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106
web/App_Script/barcode/generator.ashx
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106
web/App_Script/barcode/generator.ashx
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<%@ WebHandler Language="C#" Class="generator" %>
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using System;
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using System.Web;
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using System.IO;
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using BarcodeLib;
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using System.Drawing;
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using System.Drawing.Imaging;
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public class generator : IHttpHandler {
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MyWeb.function f = new MyWeb.function();
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public void ProcessRequest (HttpContext context) {
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if (!f.isStrNull(context.Request["val"]))
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{
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try
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{
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MemoryStream oStream = new MemoryStream();
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CreateValidateCodeImage(ref oStream);
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context.Response.ClearContent();
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context.Response.ContentType = "image/Gif";
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context.Response.BinaryWrite(oStream.ToArray());
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}
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catch (Exception ex)
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{
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context.Response.ContentType = "text/plain";
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context.Response.Write(ex.Message);
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}
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}
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else
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{
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context.Response.ContentType = "text/plain";
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context.Response.Write("No data");
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}
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}
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public void CreateValidateCodeImage(ref MemoryStream MemoryStream)
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{
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Bitmap oBmp = CreateValidateCodeImage();
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try
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{
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oBmp.Save(MemoryStream, ImageFormat.Gif);
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}
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catch (Exception)
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{
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}
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finally
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{
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oBmp.Dispose();
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}
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}
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public Bitmap CreateValidateCodeImage()
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{
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//設定字型
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int FontSize = 10;
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if ( !f.isStrNull(HttpContext.Current.Request["fontsize"]) && f.IsNumeric(HttpContext.Current.Request["fontsize"]))
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FontSize = f.Val(HttpContext.Current.Request["fontsize"]);
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Font oFont = new Font("Times New Roman", FontSize, FontStyle.Regular);
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Barcode bc = new Barcode();
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bc.IncludeLabel = true;
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bc.Alignment = AlignmentPositions.CENTER;
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bc.Width =!f.isStrNull(HttpContext.Current.Request["w"]) && f.IsNumeric(HttpContext.Current.Request["w"])?f.Val(HttpContext.Current.Request["w"]):400;
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bc.Height =!f.isStrNull(HttpContext.Current.Request["h"]) && f.IsNumeric(HttpContext.Current.Request["h"])?f.Val(HttpContext.Current.Request["h"]):200;
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bc.RotateFlipType = RotateFlipType.RotateNoneFlipNone;
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bc.LabelFont = oFont;
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bc.BackColor = Color.White;
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bc.ForeColor = Color.Black;
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string data = f.ValString(HttpContext.Current.Request["val"]);
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string type = f.ValString(HttpContext.Current.Request["type"]);
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if (type == "39")
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return (Bitmap)bc.Encode(TYPE.CODE39, data);
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else if (type == "128")
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return (Bitmap)bc.Encode(TYPE.CODE128, data);
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else if (type == "ISBN")
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return (Bitmap)bc.Encode(TYPE.ISBN, data);
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else if (type == "ITF")
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return (Bitmap)bc.Encode(TYPE.ITF14, data);
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else if (type == "EAN13")
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return (Bitmap)bc.Encode(TYPE.EAN13, data);
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else if (type == "EAN8")
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return (Bitmap)bc.Encode(TYPE.EAN8, data);
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else
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return (Bitmap)bc.Encode(TYPE.CODE39, data);
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}
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public bool IsReusable {
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get {
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return false;
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}
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}
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}
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75
web/App_Script/barcode/qrcode.ashx
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75
web/App_Script/barcode/qrcode.ashx
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@@ -0,0 +1,75 @@
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<%@ WebHandler Language="C#" Class="qrcode" %>
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using System;
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using System.Web;
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using Gma.QrCodeNet.Encoding;
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using Gma.QrCodeNet.Encoding.Windows.Render;
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using System.Drawing;
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public class qrcode : IHttpHandler {
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public void ProcessRequest (HttpContext context) {
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MyWeb.function f = new MyWeb.function();
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if (!f.isStrNull(context.Request.QueryString["val"]))
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{
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string picType = "Image/jpeg";
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context.Response.ContentType = picType;
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context.Response.Clear();
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/*
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Level L (Low) 7% of codewords can be restored.
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Level M (Medium) 15% of codewords can be restored.
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Level Q (Quartile) 25% of codewords can be restored.
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Level H (High) 30% of codewords can be restored.
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*/
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QrEncoder encoder = new QrEncoder(ErrorCorrectionLevel.L); //設定錯誤修正容量(請參考上面註解)
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string codeString = context.Request.QueryString["val"];
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QrCode code = encoder.Encode(codeString);
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int moduleSizeInPixels = 12; //定義線條寬度
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GraphicsRenderer renderer = new GraphicsRenderer(new FixedModuleSize(moduleSizeInPixels, QuietZoneModules.Two), Brushes.Black, Brushes.White);
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//留白區大小
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Point padding = new Point(10, 16);
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//取得條碼圖大小
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DrawingSize dSize = renderer.SizeCalculator.GetSize(code.Matrix.Width);
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int imgWidth = dSize.CodeWidth + 2 * padding.X;
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int imgHeight = dSize.CodeWidth+2 * padding.Y;
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//設定影像大小
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Image img = new Bitmap(imgWidth, imgHeight);
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//繪製二維條碼圖
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Graphics g = Graphics.FromImage(img);
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renderer.Draw(g, code.Matrix, padding);
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//下方設定使JPG質量
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MyWeb.global global = new MyWeb.global();
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System.Drawing.Imaging.EncoderParameters EPS = new System.Drawing.Imaging.EncoderParameters();
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System.Drawing.Imaging.EncoderParameter EP = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, Convert.ToInt64(global.ImageCompressionQuality));
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EPS.Param[0] = EP;
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System.Drawing.Imaging.ImageCodecInfo[] codecs = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders();
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System.Drawing.Imaging.ImageCodecInfo ICI = null;
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foreach (System.Drawing.Imaging.ImageCodecInfo codec in codecs)
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if (codec.MimeType.ToLower() ==picType.ToLower())
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ICI = codec;
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img.Save(context.Response.OutputStream, ICI, EPS);
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img.Dispose();
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g.Dispose();
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}
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else
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{
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context.Response.ContentType = "text/plain";
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}
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}
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public bool IsReusable {
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get {
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return false;
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}
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}
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}
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