C#调用系统打印机(XP-58小票打印)

C#调用系统打印机(XP-58小票打印)
需要安装XP-58驱动。

// An highlighted block
using System;
using System.Drawing;
using System.Drawing.Printing;
using System.Globalization;
using System.Management;
using System.Windows.Forms;namespace 实验
{public class USBPrinter{private string defaultPrinter;//private string streamtext;private PrintDocument docToPrint = new PrintDocument();//创建一个PrintDocument的实例private string carCardNum;private string trashTypeName;private string trashWeight;private string driverUserName;private string loginUserName;public USBPrinter(){//// TODO: 在此处添加构造函数逻辑////this.docToPrint.DefaultPageSettings.PaperSize = new PaperSize("Custum", default, 600);this.docToPrint.PrintPage += new PrintPageEventHandler(DocToPrint_PrintPage);}//将事件处理函数添加到PrintDocument的PrintPage中public bool IsDefaultPrinter(){using (PrintDocument pd = new PrintDocument()){string sDefault = pd.PrinterSettings.PrinterName;//默认打印机名//MessageBox.Show(sDefault);if (sDefault == "XP-58"){defaultPrinter = sDefault;return true;}else{defaultPrinter = "默认打印机不是XP-58";return false;}}}public enum PrinterStatus{其他状态 = 1, //比如 暂停状态未知,空闲, //就绪状态正在打印,预热,停止打印,打印中,离线 //脱机 状态}public PrinterStatus GetPrinterStat(string PrinterDevice){PrinterStatus ret = 0;string path = @"win32_printer.DeviceId='" + PrinterDevice + "'";ManagementObject printer = new ManagementObject(path);printer.Get();if ((bool)printer.Properties["WorkOffline"].Value){return PrinterStatus.离线;//MessageBox.Show("离线");}else{ret = (PrinterStatus)Convert.ToInt32(printer.Properties["PrinterStatus"].Value);//MessageBox.Show(Convert.ToString(printer.Properties["PrinterStatus"].Value));return ret;}}public void StartPrint(string carCardNum, string trashTypeName, string trashWeight, string driverUserName, string loginUserName){//this.streamtext = text;this.carCardNum = carCardNum;this.trashTypeName = trashTypeName;this.trashWeight = trashWeight;this.driverUserName = driverUserName;this.loginUserName = loginUserName;if (IsDefaultPrinter()){docToPrint.Print();}else{MessageBox.Show(defaultPrinter);}Release();}private void DocToPrint_PrintPage(object sender, PrintPageEventArgs e)//设置打印机开始打印的事件处理函数 e.MarginBounds.Y{e.Graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;e.Graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;//像素偏移方式，像素在水平和垂直距离上均偏移若干个单位，以进行高速锯齿消除。e.Graphics.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.Half;//也可以通过设置Graphics对不平平滑处理方式解决，代码如下： //e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;Font printFont = new Font("Arial", (float)9.3, FontStyle.Regular);//StringFormat stringFormat = new StringFormat();// Draw the content.//string text = streamtext;//e.Graphics.DrawString(text, printFont, System.Drawing.Brushes.Black, 0, 0);int marginTop = 10;int dis = 25;e.Graphics.DrawString(" ", printFont, Brushes.Black, 0, 0);e.Graphics.DrawString("回收凭条", new Font("Arial", 10, FontStyle.Bold), Brushes.Black, 63, marginTop + dis * 2);e.Graphics.DrawString("时        间: " + DateTime.Now.ToString("G", CultureInfo.CreateSpecificCulture("zh-CN")), printFont, Brushes.Black, 0, marginTop + dis * 4);e.Graphics.DrawString("回收类型: " + trashTypeName, printFont, Brushes.Black, 0, marginTop + dis * 5);e.Graphics.DrawString("回收净重: " + trashWeight + "kg", printFont, Brushes.Black, 0, marginTop + dis * 6);e.Graphics.DrawString(".", printFont, Brushes.Gray, 0, dis * 11 + 15);}private void Release(){docToPrint.Dispose();trashTypeName = null;trashWeight = null;carCardNum = null;driverUserName = null;loginUserName = null;}}
}

在form窗口调用

USBPrinter printer = new USBPrinter();printer.IsDefaultPrinter();//MessageBox.Show(printer.GetPrinterStat("XP-58").ToString());try{//if (printer.GetPrinterStat("XP-58").ToString() == "离线")//{//    MessageBox.Show("打印机XP-58未连接");//    return;//}//else if (printer.GetPrinterStat("XP-58").ToString() == "其他状态" || printer.GetPrinterStat("XP-58").ToString() == "未知")//{//    MessageBox.Show("打印机XP-58连接出错");//    return;//}printer.StartPrint("111", "111", "111", "111", "111");}catch (Exception ex){MessageBox.Show(ex.Message);}

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