C#实现打印功能代码实现下载

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Drawing.Printing;
using System.Collections;
using System.IO;

namespace PrintDocDemo
{
    public partial class frmPrint : Form
    {
        string[] lines;//保存读入的源文件
        public PrintDocument pd;//打印文档对象
        Font printfont;//打印使用的字体
        int curline;//缓冲区的当前行

        public frmPrint()
        {
            InitializeComponent();
            pd = new PrintDocument();//创建打印文档实例
            //为打印文档PrintDocument事件绑定处理方法
            pd.PrintPage += new PrintPageEventHandler(this.PrintEveryPage);
            //创建打印使用的字体
            printfont = new Font("宋体", 9.5f);
            curline = 0;  
        }

        //打印每一页
        private void PrintEveryPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
        {
            float fltLines = 0;//一页中的行数
            float fltYPos = 0;//每行的Y坐标
            int nCount = 0;//已打印行数
            float fltLeftMargin = e.MarginBounds.Left;//获取打印的起始位置
            float fltTopMargin = e.MarginBounds.Top;

            //计算一页中的行数
            fltLines = e.MarginBounds.Height / printfont.GetHeight (e.Graphics);
            //打印一页
            while (nCount < fltLines && (nCount + curline < lines.Length))
            {
                fltYPos = fltTopMargin + (nCount * printfont.GetHeight(e.Graphics));
                e.Graphics.DrawString(lines[curline + nCount], printfont, Brushes.Black, fltLeftMargin, fltYPos);
                nCount++;
            }
            curline += nCount;

            //如果未到达文件末尾，则继续打印
            if (curline < lines.Length)
                e.HasMorePages = true;
            else      //否则停止打印
            {
                e.HasMorePages = false;
                curline = 0;
            }
        }