Screen Capture in C# using HtmlAgilityPack

Question

Screen Capture in C# using HtmlAgilityPack

c# html-agility-pack

Question

Due to the lack of proper documentation, I'm not sure if HtmlAgilityPack supports screen capture in C# after it loads the html contents.

So is there a way I can more or less grab a screenshot using (or along with) HtmlAgilityPack so I can have a visual clue as to what happens every time I do page manipulations?

Here is my working code so far:

using HtmlAgilityPack;
using System;

namespace ConsoleApplication4
{
    class Program
    {
        static void Main(string[] args)
        {
            string urlDemo = "https://htmlagilitypack.codeplex.com/";
            HtmlWeb getHtmlWeb = new HtmlWeb();
            var doc = getHtmlWeb.Load(urlDemo);
            var sentence = doc.DocumentNode.SelectNodes("//p");
            int counter = 1;           
            try
            {
                foreach (var p in sentence)
                {
                    Console.WriteLine(counter + ". " + p.InnerText);
                    counter++;
                }
            }
            catch (Exception e)
            { 
                Console.WriteLine(e);
            }  
            Console.ReadLine();            
        }
    }
}

Currently, it scrapes and output all the p of the page in the console but at the same time I want to get a screen grab of the scraped contents but I don't know how and where to begin.

Any help is greatly appreciated. TIA

anagnam

Popular Answer

Could you use Selenium WebDriver instead?

You'll need to add the following NuGet packages to your project first:

Loading a page and taking a screenshot is then as simple as...

using System;
using System.Drawing.Imaging;
using System.IO;
using OpenQA.Selenium;
using OpenQA.Selenium.Firefox;
using OpenQA.Selenium.Support.UI;

namespace SeleniumTest
{
    class Program
    {
        static void Main(string[] args)
        {
            // Create a web driver that used Firefox
            var driver = new FirefoxDriver(
                new FirefoxBinary(), new FirefoxProfile(), TimeSpan.FromSeconds(120));

            // Load your page
            driver.Navigate().GoToUrl("http://google.com");

            // Wait until the page has actually loaded
            var wait = new WebDriverWait(driver, new TimeSpan(0, 0, 10));
            wait.Until(d => d.Title.Contains("Google"));

            // Take a screenshot, and saves it to a file (you must have full access rights to the save location).
            var myDesktop = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
            ((ITakesScreenshot)driver).GetScreenshot().SaveAsFile(Path.Combine(myDesktop, "google-screenshot.png"), ImageFormat.Png);

            driver.Close();
        }
    }
}

Richard Everett

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Screen Capture in C# using HtmlAgilityPack

Question

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Performance

Expression Evaluator