You can use the .NET WebBrowser control to take thumbnails or full-size screenshots of loaded web pages, and then use the Bitmap class to save them locally.
For example, to generate a thumbnail, use:
public Bitmap GenerateThumbnail(string url){ //rendered at full size return GenerateScreenshot(url, -1, -1);}public Bitmap GenerateThumbnail(string url, int width, int height){ // Load the webpage into a WebBrowser control WebBrowser wb = new WebBrowser(); wb.ScrollBarsEnabled = false; wb.ScriptErrorsSuppressed = true; wb.Navigate(url); while (wb.ReadyState != WebBrowserReadyState.Complete) { Application.DoEvents(); } // Set the size of the WebBrowser control wb.Width = width; wb.Height = height; 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; } // 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)); wb.Dispose(); return bitmap;} Here are a couple of examples of calling the preceding code:
// Generate thumbnail of www.devx.com at 1024x768 resolutionBitmap thumbnail = GenerateThumbnail("http://www.devx.com", 1024, 768);// Generate thumbnail of a www.devx.com at full sizethumbnail = GenerateThumbnail("http://www.devx.com");
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