public void SaveQrCode(string data, string filename, QRCoder.QRCodeGenerator.ECCLevel err_cor)
{
QRCoder.QRCodeData qr_data = qgen.CreateQrCode(data, err_cor);
qrCode = new QRCoder.QRCode(qr_data);
bitmap = qrCode.GetGraphic(100, Color.Black, Color.White, false);
bitmap.Save(filename);
}
/// <summary>
/// Рисует QR код
/// </summary>
/// <param name="data">данный</param>
/// <param name="g">объект графики</param>
/// <param name="z">размер квадрата</param>
/// <param name="p">координаты левого верхнего угла</param>
/// <param name="err_cor">уровень коррекции ошибок</param>
public void DrawQrCode(string data, Graphics g, int z, PointF p, QRCoder.QRCodeGenerator.ECCLevel err_cor)
{
QRCoder.QRCodeData qr_data = qgen.CreateQrCode(data, err_cor);
qrCode = new QRCoder.QRCode(qr_data);
bitmap = qrCode.GetGraphic(10, Color.Black, Color.White, false);
float h = z * (float)3.779527559055;
g.DrawImage(bitmap, p.X, p.Y, h, h);
}
public static string GetQRCodeEmbeddedImg(string identity, byte[] secret, QRCoder.QRCodeGenerator.ECCLevel size)
{
string base32Secret = GetSecretCode(secret);
string keyUri = string.Format("otpauth://totp/{0}?secret={1}", System.Web.HttpUtility.UrlEncode(identity), base32Secret);
QRCoder.QRCodeGenerator qrGenerator = new QRCoder.QRCodeGenerator();
QRCoder.QRCodeData qrCodeData = qrGenerator.CreateQrCode(keyUri, size);
QRCoder.QRCode qrCode = new QRCoder.QRCode(qrCodeData);
Bitmap qrCodeImage = qrCode.GetGraphic(size == QRCoder.QRCodeGenerator.ECCLevel.L ? 5 : (size == QRCoder.QRCodeGenerator.ECCLevel.M || size == QRCoder.QRCodeGenerator.ECCLevel.H ? 10 : 20));
using (MemoryStream ms = new MemoryStream())
{
qrCodeImage.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
byte[] png = ms.GetBuffer();
string imageUrl = "data:image/png;base64," + Convert.ToBase64String(png);
return(imageUrl);
}
}
private void SetQrCoder()
{
string context = textBoxContext.Text.Trim();
string strLevel = CEELevel.SelectedItem.ToString();
QRCoder.QRCodeGenerator.ECCLevel level = default(QRCoder.QRCodeGenerator.ECCLevel);
if (!Enum.TryParse(strLevel, out level))
{
MessageBox.Show("未知纠错码等级！");
}
using (QRCoder.QRCodeGenerator cenerator = new QRCoder.QRCodeGenerator())
{
var qrCodeData = cenerator.CreateQrCode(context, level, true);
using (QRCoder.QRCode rCode = new QRCoder.QRCode(qrCodeData))
{
this.pictureBox1.Image = rCode.GetGraphic(10, Color.Black, Color.White, icon: GetIconBitmap(), iconSizePercent: (int)textBoxImageSize.Value);
pictureBox1.Size = new Size(pictureBox1.Width, pictureBox1.Height);
this.pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
}
}
}