zxing 实现二维条码的读写！

在网络上找的代码，自己测试了一下可以使用。开发工具visual studio 2008+zxing ;

不过我的想法是最终实现用摄像头来识别datamatrix码。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using com.google.zxing;

using COMMON = com.google.zxing.common;

namespace DataMatrix
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void btCreate_Click(object sender, EventArgs e)
        {
            SaveFileDialog sfd = new SaveFileDialog();
            sfd.DefaultExt = "*.png|*.png";
            sfd.AddExtension = true;

            try
            {
                if (sfd.ShowDialog() == DialogResult.OK)
                {
                    string content = "my phone：110119112118;phone model：Blackberry 8100";
                   
                    COMMON.ByteMatrix byteMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, 450, 450);
                    writeToFile(byteMatrix, System.Drawing.Imaging.ImageFormat.Png, sfd.FileName);
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
        }

        public static void writeToFile(COMMON.ByteMatrix matrix, System.Drawing.Imaging.ImageFormat format, string file)
        {
            Bitmap bmap = toBitmap(matrix);
            bmap.Save(file, format);
        }
        public static Bitmap toBitmap(COMMON.ByteMatrix matrix)
        {
            int width = matrix.Width;
            int height = matrix.Height;
           // System.Drawing.Imaging.PixelFormat.
            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 btRecognize_Click(object sender, EventArgs e)
        {
            if (this.openFileDialog1.ShowDialog() != DialogResult.OK)
            {
                return;
            }
            Image img = Image.FromFile(this.openFileDialog1.FileName);
            Bitmap bmap;
            pbImage.Image=img;
            try
            {
                bmap = new Bitmap(img);
            }
            catch (System.IO.IOException ioe)
            {
                MessageBox.Show(ioe.ToString());
                return;
            }
            if (bmap == null)
            {
                MessageBox.Show("Could not decode image");
                return;
            }
            LuminanceSource source = new RGBLuminanceSource(bmap, bmap.Width, bmap.Height);
            com.google.zxing.BinaryBitmap bitmap = new com.google.zxing.BinaryBitmap(new COMMON.HybridBinarizer(source));
            Result result;
            try
            {
                result = new MultiFormatReader().decode(bitmap);
            }
            catch (ReaderException re)
            {
                MessageBox.Show(re.ToString());
                return;
            }

            MessageBox.Show(result.Text); 

        }

 
    }
}