DZone Snippets is a public source code repository. Easily build up your personal collection of code snippets, categorize them with tags / keywords, and share them with the world

I'm yunus emre.I'm a 24 year old.I have been living in istanbul,Turkey.I'm incredibly passionate about what I do and enjoy working with other open minded, enthusiastic people. I also like to share my experiences with others and blog regularly here. I currently have been working as a software engineer in intertech.I am developing software to functional requirements and fixing bugs on banking platform using microsoft technologies in here. I'm interested in backend software development and enterprise software organizations.I'm keen on mostly about software architectures , design patterns , object oriented programming and enterprise software development.I have wrote articles in my own blog and communities about these topics.Also i like drawing software diagrams To become a good software engineer requires a good theoretical background as well as practical experiences.Therefore I will try to improve myself daily.New technologies and experiences raises new ideas and so we can change the world with these ideas.I believe that. I want to work and consider on international projects in a international atmosphere Yunus Emre has posted 10 posts at DZone. You can read more from them at their website. View Full User Profile

Generating thumbnail(preview) image for website with c#

  • submit to reddit
using System;
using System.Drawing;
using System.Text.RegularExpressions;
using System.Threading;
using System.Windows.Forms;
public class WebsiteThumbImage
    public int ThumbWidth { get; set; }
    public int ThumbHeight { get; set; }
    public int BrowserWidth { get; set; }
    public int BrowserHeight { get; set; }
    public string Url { get; set; }
    public Bitmap ThumbImage { get; set; }
    public Bitmap Generate()
        if (ValidationControl())
            return null;
        Thread th = new Thread(new ThreadStart(_Execute));
        return ThumbImage;
    // just operational codes :D
    public void _Execute()
        WebBrowser browser = new WebBrowser();
        browser.ScrollBarsEnabled = false;
        browser.DocumentCompleted += browser_DocumentCompleted;
        while (browser.ReadyState != WebBrowserReadyState.Complete)
    void browser_DocumentCompleted(object sender, WebBrowserDocumentCompletedEventArgs e)
        WebBrowser WebBrowser = (WebBrowser)sender;
        WebBrowser.ClientSize = new Size(this.BrowserWidth, this.BrowserHeight);
        WebBrowser.ScrollBarsEnabled = false;
        this.ThumbImage = new Bitmap(WebBrowser.Bounds.Width, WebBrowser.Bounds.Height);
        WebBrowser.DrawToBitmap(this.ThumbImage, WebBrowser.Bounds);
        this.ThumbImage = (Bitmap)this.ThumbImage.GetThumbnailImage(this.ThumbWidth, this.ThumbHeight, null, IntPtr.Zero);
    private bool ValidationControl() 
        if (String.IsNullOrEmpty(this.Url))
            throw new ArgumentNullException();
        // for url validation
        if (!Uri.IsWellFormedUriString(this.Url, UriKind.RelativeOrAbsolute))
            throw new Exception();
        // another validation method -- using optional
        if (!IsValidUrl(this.Url))
            throw new Exception();
        return true;
    private bool IsValidUrl(string url)
        return Regex.IsMatch(url, @"(http|https)://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?");
// Let's use
 string url = ((string.IsNullOrEmpty(Request.Params["site"])) ? "" : Request.Params["site"]);
 int width = ((string.IsNullOrEmpty(Request.Params["width"])) ? 1000 : int.Parse(Request.Params["width"]));
 int height = ((string.IsNullOrEmpty(Request.Params["height"])) ? 940 : int.Parse(Request.Params["height"]));
 int capWidth = ((string.IsNullOrEmpty(Request.Params["capWidth"])) ? 900 : int.Parse(Request.Params["capWidth"]));
 int capHeight = ((string.IsNullOrEmpty(Request.Params["capHeight"])) ? 800 : int.Parse(Request.Params["capHeight"]));
 string address = "http://" + url;
 Bitmap thumbnail = WebsiteThumbnailImageGenerator.GetWebSiteThumbnail(address, capWidth, capHeight, width, height);
 Response.ContentType = "image/jpeg";
 thumbnail.Save(Response.OutputStream, ImageFormat.Jpeg);