annaicon.blogg.se

1. PHOTO CAPTURING A WEB PAGE INSTALL
2. PHOTO CAPTURING A WEB PAGE DRIVER
3. PHOTO CAPTURING A WEB PAGE CODE

You can now take screenshots of webpages! But now onto the edge cases. Save it down as a file (We can also get a byte array at this point if we want to instead push it to cloud storage etc).Īnd that’s literally it.We create our ChomeDriver with a very specific path, this is because without it, we get this weird error which again, I’ll talk about shortly.Mostly because it’s annoying having it pop up all the time, but headless also sometimes causes problems with screenshots (More on this later). Our options with Headless tells chrome that we don’t want to actually see the chrome window.Taking it step by step, it’s actually really easy (Almost too easy). Var screenshot = (driver as ITakesScreenshot).GetScreenshot()

PHOTO CAPTURING A WEB PAGE DRIVER

Var driver = new ChromeDriver(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location), options) Options.AddArgument("headless") //Comment if we want to see the window. ChromeOptions options = new ChromeOptions() Install-Package Our Selenium Screenshot Codeįirst I’ll give you the code, then we can talk it through. For me I want to use Chrome, but you can also choose to use Firefox or PhantomJS etc so modify the following command for what you need. So this is going to totally depend on which browser you want to do the browsing.

PHOTO CAPTURING A WEB PAGE INSTALL

Next we want to install the driver for the browser we want to use. Run the following from your package manager command line : Install-Package Selenium.Support The first is mandatory and that is the Selenium.Support package.

PHOTO CAPTURING A WEB PAGE CODE

And actually the ability to extend the code to be able to then *do* things on the page at a later date probably only makes it more of an attractive option. It took a few seconds to register but… Of course… Selenium can take screenshots of webpages! After all it’s just browser automation anyway! Admittedly it’s kinda heavy for just taking screenshots, but for my nice little utility I really didn’t care. I was going to say, you could use the Selenium part for clicking around the page if you needed it. Me : No I just need to do a get request for a page and save the result, that’s it.įriend : Oh OK.

While explaining the problem to a friend, the conversation went a bit like this :įriend : Do you need to manipulate the page in any way? Like click a link or something? Either I could use a dedicated paid library to save HTML to Image, or I could use many HTML to Image command line utilities – I would just have to invoke it from C# code. After hours of searching, It felt like I had two options. At some point, reading HTML (Or loading the HTML without any CSS/JS) become really tiresome so what I really wanted was the ability to take a screenshot of a webpage and save it as an image.īoy. When it didn’t, I was saving the HTML and I had to sift through it at a later date to try and work out what went wrong. It was a simple HTTP check to see if a webpage had a certain piece of text on it. I came across an interesting problem while developing a monitoring tool recently.