Snapshot using WebBrowser

class Program
{
    [STAThread]
    public static void Main(string[] args)
    {
        var image = Capture("http://www.yahoo.com", 1024, 768);
        image.Save("aa.png", System.Drawing.Imaging.ImageFormat.Png);
    }

     
    static Image Capture(string url, int width, int height)
    {
        using (WebBrowser wb = new WebBrowser())
        {
            // skip script error
            wb.ScriptErrorsSuppressed = true;
            wb.ScrollBarsEnabled = false;
            wb.AllowNavigation = true;
            // Set the size of the WebBrowser control
            wb.Width = width;
            wb.Height = height;
            ServicePointManager.ServerCertificateValidationCallback
                = new System.Net.Security.RemoteCertificateValidationCallback((sender, certificate, chain, sslPolicyErrors) =>
                {
                    return true;
                });


            if (width == -1)
            {
                // Take Screenshot of the web pages full width
                wb.Width = wb.Document.Body.ScrollRectangle.Width;
            }

            if (height == -1)
            {
                // Take Screenshot of the web pages full height
                wb.Height = wb.Document.Body.ScrollRectangle.Height;
            }

            wb.Navigate(url);
            while (wb.ReadyState != WebBrowserReadyState.Complete)
            {
                Application.DoEvents();
            }
            System.Threading.Thread.Sleep(5000);
            wb.Update();

            // 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 Rectangle(0, 0, wb.Width, wb.Height));
            return bitmap;
        }
    }
}