asp.net picture plus watermark code

<%@ WebHandler language= "C #" class= "Bookhandler"%>

using System;

Using System.Web;

Using System.Drawing;

Using System.IO;

public class Bookhandler:ihttphandler {

Private Const string COVERSADDR = "~/image/"; Cover Page Folder path

Private Const string Watermark_url = "~/images/watermark.jpg"; Number

Word watermark Path

Private Const string Default_url = "~/images/default.jpg"; Default diagram

Slice path

public void ProcessRequest (HttpContext context) {

String path = Context.request.mappath (Coversaddr +

Context.request.params["ISBN"].tostring () + ". jpg");

Image cover;

if (file.exists (path))

{

Cover = Image.FromFile (path);

Image watermark = Image.FromFile (context.request.mappath

(Watermark_url));

Graphics g = graphics.fromimage (cover);

G.drawimage (watermark, new Rectangle (Cover.width-

Watermark.width, Cover.height-watermark.height, Watermark.width,

Watermark.height), 0, 0, watermark.width, Watermark.height,

GraphicsUnit.Pixel);

G.dispose ();

Watermark.dispose ();

}

Else

{

Cover = Image.FromFile (Context.request.mappath

(Default_url));

}

Context.request.contenttype = "Image/ipeg";

Cover.save

(Context.response.outputstream,system.drawing.imaging.imageformat.jpeg);

Cover.dispose ();

Context.response.end ();

}

public bool IsReusable {

get {

return false;

}

}

}

Finally, the path to the connecting picture in the page or code is changed to

bookcover.ashx?isbn= number on it.

To configure JPG access in IIS