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8 Şubat 2014 Cumartesi

Asp.net ile başka sitenin görüntüsünü alma(Thumbnail)

Gönderen arif erzin zaman: 13:31 Etiketler: , ,



SiteCapture.aspx adında bir sayfamız var ve .cs in kodları şöyle


using System.Text;
using System.Web.UI;
using System.Drawing;
using System.Windows.Forms;
using System.Threading;
using System.IO;
using System.Collections;
using System;

namespace Matematikistan
{
    public partial class SiteCapture : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            Thread webBrowseThread = new Thread(new ThreadStart(GenerateScreenshot));
            webBrowseThread.SetApartmentState(ApartmentState.STA);
            webBrowseThread.Start();


        }

        //this method on providing the url of the webpage copies the image of that webpage.
        public void GenerateScreenshot()
        {
            string url = "http://www.go4coding.com/post/2011/05/30/Getting-Screenshot-of-a-web-page-in-aspnet.aspx";

            int width = 1024;
            try
            {
                DateTime timeStamp = DateTime.Now;
                // Load the webpage into a WebBrowser control
                WebBrowser wb = new WebBrowser();
                wb.ScrollBarsEnabled = false;
                wb.ScriptErrorsSuppressed = true;
                wb.Navigate(url);

                WebBrowserReadyState flag = wb.ReadyState;

                while (flag != WebBrowserReadyState.Complete && DateTime.Now < timeStamp.AddSeconds(10))
                {
                    System.Windows.Forms.Application.DoEvents();
                    flag = wb.ReadyState;
                    TimeSpan elapsed = DateTime.Now.Subtract(timeStamp);
                }

                wb.Width = wb.Document.Body.ScrollRectangle.Width;
                wb.Height = wb.Document.Body.ScrollRectangle.Height;
                if (wb.Width < width)
                {
                    // Take Screenshot of the web pages full width
                    wb.Width = width;
                }

                // Get a Bitmap representation of the webpage as it's rendered in the WebBrowser control
                Bitmap bitmap = new Bitmap(wb.Width, wb.Height);

                wb.DrawToBitmap(bitmap, new System.Drawing.Rectangle(0, 0, wb.Width, wb.Height));
                Graphics Grfx = Graphics.FromImage(bitmap);
                Grfx.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
                Grfx.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
                Grfx.PixelOffsetMode = System.Drawing.Drawing2D.PixelOffsetMode.HighQuality;
                Grfx.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighQuality;
                Grfx.DrawImage(bitmap, 0, 0, wb.Width, wb.Height);
                wb.Dispose();
                SplitAndSaveImages(bitmap);

            }
            catch (Exception ex)
            {
            }
        }


        protected void SplitAndSaveImages(Bitmap input)
        {
            try
            {
                int height = input.Height;
                int width = input.Width;
                if (input.Height > 768)
                {
                    int y = 0;
                    while (y < height)
                    {
                        using (Bitmap img = input.Clone() as Bitmap)
                        {
                            Bitmap newimage = img.Clone(new System.Drawing.Rectangle(0, y, width, height - y > 768 ? 768 : height - y), img.PixelFormat);
                            newimage.Save(@"D:\" + "output" + y.ToString() + ".bmp", System.Drawing.Imaging.ImageFormat.Bmp);
                        }
                        y += 768;
                    }
                }
                else
                {
                    using (Bitmap img = input.Clone() as Bitmap)
                    {
                        Bitmap newimage = img.Clone(new System.Drawing.Rectangle(0, 0, width, height), img.PixelFormat);
                        newimage.Save(@"D:\BitmapSplit\Output\" + "output.bmp", System.Drawing.Imaging.ImageFormat.Bmp);
                    }
                }
            }
            catch (Exception ex)
            {

            }

        }
       
    }
}

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