VS2010 C#窗體應用程式利用QRCode生成二維碼

1.引入ThoughtWorks.QRCode.dll類庫到程式中

ThoughtWorks.QRCode.dll下載下傳位址

在工程的右邊解決方案中添加引用–>浏覽–>找到下載下傳後存放ThoughtWorks.QRCode.dll路徑，然後選擇ThoughtWorks.QRCode.dll類庫---->确定

2.建立MyQR.cs類 用來生成和解析二維碼

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using ThoughtWorks.QRCode.Codec;
using System.Drawing;
using ThoughtWorks.QRCode.Codec.Data;
 
namespace ProductQR
{
    public class MyQR
    {
        /// <summary>
        /// 生成二維碼
        /// </summary>
        /// <param name="barcodeText">文本</param>
        /// <returns>圖檔</returns>
        public Bitmap BarcodeImage(String barcodeText)
        {
 
            QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
            qrCodeEncoder.QRCodeVersion = 0;
            Bitmap img = qrCodeEncoder.Encode(barcodeText, Encoding.UTF8);//指定utf-8編碼， 支援中文
            return img;
 
            //string httpFileName = System.Environment.CurrentDirectory;
            //string fileName = "/a.jpg";
            //img.Save(httpFileName + fileName);//儲存位圖 
        }
 
        /// <summary>
        /// 解析二維碼文本
        /// </summary>
        /// <param name="bitmap">圖檔對象</param>
        /// <returns></returns>
        public string QRCodeDecoderUtil(Bitmap bitmap)
        {
            QRCodeDecoder decoder = new QRCodeDecoder();
            string decodedString = "";
            try
            {
                decodedString = decoder.decode(new QRCodeBitmapImage(bitmap), Encoding.UTF8);//指定utf-8編碼， 支援中文  
            }
            catch (Exception e)
            {
                return "請先生成二維碼！";
            }
            return decodedString;
        }
    } 
}
           

測試類Form1.cs

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;
 
namespace ProductQR
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
 
        private void button1_Click(object sender, EventArgs e)
        {
            MyQR d = new MyQR();
            Bitmap b=  d.BarcodeImage(textBox1.Text.ToString());
            MessageBox.Show("ok!");
            pictureBox1.Image = b;
        }
 
        private void button2_Click(object sender, EventArgs e)
        {
            MyQR d = new MyQR();
            MessageBox.Show(d.QRCodeDecoderUtil((Bitmap)this.pictureBox1.Image));
        }
    }
}