c#调用打印机
using System;
using System.Collections.Generic;
using System.Text;
using System.Drawing;
using System.IO;
using System.Windows.Forms;
namespace TY_ClassLibrary
{
public class Printer
{
private Font printFont;
private Font titleFont;
private StringReader streamToPrint;
private int leftMargin = 0;
/// <summary>
/// 设置PrintDocument 的相关属性
/// </summary>
/// <param name="str">要打印的字符串</param>
public void print(string str)
{
try
{
streamToPrint = new StringReader(str);
printFont = new Font("宋体", 10);
titleFont = new Font("宋体", 15);
System.Drawing.Printing.PrintDocument pd = new System.Drawing.Printing.PrintDocument();
pd.PrinterSettings.PrinterName = "SmartPrinter";
pd.DocumentName = pd.PrinterSettings.MaximumCopies.ToString();
pd.PrintPage += new System.Drawing.Printing.PrintPageEventHandler(this.pd_PrintPage);
pd.PrintController = new System.Drawing.Printing.StandardPrintController();
pd.Print();
}
catch(Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
private void pd_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs ev)
{
float linesPerPage = 0;
float yPos = 0;
int count = 0;
float leftMargin = this.leftMargin;
float topMargin = 0;
String line = null;
linesPerPage = ev.MarginBounds.Height / printFont.GetHeight(ev.Graphics);
while (count < linesPerPage &&
((line = streamToPrint.ReadLine()) != null))
{
if (count == 0)
{
yPos = topMargin + (count * printFont.GetHeight(ev.Graphics));
ev.Graphics.DrawString(line, titleFont, Brushes.Black, leftMargin + 10, yPos, new StringFormat());
}
else
{
yPos = topMargin + (count * printFont.GetHeight(ev.Graphics));
ev.Graphics.DrawString(line, printFont, Brushes.Black, leftMargin, yPos, new StringFormat());
}
count++;
}
if (line != null)
ev.HasMorePages = true;
else
ev.HasMorePages = false;
}
}
}