I talk to service providers also, and they are not able to help me out, can anyone let me know how we can come from the issue.

Please find the URL of my test page.
http://thefogochannel.com/TestHandler.aspx

My sample code is as follows:

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
using System.Threading;
using System.Drawing;
using System.Windows.Forms;
using System.Reflection;

public partial class TestHandler : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{

}

protected void btnShowThumbnailImage_Click(object sender, EventArgs e)
{
string address = “http://” + txtWebsiteAddress.Text;
int width = Int32.Parse(txtWidth.Text);
int height = Int32.Parse(txtHeight.Text);
Bitmap bmp = GetWebSiteThumbnail(address, 800, 600, width, height);
bmp.Save(Server.MapPath(“~”) + “/images/uploads/thumbnail.bmp”);
imgWebsiteThumbnailImage.ImageUrl = “~/images/uploads/thumbnail.bmp”;
imgWebsiteThumbnailImage.Visible = true;
}

public static Bitmap GetWebSiteThumbnail(string Url, int BrowserWidth, int BrowserHeight, int ThumbnailWidth, int ThumbnailHeight)
{
WebsiteThumbnailImage thumbnailGenerator = new WebsiteThumbnailImage(Url, BrowserWidth, BrowserHeight, ThumbnailWidth, ThumbnailHeight);
return thumbnailGenerator.GenerateWebSiteThumbnailImage();
}

private class WebsiteThumbnailImage
{
public WebsiteThumbnailImage(string Url, int BrowserWidth, int BrowserHeight, int ThumbnailWidth, int ThumbnailHeight)
{
this.m_Url = Url;
this.m_BrowserWidth = BrowserWidth;
this.m_BrowserHeight = BrowserHeight;
this.m_ThumbnailHeight = ThumbnailHeight;
this.m_ThumbnailWidth = ThumbnailWidth;
}

private string m_Url = null;
public string Url
{
get
{
return m_Url;
}
set
{
m_Url = value;
}
}

private Bitmap m_Bitmap = null;
public Bitmap ThumbnailImage
{
get
{
return m_Bitmap;
}
}

private int m_ThumbnailWidth;
public int ThumbnailWidth
{
get
{
return m_ThumbnailWidth;
}
set
{
m_ThumbnailWidth = value;
}
}

private int m_ThumbnailHeight;
public int ThumbnailHeight
{
get
{
return m_ThumbnailHeight;
}
set
{
m_ThumbnailHeight = value;
}
}

private int m_BrowserWidth;
public int BrowserWidth
{
get
{
return m_BrowserWidth;
}
set
{
m_BrowserWidth = value;
}
}

private int m_BrowserHeight;
public int BrowserHeight
{
get
{
return m_BrowserHeight;
}
set
{
m_BrowserHeight = value;
}
}

public Bitmap GenerateWebSiteThumbnailImage()
{
Thread m_thread = new Thread(new ThreadStart(_GenerateWebSiteThumbnailImage));
m_thread.SetApartmentState(ApartmentState.STA);
m_thread.Start();
m_thread.Join();
return m_Bitmap;
}

private void _GenerateWebSiteThumbnailImage()
{
WebBrowser m_WebBrowser = new WebBrowser();
m_WebBrowser.ScrollBarsEnabled = false;
m_WebBrowser.Navigate(m_Url);
m_WebBrowser.DocumentCompleted += new WebBrowserDocumentCompletedEventHandler(WebBrowser_DocumentCompleted);
while (m_WebBrowser.ReadyState != WebBrowserReadyState.Complete)
System.Windows.Forms.Application.DoEvents();
m_WebBrowser.Dispose();
}

private void WebBrowser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
{
WebBrowser m_WebBrowser = (WebBrowser)sender;
m_WebBrowser.ClientSize = new Size(this.m_BrowserWidth, this.m_BrowserHeight);
m_WebBrowser.ScrollBarsEnabled = false;
m_Bitmap = new Bitmap(m_WebBrowser.Bounds.Width, m_WebBrowser.Bounds.Height);
m_WebBrowser.BringToFront();
m_WebBrowser.DrawToBitmap(m_Bitmap, m_WebBrowser.Bounds);
m_Bitmap = (Bitmap)m_Bitmap.GetThumbnailImage(m_ThumbnailWidth, m_ThumbnailHeight, null, IntPtr.Zero);
}
}
}

Thank you for submitting this cool story – Trackback from DotNetShoutout…

Personally, I think that’s a bit annoying.. but you’re definitely spot on for what you need to do, to do what you’re doing. There isn’t a better solution that I’ve found yet for grabbing an entire thumbnail of a webpage.

It would be nice if we could do this without relying on the WebBrowser control as well. I looked once at WebKit.. there was a .NET port, but it wasn’t finished/working, etc.

- Matthew