public void GenerateQRByQrCodeNet(string content)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
QrCode qrCode = new QrCode();
qrEncoder.TryEncode(content, out qrCode);
GraphicsRenderer renderer = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Two), Brushes.Black, Brushes.White);
using (MemoryStream ms = new MemoryStream())
{
renderer.WriteToStream(qrCode.Matrix, ImageFormat.Png, ms);
Image img = Image.FromStream(ms);
img.Save("C:/Img/RRR.png");
}
}
//初始化生成QRCode的函数
static void InitQRCode(string qrText)
{
//新建QrEncoder类的对象
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.M);
//新建QrCode类的对象，传入形参
QrCode qrCode = qrEncoder.Encode(qrText);
//新建GraphicsRenderer类的对象
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Two), Brushes.Black, Brushes.White);
//初始化FileStream类的对象，以便生成二维码文件
using (FileStream stream = new FileStream(FILE_NAME, FileMode.Create))
{
//将二维码输出到文件
render.WriteToStream(qrCode.Matrix, ImageFormat.Png, stream);
}
}
private void button1_Click(object sender, EventArgs e)
{
// crear un directorio para los codigos
string ruta = @"C:\Users\frodo\Desktop\codigosQr";
if (!Directory.Exists(ruta))
{
// crear un directorio
Directory.CreateDirectory(ruta);
}
/// generar un codigo QR para los elementos de la caja
for (int i = 1; i <= 30; i++)
{
// crear un encoder, codificador
QrEncoder Codificador = new QrEncoder(ErrorCorrectionLevel.H);
// crear un codigo QR
QrCode Codigo = new QrCode();
// generar generar un codigo apartir de datos, y pasar el codigo por referencia
Codificador.TryEncode("Gonzalez" + i.ToString(), out Codigo);
// generar un graficador
GraphicsRenderer Renderisado = new GraphicsRenderer(new FixedCodeSize(200, QuietZoneModules.Zero), Brushes.Black, Brushes.White);
// generar un flujo de datos
MemoryStream ms = new MemoryStream();
// escribir datos en el renderizado
Renderisado.WriteToStream(Codigo.Matrix, ImageFormat.Png, ms);
// generar controles para ponerlos en el form
var ImagenQR = new Bitmap(ms);
var ImgenSalida = new Bitmap(ImagenQR, new Size(panel1.Width, panel1.Height));
// guardar la imagen
ImgenSalida.Save(ruta + "/" + i.ToString() + ".png", System.Drawing.Imaging.ImageFormat.Png);
// asignar la imagen al panel
panel1.BackgroundImage = ImgenSalida;
panel1.Refresh();
System.Threading.Thread.Sleep(500);
}
}
public void EncodeToPng(string str, string picpath, QRCodeSaveSize saveSize)
{
QrCode qrCode = _qrEncoder.Encode(str);
//保存成png文件
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(Convert.ToInt32(saveSize), QuietZoneModules.Two), Brushes.Black, Brushes.White);
using (FileStream stream = new FileStream(picpath, FileMode.OpenOrCreate)) //OpenOrCreate打开新文件默认就是truncate的了，如果再显式指定Truncate反而会报错当文件不存在的时候
{
render.WriteToStream(qrCode.Matrix, ImageFormat.Png, stream);
}
Bitmap bitmap = new Bitmap(165, 165);
Graphics g = Graphics.FromImage(bitmap);
render.Draw(g, qrCode.Matrix);
bitmap.Save("a.bmp");
}
public string CreateQrCode(string source, string pathFile)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
QrCode qrCode = new QrCode();
qrEncoder.TryEncode(source, out qrCode);
GraphicsRenderer renderer = new GraphicsRenderer(new FixedCodeSize(8000, QuietZoneModules.Zero), Brushes.Black, Brushes.White);
MemoryStream ms = new MemoryStream();
renderer.WriteToStream(qrCode.Matrix, ImageFormat.Png, ms);
Bitmap imagenTemporal = new Bitmap(ms);
var imagen = new Bitmap(imagenTemporal, new Size(new Point(200, 200)));
imagen.Save(pathFile, ImageFormat.Png);
return(pathFile);
}
/// <summary>
/// 生成二维码
/// </summary>
/// <param name="content">二维码内容，可以是url、文本信息</param>
/// <param name="savePath">保存地址</param>
public static void Generate(string content, string savePath)
{
// 二维码容错率
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
QrCode qrCode = new QrCode();
qrEncoder.TryEncode(content, out qrCode);
using (MemoryStream ms = new MemoryStream())
{
var renderer = new GraphicsRenderer(new FixedModuleSize(18, QuietZoneModules.Two));
renderer.WriteToStream(qrCode.Matrix, ImageFormat.Png, ms);
System.Drawing.Image bitmap = new System.Drawing.Bitmap(ms);
bitmap.Save(savePath, System.Drawing.Imaging.ImageFormat.Png);
}
}
private void tsmiSaveAs_Click(object sender, EventArgs e)
{
using (SaveFileDialog saveFileDialog = new SaveFileDialog())
{
saveFileDialog.Filter = @"PNG (*.png)|*.png|JPEG (*.jpg)|*.jpg|Bitmap (*.bmp)|*.bmp|Encapsuled PostScript (*.eps)|*.eps|SVG (*.svg)|*.svg";
saveFileDialog.FileName = txtQRCode.Text;
saveFileDialog.DefaultExt = "png";
if (saveFileDialog.ShowDialog() == DialogResult.OK)
{
string filePath = saveFileDialog.FileName;
if (filePath.EndsWith("eps"))
{
// Initialize the EPS renderer
EncapsulatedPostScriptRenderer renderer = new EncapsulatedPostScriptRenderer(new FixedModuleSize(6, QuietZoneModules.Two), // Modules size is 6/72th inch (72 points = 1 inch)
new FormColor(Color.Black), new FormColor(Color.White));
BitMatrix matrix = qrMain.GetQrMatrix();
using (FileStream fs = new FileStream(filePath, FileMode.Create))
{
renderer.WriteToStream(matrix, fs);
}
}
else if (filePath.EndsWith("svg"))
{
// Initialize the EPS renderer
SVGRenderer renderer = new SVGRenderer(new FixedModuleSize(6, QuietZoneModules.Two), // Modules size is 6/72th inch (72 points = 1 inch)
new FormColor(Color.FromArgb(150, 200, 200, 210)), new FormColor(Color.FromArgb(200, 255, 155, 0)));
BitMatrix matrix = qrMain.GetQrMatrix();
using (FileStream fs = new FileStream(filePath, FileMode.Create))
{
renderer.WriteToStream(matrix, fs, false);
}
}
else
{
GraphicsRenderer gRender = new GraphicsRenderer(new FixedModuleSize(20, QuietZoneModules.Two));
BitMatrix matrix = qrMain.GetQrMatrix();
using (FileStream fs = new FileStream(filePath, FileMode.Create))
{
gRender.WriteToStream(matrix, ImageHelpers.GetImageFormat(filePath), fs);
}
}
}
}
}
/// <summary>
/// Utilizando la librería Gma.QrCodeNet creamos una nueva imagen en PNG
/// que será un código QR con el texto que se le de
/// </summary>
/// <param name="guid">Texto que tendrá el código QR</param>
/// <param name="basePath">Base path</param>
/// <returns>Regresa el URL en el que se podrá encontrar la imagen recien
/// guardada</returns>
public static string CreateQr(string guid, string basePath)
{
// Se crea un Stream que tendrá la imagen en JPG utilizando QrCodeNet
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode = qrEncoder.Encode(guid);
GraphicsRenderer renderer = new GraphicsRenderer(new FixedModuleSize(20, QuietZoneModules.Two), Brushes.Black, Brushes.White);
MemoryStream stream = new MemoryStream();
renderer.WriteToStream(qrCode.Matrix, ImageFormat.Png, stream, new Point(100, 100));
// Se crea un path donde se guardará el archivo en el disco duro
string filePath = Path.Combine(basePath, String.Format("Storage/Qrs/{0}.png", guid));
PhotoData.SaveQrImageFile(filePath, stream.ToArray());
stream.Close();
// Construimos el URL en el que el navegador podrá descargar la imagen
return(Path.Combine(ConfigurationManager.AppSettings["PhotoPath"], String.Format("Storage/Qrs/{0}.png", guid)));
}
/// <summary>
/// 二维码二进制流
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
public byte[] QrCodeCreate(string str)
{
QrCode qrcode = new QrEncoder().Encode(str);
GraphicsRenderer gRenderer = new GraphicsRenderer(new FixedModuleSize(6, QuietZoneModules.Two), Brushes.Black, Brushes.White);
MemoryStream ms = new MemoryStream();
gRenderer.WriteToStream(qrcode.Matrix, ImageFormat.Png, ms);
Image image = Image.FromStream(ms);
MemoryStream ms1 = new MemoryStream();
image.Save(ms1, ImageFormat.Png);
byte[] arr = new byte[ms1.Length];
ms1.Position = 0L;
ms1.Read(arr, 0, (int)ms1.Length);
ms1.Close();
return(arr);
}
public void GeneraQR(string fecha, string cuit, string ptoVtaNComp, string total, string tipoComp)
{
string fechaJ = fecha.Substring(6) + "-" + fecha.Substring(3, 2) + "-" + fecha.Substring(0, 2);
string cuitJ = cuit.Replace("-", string.Empty);
string ptoVta = ptoVtaNComp.Substring(0, 4);
string nroComp = ptoVtaNComp.Substring(5);
string tipoCompJ = string.Empty;
string ver = "1";
total = total.Replace(",", ".");
if (tipoComp == "A")
{
tipoCompJ = "081";
}
else
{
tipoCompJ = "082";
}
string moneda = "PES";
string ctz = "1";
string tipoCodAut = "E";
string codAut = "70417054367476";
string jsonS = "ver:" + ver + ",fecha:" + fechaJ + ",cuit:" + cuitJ + ",ptoVta:" + ptoVta + ",tipoCmp:" + tipoCompJ + ",nroCmp:" + nroComp + ",importe:" + total + ",moneda:" + moneda + ",ctz:" + ctz + ",tipoCodAut:" + tipoCodAut + ",codAut:" + codAut;
string json64 = Convert.ToBase64String(Encoding.UTF8.GetBytes(jsonS));
string url = "https://www.afip.gob.ar/fe/qr/?p=" + json64;
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
QrCode qrCode = new QrCode();
qrEncoder.TryEncode(url, out qrCode);
GraphicsRenderer renderer = new GraphicsRenderer(new FixedCodeSize(400, QuietZoneModules.Zero), Brushes.Black, Brushes.White);
MemoryStream ms = new MemoryStream();
renderer.WriteToStream(qrCode.Matrix, ImageFormat.Png, ms);
var imageTemporal = new Bitmap(ms);
var imagen = new Bitmap(imageTemporal, new Size(new Point(200, 200)));
string filePath = Path.Combine(Application.StartupPath + "\\Reportes", "QR.png");
Image ImagenGrb = imagen;
ImagenGrb.Save(filePath);
}
/// <summary>
/// 生成二维码
/// </summary>
/// <param name="content">内容</param>
/// <param name="moduleSize">二维码的大小</param>
/// <param name="filePath">为存放的图片路径</param>
/// <returns>输出流</returns>
public static MemoryStream GetQRCode(string content, int moduleSize = 9)
{
var encoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode = encoder.Encode(content);
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(moduleSize, QuietZoneModules.Two), Brushes.Black, Brushes.White);
MemoryStream memoryStream = new MemoryStream();
render.WriteToStream(qrCode.Matrix, ImageFormat.Jpeg, memoryStream);
return(memoryStream);
//生成图片的代码
//DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
//Bitmap map = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
//Graphics g = Graphics.FromImage(map);
//render.Draw(g, qrCode.Matrix);
//map.Save(fileName, ImageFormat.Jpeg);//fileName为存放的图片路径
}
/// <summary>
/// 生成二维码的方法
/// </summary>
/// <param name="str">二维码包含的内容</param>
/// <param name="moduleSize">二维码大小</param>
/// <param name="no">编号</param>
private void createQrCode(string content, int no, int moduleSize = 9)
{
//QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
//QrCode qrCode = new QrCode();
//qrEncoder.TryEncode(str, out qrCode);
string filename = DateTime.Now.ToString("d");
filename = filename.Replace("/", "");
filename = filename.Replace(":", "");
filename = filename.Replace("-", "");
filename = filename.Replace(".", "");
filename = filename.Replace(" ", "");
string filepath = System.AppDomain.CurrentDomain.BaseDirectory + filename;
if (!Directory.Exists(filepath))
{
Directory.CreateDirectory(filepath);
}
string fileName = filepath + "\\" + no + ".png";
//Renderer renderer = new Renderer(5, Brushes.Black, Brushes.White);
//renderer.CreateImageFile(qrCode.Matrix, @filename, ImageFormat.Png);
//ErrorCorrectionLevel 误差校正水平
//QuietZoneModules 空白区域
var encoder = new QrEncoder(ErrorCorrectionLevel.M);
QrCode qrCode = encoder.Encode(content);
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(moduleSize, QuietZoneModules.Two), Brushes.Black, Brushes.White);
//MemoryStream memoryStream = new MemoryStream();
//render.WriteToStream(qrCode.Matrix, ImageFormat.Jpeg, memoryStream);
//return memoryStream;
//生成图片的代码
DrawingSize dSize = render.SizeCalculator.GetSize(qrCode.Matrix.Width);
Bitmap map = new Bitmap(dSize.CodeWidth, dSize.CodeWidth);
Graphics g = Graphics.FromImage(map);
render.Draw(g, qrCode.Matrix);
map.Save(fileName, ImageFormat.Png);//fileName为存放的图片路径
}
protected override void Initialize()
{
SettingsFile settings = DataFolder.GetSettingsFile();
GraphicsRenderer.Initialize(GraphicsDevice, _graphics);
GraphicsRenderer.ChangeResolution(settings.ResolutionWidth, settings.ResolutionHeight);
GraphicsRenderer.SetFullscreen(settings.IsFullscreen);
Camera = new Camera(GraphicsDevice.Viewport);
InitializeUi();
Session.Initialize();
GameWorld.Initialize();
LoadingScreen.Initialize();
base.Initialize();
}
private bool GenCode(string content, out MemoryStream ms)
{
ms = new MemoryStream();
ErrorCorrectionLevel ecl = ErrorCorrectionLevel.M;//误差水平
QuietZoneModules qzm = QuietZoneModules.Two;
int moduleSize = 12;
QrEncoder encoder = new QrEncoder(ecl);
QrCode qr;
if (encoder.TryEncode(content, out qr))//对内容进行编码，并保存生成的矩阵
{
var render = new GraphicsRenderer(new FixedModuleSize(moduleSize, qzm));
render.WriteToStream(qr.Matrix, ImageFormat.Jpeg, ms);
return(true);
}
return(false);
}
private void btnShowQRCode_Click(object sender, EventArgs e)
{
var qrGenerator = new QrEncoder();
var qrCode = qrGenerator.Encode(_password);
var gRenderer = new GraphicsRenderer(
new FixedModuleSize(6, QuietZoneModules.Two));
using (var ms = new MemoryStream())
{
gRenderer.WriteToStream(qrCode.Matrix, ImageFormat.Png, ms);
using (pbQrCode.Image)
{
pbQrCode.Image = new Bitmap(ms);
}
}
}
public static Image GenerateQRCode(string content, int size)
{
QrEncoder encoder = new QrEncoder(ErrorCorrectionLevel.H);
QrCode qrCode;
encoder.TryEncode(content, out qrCode);
GraphicsRenderer gRenderer = new GraphicsRenderer(new FixedModuleSize(4, QuietZoneModules.Two), Brushes.Black, Brushes.White);
MemoryStream ms = new MemoryStream();
gRenderer.WriteToStream(qrCode.Matrix, ImageFormat.Bmp, ms);
var imageTemp = new Bitmap(ms);
return(new Bitmap(imageTemp, new Size(new Point(size, size))));
}
private void btnQR_Click(object sender, EventArgs e)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
QrCode qrCode = new QrCode();
string valorQR = "Hola profe me gustaria que me sacara un 10";
qrEncoder.TryEncode(valorQR, out qrCode);
GraphicsRenderer renderer = new GraphicsRenderer(new FixedCodeSize(400, QuietZoneModules.Zero), Brushes.Black, Brushes.White);
MemoryStream ms = new MemoryStream();
renderer.WriteToStream(qrCode.Matrix, ImageFormat.Png, ms);
var imageTemporal = new Bitmap(ms);
var imagen = new Bitmap(imageTemporal, new Size(new Point(199, 199)));
imgQR.BackgroundImage = imagen;
imagen.Save("qr.png", ImageFormat.Png);
}
private void btnQRHorario_Click(object sender, EventArgs e)
{
QrEncoder codigo = new QrEncoder(ErrorCorrectionLevel.H);
QrCode cod;
GraphicsRenderer renderer;
FileStream stream;
foreach (var iter in lstDatos.Items)
{
cod = codigo.Encode(iter.ToString());
renderer = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Two), Brushes.Black, Brushes.White);
using (stream = new FileStream(@"C:\Users\Daniel\Pictures\CodigosQR\codigo.png", FileMode.OpenOrCreate))
{
renderer.WriteToStream(cod.Matrix, ImageFormat.Png, stream);
}
}
}
/// <summary>
/// 生成二维码
/// </summary>
/// <param name="text"></param>
/// <returns></returns>
public static MemoryStream GetQrCodeImage(string text)
{
var rtnMemoryStream = new MemoryStream();
var encoder = new QrEncoder(ErrorCorrectionLevel.L);
QrCode qr = null;
if (!encoder.TryEncode(text, out qr))
{
throw new Exception("生成二维码失败");
}
var render = new GraphicsRenderer(new FixedModuleSize(8, QuietZoneModules.Zero));
render.WriteToStream(qr.Matrix, ImageFormat.Png, rtnMemoryStream);
return(rtnMemoryStream);
}
/*
* public static void printList(LTL_LotteryList pNumberList)
* {
* // Configurar impresión para Ticket de Venta
* TicketPrinter ticketPrinter = new TicketPrinter();
* SaleTicket saleTicket = new SaleTicket();
* saleTicket.companyName = UtilityService.getCompanyName();
* // Obtener datos del punto de venta
* LPS_LotteryPointSale pointSale = UtilityService.getPointSale();
* saleTicket.pointSaleName = pointSale.LPS_DisplayName;
* // Obtener datos del sorteo
* LotteryDrawRepository drawRepo = new LotteryDrawRepository();
* LTD_LotteryDraw drawObject = drawRepo.getById(pNumberList.LTD_LotteryDraw);
* saleTicket.drawDate = drawObject.LTD_CreateDate;
* // Obtener datos de tipo de sorteo
* LotteryDrawTypeRepository drawTypeRepo = new LotteryDrawTypeRepository();
* LDT_LotteryDrawType drawType = drawTypeRepo.getById(drawObject.LDT_LotteryDrawType);
* saleTicket.drawTypeCode = drawType.LDT_Code;
* // Llenar datos del número de lista
* saleTicket.createDate = DateTime.Now;
* saleTicket.ticketId = pNumberList.LTL_Id;
* saleTicket.globalId = pointSale.LPS_Id + "" + saleTicket.ticketId;
* saleTicket.customerName = pNumberList.LTL_CustomerName;
* // Obtener detalle de la lista procesada
* LotteryListRepository listRepo = new LotteryListRepository();
* saleTicket.listNumberDetail = listRepo.getTupleListDetail(pNumberList.LTL_Id);
* ticketPrinter.saleTicket = saleTicket;
* // Obtener nombre de impresora y enviar impresión
* string printerName = UtilityService.getTicketPrinterName();
* ticketPrinter.printLotterySaleTicket(printerName);
* }
*/
/*
* public static void printPrizeTicket(LTD_LotteryDraw pDraw, string[] pWinningNumberArray)
* {
* // Configurar impresión para Ticket de Venta
* TicketPrinter ticketPrinter = new TicketPrinter();
* PrizeTicket prizeTicket = new PrizeTicket();
* prizeTicket.companyName = UtilityService.getCompanyName();
* prizeTicket.title = "NÚMEROS PREMIADOS";
* // Obtener datos del punto de venta
* LPS_LotteryPointSale pointSale = UtilityService.getPointSale();
* prizeTicket.pointSaleName = pointSale.LPS_DisplayName;
* prizeTicket.drawDate = pDraw.LTD_CreateDate;
* // Obtener datos de tipo de sorteo
* LotteryDrawTypeRepository drawTypeRepo = new LotteryDrawTypeRepository();
* LDT_LotteryDrawType drawType = drawTypeRepo.getById(pDraw.LDT_LotteryDrawType);
* prizeTicket.drawTypeCode = drawType.LDT_Code;
* // Llenar datos del número de lista
* prizeTicket.createDate = DateTime.Now;
* // Obtener listado de información de ganadores
* LotteryListRepository lotteryListRepository = new LotteryListRepository();
* prizeTicket.listWinningInfo = lotteryListRepository.getWinningNumbersList(pDraw, pWinningNumberArray);
* prizeTicket.winnerNumbers = pWinningNumberArray;
* ticketPrinter.prizeTicket = prizeTicket;
* // Obtener nombre de impresora y enviar impresión
* string printerName = UtilityService.getTicketPrinterName();
* ticketPrinter.printPrizeTicket(printerName);
* }
*/
public static Bitmap buildQRCode(string pCodeText, int pBitmapWidth, int pBitmapHeight)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
QrCode qrCode = new QrCode();
qrEncoder.TryEncode(pCodeText, out qrCode);
GraphicsRenderer renderer = new GraphicsRenderer(new FixedCodeSize(400, QuietZoneModules.Zero), Brushes.Black, Brushes.White);
MemoryStream ms = new MemoryStream();
renderer.WriteToStream(qrCode.Matrix, ImageFormat.Png, ms);
Bitmap imageTemporal = new Bitmap(ms);
Bitmap imagen = new Bitmap(imageTemporal, new Size(new Point(pBitmapWidth, pBitmapHeight)));
return(imagen);
}
/// <summary>
/// 生成二维码
/// </summary>
/// <param name="strContent"></param>
/// <returns></returns>
public MemoryStream GetQRCode(string strContent)
{
MemoryStream ms = new MemoryStream();
ErrorCorrectionLevel Ecl = ErrorCorrectionLevel.M; //误差校正水平
string Content = strContent; //待编码内容
QuietZoneModules QuietZones = QuietZoneModules.Two; //空白区域
int ModuleSize = 12; //大小
var encoder = new QrEncoder(Ecl);
QrCode qr;
if (encoder.TryEncode(Content, out qr))//对内容进行编码，并保存生成的矩阵
{
var render = new GraphicsRenderer(new FixedModuleSize(ModuleSize, QuietZones));
render.WriteToStream(qr.Matrix, ImageFormat.Png, ms);
}
return(ms);
}
public int qr()
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
QrCode qrCode = new QrCode();
String rambon = (new Random().Next(1, 1000)).ToString();
qrEncoder.TryEncode(rambon, out qrCode);
GraphicsRenderer renderer = new GraphicsRenderer(new FixedCodeSize(400, QuietZoneModules.Zero), Brushes.Black, Brushes.White);
MemoryStream ms = new MemoryStream();
renderer.WriteToStream(qrCode.Matrix, ImageFormat.Png, ms);
var imageTemporal = new Bitmap(ms);
return(Convert.ToInt32(qrCode.GetHashCode()));
}
//生成带背景图的二维码图片
public static byte[] QRCodeHasBackImg(string text, int size, bool contentImg, string fg = "#000000", string bg = "#FFFFFF")
{
byte[] result = null;
using (MemoryStream ms = new MemoryStream())
{
QrEncoder encoder = new QrEncoder(ErrorCorrectionLevel.H);
QrCode qr;
if (encoder.TryEncode(text, out qr))
{
//背景图存在 则生成带背景图的;
if (File.Exists(HttpContext.Current.Server.MapPath("~/Images/poster2.jpg")) && contentImg)
{
Image img = Image.FromFile(HttpContext.Current.Server.MapPath("~/Images/poster2.jpg"));
Graphics g = Graphics.FromImage(img);
g.DrawImage(img, 0, 0, 400, 600);
Bitmap image = null;
using (MemoryStream msQR = new MemoryStream())
{
GraphicsRenderer renderer = new GraphicsRenderer(new FixedCodeSize(400, QuietZoneModules.Zero), new SolidBrush(ColorTranslator.FromHtml(fg)), new SolidBrush(ColorTranslator.FromHtml(bg)));
renderer.WriteToStream(qr.Matrix, ImageFormat.Png, msQR);
var imageTemp = new Bitmap(msQR);
image = new Bitmap(imageTemp, new Size(new Point(size, size)));
}
g.DrawImage(image, 245, 74, image.Width, image.Height);
GC.Collect();
img.Save(ms, ImageFormat.Jpeg);
result = ms.GetBuffer();
}
else
{
//若不存在 则直接生成二维码
GraphicsRenderer renderer = new GraphicsRenderer(new FixedCodeSize(400, QuietZoneModules.Zero), new SolidBrush(ColorTranslator.FromHtml(fg)), new SolidBrush(ColorTranslator.FromHtml(bg)));
renderer.WriteToStream(qr.Matrix, ImageFormat.Png, ms);
var imageTemp = new Bitmap(ms);
var image = new Bitmap(imageTemp, new Size(new Point(size, size)));
using (MemoryStream ms2 = new MemoryStream())
{
image.Save(ms2, ImageFormat.Jpeg);
result = ms2.GetBuffer();
}
}
}
}
return(result);
}
public Image Render(MemoryStream ms)
{
//Image returnImage = Image.FromStream(ms, true);//Exception occurs here
//try
//{
var render = new GraphicsRenderer(new FixedModuleSize(2, QuietZoneModules.Two));
render.WriteToStream(Matrix, ImageFormat.Png, ms);
//ContentType = "image/png";
var returnImage = Image.FromStream(ms, true); //Exception occurs here
//}
//catch(Exception ex)
//{
//var err = ex.Message;
//}
return(returnImage);
}
public static MemoryStream GenQrCode(string content, int size)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.L);
QrCode qrCode;
qrEncoder.TryEncode(content, out qrCode);
GraphicsRenderer render = new GraphicsRenderer(new FixedCodeSize(size, QuietZoneModules.Zero), Brushes.Black, Brushes.Transparent);
MemoryStream ms = new MemoryStream();
Bitmap bitmap = new Bitmap(size, size);
Graphics graphics = Graphics.FromImage(bitmap);
graphics.Clear(System.Drawing.Color.White);
render.Draw(graphics, qrCode.Matrix);
bitmap.Save(ms, ImageFormat.Jpeg);
return(ms);
}
private void SaveCodeFile(string content, int col_n, string path)
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
QrCode code = new QrCode();
qrEncoder.TryEncode(content, out code);
const int modelSizeInPixels = 4;
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(modelSizeInPixels, QuietZoneModules.Two)
, Brushes.Black, Brushes.White);
//在目标文件夹创建一个空的.bmp文件
string filename = path + "/" + Program.getString(col_n) + Program.GetContSplit(content) + ".bmp";
using (FileStream fs = new FileStream(filename, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
render.WriteToStream(code.Matrix, ImageFormat.Png, fs);
}
}
protected override void InitDict()
{
base.InitDict();
if (cu.type == 1)
{
Context.Response.Redirect("/wx/user/index.html"); //仅商户有邀请二维码
}
var qr = new QrEncoder();
var cd = qr.Encode("http://" + cfg.domain + "/wx/invite-" + cu.id + "-" + cu.no + ".html");
var rd = new GraphicsRenderer(new FixedModuleSize(15, QuietZoneModules.Two));
using (var ms = new MemoryStream())
{
rd.WriteToStream(cd.Matrix, ImageFormat.Jpeg, ms);
dict.Add("qr", Convert.ToBase64String(ms.ToArray()));
}
}
public static string GenerateQRCode(string link)
{
try
{
QrEncoder qr_encoder = new QrEncoder();
QrCode code = null;
qr_encoder.TryEncode(link, out code);
GraphicsRenderer renderer = new GraphicsRenderer(new FixedCodeSize(350, QuietZoneModules.Zero), Brushes.Black, Brushes.White);
MemoryStream ms = new MemoryStream();
renderer.WriteToStream(code.Matrix, ImageFormat.Png, ms);
return(Convert.ToBase64String(ms.GetBuffer()));
}
catch (Exception ex)
{
ex.Message.ToString();
return(null);
}
}
protected void SaveQrCode(string text, string filename)
{//用于保存二维码图像的函数
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.M);
//设置二维码错误修正率
QrCode qrCode = qrEncoder.Encode(text);
//使用text参数进行编码
GraphicsRenderer renderer = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Two),
Brushes.Black, Brushes.White);
//实例化Renderer对象，
string fileurl = "C://Users//Top//Pictures//Saved Pictures//" + filename + ".png";
using (FileStream stream = new FileStream(fileurl, FileMode.Create))
{
renderer.WriteToStream(qrCode.Matrix, ImageFormat.Png, stream);
//将二维码矩阵写入文件流，设置图片格式为png
}
Console.WriteLine("Your QrCode pictures are stored in " + fileurl);
}
//生成QRCode的函数
public void DrawQRCode(string qrText)
{
//pictureBox1重新生成
pictureBox1.Refresh();
//新建QrEncoder类的对象
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.M);
//新建QrCode类的对象，传入形参
QrCode qrCode = qrEncoder.Encode(qrText);
//新建GraphicsRenderer类的对象
GraphicsRenderer render = new GraphicsRenderer(new FixedModuleSize(5, QuietZoneModules.Two), Brushes.Black, Brushes.White);
//确定绘图初始点
Point padding = new Point(0, 0);
//实例化Graphics类
Graphics graphics = pictureBox1.CreateGraphics();
//将graphics对象导入pictureBox1
render.Draw(graphics, qrCode.Matrix, padding);
}
