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:
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
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
代码如下
QRCodeDecoder decoder = new QRCodeDecoder();
String decodedString = decoder.decode(new QRCodeBitmapImage(new Bitmap(pb_view.Image)));
txtEncodeData.Text = decodedString;
