/// <summary>
/// 创建二维码
/// </summary>
/// <param name="content"></param>
/// <returns></returns>
public static string Create(string str, int _size, string destImg = "", bool _combin = false, QRCodeLevel _levet = QRCodeLevel.M, QRCodeVersion _ver = QRCodeVersion.A, QRCodeType _type = QRCodeType.Byte)
{
var _result = string.Empty;
var fullpath = string.Empty;
var filepath = System.Web.HttpContext.Current.Server.MapPath(@"~\QRCode\upload") + "\\";
if (string.IsNullOrEmpty(destImg))
{
destImg = filepath + "favicon.png";
}
if (string.IsNullOrEmpty(str))
{
_result = "[{\"status\":0,\"count\":1,\"content\":\"" + "亲内容去哪里了".ChinessConvertToUnicodeString() + "\"}]";
return _result;
}
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
String encoding = _type.ToString();
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 = _size;
qrCodeEncoder.QRCodeScale = scale;
}
catch (Exception ex)
{
//throw new Exception(ex.ToString());
_result = "[{\"status\":0,\"count\":1,\"content\":\"" + "大小设置出错".ChinessConvertToUnicodeString() + "\"}]";
return _result;
}
try
{
int version = Convert.ToInt16(_ver);
qrCodeEncoder.QRCodeVersion = version + 1;
}
catch (Exception ex)
{
//throw new Exception(ex.ToString());
_result = "[{\"status\":0,\"count\":1,\"content\":\"" + "版本设置出错".ChinessConvertToUnicodeString() + "\"}]";
return _result;
}
string errorCorrect = _levet.ToString();
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;
image = qrCodeEncoder.Encode(ConverToGB(str, 16));
var filename = Guid.NewGuid().ToString() + ".png";
fullpath = filepath + filename;
if (!Directory.Exists(filepath))
{
Directory.CreateDirectory(filepath);
}
fullpath = filepath + filename;
if (_combin)
{
CombinImage(image, destImg, true);
}
image.Dispose();
_result = "[{\"status\":1,\"count\":1,\"content\":\"" + str + "\",\"list\":[{\"imgurl\":\"" + fullpath + "\"}]}]";
return _result;
}
/// <summary>
/// Generates a QR code with specified error correction level, version, and pixel scaling from the input data and returns the QR code image as an array of bytes.
/// </summary>
/// <param name="data">The user data for encoding.</param>
/// <param name="encoding">The QR code encoding.</param>
/// <param name="levelCorrection">The level of error correction.</param>
/// <param name="version">The QR code version.</param>
/// <param name="scaleMultiplier">The pixel scaling of the resulting QR code image.</param>
/// <returns>byte[]</returns>
public static byte[] GetQRCode(string data, QRCodeEncodingMethod encoding, QRCodeErrorCorrection levelCorrection, QRCodeVersion version, int scaleMultiplier = 1)
{
return(GetQRCode(data, encoding, levelCorrection, version, scaleMultiplier, Color.Black, Color.White));
}
public void LoadQRCode(string encode_data, QRCodeVersion version)
{
QRCode = Images.GenerateQRCodeByte(RemoveAccentsWithNormalization(encode_data), new QRCodeParams(version));
}
public QRCodeParams(QRCodeVersion version)
{
Init(version);
}
/// <summary>
/// Renders a QR code on bitmap from the encoded data and returns an array of bytes.
/// </summary>
/// <param name="data">The user data for encoding.</param>
/// <param name="encoding">The QR code encoding.</param>
/// <param name="levelCorrection">The level of error correction.</param>
/// <param name="version">The QR code version.</param>
/// <param name="scaleMultiplier">The pixel scaling of the resulting QR code image.</param>
/// <param name="foregroundColor">The QR code color.</param>
/// <param name="backgroundColor">The background color.</param>
/// <param name="quietZone">The size of the quiet zone.</param>
/// <returns>byte[]</returns>
internal static byte[] GetQRCodeImage(string data, QRCodeEncodingMethod encoding, QRCodeErrorCorrection levelCorrection, QRCodeVersion version, int scaleMultiplier, Color foregroundColor, Color backgroundColor, int quietZone = 4)
{
if (!Enum.IsDefined(typeof(QRCodeVersion), version))
{
throw new ArgumentOutOfRangeException();
}
// Only the binary method is implemented
if (encoding != QRCodeEncodingMethod.Binary)
{
throw new NotImplementedException();
}
int numVersion;
if (version == QRCodeVersion.Automatic)
{
numVersion = (int)QRCodesUtils.GetMinVersionForBinaryMode(data, levelCorrection);
}
else
{
numVersion = (int)version;
}
var numberMask = 4;
// Get the image data array
byte[] dataBinary = QRCodesEncoder.EncodeQRCodeData(data, numVersion, levelCorrection);
// Create a bitmap for the QR code
var bitmapSource = CreateBitmap(dataBinary, numVersion, numberMask, levelCorrection,
new SolidBrush(foregroundColor),
new SolidBrush(backgroundColor),
quietZone);
// Pixel scaling
var bitmap = QRCodesUtils.Scale(bitmapSource, scaleMultiplier);
// Save the resulting image in the PNG format
var memStream = new MemoryStream();
bitmap.Save(memStream, System.Drawing.Imaging.ImageFormat.Png);
memStream.Flush();
var qrData = memStream.ToArray();
memStream.Close();
return(qrData);
}
