/// <summary>
/// 创建临时二维码画布
/// </summary>
/// <param name="content">二维码内容</param>
/// <returns></returns>
public static Bitmap CreateTempQRCode(string content)
{
GDataBase.MyGT gt = new GDataBase.MyGT();
if (string.IsNullOrEmpty(content))
{
return(null);
}
string filename = string.Empty;
string filepath = string.Empty;
string txt_qr = content;
string qrEncoding = "Byte";
string Level = "L";
string txt_ver = "10";
string txt_size = "10";
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
String encoding = qrEncoding;
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(txt_size);
qrCodeEncoder.QRCodeScale = scale;
}
catch (Exception ex)
{
gt.WriteFile(ex.Message);
}
try
{
int version = Convert.ToInt16(txt_ver);
qrCodeEncoder.QRCodeVersion = version;
}
catch (Exception ex)
{
gt.WriteFile(ex.Message);
}
qrCodeEncoder.QRCodeScale = 4;
qrCodeEncoder.QRCodeVersion = 0;
string errorCorrect = Level;
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;
}
String data = txt_qr;
return(qrCodeEncoder.Encode(data));
}
/// <summary>
/// 创建并保存到本地
/// </summary>
/// <param name="content">二维码内容</param>
/// <param name="path">保存路径</param>
/// <param name="imagename">返回图片名</param>
/// <returns></returns>
public static string CreateQRCode(string content, string path, ref string imagename)
{
GDataBase.MyGT gt = new GDataBase.MyGT();
if (string.IsNullOrEmpty(content))
{
return("");
}
string filename = string.Empty;
string filepath = string.Empty;
string txt_qr = content;
string qrEncoding = "Byte";
string Level = "L";
string txt_ver = "10";
string txt_size = "10";
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
String encoding = qrEncoding;
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(txt_size);
qrCodeEncoder.QRCodeScale = scale;
}
catch (Exception ex)
{
gt.WriteFile("生成二维码错误！");
}
try
{
int version = Convert.ToInt16(txt_ver);
qrCodeEncoder.QRCodeVersion = version;
}
catch (Exception ex)
{
gt.WriteFile("生成二维码错误！");
}
qrCodeEncoder.QRCodeScale = 4;
qrCodeEncoder.QRCodeVersion = 0;
string errorCorrect = Level;
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;
}
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
string QRStr = string.Empty;
if (string.IsNullOrEmpty(path))
{
QRStr = "CreateErr";
}
else
{
QRStr = DateTime.Now.ToString("yyyyMMddhhmmssffff");
}
filename = QRStr + ".jpg";
System.Drawing.Image image;
String data = txt_qr;
image = qrCodeEncoder.Encode(data);
filepath = path + "\\" + filename;
System.IO.FileStream fs = new System.IO.FileStream(filepath, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
image.Save(fs, System.Drawing.Imaging.ImageFormat.Jpeg);
fs.Close();
image.Dispose();
imagename = filename;
return(path + "/" + filename);
}