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using Bro.Common.Helper;
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using Bro.Common.Interface;
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using Bro.UI.Model.Winform;
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using Sunny.UI;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Drawing.Printing;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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using ZXing;
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using ZXing.Common;
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using static System.Windows.Forms.AxHost;
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//using System.Printing;
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namespace Bro.M141.Process
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{
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[MenuNode("PrinterStatus", "打印机显示界面", 2, EnumHelper.TopMenu.SystemInfo, MenuNodeType.Form)]
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public partial class UIPrinter : MenuFormBase
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//public partial class UIPrinter : UserControl
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{
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M141Config Config141 => Process.IConfig as M141Config;
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M141Process Process141 => Process as M141Process;
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public UIPrinter()
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{
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InitializeComponent();
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}
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public override void OnProcessUpdated()
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{
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base.OnProcessUpdated();
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printDocument1.PrintPage += new PrintPageEventHandler(printDocument_Print);
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Process141.StartPrinter += StartPrint;
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textBox1.Text = "Broconcentric";
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}
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PrintDocument printDocument1 = new PrintDocument();
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int ttwith = (int)(80 * 4);
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int ttheigh = (int)(40 * 4);
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string message = "";
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public void StartPrint(string str)
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{
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try
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{
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ttwith = 320;
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ttheigh = 160;
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message = str;
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if (string.IsNullOrEmpty(message))
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{
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message = textBox1.Text;
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}
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this.printDocument1.DefaultPageSettings.PrinterSettings.PrinterName = "Honeywell PX240S (300 dpi)";
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this.printDocument1.DefaultPageSettings.PaperSize = new PaperSize("Custum", ttwith, ttheigh);
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this.printDocument1.PrintController = new System.Drawing.Printing.StandardPrintController();
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this.printDocument1.Print();
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}
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catch
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{
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}
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int statuscode = GetPrinterStatusCodeInt();
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string status = GetPrinterStatusMessage(statuscode);
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//Config141
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Process141.PlcwritePrinter(1520, 0);
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Process141.PlcwritePrinter(1510, 1);
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}
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private void printDocument_Print(object sender, PrintPageEventArgs e)
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{
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Font fntTxt = new Font("黑体", 15, System.Drawing.FontStyle.Bold);//正文文字
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System.Drawing.Brush brush = new SolidBrush(System.Drawing.Color.Black);//画刷
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try
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{
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string numvalue = message;
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float Scale = (float)0.95;
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int startX = 10;
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int startY = 25;
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//int length = 320 * Scale;
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//int height = 160 * Scale;
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var g = e.Graphics;
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Font font = new Font("Arial", 8 * Scale);//设置字体颜色
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Font font2 = new Font("Arial", 11 * Scale);//设置字体颜色
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Font font3 = new Font("Arial", 36 * Scale);//设置字体颜色
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Font font4 = new Font("Arial", 12 * Scale);//设置字体颜色
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Pen p = new Pen(Color.Black, Scale);//定义了一个黑色,宽度为1的画笔
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g.Clear(Color.White);
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g.DrawRectangle(p, startX * Scale, startY * Scale, 70 * Scale, 20 * Scale);//在画板上画矩形,起始坐标为(10,10),宽为80,高为20
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g.DrawRectangle(p, startX * Scale, startY * Scale, 280 * Scale, 20 * Scale);//在画板上画矩形,起始坐标为(90,10),宽为80,高为20
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g.DrawString("厂商", font, brush, (startX + 20) * Scale, (startY + 5) * Scale);//
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g.DrawString("嘉彰科技", font2, brush, (startX + 140) * Scale, (startY + 4) * Scale);
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//第二行数据
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g.DrawRectangle(p, startX * Scale, (startY + 20) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 20) * Scale, 280 * Scale, 20 * Scale);
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g.DrawString("品名", font, brush, (startX + 20) * Scale, (startY + 25) * Scale);
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g.DrawString(@"COVER LG208H-RC100 #2", font4, brush, (startX + 71) * Scale, (startY + 22) * Scale);
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//第三行数据
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g.DrawRectangle(p, startX * Scale, (startY + 40) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 40) * Scale, 280 * Scale, 20 * Scale);
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g.DrawString("料号", font, brush, (startX + 20) * Scale, (startY + 45) * Scale);
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g.DrawString(@"436LG208I000", font2, brush, (startX + 130) * Scale, (startY + 43) * Scale);
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//第四行数据
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g.DrawRectangle(p, startX * Scale, (startY + 60) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 60) * Scale, 210 * Scale, 20 * Scale);
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g.DrawString("数量", font, brush, (startX + 20) * Scale, (startY + 65) * Scale);
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g.DrawString(@"50PCS", font2, brush, (startX + 120) * Scale, (startY + 62) * Scale);
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//第五行数据
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g.DrawRectangle(p, startX * Scale, (startY + 80) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 80) * Scale, 210 * Scale, 20 * Scale);
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g.DrawString("生产日期", font, brush, (startX + 10) * Scale, (startY + 85) * Scale);
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g.DrawString($"{DateTime.Now.ToString("yyyy.MM.dd")}", font2, brush, (startX + 105) * Scale, (startY + 82) * Scale);
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//第六行数据
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g.DrawRectangle(p, startX * Scale, (startY + 100) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 100) * Scale, 140 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 100) * Scale, 210 * Scale, 20 * Scale);
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g.DrawString("MARK1", font, brush, (startX + 15) * Scale, (startY + 104) * Scale);
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g.DrawString("MARK2", font, brush, (startX + 155) * Scale, (startY + 104) * Scale);
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//侧面
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g.DrawRectangle(p, (startX + 210) * Scale, (startY + 60) * Scale, 70 * Scale, 60 * Scale);
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g.DrawString(@"#2", font3, brush, (startX + 210) * Scale, (startY + 62) * Scale);
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}
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catch (Exception ee)
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{
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MessageBox.Show(ee.Message);
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}
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}
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private void printDocument_Print222(object sender, PrintPageEventArgs e)
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{
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Font fntTxt = new Font("黑体", 15, System.Drawing.FontStyle.Bold);//正文文字
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System.Drawing.Brush brush = new SolidBrush(System.Drawing.Color.Black);//画刷
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try
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{
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string numvalue = message;
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//Bitmap bitmap = getexcel();// CreateCode(numvalue);
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//int with = (ttwith - bitmap.Width) / 2 - 20;
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//int heih = (ttheigh - bitmap.Height) / 2;
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//條碼的位置
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//e.Graphics.DrawImage(bitmap, new System.Drawing.Point(0, 0));
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//條碼信息數字的位置
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//e.Graphics.DrawString(numvalue, fntTxt, brush, new System.Drawing.Point(bitmap.Width / 4 + with - 10, heih + bitmap.Height + 5));
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//e.Graphics.DrawImage(img, new Rectangle(25, 25, bmpwidth, bmpheight), new Rectangle(0, 0, img.Width, img.Height), GraphicsUnit.Pixel);
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int Scale = 1;
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int startX = 10;
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int startY = 25;
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int length = 320 * Scale;
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int height = 160 * Scale;
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var g = e.Graphics;
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Font font = new Font("Arial", 8 * Scale);//设置字体颜色
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Font font2 = new Font("Arial", 11 * Scale);//设置字体颜色
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Font font3 = new Font("Arial", 36 * Scale);//设置字体颜色
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Font font4 = new Font("Arial", 12 * Scale);//设置字体颜色
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//SolidBrush brush = new SolidBrush(Color.Black);//新建一个画刷,到这里为止,我们已经准备好了画板、画刷、和数据
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Pen p = new Pen(Color.Black, Scale);//定义了一个黑色,宽度为1的画笔
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g.Clear(Color.White); //设置白色背景
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//第一行数据
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g.DrawRectangle(p, startX * Scale, startY * Scale, 70 * Scale, 20 * Scale);//在画板上画矩形,起始坐标为(10,10),宽为80,高为20
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g.DrawRectangle(p, startX * Scale, startY * Scale, 280 * Scale, 20 * Scale);//在画板上画矩形,起始坐标为(90,10),宽为80,高为20
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g.DrawString("厂商", font, brush, (startX + 20) * Scale, (startY + 5) * Scale);//
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g.DrawString("嘉彰科技", font2, brush, (startX + 140) * Scale, (startY + 4) * Scale);
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//第二行数据
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g.DrawRectangle(p, startX * Scale, (startY + 20) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 20) * Scale, 280 * Scale, 20 * Scale);
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g.DrawString("品名", font, brush, (startX + 20) * Scale, (startY + 25) * Scale);
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g.DrawString(@"COVER LG208H-RC100 #2", font4, brush, (startX + 71) * Scale, (startY + 22) * Scale);
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//第三行数据
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g.DrawRectangle(p, startX * Scale, (startY + 40) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 40) * Scale, 280 * Scale, 20 * Scale);
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g.DrawString("料号", font, brush, (startX + 20) * Scale, (startY + 45) * Scale);
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g.DrawString(@"436LG208I000", font2, brush, (startX + 130) * Scale, (startY + 43) * Scale);
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//第四行数据
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g.DrawRectangle(p, startX * Scale, (startY + 60) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 60) * Scale, 210 * Scale, 20 * Scale);
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g.DrawString("数量", font, brush, (startX + 20) * Scale, (startY + 65) * Scale);
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g.DrawString(@"50PCS", font2, brush, (startX + 120) * Scale, (startY + 62) * Scale);
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//第五行数据
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g.DrawRectangle(p, startX * Scale, (startY + 80) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 80) * Scale, 210 * Scale, 20 * Scale);
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g.DrawString("生产日期", font, brush, (startX + 10) * Scale, (startY + 85) * Scale);
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g.DrawString($"{DateTime.Now.ToString("yyyy.MM.dd")}", font2, brush, (startX + 105) * Scale, (startY + 82) * Scale);
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//第六行数据
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g.DrawRectangle(p, startX * Scale, (startY + 100) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 100) * Scale, 140 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 100) * Scale, 210 * Scale, 20 * Scale);
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g.DrawString("MARK1", font, brush, (startX + 15) * Scale, (startY + 104) * Scale);
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g.DrawString("MARK2", font, brush, (startX + 155) * Scale, (startY + 104) * Scale);
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//侧面
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g.DrawRectangle(p, (startX + 210) * Scale, (startY + 60) * Scale, 70 * Scale, 60 * Scale);
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g.DrawString(@"#2", font3, brush, (startX + 210) * Scale, (startY + 62) * Scale);
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}
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catch (Exception ee)
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{
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MessageBox.Show(ee.Message);
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}
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}
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public static Bitmap CreateCode(string asset)
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{
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// 1.设置条形码规格
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EncodingOptions options = new EncodingOptions();
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options.Height = 100; // 必须制定高度、宽度
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options.Width = 250;
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// 2.生成条形码图片并保存
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var writer = new BarcodeWriter();
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writer.Options = options;
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writer.Format = BarcodeFormat.CODE_128; // 这里可以设定条码的标准
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//為true不自帶條碼信息
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options.PureBarcode = true;
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Bitmap bp = writer.Write(asset);
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return bp; // 生成图片
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}
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//打印
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private void button1_Click(object sender, EventArgs e)
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{
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message = textBox1.Text;
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if (string.IsNullOrEmpty(message))
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{
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MessageBox.Show("打印内容不可为空");
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return;
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}
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StartPrint(message);
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}
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//预览
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private void button2_Click(object sender, EventArgs e)
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{
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message = textBox1.Text;
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if (string.IsNullOrEmpty(message))
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{
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MessageBox.Show("打印内容不可为空");
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return;
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}
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PrintPreviewDialog printPreviewDialog1 = new PrintPreviewDialog();
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this.printDocument1.DefaultPageSettings.PrinterSettings.PrinterName = "Honeywell PX240S (300 dpi)";
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this.printDocument1.DefaultPageSettings.PaperSize = new PaperSize("Custum", ttwith, ttheigh);
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//this.printDocument1.PrintPage += new PrintPageEventHandler(this.printDocument_Print);
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printPreviewDialog1.Document = printDocument1;
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DialogResult res = printPreviewDialog1.ShowDialog();
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printPreviewDialog1.Document.Dispose();
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}
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public Bitmap getexcel()
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{
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int startX = 10;
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int startY = 25;
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int Scale = 1;
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int length = 320 * Scale;
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int height = 160 * Scale;
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Bitmap bmp = new Bitmap(length, height);//, System.Drawing.Imaging.PixelFormat.Format32bppArgb);//新建一个图片对象
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//bmp.SetResolution(320, 160);
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Graphics g = Graphics.FromImage(bmp);//利用该图片对象生成“画板”
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Font font = new Font("Arial", 8 * Scale);//设置字体颜色
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Font font2 = new Font("Arial", 11 * Scale);//设置字体颜色
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Font font3 = new Font("Arial", 36 * Scale);//设置字体颜色
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Font font4 = new Font("Arial", 12 * Scale);//设置字体颜色
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SolidBrush brush = new SolidBrush(Color.Black);//新建一个画刷,到这里为止,我们已经准备好了画板、画刷、和数据
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//g.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
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//g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
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//g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
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//g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;
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//g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
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//g.PixelOffsetMode = PixelOffsetMode.Half;
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Pen p = new Pen(Color.Black, Scale);//定义了一个黑色,宽度为1的画笔
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g.Clear(Color.White); //设置白色背景
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//第一行数据
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g.DrawRectangle(p, startX * Scale, startY * Scale, 70 * Scale, 20 * Scale);//在画板上画矩形,起始坐标为(10,10),宽为80,高为20
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g.DrawRectangle(p, startX * Scale, startY * Scale, 280 * Scale, 20 * Scale);//在画板上画矩形,起始坐标为(90,10),宽为80,高为20
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g.DrawString("厂商", font, brush, (startX + 20) * Scale, (startY + 5) * Scale);//
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g.DrawString("嘉彰科技", font2, brush, (startX + 140) * Scale, (startY + 4) * Scale);
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//第二行数据
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g.DrawRectangle(p, startX * Scale, (startY + 20) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 20) * Scale, 280 * Scale, 20 * Scale);
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g.DrawString("品名", font, brush, (startX + 20) * Scale, (startY + 25) * Scale);
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g.DrawString(@"COVER LG208H-RC100 #2", font4, brush, (startX + 71) * Scale, (startY + 22) * Scale);
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//第三行数据
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g.DrawRectangle(p, startX * Scale, (startY + 40) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 40) * Scale, 280 * Scale, 20 * Scale);
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g.DrawString("料号", font, brush, (startX + 20) * Scale, (startY + 45) * Scale);
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g.DrawString(@"436LG208I000", font2, brush, (startX + 130) * Scale, (startY + 43) * Scale);
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//第四行数据
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g.DrawRectangle(p, startX * Scale, (startY + 60) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 60) * Scale, 210 * Scale, 20 * Scale);
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g.DrawString("数量", font, brush, (startX + 20) * Scale, (startY + 65) * Scale);
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g.DrawString(@"50PCS", font2, brush, (startX + 120) * Scale, (startY + 62) * Scale);
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//第五行数据
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g.DrawRectangle(p, startX * Scale, (startY + 80) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 80) * Scale, 210 * Scale, 20 * Scale);
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g.DrawString("生产日期", font, brush, (startX + 10) * Scale, (startY + 85) * Scale);
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g.DrawString($"{DateTime.Now.ToString("yyyy.MM.dd")}", font2, brush, (startX + 105) * Scale, (startY + 82) * Scale);
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//第六行数据
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g.DrawRectangle(p, startX * Scale, (startY + 100) * Scale, 70 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 100) * Scale, 140 * Scale, 20 * Scale);
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g.DrawRectangle(p, startX * Scale, (startY + 100) * Scale, 210 * Scale, 20 * Scale);
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g.DrawString("MARK1", font, brush, (startX + 15) * Scale, (startY + 104) * Scale);
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g.DrawString("MARK2", font, brush, (startX + 155) * Scale, (startY + 104) * Scale);
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//侧面
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g.DrawRectangle(p, (startX + 210) * Scale, (startY + 60) * Scale, 70 * Scale, 60 * Scale);
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g.DrawString(@"#2", font3, brush, (startX + 210) * Scale, (startY + 62) * Scale);
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//Font font22 = new Font("Arial", 6);//设置字体颜色
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//for (int i = 0; i < 32;i++)
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//{
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// g.DrawString(i.ToString(), font22, brush, 0, i*10);
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// g.DrawString(i.ToString(), font22, brush, i * 10, 0);
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//}
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//bmp.Save("E:/test.bmp");//保存为输出流，否则页面上显示不出来
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g.Dispose();//释放掉该资源
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bmp.SetResolution(105 * Scale, 105 * Scale);
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return bmp;
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}
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#region
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[DllImport("winspool.drv", CharSet = CharSet.Auto, SetLastError = true)]
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private static extern bool OpenPrinter(string pPrinterName, out IntPtr hPrinter, IntPtr pDefault);
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[DllImport("winspool.drv", SetLastError = true)]
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private static extern bool ClosePrinter(IntPtr hPrinter);
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[DllImport("winspool.drv", SetLastError = true)]
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private static extern bool GetPrinter(IntPtr hPrinter,
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int dwLevel, IntPtr pPrinter, int cbBuf, out int pcbNeeded);
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|
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[DllImport("winspool.drv", CharSet = CharSet.Auto)]
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public static extern int EnumJobs(IntPtr hPrinter, int FirstJob, int NoJobs, int Level, IntPtr pInfo, int cdBuf,
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out int pcbNeeded, out int pcReturned);
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|
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
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public struct PRINTER_INFO_2
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{
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public string pServerName;
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public string pPrinterName;
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public string pShareName;
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public string pPortName;
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public string pDriverName;
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public string pComment;
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public string pLocation;
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public IntPtr pDevMode;
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public string pSepFile;
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public string pPrintProcessor;
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public string pDatatype;
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public string pParameters;
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public IntPtr pSecurityDescriptor;
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public uint Attributes;
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public uint Priority;
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public uint DefaultPriority;
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public uint StartTime;
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public uint UntilTime;
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public uint Status;
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public uint cJobs;
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public uint AveragePPM;
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}
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/// <summary>
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/// 默认打印机的名称
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/// </summary>
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//private static string printerName = new LocalPrintServer().DefaultPrintQueue.Name;
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private static string printerName = "Honeywell PX240S (300 dpi)";
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/// <summary>
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/// 获取打印机的状态编码(方式1)
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/// </summary>
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/// <returns></returns>
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public static int GetPrinterStatusCodeInt()
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{
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int intRet = -1;
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IntPtr hPrinter;
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|
|
if (OpenPrinter(printerName, out hPrinter, IntPtr.Zero))
|
{
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int cbNeeded = 0;
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bool bolRet = GetPrinter(hPrinter, 2, IntPtr.Zero, 0, out cbNeeded);
|
if (cbNeeded > 0)
|
{
|
IntPtr pAddr = Marshal.AllocHGlobal((int)cbNeeded);
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bolRet = GetPrinter(hPrinter, 2, pAddr, cbNeeded, out cbNeeded);
|
if (bolRet)
|
{
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PRINTER_INFO_2 Info2 = new PRINTER_INFO_2();
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|
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Info2 = (PRINTER_INFO_2)Marshal.PtrToStructure(pAddr, typeof(PRINTER_INFO_2));
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|
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intRet = System.Convert.ToInt32(Info2.Status);
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}
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Marshal.FreeHGlobal(pAddr);
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}
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ClosePrinter(hPrinter);
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}
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|
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return intRet;
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}
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/// <summary>
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/// 检查打印机是否可用(方式1)
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/// </summary>
|
/// <param name="intStatusCodeValue"></param>
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/// <returns></returns>
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public static bool CheckIsEnable(int intStatusCodeValue)
|
{
|
bool isEnable = false;
|
if (UIPrinter.GetTaskNumber() == 0)
|
{
|
return true;
|
}
|
if (intStatusCodeValue == 0x0008000 || intStatusCodeValue == 0x00000400 || intStatusCodeValue == 0x00004000)
|
{
|
return true;
|
}
|
return isEnable;
|
}
|
|
|
/// <summary>
|
/// 获取打印机的状态信息(方式1)
|
/// </summary>
|
/// <returns></returns>
|
public static string GetPrinterStatusMessage(int intStatusCodeValue)
|
{
|
string strRet = string.Empty;
|
switch (intStatusCodeValue)
|
{
|
case 0:
|
strRet = "准备就绪（Ready）";
|
break;
|
case 0x00000200:
|
strRet = "忙(Busy）";
|
break;
|
case 0x00400000:
|
strRet = "被打开（Printer Door Open）";
|
break;
|
case 0x00000002:
|
strRet = "错误(Printer Error）";
|
break;
|
case 0x0008000:
|
strRet = "初始化(Initializing）";
|
break;
|
case 0x00000100:
|
strRet = "正在输入,输出（I/O Active）";
|
break;
|
case 0x00000020:
|
strRet = "手工送纸（Manual Feed）";
|
break;
|
case 0x00040000:
|
strRet = "无墨粉（No Toner）";
|
break;
|
case 0x00001000:
|
strRet = "不可用（Not Available）";
|
break;
|
case 0x00000080:
|
strRet = "脱机（Off Line）";
|
break;
|
case 0x00200000:
|
strRet = "内存溢出（Out of Memory）";
|
break;
|
case 0x00000800:
|
strRet = "输出口已满（Output Bin Full）";
|
break;
|
case 0x00080000:
|
strRet = "当前页无法打印（Page Punt）";
|
break;
|
case 0x00000008:
|
strRet = "塞纸（Paper Jam）";
|
break;
|
case 0x00000010:
|
strRet = "打印纸用完（Paper Out）";
|
break;
|
case 0x00000040:
|
strRet = "纸张问题（Page Problem）";
|
break;
|
case 0x00000001:
|
strRet = "暂停（Paused）";
|
break;
|
case 0x00000004:
|
strRet = "正在删除（Pending Deletion）";
|
break;
|
case 0x00000400:
|
strRet = "正在打印（Printing）";
|
break;
|
case 0x00004000:
|
strRet = "正在处理（Processing）";
|
break;
|
case 0x00020000:
|
strRet = "墨粉不足（Toner Low）";
|
break;
|
case 0x00100000:
|
strRet = "需要用户干预（User Intervention）";
|
break;
|
case 0x20000000:
|
strRet = "等待（Waiting）";
|
break;
|
case 0x00010000:
|
strRet = "热机中（Warming Up）";
|
break;
|
case 1048706:
|
strRet = "色带已用尽";
|
break;
|
default:
|
strRet = "未知状态（Unknown Status）";
|
break;
|
}
|
return strRet;
|
}
|
|
/// <summary>
|
/// 获取打印机正在打印的任务数(方式1)
|
/// </summary>
|
/// <returns></returns>
|
public static int GetTaskNumber()
|
{
|
IntPtr handle;
|
int FirstJob = 0;
|
int NumJobs = 127;
|
int pcbNeeded;
|
int pcReturned = -1;
|
OpenPrinter(printerName, out handle, IntPtr.Zero);
|
// get num bytes required, here we assume the maxt job for the printer quest is 128 (0..127)
|
EnumJobs(handle, FirstJob, NumJobs, 1, IntPtr.Zero, 0, out pcbNeeded, out pcReturned);
|
|
// allocate unmanaged memory
|
IntPtr pData = Marshal.AllocHGlobal(pcbNeeded);
|
|
// get structs
|
EnumJobs(handle, FirstJob, NumJobs, 1, pData, pcbNeeded, out pcbNeeded, out pcReturned);
|
|
return pcReturned;
|
}
|
#endregion
|
|
|
private void button3_Click(object sender, EventArgs e)
|
{
|
int taskNum = GetTaskNumber();
|
int statuscode = GetPrinterStatusCodeInt();
|
string status = GetPrinterStatusMessage(statuscode);
|
//只有在打印机异常时再次下发打印任务后，才能获取到打印机状态。这是因为打印机驱动程序通常只在处理打印请求时更新其状态信息。如果打印机没有接收到新的打印任务，可能无法立即反映出真实状态。
|
textBox2.Text = "taskNum:" + taskNum + ",statuscode:" + statuscode + ",status:" + status;
|
}
|
}
|
}
|
