ASP.NET Tutorial/Page Lifecycle/Mime type

Gif image

   <source lang="csharp">

<%@ Page language="c#" %> <%@ Import Namespace="System.Drawing" %> <%@ Import Namespace="System.Drawing.Imaging" %> <%@ Import Namespace="System.Drawing.Drawing2D" %> <%@ Import Namespace="System.Drawing.Text" %> <script runat="server">

   private void Page_Load(object sender, System.EventArgs e)
   {
     Bitmap InputBitmap = new Bitmap(Server.MapPath("logo.gif"));
     
     int newWidth = 100;
     int newHeight = 100;
     Bitmap OutputBitmap = new Bitmap(InputBitmap, newWidth, newHeight);
     Response.Clear();
     Response.ContentType="image/Gif";
     OutputBitmap.Save(Response.OutputStream, ImageFormat.Gif);
     OutputBitmap.Dispose();
     InputBitmap.Dispose();
   }

</script></source>

JPeg image

   <source lang="csharp">

<%@ Page language="c#" %> <%@ Import Namespace="System.Drawing" %> <%@ Import Namespace="System.Drawing.Imaging" %> <%@ Import Namespace="System.Drawing.Drawing2D" %> <%@ Import Namespace="System.Drawing.Text" %> <script runat="server">

   private void Page_Load(object sender, System.EventArgs e)
   {
     Bitmap OutputBitmap = new Bitmap(Server.MapPath("1.jpg"));
     Graphics DrawGraphic = Graphics.FromImage(OutputBitmap);
     DrawGraphic.SmoothingMode = SmoothingMode.AntiAlias;
     DrawGraphic.TextRenderingHint = TextRenderingHint.AntiAlias;
     String MessageString = System.DateTime.Now.ToString();
     DrawGraphic.DrawString(MessageString, 
       new Font("arial",8,FontStyle.Bold),
       Brushes.DarkBlue, new PointF(10,22));
     Response.Clear();
     Response.ContentType="image/jpeg";
     OutputBitmap.Save(Response.OutputStream, ImageFormat.Jpeg);
     OutputBitmap.Dispose();
     DrawGraphic.Dispose();
   }

</script></source>

set the mime type

   <source lang="csharp">

<%@ Page language="c#" %> <%@ Import Namespace="System.Drawing" %> <%@ Import Namespace="System.Drawing.Imaging" %> <%@ Import Namespace="System.Drawing.Drawing2D" %> <%@ Import Namespace="System.Drawing.Text" %> <script runat="server">

   private void Page_Load(object sender, System.EventArgs e)
   {
     Bitmap OutputBitmap = new Bitmap(320,200);
     Graphics DrawGraphic = Graphics.FromImage(OutputBitmap);
     DrawGraphic.Clear(Color.Beige);
     
     DrawGraphic.SmoothingMode = SmoothingMode.AntiAlias;
     DrawGraphic.TextRenderingHint = TextRenderingHint.AntiAlias;
     String MessageString = System.DateTime.Now.ToString();
     DrawGraphic.DrawString(MessageString, 
       new Font("arial",18,FontStyle.Bold),
       Brushes.DarkBlue, new PointF(20,20));
     Response.Clear();
     Response.ContentType="image/jpeg";
     OutputBitmap.Save(Response.OutputStream, ImageFormat.Jpeg);
     OutputBitmap.Dispose();
     DrawGraphic.Dispose();
   }

</script></source>