
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if (iHandle.ToInt32() == -1)
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{
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}
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else
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{
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FileStream fs = new FileStream(iHandle, FileAccess.ReadWrite);
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StreamWriter sw = new StreamWriter(fs, System.Text.Encoding.Default);
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sw.Write(((char)27).ToString() + "p" + ((char)0).ToString() + ((char)60).ToString() + ((char)255).ToString());
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sw.Close();
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fs.Close();
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}
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}
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catch
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{
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}
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}
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}
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} |