Serving images using HTTPListener

        protected virtual void ProcessRequest(HttpListenerContext Context)
        {

            HttpListenerRequest Request = Context.Request;
            HttpListenerResponse Response = Context.Response;

// This bit creates the image and is obviously unique to my app
            int xx = Convert.ToInt32(Request.QueryString["x"]);
            int yy = Convert.ToInt32(Request.QueryString["y"]);

            DrawMap(buff,xx,yy,594,339,gBumps);
            
//Save out image as file
            buff.Save("c:\\temp.png", System.Drawing.Imaging.ImageFormat.Png);

//Open image as byte stream to send to requestor
            FileInfo fInfo = new FileInfo("c:\\temp.png");
            long numBytes = fInfo.Length;

            FileStream fStream = new FileStream("c:\\temp.png", FileMode.Open, FileAccess.Read);

            BinaryReader br = new BinaryReader(fStream);

            byte[] bOutput = br.ReadBytes((int)numBytes);

            br.Close();

            fStream.Close();

            Response.ContentType = "image/png";
            Response.ContentLength64 = bOutput.Length;

            Stream OutputStream = Response.OutputStream;
            OutputStream.Write(bOutput, 0, bOutput.Length);
            OutputStream.Close();

        }