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下载地址：http://zxingnet.codeplex.com/
zxing.net是.net平台下编解条形码和二维码的工具，使用非常方便。
首先下载二进制dll文件，引入工程；
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using ZXing.QrCode;
using ZXing;
using ZXing.Common;
using ZXing.Rendering;
namespace zxingTest
{
public partial class Form1 : Form
{
EncodingOptions options = null;
BarcodeWriter writer = null;
public Form1()
{
InitializeComponent();
options = new QrCodeEncodingOptions
{
DisableECI = true,
CharacterSet = "UTF-8",
Width = pictureBoxQr.Width,
Height = pictureBoxQr.Height
};
writer = new BarcodeWriter();
writer.Format = BarcodeFormat.QR_CODE;
writer.Options = options;
}
private void buttonQr_Click(object sender, EventArgs e)
{
if (textBoxText.Text == string.Empty)
{
MessageBox.Show("输入内容不能为空！");
return;
}
Bitmap bitmap = writer.Write(textBoxText.Text);
pictureBoxQr.Image = bitmap;
}
}
}
将字符编码时可以指定字符格式；默认为ISO-8859-1英文字符集，但一般移动设备常用UTF-8字符集编码，
可以通过QrCodeEncodingOptions设置编码方式。
如果要生成其他zxing支持的条形码，只要修改BarcodeWriter.Format就可以了
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using ZXing.QrCode;
using ZXing;
using ZXing.Common;
using ZXing.Rendering;
namespace zxingTest
{
public partial class Form1 : Form
{
EncodingOptions options = null;
BarcodeWriter writer = null;
public Form1()
{
InitializeComponent();
options = new EncodingOptions
{
//DisableECI = true,
//CharacterSet = "UTF-8",
Width = pictureBoxQr.Width,
Height = pictureBoxQr.Height
};
writer = new BarcodeWriter();
writer.Format = BarcodeFormat.ITF;
writer.Options = options;
}
private void buttonQr_Click(object sender, EventArgs e)
{
if (textBoxText.Text == string.Empty)
{
MessageBox.Show("输入内容不能为空！");
return;
}
Bitmap bitmap = writer.Write(textBoxText.Text);
pictureBoxQr.Image = bitmap;
}
}
}
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原文地址：http://www.cnblogs.com/bluestream/p/4899002.html
