條形碼在生活中使用的已經相當廣泛了，不管是去書店買書，還是去超市買商品，都會用到條碼，而且每一個條碼中的信息都不盡相同，每一類的商品都有統一的條 碼，當然條碼的類型也有不同，比如有標準的UPC條碼，也有Code39，Code128，EAN8等等好多好多。這些根據不同的需要而被廣泛使用。

      最近根據項目的需求，用了一段時間對一維碼、二維碼進行了小小的研究，在一篇Blog中看到使用了google的zxing生成二維碼，好奇之下自己做了一個小Demo。

生成一維碼

生成二維碼

#region 引用程序集

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using com.google.zxing.qrcode;

using com.google.zxing;

using com.google.zxing.common;

using ByteMatrix = com.google.zxing.common.ByteMatrix;

using EAN13Writer = com.google.zxing.oned.EAN13Writer;

using EAN8Writer = com.google.zxing.oned.EAN8Writer;

using MultiFormatWriter = com.google.zxing.MultiFormatWriter;

endregion
namespace qr

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            // 初始化組件

            InitializeComponent();

        }

    //  public static void writeToFile(ByteMatrix matrix, System.Drawing.Imaging.ImageFormat format, string file)  
    //{  
    //    Bitmap bmap = toBitmap(matrix);  
    //    bmap.Save(file, format);  
    //}  
    /// <summary>  
    /// 繪制一維碼、二維碼位圖  
    /// </summary>  
    /// <param name="matrix"></param>  
    /// <returns></returns>  
    public static Bitmap toBitmap(ByteMatrix matrix)     
    {  
        // 定義位圖的款和高  
        int width = matrix.Width;  
        int height = matrix.Height;     

        Bitmap bmap = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);     
        for (int x = 0; x < width; x++)     
        {     
            for (int y = 0; y < height; y++)     
            {     
                bmap.SetPixel(x, y, matrix.get_Renamed(x, y) != -1 ? ColorTranslator.FromHtml("0xFF000000") : ColorTranslator.FromHtml("0xFFFFFFFF"));     
            }     
        }     
        return bmap;                 
    }  

    private void button1_Click_1(object sender, EventArgs e)  
    {  
        string content = textBox1.Text;  
        int codeWidth = Convert.ToInt16(txtWidth.Text.Trim().ToString());  
        int codeHeight = Convert.ToInt16(txtHeight.Text.Trim().ToString());  
        // 生成二維碼  
        ByteMatrix byteMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, codeWidth, codeHeight);  
        Bitmap bitmap = toBitmap(byteMatrix);  
        pictureBox1.Image = bitmap;  
        //writeToFile(byteMatrix, System.Drawing.Imaging.ImageFormat.Png, sFD.FileName);  
        //SaveFileDialog sFD = new SaveFileDialog();  
        //sFD.DefaultExt = "*.png|*.png";  
        //sFD.AddExtension = true;  
        //try  
        //{  
        //    if (sFD.ShowDialog() == DialogResult.OK)  
        //    {  

        //    }  
        //}  
        //catch (Exception ex)  
        //{  
        //    MessageBox.Show(ex.Message);  
        //}  
    }  

    private void button2_Click(object sender, EventArgs e)  
    {  
        string content = textBox1.Text;  
        // 生成一維碼  
        ByteMatrix byteMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.EAN_8, 200, 100);  
        Bitmap bitmap = toBitmap(byteMatrix);  
        pictureBox1.Image = bitmap;  

        //Bitmap twobitmap = new Bitmap(bitmap.Width ,bitmap.Height);  
        //Graphics g = Graphics.FromImage(bitmap);  
        //g.DrawString(content, Font, Brushes.Black, pictureBox1.);  
        //pictureBox1.Image = bitmap;  

    }   
}  

}  </pre> 


 
 
 來自：http://blog.csdn.net/happylee6688/article/details/8446203