类库文件我们在文件最后面下载

【ThoughtWorks.QRCode.dll 就是类库】

使用时需要增加:

复制代码 代码如下:

using ThoughtWorks.QRCode.Codec;

using ThoughtWorks.QRCode.Codec.Data;

using ThoughtWorks.QRCode.Codec.Util;

主要源代码：

1.生成二维码

复制代码 代码如下:

QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();

String encoding = cboEncoding.Text;

if (encoding == "Byte")

{

qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;

}

else if (encoding == "AlphaNumeric")

{

qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.ALPHA_NUMERIC;

}

else if (encoding == "Numeric")

{

qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.NUMERIC;

}

try

{

int scale = Convert.ToInt16(txtSize.Text);

qrCodeEncoder.QRCodeScale = scale;

}

catch (Exception ex)

{

MessageBox.Show("Invalid size!");

return;

}

try

{

int version = Convert.ToInt16(cboVersion.Text);

qrCodeEncoder.QRCodeVersion = version;

}

catch (Exception ex)

{

MessageBox.Show("Invalid version !");

}

string errorCorrect = cboCorrectionLevel.Text;

if (errorCorrect == "L")

qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;

else if (errorCorrect == "M")

qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;

else if (errorCorrect == "Q")

qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.Q;

else if (errorCorrect == "H")

qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;

Image image;

String data = txtEncodeData.Text;

image = qrCodeEncoder.Encode(data);

pb_view.Image = image;

2.解析二维码

复制代码 代码如下:

QRCodeDecoder decoder = new QRCodeDecoder();

String decodedString = decoder.decode(new QRCodeBitmapImage(new Bitmap(pb_view.Image)));

txtEncodeData.Text = decodedString;