/// <summary>
///
/// </summary>
/// <param name="code"></param>
/// <param name="size"></param>
/// <returns></returns>
public static Bitmap ToImage(string code, int size = 180)
{
BarcodeWriter writer = new BarcodeWriter();
QrCodeEncodingOptions qr = new QrCodeEncodingOptions()
{
CharacterSet = "UTF-8",
ErrorCorrection = ZXing.QrCode.Internal.ErrorCorrectionLevel.H,
Height = size,
Width = size,
};
writer.Options = qr;
writer.Format = BarcodeFormat.QR_CODE;
Bitmap bitmap = writer.Write(code);
return bitmap;
}
/// <summary>
/// 生成二维码图片
/// </summary>
/// <param name="contents">要生成二维码包含的信息</param>
/// <param name="width">生成的二维码宽度（默认300像素）</param>
/// <param name="height">生成的二维码高度（默认300像素）</param>
/// <returns>二维码图片</returns>
public static Bitmap GeneratorQrCodeImage(string contents, int width = 300, int height = 300)
{
if (string.IsNullOrEmpty(contents))
{
return null;
}
EncodingOptions options = null;
BarcodeWriter writer = null;
options = new QrCodeEncodingOptions
{
DisableECI = true,
CharacterSet = "UTF-8",
Width = width,
Height = height,
ErrorCorrection = ErrorCorrectionLevel.H,
//控制二维码图片的边框
Margin = 0
};
writer = new BarcodeWriter
{
Format = BarcodeFormat.QR_CODE,
Options = options
};
Bitmap bitmap = writer.Write(contents);
return bitmap;
}
private void btnEncode_Click_1(object sender, EventArgs e)
{
if (txtEncodeData.Text.Trim() == String.Empty)
{
MessageBox.Show("请输入要生成二维码的内容！");
return;
}
// 1.设置QR二维码的规格
ZXing.QrCode.QrCodeEncodingOptions qrEncodeOption = new ZXing.QrCode.QrCodeEncodingOptions();
qrEncodeOption.CharacterSet = "UTF-8"; // 设置编码格式，否则读取'中文'乱码
int scale = Convert.ToInt16(txtSize.Text);
qrEncodeOption.CharacterSet = "UTF-8"; // 设置编码格式，否则读取'中文'乱码
qrEncodeOption.Height = scale;
qrEncodeOption.Width = scale;
qrEncodeOption.Margin = 1; // 设置周围空白边距
int version = Convert.ToInt16(cboVersion.Text);
//选择编码修正方式，修正百分比越高内容越精确
string errorCorrect = cboCorrectionLevel.Text;
if (errorCorrect == "L")
{
qrEncodeOption.ErrorCorrection = ZXing.QrCode.Internal.ErrorCorrectionLevel.L;//水平 7% 的字码可被修正
}
else if (errorCorrect == "M")
{
qrEncodeOption.ErrorCorrection = ZXing.QrCode.Internal.ErrorCorrectionLevel.M;//水平 15% 的字码可被修正
}
else if (errorCorrect == "Q")
{
qrEncodeOption.ErrorCorrection = ZXing.QrCode.Internal.ErrorCorrectionLevel.Q;//水平 25% 的字码可被修正
}
else if (errorCorrect == "H")
{
qrEncodeOption.ErrorCorrection = ZXing.QrCode.Internal.ErrorCorrectionLevel.H;//水平 30% 的字码可被修正
}
// 2.生成条形码图片并保存
ZXing.BarcodeWriter wr = new BarcodeWriter();
wr.Format = BarcodeFormat.QR_CODE; // 二维码
wr.Options = qrEncodeOption;
Bitmap img = wr.Write(this.txtEncodeData.Text.Trim());
picEncode.Image = img;
}
private void btnEncode_Click(object sender, EventArgs e)
{
var txt = txtEncodeInfo.Text;
if (string.IsNullOrEmpty(txt))
return;
if (ckbEncode.Checked)
{
txt = Person.Encrypt(txt);
}
var size = 300;
BarcodeWriter writer = new BarcodeWriter();
QrCodeEncodingOptions qr = new QrCodeEncodingOptions()
{
CharacterSet = "UTF-8",
ErrorCorrection = ZXing.QrCode.Internal.ErrorCorrectionLevel.H,
Height = size,
Width = size
};
writer.Options = qr;
writer.Format = BarcodeFormat.QR_CODE;
//txt += "|" + DateTime.Now.Ticks;
Bitmap map = writer.Write(txt);
if (ckbLogo.Checked)
{
using (Graphics g = Graphics.FromImage(map))
{
Image logo = Image.FromFile("logo.jpg");
Graphics temp = Graphics.FromImage(logo);
var w = 30;
var x = (map.Width - w) / 2;
var y = (map.Height - w) / 2;
var rect = new Rectangle(x, y, w, w);
g.FillRectangle(Brushes.Red, rect);
g.DrawImage(logo, x + 2, y + 2, w - 4, w - 4);
}
}
pictureBox1.BackColor = Color.White;
pictureBox1.SizeMode = PictureBoxSizeMode.CenterImage;
pictureBox1.Image = map;
}
/// <summary>
/// 将字符串转换为二维码图片
/// </summary>
/// <param name="Str">字符串（网址）</param>
/// <returns>return : 二维码图片</returns>
public static Texture2D Convert_StrToQrcodeTexture2D(string Str)
{
Texture2D encoded = new Texture2D(256, 256);
QrCodeEncodingOptions qrEncodeOption = new ZXing.QrCode.QrCodeEncodingOptions();
qrEncodeOption.CharacterSet = "UTF-8"; //设置编码格式，否则读取'中文'乱码
qrEncodeOption.Height = encoded.height;
qrEncodeOption.Width = encoded.width;
qrEncodeOption.Margin = 0; //设置周围空白边距
var writer = new BarcodeWriter
{
Format = BarcodeFormat.QR_CODE,
Options = qrEncodeOption
};
encoded.SetPixels32(writer.Write(Str));
encoded.Apply();
return(encoded);
}
private void GenerateQrcode(string url, string name)
{
var options = new QrCodeEncodingOptions
{
DisableECI = true,
CharacterSet = "UTF-8",
Width = 400,
Height = 400
};
var writer = new BarcodeWriter
{
Format = BarcodeFormat.QR_CODE,
Options = options
};
var bitmap = writer.Write(url);
if (!string.IsNullOrEmpty(name))
{
var path = Path.Combine(Environment.CurrentDirectory, name)+".png";
bitmap.Save(path, ImageFormat.Png);
}
}
// parameters:
// strType 39 / 空 /
static Stream BuildQrCodeImage(string path)
{
Hashtable param_table = ParseParameters(path, ',', '=', "url");
string strType = (string)param_table["type"];
string strCode = (string)param_table["code"];
string strWidth = (string)param_table["width"];
string strHeight = (string)param_table["height"];
int nWidth = 200;
int nHeight = 200;
if (string.IsNullOrEmpty(strWidth) == false)
Int32.TryParse(strWidth, out nWidth);
if (string.IsNullOrEmpty(strHeight) == false)
Int32.TryParse(strHeight, out nHeight);
string strCharset = "ISO-8859-1";
bool bDisableECI = false;
BarcodeFormat format = BarcodeFormat.QR_CODE;
if (strType == "39" || strType == "code_39")
{
format = BarcodeFormat.CODE_39;
strCode = strCode.ToUpper(); // 小写字符会无法编码
}
else if (strType == "ean_13")
{
format = BarcodeFormat.EAN_13;
strCode = strCode.ToUpper();
}
EncodingOptions options = new QrCodeEncodingOptions
{
Height = nWidth, // 400,
Width = nHeight, // 400,
DisableECI = bDisableECI,
ErrorCorrection = ErrorCorrectionLevel.L,
CharacterSet = strCharset // "UTF-8"
};
if (strType == "39" || strType == "code_39"
|| strType == "ean_13")
options = new EncodingOptions
{
Width = nWidth, // 500,
Height = nHeight, // 100,
Margin = 10
};
var writer = new BarcodeWriter
{
// Format = BarcodeFormat.QR_CODE,
Format = format,
// Options = new EncodingOptions
Options = options
};
try
{
MemoryStream result = new MemoryStream(4096);
using (var bitmap = writer.Write(strCode))
{
bitmap.Save(result, System.Drawing.Imaging.ImageFormat.Png);
}
result.Seek(0, SeekOrigin.Begin);
return result;
}
catch (Exception ex)
{
Stream result = BuildTextImage("异常: " + ex.Message, Color.FromArgb(255, Color.DarkRed));
result.Seek(0, SeekOrigin.Begin);
return result;
}
}
/// <summary>
/// 获取名片二维码图片路径
/// </summary>
/// <param name="mingPianId">名片编号</param>
/// <param name="erWeiMaNeiRong">二维码内容</param>
/// <returns></returns>
string GetMingPianErWeiMaFilepath(string mingPianId, string erWeiMaNeiRong)
{
string filepath = "/ufiles/weixin/mingpianerweima/" + mingPianId + ".png";
string mappath = Server.MapPath(filepath);
if (!File.Exists(mappath))
{
var options = new QrCodeEncodingOptions
{
Margin = 1,
DisableECI = true,
CharacterSet = "UTF-8",
Width = 200,
Height = 200
};
BarcodeWriter writer = null;
writer = new BarcodeWriter();
writer.Format = BarcodeFormat.QR_CODE;
writer.Options = options;
Bitmap bitmap = writer.Write(erWeiMaNeiRong);
string dPath = System.IO.Path.GetDirectoryName(mappath);
if (!Directory.Exists(dPath)) Directory.CreateDirectory(dPath);
bitmap.Save(mappath);
}
return filepath;
}
