public static int GetSizeToCIS(this QRCodeSize t)
{
switch (t)
{
case QRCodeSize.SMALL:
return(10);
case QRCodeSize.MEDIUM:
return(20);
case QRCodeSize.LARGE:
return(30);
default:
return(40);
}
}
public static int GetSizeToRongta(this QRCodeSize t)
{
switch (t)
{
case QRCodeSize.SMALL:
return(1);
case QRCodeSize.MEDIUM:
return(3);
case QRCodeSize.LARGE:
return(6);
default:
return(9);
}
}
public static int GetSizeToDatec(this QRCodeSize t)
{
switch (t)
{
case QRCodeSize.SMALL:
return(2);
case QRCodeSize.MEDIUM:
return(6);
case QRCodeSize.LARGE:
return(10);
default:
return(14);
}
}
public static int GetSizeToNitere(this QRCodeSize t)
{
switch (t)
{
case QRCodeSize.SMALL:
return(2);
case QRCodeSize.MEDIUM:
return(4);
case QRCodeSize.LARGE:
return(6);
default:
return(8);
}
}
private string GenerateQRCodeUrl(string content, QRCodeSize size, QRErrorCorrection errorCorrection)
{
var baseUrl = "http://chart.apis.google.com/chart?cht=qr&chs={0}x{0}&chld={1}&choe=UTF-8&chl={2}";
return(string.Format(baseUrl, (int)size, errorCorrection.ToString(), Uri.EscapeDataString(content)));
}
/// <summary>
/// GS ( k pL pH cn fn n1 n2
/// </summary>
/// <exception cref="ArgumentNullException"><paramref name="content"/> is <see langword="null"/>.</exception>
public static byte[] PrintQRCode(string content, QRCodeModel qrCodemodel = QRCodeModel.Model1, QRCodeCorrection qrodeCorrection = QRCodeCorrection.Percent7, QRCodeSize qrCodeSize = QRCodeSize.Normal)
{
var model = new byte[] { 0x1D, 0x28, 0x6B, 0x04, 0x00, 0x31, 0x41, (byte)qrCodemodel, 0x00 };
var size = new byte[] { 0x1D, 0x28, 0x6B, 0x03, 0x00, 0x31, 0x43, (byte)qrCodeSize };
var errorCorrection = new byte[] { 0x1D, 0x28, 0x6B, 0x03, 0x00, 0x31, 0x45, (byte)qrodeCorrection };
int num = content.Length + 3;
int pL = num % 256;
int pH = num / 256;
var storeData = new byte[] { 0x1D, 0x28, 0x6B, (byte)pL, (byte)pH, 0x31, 0x50, 0x30 };
var data = Encoding.UTF8.GetBytes(content);
var print = new byte[] { 0x1D, 0x28, 0x6B, 0x03, 0x00, 0x31, 0x51, 0x30 };
return(model.Add(size, errorCorrection, storeData, data, print));
}
private string GenerateQRCodeUrl(string content, QRCodeSize size, QRErrorCorrection errorCorrection)
{
var baseUrl = "http://chart.apis.google.com/chart?cht=qr&chs={0}x{0}&chld={1}&choe=UTF-8&chl={2}";
return string.Format(baseUrl, (int)size, errorCorrection.ToString(), Uri.EscapeDataString(content));
}