最近手头有个项目，需要用到PDF417格式的二维码
请问哪位做过这方面的东西，提供一些资料，谢谢！
CSDN上有个PDF417的.NET类，不知道怎么生成图片，给出使用方法也可以！
再次感谢！
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有钱人,一出手就是200;
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友情帮顶
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如果你下到的代码，只有
SupportClass.cs
Pdf417lib.cs
那么就这样操作
1：新建一个winform项目，默认有了一个form1，然后把前面的两个cs添加进去
2：把Pdf417lib.cs里面的main()函数改个名字，比如叫main1()
3：把这个函数段拷贝到form1中
- C# code
public static Bitmap GenerateBitmap(string barcodeText, int hscale, int vscale) { Pdf417lib pd = new Pdf417lib(); pd.setText(barcodeText); pd.Options = Pdf417lib.PDF417_INVERT_BITMAP; pd.paintCode(); Bitmap bitmap = new Bitmap(pd.BitColumns * hscale, pd.CodeRows * vscale); Graphics g = Graphics.FromImage(bitmap); sbyte[] bits = pd.OutBits; int cols = (pd.BitColumns - 1) / 8 + 1; int row = -1; int bitcol = 0; for(int i=0; i < bits.Length; ++i) { if ((i % cols) == 0) { row++; bitcol = 0; } int value = bits[i]; for(int j = 7; j >= 0; j--) { int mask = (int) Math.Pow(2, j); if((value & mask) != 0) g.FillRectangle(Brushes.White, bitcol * hscale, row * vscale, hscale, vscale); else g.FillRectangle(Brushes.Black, bitcol * hscale, row * vscale, hscale, vscale); bitcol++; if(bitcol == pd.BitColumns) break; } } g.Dispose(); return bitmap; }
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up
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- C# code
using System;using System.Data;using System.Configuration;using System.Collections;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Drawing;using System.Drawing.Design;using System.Drawing.Drawing2D;using System.Drawing.Printing;using System.Drawing.Imaging;using System.IO;public partial class _Default : System.Web.UI.Page{ private string CreateCheckCodeString() { //定义用于验证码的字符数组 char[] AllCheckCodeArray ={ '0','1','2','3','4','5','6','7','8','9','A','B','C', 'D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W', 'X','Y','Z','a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q', 'r','s','t','u','v','w','x','y','z'}; //定义验证码字符串 string randomcode = ""; Random rd = new Random(); //生成4位验证码字符串 for (int i = 0; i < 8; i++) randomcode += AllCheckCodeArray[rd.Next(AllCheckCodeArray.Length)]; return randomcode; } //生成验证码图片 protected void Page_Load(object sender, EventArgs e) { //定义图片的宽度 int ImageWidth = 80; //定义图片高度 int ImageHeigh = 25; //定义字体，用于绘制文字 Font font = new Font("Arial", 10, FontStyle.Bold); //定义画笔，用于绘制文字 Brush brush = new SolidBrush(Color.Black); //定义钢笔，用于绘制干扰线 Pen pen1 = new Pen(Color.FromArgb(255, 100, 100), 0);//这里也可以直接获得一个现有的color对象如：Color.Gold.我是为了美观所以定义和下面一样 Pen pen2 = new Pen(Color.FromArgb(255, 100, 100), 0);//这里根据ARGB值定义获得了一个color对象 //创建一个图像 Bitmap BitImage = new Bitmap(ImageWidth, ImageHeigh); //从图像获取一个绘画面 Graphics graphics = Graphics.FromImage(BitImage); //清除整个绘图画面并用颜色填充 graphics.Clear(ColorTranslator.FromHtml("#F0F0F0"));//这里从HTML代码获取color对象 //定义文字的绘制矩形区域 RectangleF rect = new RectangleF(5, 2, ImageWidth, ImageHeigh); //定义一个随机数对象，用于绘制干扰线 Random rand = new Random(); //生成两条横向的干扰线 for (int i = 0; i < 2; i++) { //定义起点 Point p1 = new Point(0, rand.Next(ImageHeigh)); //定义终点 Point p2 = new Point(ImageWidth, rand.Next(ImageHeigh)); //绘制直线 graphics.DrawLine(pen1, p1, p2); } //生成两条纵向的干扰线 for (int i = 0; i < 2; i++) { //定义起点 Point p1 = new Point(rand.Next(ImageWidth), 0); //定义终点 Point p2 = new Point(rand.Next(ImageWidth), ImageHeigh); //绘制直线 graphics.DrawLine(pen2, p1, p2); } //绘制验证码文字 graphics.DrawString(CreateCheckCodeString(), font, brush, rect); //保存图片为gif格式 BitImage.Save(Response.OutputStream, ImageFormat.Gif); //释放对象 graphics.Dispose(); BitImage.Dispose(); _Default a = new _Default(); Session["xyz"] = a.CreateCheckCodeString(); }}
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http://download.csdn.net/down/376426/andy1016
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呵，我来学习