c#简单打印

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Drawing.Printing;using System.Text;using System.Windows.Forms;using System.IO;namespace Project{    public partial class frmMain : Form    {        static public int m_cord_y = 0;        static public int m_cord_y_inc = 5;        public frmMain()        {            InitializeComponent();            Print();        }        /// <summary>        /// 调用此函数即可实现打印功能        /// </summary>        private void Print()        {            PrintDocument prnDoc = new PrintDocument();            PrintPreviewDialog predDlg = new PrintPreviewDialog();            //prnDlg.Document = prnDoc;            predDlg.Document = prnDoc;            //设置页面大小            PaperSize ppSize = new PaperSize("A4",MM2Atom(210), MM2Atom(297));            prnDoc.DefaultPageSettings.PaperSize = ppSize;            prnDoc.PrintPage += new PrintPageEventHandler(OnPrintPage);            predDlg.ShowDialog();                    }        /// <summary>        /// 在此处添加打印内容        /// </summary>        /// <param name="obj"></param>        /// <param name="ppea"></param>        private void OnPrintPage(Object obj, PrintPageEventArgs ppea)        {            Graphics grfx = ppea.Graphics;            AddCaption(grfx, ppea, "草廬對");            string[] str =             {            "自董卓已來，豪傑並起，跨州連郡者不可勝數。",            "曹操比於袁紹，則名微而眾寡",            "然操遂能克紹，以弱為彊者，非惟天命，抑亦人謀也。"            };            int index = 0;            while (index < str.Length)                AddContent(grfx, ppea, str[index++]);            AddSubContent(grfx,ppea,"打印日期："+System.DateTime.Now.ToString());            ppea.HasMorePages = false;                    }        /// <summary>        /// 添加打印正文        /// </summary>        /// <param name="grfx"></param>        /// <param name="ppea"></param>        /// <param name="str"></param>        private void AddContent(Graphics grfx, PrintPageEventArgs ppea,string str)        {            Font font = new Font("宋体", 12);            Brush brush = Brushes.Black;            PointF point = new PointF();                        point.X = MM2Atom(11);            point.Y = MM2Atom(41+m_cord_y);            m_cord_y = m_cord_y + m_cord_y_inc;            grfx.DrawString(str, font, brush, point);        }        /// <summary>        /// 添加页脚        /// </summary>        /// <param name="grfx"></param>        /// <param name="ppea"></param>        /// <param name="str"></param>        private void AddSubContent(Graphics grfx, PrintPageEventArgs ppea, string str)        {            Font font = new Font("宋体", 8);            Brush brush = Brushes.Black;            PointF point = new PointF();            point.X = MM2Atom(160);            point.Y = MM2Atom(280);            m_cord_y = m_cord_y + m_cord_y_inc;            grfx.DrawString(str, font, brush, point);        }        /// <summary>        /// 添加标题        /// </summary>        /// <param name="grfx"></param>        /// <param name="ppea"></param>        /// <param name="str"></param>        private void AddCaption(Graphics grfx, PrintPageEventArgs ppea,string str)        {            Font font = new Font("黑体", 16);            Pen pen = new Pen(Color.Black, 1);            Brush brush = Brushes.Black;            //显示数据图标            //grfx.DrawImageUnscaled(global::Project.Properties.Resources.br, MM2Atom(12), MM2Atom(11));            SizeF sizef = grfx.MeasureString(str, font);            grfx.DrawString(str, font, brush, (grfx.VisibleClipBounds.Width - sizef.Width) / 2, MM2Atom(12));        }        private int MM2Atom(double mm)        {            double foot = 304.8;    //1 foot equal 304.8 mm            double inch = foot / 12f;            double atomUnit = inch / 100;            return Convert.ToInt32(mm / atomUnit);        }         }}