1using System;
2using System.Collections;
3using System.ComponentModel;
4using System.Data;
5using System.Drawing;
6using System.Drawing.Imaging;
7using System.Web;
8using System.Web.SessionState;
9using System.Web.UI;
10using System.Web.UI.WebControls;
11using System.Web.UI.HtmlControls;
12
13namespace Captcha
14{
15	public class CreateCaptcha1 : System.Web.UI.Page
16	{
17		#region Web Form Designer generated code   ...
18
19		override protected void OnInit(EventArgs e)
20		{
21			//
22			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
23			//
24			InitializeComponent();
25			base.OnInit(e);
26		}
27		
28		/// <summary>
29		/// Required method for Designer support - do not modify
30		/// the contents of this method with the code editor.
31		/// </summary>
32		private void InitializeComponent()
33		{    
34			this.Load += new System.EventHandler(this.Page_Load);
35		}
36		#endregion
37
38		private void Page_Load(object sender, System.EventArgs e)
39		{
40			//Create a Captcha image
41			Session["CaptchaText"] = Guid.NewGuid().ToString().Replace("-", "").Substring(0, 5).ToUpper();
42			CaptchaImage objCI = new CaptchaImage(Session["CaptchaText"].ToString(), "Arial", 200, 50);
43			//Change response headers to output JPEG content
44			Response.Clear();
45			Response.ContentType = "image/jpeg";
46			//Write the image to the response stream
47			objCI.Bitmap.Save(this.Response.OutputStream, ImageFormat.Jpeg);
48			//Release memory
49			objCI.Dispose();
50		}
51	}
52}