388 lines
15 KiB
C#
388 lines
15 KiB
C#
using Microsoft.Win32.SafeHandles;
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using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.IO;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Text.RegularExpressions;
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namespace libEShangPB
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{
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/// <summary>
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/// CLR版本 ：4.0.30319.42000
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/// 命名空间 ：TouchCashier.WorkUtils.Print
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/// 文件名称 ：PrintDeviceHelper.cs
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/// <para>小票打印机处理类</para>
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/// <para>创 建 者 ：liben</para>
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/// <para>创建日期 ：2021/12/16 21:26:12 </para>
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/// <para>最后修改者 ：liben</para>
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/// <para>最后修改日期：2021/12/16 21:26:12 </para>
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/// </summary>
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[ComVisible(false)]
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internal class PrintDeviceHelper
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{
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#region 打印机参数
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const uint GENERIC_READ = 0x80000000;
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const uint GENERIC_WRITE = 0x40000000;
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const uint FILE_ATTRIBUTE_NORMAL = 0x80;
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const int OPEN_EXISTING = 3;
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static string prnPort = "LPT1";
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[StructLayout(LayoutKind.Sequential)]
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private struct OVERLAPPED
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{
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int Internal;
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int InternalHigh;
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int Offset;
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int OffSetHigh;
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int hEvent;
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}
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[DllImport("kernel32.dll", CharSet = CharSet.Auto)]
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private static extern IntPtr CreateFile(string lpFileName, int dwDesiredAccess, int dwShareMode,
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int lpSecurityAttributes, int dwCreationDisposition, int dwFlagsAndAttributes, int hTemplateFile);
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[DllImport("kernel32.dll ")]
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private static extern bool WriteFile(int hFile, byte[] lpBuffer, int nNumberOfBytesToWrite,
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ref int lpNumberOfBytesWritten, ref OVERLAPPED lpOverlapped);
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[DllImport("kernel32.dll ")]
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private static extern bool DefineDosDevice(int dwFlags, string lpDeviceName, string lpTargetPath);
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[DllImport("kernel32.dll ")]
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private static extern bool CloseHandle(int hObject);
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[DllImport("kernel32.dll ")]
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private static extern bool ReadFile(int hFile, byte[] lpBuffer, int nNumberOfBytesToRead,
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ref int lpNumberOfBytesRead, int lpOverlapped);
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#endregion
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#region 方法 -> LPT打印票据信息
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/// <summary>
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/// LPT打印票据信息
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/// </summary>
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/// <param name="PrintList">待打印内容列表</param>
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/// <param name="PrintCount">打印份数</param>
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/// <param name="PaperLine">票尾走纸行数</param>
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/// <param name="IsOpenBox">是否开钱箱</param>
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/// <returns></returns>
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public static bool PrintList(List<string> PrintList, int PrintCount = 1, int PaperLine = 6, bool IsOpenBox = true)
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{
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if (PrintList.Count == 0)
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{
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return false;
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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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using (SafeFileHandle _SafeFileHandle = new SafeFileHandle(iHandle, true))
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{
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if (iHandle.ToInt32() == -1)
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{
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return false;
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}
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else
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{
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FileStream fs_Print = new FileStream(_SafeFileHandle, FileAccess.ReadWrite);
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if (IsOpenBox)
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{
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//发送开钱箱指令
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char[] _open = { (char)27, (char)112, (char)0, (char)32, (char)160 };
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byte[] _byte = Encoding.Default.GetBytes(_open);
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fs_Print.Write(_byte, 0, _byte.Length);
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}
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string str_Print = $"{(char)27}{(char)64}{(char)27}{(char)33}{(char)0}";
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for (int i = 0; i < PrintCount; i++)
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{
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foreach (string str_Temp in PrintList)
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{
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str_Print += str_Temp + "\n";
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}
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str_Print += $"{(char)27}{(char)64}{(char)27}{(char)33}{(char)0}";
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for (int p = 0; p < PaperLine; p++)
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{
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str_Print += "\n";
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}
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}
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byte[] byte_Print = Encoding.Default.GetBytes(str_Print);
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fs_Print.Write(byte_Print, 0, byte_Print.Length);
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fs_Print.Close();
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}
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return true;
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}
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}
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catch
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{
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return false;
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}
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}
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#endregion
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#region 方法 -> LPT打印机开钱箱
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/// <summary>
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/// LPT打印机开钱箱
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/// </summary>
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/// <returns></returns>
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public static bool LptOpenBox()
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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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using (SafeFileHandle _SafeFileHandle = new SafeFileHandle(iHandle, true))
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{
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if (iHandle.ToInt32() == -1)
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{
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return false;
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}
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else
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{
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FileStream fs = new FileStream(_SafeFileHandle, FileAccess.ReadWrite);
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char[] _open = { (char)27, (char)112, (char)0, (char)32, (char)160 };
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byte[] _byte = Encoding.Default.GetBytes(_open);
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fs.Write(_byte, 0, _byte.Length);
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fs.Close();
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}
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return true;
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}
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}
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catch
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{
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return false;
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}
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}
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#endregion
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#region 方法 -> LPT打印图片
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/// <summary>
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/// 打印图片方法
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/// </summary>
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/// <param name="bmpQRcode"></param>
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public static bool PrintQRCode(Bitmap bmpQRcode)
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{
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IntPtr iHandle = CreateFile(prnPort, 0x40000000, 0, 0, OPEN_EXISTING, 0, 0);
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using (SafeFileHandle _SafeFileHandle = new SafeFileHandle(iHandle, true))
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{
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if (iHandle.ToInt32() == -1)
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{
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return false;
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//throw new Exception("没有连接打印机或者打印机端口不是LPT1");
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}
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else
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{
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OVERLAPPED x = new OVERLAPPED();
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int y = 0;
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//设置字符行间距为n点行
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//byte[] data = new byte[] { 0x1B, 0x33, 0x00 };
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string send = "" + (char)(27) + (char)(51) + (char)(0);
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byte[] data = new byte[send.Length];
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for (int i = 0; i < send.Length; i++)
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{
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data[i] = (byte)send[i];
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}
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WriteFile(iHandle.ToInt32(), data, data.Length, ref y, ref x);
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//Write(data);
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data[0] = (byte)'\x00';
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data[1] = (byte)'\x00';
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data[2] = (byte)'\x00'; // Clear to Zero.
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Color pixelColor;
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//ESC * m nL nH d1…dk 选择位图模式
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// ESC * m nL nH
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byte[] escBmp = new byte[] { 0x1B, 0x2A, 0x00, 0x00, 0x00 };
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escBmp[2] = (byte)'\x21';
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//nL, nH
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escBmp[3] = (byte)(bmpQRcode.Width % 256);
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escBmp[4] = (byte)(bmpQRcode.Width / 256);
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//循环图片像素打印图片
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//循环高
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for (int i = 0; i < (bmpQRcode.Height / 24 + 1); i++)
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{
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//设置模式为位图模式
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WriteFile(iHandle.ToInt32(), escBmp, escBmp.Length, ref y, ref x);
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//循环宽
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for (int j = 0; j < bmpQRcode.Width; j++)
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{
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for (int k = 0; k < 24; k++)
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{
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if (((i * 24) + k) < bmpQRcode.Height) // if within the BMP size
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{
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pixelColor = bmpQRcode.GetPixel(j, (i * 24) + k);
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if (pixelColor.R == 0)
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{
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data[k / 8] += (byte)(128 >> (k % 8));
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}
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}
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}
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//一次写入一个data，24个像素
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WriteFile(iHandle.ToInt32(), data, data.Length, ref y, ref x);
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data[0] = (byte)'\x00';
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data[1] = (byte)'\x00';
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data[2] = (byte)'\x00'; // Clear to Zero.
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}
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//换行，打印第二行
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byte[] data2 = { 0xA };
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WriteFile(iHandle.ToInt32(), data2, data2.Length, ref y, ref x);
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} // data
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byte[] data3 = new byte[] { 0x1B, 0X32, 0xA, 0xA, 0xA, 0xA };
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WriteFile(iHandle.ToInt32(), data3, data3.Length, ref y, ref x);
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CloseHandle(iHandle.ToInt32());
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}
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return true;
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}
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}
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#endregion
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#region 方法 -> 设置打印字体大小
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/// <summary>
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/// 设置打印字体大小
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/// </summary>
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/// <param name="multiple">字体放大倍数，0为默认大小</param>
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/// <param name="bold">字体是否加粗</param>
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/// <returns></returns>
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public static string SetPrintFontSize(int multiple, bool bold = false)
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{
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if (multiple < 0)
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{
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multiple = 0;
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}
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int int_FontSize = multiple * 16;
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string str_FontSize = $"{(char)27}{(char)33}{(char)int_FontSize}";
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if (bold)
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{
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str_FontSize += $"{(char)27}{(char)69}{(char)15}";
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}
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else
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{
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str_FontSize += $"{(char)27}{(char)69}{(char)0}";
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}
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return str_FontSize;
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}
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#endregion
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#region 方法 -> 选择/取消下划线模式
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/// <summary>
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/// 选择/取消下划线模式
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/// </summary>
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/// <param name="multiple">下划线宽度，可选：
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/// <para>0：取消下划线模式</para>
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/// <para>1：选择下划线模式(1 点宽)</para>
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/// <para>2：选择下划线模式(2 点宽)</para></param>
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/// <returns></returns>
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public static string SetPrintCharacter(int multiple)
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{
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if (multiple < 0)
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{
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multiple = 0;
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}
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return $"{(char)27}{(char)45}{(char)multiple}";
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}
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#endregion
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#region 方法 -> 生成两侧对齐行
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/// <summary>
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/// 生成两侧对齐行
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/// </summary>
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/// <param name="leftString">左侧字符字符串</param>
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/// <param name="rightString">右侧字符串</param>
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/// <param name="paddingChar">填充的字符</param>
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/// <param name="lineLength">行长度</param>
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/// <returns></returns>
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public static string CreateSideLine(string leftString, string rightString, char paddingChar = ' ', int lineLength = 32)
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{
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try
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{
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int i_Len = lineLength - StringLength(leftString) - StringLength(rightString);
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return leftString + rightString.PadLeft(i_Len + rightString.Length, paddingChar);
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}
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catch
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{
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return leftString + rightString;
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}
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}
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#endregion
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#region 方法 -> 生成居中行
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/// <summary>
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/// 生成居中对齐行
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/// </summary>
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/// <param name="centerString">居中字符串</param>
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/// <param name="paddingChar">填充的字符</param>
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/// <param name="lineLength">行长度</param>
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/// <returns></returns>
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public static string CreateCenterLine(string centerString, char paddingChar = ' ', int lineLength = 32)
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{
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try
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{
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int i_Len = (lineLength - StringLength(centerString)) / 2;
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return centerString.PadLeft(i_Len + centerString.Length, paddingChar);
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}
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catch
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{
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return centerString;
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}
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}
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#endregion
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#region 方法 -> 生成左对齐行
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/// <summary>
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/// 生成左对齐行
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/// </summary>
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/// <param name="leftString">需要左对齐的文本</param>
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/// <param name="paddingChar">填充的字符</param>
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/// <param name="lineLength">单行字符字节长度</param>
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/// <returns></returns>
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public static string CreateLeftLine(string leftString, char paddingChar = ' ', int lineLength = 32)
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{
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try
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{
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int i_Len = lineLength - StringLength(leftString);
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return leftString.PadRight(i_Len + leftString.Length, paddingChar);
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}
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catch
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{
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return leftString;
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}
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}
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#endregion
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#region 方法 -> 生成右对齐行
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/// <summary>
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/// 生成右对齐行
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/// </summary>
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/// <param name="rightString">需要右对齐的文本</param>
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/// <param name="paddingChar">填充的字符</param>
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/// <param name="lineLength">单行字符字节长度</param>
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/// <returns></returns>
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public static string CreateRightLine(string rightString, char paddingChar = ' ', int lineLength = 32)
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{
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try
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{
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int i_Len = lineLength - StringLength(rightString);
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return rightString.PadLeft(i_Len + rightString.Length, paddingChar);
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}
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catch
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{
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return rightString;
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}
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}
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#endregion
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#region 方法 -> 计算字符串字节长度
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/// <summary>
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/// 计算字符串字节长度
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/// </summary>
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/// <param name="calculateString">待计算字符串</param>
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/// <returns></returns>
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private static int StringLength(string calculateString)
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{
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if (string.IsNullOrEmpty(calculateString))
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{
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return 0;
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}
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//计算得到该字符串对应单字节字符串的长度
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return Regex.Replace(calculateString, @"[^\x00-\xff]", "aa").Length;
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}
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#endregion
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}
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}
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