c# QR code establishment and recognition

QrCodeEncodingOptions options = new QrCodeEncodingOptions();

options.CharacterSet = "UTF-8" ;

options.DisableECI = true ; // Extended Channel Interpretation (ECI) 主要用于特殊的字符集。并不是所有的扫描器都支持这种编码。

options.ErrorCorrection = ZXing.QrCode.Internal.ErrorCorrectionLevel.H; // 纠错级别

options.Width = 300;

options.Height = 300;

options.Margin = 1;

// options.Hints，更多属性，也可以在这里添加。

 

BarcodeWriter writer = new BarcodeWriter();

writer.Format = BarcodeFormat.QR_CODE;

writer.Options = options;

 

Response.Clear();

using (Bitmap bmp = writer.Write( "http://www.cftea.com" )) // Write 具备生成、写入两个功能

{

  MemoryStream ms = new MemoryStream();

  {

   bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Png);

 

   Response.ContentType = "image/png" ;

   Response.BinaryWrite(ms.ToArray());

  }

}

Response.End();

 

 

 

QrCodeEncodingOptions options = new QrCodeEncodingOptions();

options.CharacterSet = "UTF-8" ;

options.Width = 300;

options.Height = 50;

options.Margin = 1;

options.PureBarcode = false ; // 是否是纯码，如果为 false，则会在图片下方显示数字

 

BarcodeWriter writer = new BarcodeWriter();

writer.Format = BarcodeFormat.CODE_128;

writer.Options = options;

 

Response.Clear();

using (Bitmap bmp = writer.Write( "12345678" ))

{

  MemoryStream ms = new MemoryStream();

  {

   bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Png);

 

   Response.ContentType = "image/png" ;

   Response.BinaryWrite(ms.ToArray());

  }

}

Response.End();

 

 

BarcodeReader reader = new BarcodeReader();

reader.Options.CharacterSet = "UTF-8" ;

using (Bitmap bmp = new Bitmap( "D:\\qr.png" ))

{

  Result result = reader.Decode(bmp);

  Response.Write(result.Text);

}