public static Image GetQRCode(byte[] data, ErrorCorrectionLevel level = ErrorCorrectionLevel.M)
{
bool requires16BitLength = false;
int maxBytesInVersion9Code = QRErrorCorrections.GetQRVersionInfo(9).GetCorrectionInfo(level).TotalDataBytes;
if (maxBytesInVersion9Code - 2 < data.Length)
{
// This data requires a version 10 or higher code; will not fit in version 9 or lower.
// Version 10 and higher codes require 16-bit data lengths.
requires16BitLength = true;
}
StreamHelper sh = new StreamHelper();
sh.WriteNibble(0x04); // byte mode
if (requires16BitLength)
{
sh.WriteWord((ushort)data.Length);
}
else
{
sh.WriteByte((byte)data.Length);
}
sh.WriteBytes(new ArraySegment <byte>(data));
sh.WriteNibble(0x00); // terminator
byte[] binaryData = sh.ToArray();
int qrCodeVersion;
ErrorCorrectionLevel errorCorrectionLevel;
byte[] finalMessageSequence = QRErrorCorrections.GetMessageSequence(binaryData, level, out qrCodeVersion, out errorCorrectionLevel);
SymbolTemplate template = SymbolTemplate.CreateTemplate(qrCodeVersion);
template.ErrorCorrectionLevel = errorCorrectionLevel;
template.PopulateData(finalMessageSequence);
template.Complete();
return(template.ToImage());
}
public static Image GetQRCode(byte[] data, ErrorCorrectionLevel level = ErrorCorrectionLevel.M)
{
bool requires16BitLength = false;
int maxBytesInVersion9Code = QRErrorCorrections.GetQRVersionInfo(9).GetCorrectionInfo(level).TotalDataBytes;
if (maxBytesInVersion9Code - 2 < data.Length)
{
// This data requires a version 10 or higher code; will not fit in version 9 or lower.
// Version 10 and higher codes require 16-bit data lengths.
requires16BitLength = true;
}
StreamHelper sh = new StreamHelper();
sh.WriteNibble(0x04); // byte mode
if (requires16BitLength)
{
sh.WriteWord((ushort)data.Length);
}
else
{
sh.WriteByte((byte)data.Length);
}
sh.WriteBytes(new ArraySegment<byte>(data));
sh.WriteNibble(0x00); // terminator
byte[] binaryData = sh.ToArray();
int qrCodeVersion;
ErrorCorrectionLevel errorCorrectionLevel;
byte[] finalMessageSequence = QRErrorCorrections.GetMessageSequence(binaryData, level, out qrCodeVersion, out errorCorrectionLevel);
SymbolTemplate template = SymbolTemplate.CreateTemplate(qrCodeVersion);
template.ErrorCorrectionLevel = errorCorrectionLevel;
template.PopulateData(finalMessageSequence);
template.Complete();
return template.ToImage();
}
