How to capture the screenshot of a specific element rather than entire page using Selenium Webdriver

Question

Currently I m trying to capture a screenshot using the Selenium WebDriver  But I can only obtain the whole page screen shot  However  what I wanted is just to capture a part of the page or perhaps just on specific element based on ID or any specific element locator   For example  I wish to capture the picture with image id    Butterfly    Is there any way to capture a screenshot by selected item or element

User · Accepted Answer

We can get the element screenshot by cropping entire page screenshot as below   driver get  http   www google com    WebElement ele   driver findElement By id  hplogo         Get entire page screenshot File screenshot     TakesScreenshot driver  getScreenshotAs OutputType FILE   BufferedImage  fullImg   ImageIO read screenshot       Get the location of element on the page Point point   ele getLocation        Get width and height of the element int eleWidth   ele getSize   getWidth    int eleHeight   ele getSize   getHeight        Crop the entire page screenshot to get only element screenshot BufferedImage eleScreenshot  fullImg getSubimage point getX    point getY        eleWidth  eleHeight   ImageIO write eleScreenshot   png   screenshot       Copy the element screenshot to disk File screenshotLocation   new File  C   images  GoogleLogo screenshot png    FileUtils copyFile screenshot  screenshotLocation

User · Answer

Consider using needle - tool for automated visual comparison https   github com bfirsh needle   which has built-in functionality that allows to take screenshots of specific elements  selected by CSS selector   The tool works on Selenium s WebDriver and it s written in Python

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using System Drawing  using System Drawing Imaging  using OpenQA Selenium  using OpenQA Selenium Firefox   public void ScreenshotByElement         IWebDriver driver   new FirefoxDriver        String baseURL    www google com      url link     String filePath     c   img1 png              driver Navigate   GoToUrl baseURL       var remElement   driver FindElement By Id  Butterfly         Point location   remElement Location       var screenshot    driver as FirefoxDriver  GetScreenshot        using  MemoryStream stream   new MemoryStream screenshot AsByteArray                 using  Bitmap bitmap   new Bitmap stream                         RectangleF part   new RectangleF location X  location Y  remElement Size Width  remElement Size Height               using  Bitmap bn   bitmap Clone part  bitmap PixelFormat                                 bn Save filePath  ImageFormat Png

User · Answer

The ASHOT framework from Yandex can be used for taking screenshots in Selenium WebDriver scripts for   full web pages web elements   This framework can be found on https   github com yandex-qatools ashot   The code for taking the screenshots is very straightforward   ENTIRE PAGE  screenshot   new AShot   shootingStrategy  new ViewportPastingStrategy 1000   takeScreenshot driver   ImageIO write screenshot getImage     PNG   new File  c   temp  results png       SPECIFIC WEB ELEMENT  screenshot   new AShot   takeScreenshot driver   driver findElement By xpath     div  id  ct search    1        ImageIO write screenshot getImage     PNG   new File  c   temp  div element png       See more details and more code samples on this article

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Python 3  Tried with Selenium 3 141 0 and chromedriver 73 0 3683 68  this works   from selenium import webdriver  chromedriver     usr local bin chromedriver  chromeOptions   webdriver ChromeOptions   chromeOptions add argument  window-size 1366x768   chromeOptions add argument  disable-extensions   cdriver   webdriver Chrome options chromeOptions  executable path chromedriver   cdriver get  url   element   cdriver find element by css selector   some-css selector    element screenshot as png  elemenent png     No need to get a full image and get a section of a fullscreen image    This might not have been available when Rohit s answer was created

User · Answer

I m using a modified version of  Brook s answer and is working fine even for elements that needs the page to be scrolled   public void TakeScreenshot string fileNameWithoutExtension  IWebElement element           Scroll to the element if necessary     var actions   new Actions  driver       actions MoveToElement element       actions Perform           Get the element position  scroll-aware      var locationWhenScrolled     RemoteWebElement  element  LocationOnScreenOnceScrolledIntoView      var fileName   fileNameWithoutExtension     png       var byteArray     ITakesScreenshot   driver  GetScreenshot   AsByteArray      using  var screenshot   new System Drawing Bitmap new System IO MemoryStream byteArray                  var location   locationWhenScrolled             Fix location if necessary to avoid OutOfMemory Exception         if  location X   element Size Width  gt  screenshot Width                        location X   screenshot Width - element Size Width                    if  location Y   element Size Height  gt  screenshot Height                        location Y   screenshot Height - element Size Height                       Crop the screenshot         var croppedImage   new System Drawing Rectangle location X  location Y  element Size Width  element Size Height           using  var clone   screenshot Clone croppedImage  screenshot PixelFormat                         clone Save fileName  ImageFormat Png                       The two ifs were necessary  at least for the chrome driver  because the size of the crop exceeded in 1 pixel the screenshot size  when scrolling was needed

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For everyone asking for code in C   below is a simplified version of my implementation   public static void TakeScreenshot IWebDriver driver  IWebElement element        try               string fileName   DateTime Now ToString  yyyy-MM-dd HH-mm-ss       jpg           Byte   byteArray     ITakesScreenshot driver  GetScreenshot   AsByteArray          System Drawing Bitmap screenshot   new System Drawing Bitmap new System IO MemoryStream byteArray            System Drawing Rectangle croppedImage   new System Drawing Rectangle element Location X  element Location Y  element Size Width  element Size Height           screenshot   screenshot Clone croppedImage  screenshot PixelFormat           screenshot Save String Format   C  SeleniumScreenshots     fileName  System Drawing Imaging ImageFormat Jpeg              catch  Exception e                logger Error e StackTrace         e Message

User · Answer

If you are looking for a JavaScript solution  here s my gist   https   gist github com sillicon 4abcd9079a7d29cbb53ebee547b55fba  The basic idea is the same  take the screen shot first  then crop it  However  my solution will not require other libraries  just pure WebDriver API code  However  the side effect is that it may increase the load of your testing browser

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I wasted a lot of time on taking screenshot and I want to save yours   I have used chrome   selenium   c  the result was totally horrible  Finally i wrote a function    driver Manage   Window Maximize                 RemoteWebElement remElement    RemoteWebElement driver FindElement By Id  submit-button                   Point location   remElement LocationOnScreenOnceScrolledIntoView                  int viewportWidth   Convert ToInt32   IJavaScriptExecutor driver  ExecuteScript  return document documentElement clientWidth                  int viewportHeight   Convert ToInt32   IJavaScriptExecutor driver  ExecuteScript  return document documentElement clientHeight                   driver SwitchTo                  int elementLocation X   location X               int elementLocation Y   location Y                IWebElement img   driver FindElement By Id  submit-button                   int elementSize Width   img Size Width               int elementSize Height   img Size Height                Size s   new Size                 s Width   driver Manage   Window Size Width               s Height   driver Manage   Window Size Height                Bitmap bitmap   new Bitmap s Width  s Height                Graphics graphics   Graphics FromImage bitmap as Image                graphics CopyFromScreen 0  0  0  0  s                 bitmap Save filePath  System Drawing Imaging ImageFormat Png                 RectangleF part   new RectangleF elementLocation X  elementLocation Y    s Height - viewportHeight   elementSize Width  elementSize Height                 Bitmap bmpobj    Bitmap Image FromFile filePath                Bitmap bn   bmpobj Clone part  bmpobj PixelFormat                bn Save finalPictureFilePath  System Drawing Imaging ImageFormat Png

User · Answer

I think most of the answers here are over-engineered  The way i did it is through 2 helper methods  the first to wait for an element based on any selector  and the second to take a screenshot of it  Note  We cast the WebElement to a TakesScreenshot instance  so we only capture that element in the image specifically  If you want the full page window  you should cast driver instead  WebDriver driver   new FirefoxDriver       define this somewhere  or chrome etc   public  lt T gt  T screenshotOf By by  long timeout  OutputType lt T gt  type        return   TakesScreenshot  waitForElement by  timeout                getScreenshotAs type      public WebElement waitForElement By by  long timeout        return new WebDriverWait driver  timeout               until driver - gt  driver findElement by       And then just screenshot whatever u want like this   long timeout   5       in seconds    Screenshot  to file  based on first occurence of tag    File sc   screenshotOf By tagName  quot body quot    timeout  OutputType FILE       Screenshot  in memory  based on CSS selector  e g  first image in body who s  quot src quot  attribute starts with  quot https quot       byte   sc   screenshotOf By cssSelector  quot body  gt  img href   https   quot    timeout  OutputType BYTES

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In Node js  I wrote the following code which works but it is not based on selenium s official WebDriverJS  but based on SauceLabs s WebDriver  WD js and a very compact image library called EasyImage    I just wanna emphasize that you cannot really take the screenshot of an element but what you should do is to first  take the screenshot of the whole page  then select the part of the page you like and crop that specific part   browser get URL TO VISIT          waitForElementById dependentElementId  webdriver asserters isDisplayed  3000          elementById elementID           getSize   then function size                browser elementById elementID                      getLocation   then function location                            browser takeScreenshot   then function data                                var base64Data   data replace   data image  png base64                                     fs writeFile filePath  base64Data   base64   function err                                    if  err                                        console log err                                                                      else                                       cropInFile size  location  filePath                                                                     doneCallback                                                                                               And the cropInFileFunction  goes like this   var cropInFile   function size  location  srcFile        easyimg crop               src  srcFile              dst  srcFile              cropwidth  size width              cropheight  size height              x  location x              y  location y              gravity   North-West                     function err  stdout  stderr                if  err  throw err

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This is my version  in C   I was basically get most part from Brook s answer and modified it to fit my purpose  public static byte   GetElementImage this IWebElement element                var screenShot   MobileDriver Driver GetScreenshot            using  var stream   new MemoryStream screenShot AsByteArray                         var screenBitmap   new Bitmap stream               var elementBitmap   screenBitmap Clone                  new Rectangle                      element Location X                      element Location Y                      element Size Width                      element Size Height                                    screenBitmap PixelFormat                            var converter   new ImageConverter                return  byte    converter ConvertTo elementBitmap  typeof byte

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public void GenerateSnapshot string url  string selector  string filePath                using  IWebDriver driver   new ChromeDriver                          driver Navigate   GoToUrl url               var remElement   driver FindElement By CssSelector selector                Point location   remElement Location               var screenshot    driver as ChromeDriver  GetScreenshot                using  MemoryStream stream   new MemoryStream screenshot AsByteArray                                 using  Bitmap bitmap   new Bitmap stream                                         RectangleF part   new RectangleF location X  location Y  remElement Size Width  remElement Size Height                       using  Bitmap bn   bitmap Clone part  bitmap PixelFormat                                                 bn Save filePath  System Drawing Imaging ImageFormat Png                                                                     driver Close

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c  code   public Bitmap MakeElemScreenshot  IWebDriver driver  WebElement elem        Screenshot myScreenShot     ITakesScreenshot driver  GetScreenshot         Bitmap screen   new Bitmap new MemoryStream myScreenShot AsByteArray        Bitmap elemScreenshot   screen Clone new Rectangle elem Location  elem Size   screen PixelFormat        screen Dispose         return elemScreenshot

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I believe this isn t going to work for you as you use C  and my solution includes a Java library  however maybe others will find it helpful   For capturing custom screenshots you can use the Shutterbug library  The specific call for this purpose would be   Shutterbug shootElement driver  element  save

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If you get an exception java awt image RasterFormatException in chrome  or you want to scroll a element into view then capture a screenshot    Here is a solution from  Surya answer           JavascriptExecutor jsExecutor    JavascriptExecutor  driver          Long offsetTop    Long  jsExecutor executeScript  window scroll 0  document querySelector     cssSelector      offsetTop - 0   return document querySelector     cssSelector      getBoundingClientRect   top              WebElement ele   driver findElement By cssSelector cssSelector                Get entire page screenshot         File screenshot     TakesScreenshot driver  getScreenshotAs OutputType FILE           BufferedImage  fullImg   ImageIO read screenshot               Get the location of element on the page         Point point   ele getLocation                Get width and height of the element         int eleWidth   ele getSize   getWidth            int eleHeight   ele getSize   getHeight                Crop the entire page screenshot to get only element screenshot         BufferedImage eleScreenshot  fullImg getSubimage point getX    Math toIntExact offsetTop                   eleWidth  eleHeight           ImageIO write eleScreenshot   png   screenshot               Copy the element screenshot to disk         File screenshotLocation   new File  c   temp  div element 1 png            FileUtils copyFile screenshot  screenshotLocation

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I followed the sample code from  codeslord  but for some reason I had to access my screenshot data differently      Open the Firefox webdriver  driver   webdriver Firefox      Find the element that you re interested in  imagepanel   driver find element by class name  panel-height-helper      Access the data bytes for the web element  datatowrite   imagepanel screenshot as png    Write the byte data to a file  outfile   open  imagepanel png    wb    outfile write datatowrite   outfile close      using Python 3 7  Selenium 3 141 0 and Mozilla Geckodriver 71 0 0 7222

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Surya s answer works great if you don t mind involving disk IO  If you d rather not  then this method may be better for you  private Image getScreenshot final WebDriver d  final WebElement e  throws IOException       final BufferedImage img      final Point topleft      final Point bottomright       final byte   screengrab      screengrab     TakesScreenshot  d  getScreenshotAs OutputType BYTES        img   ImageIO read new ByteArrayInputStream screengrab           crop the image to focus on e       get dimensions  crop points      topleft   e getLocation        bottomright   new Point e getSize   getWidth                                e getSize   getHeight          return img getSubimage topleft getX                               topleft getY                               bottomright getX                               bottomright getY         If you prefer you can skip declaring screengrab and instead doing   img   ImageIO read      new ByteArrayInputStream            TakesScreenshot  d  getScreenshotAs OutputType BYTES       which is cleaner  but I left it in for clarity  You can then save it as a file or put it in a JPanel to your heart s content

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Below the function for taking snapshot a specific element in Selenium  Here the driver is a type of WebDriver    private static void getScreenshot final WebElement e  String fileName  throws IOException     final BufferedImage img    final Point topleft    final Point bottomright    final byte   screengrab    screengrab     TakesScreenshot  driver  getScreenshotAs OutputType BYTES     img   ImageIO read new ByteArrayInputStream screengrab      topleft   e getLocation      bottomright   new Point e getSize   getWidth    e getSize   getHeight       BufferedImage imgScreenshot          BufferedImage img getSubimage topleft getX    topleft getY    bottomright getX    bottomright getY       File screenshotLocation   new File  Images   fileName    png          ImageIO write imgScreenshot   png   screenshotLocation

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Here is a Python 3 version using Selenium webdriver and Pillow  This program captures the screenshot of the whole page and crop the element based on its location  The element image will be available as image png  Firefox supports saving element image directly using element screenshot as png  image name     from selenium import webdriver from PIL import Image  driver   webdriver Chrome   driver get  https   www google co in    element   driver find element by id  lst-ib    location   element location size   element size  driver save screenshot  shot png    x   location  x   y   location  y   w   size  width   h   size  height   width   x   w height   y   h  im   Image open  shot png   im   im crop  int x   int y   int width   int height    im save  image png     Update  Now chrome also supports individual element screenshots  So you may directly capture the screenshot of the web element as given below   from selenium import webdriver  driver   webdriver Chrome   driver get  https   www google co in   image   driver find element by id  lst-ib   screenshot as png    or   element   driver find element by id  lst-ib     element screenshot as png  image png

User · Answer

Here is an extension function for C    public static BitmapImage GetElementImage this IWebDriver webDriver  By by        var elements   webDriver FindElements by       if  elements Count    0          return null       var element   elements 0       var screenShot    webDriver as ITakesScreenshot  GetScreenshot        using  var ms   new MemoryStream screenShot AsByteArray                 Bitmap screenBitmap          screenBitmap   new Bitmap ms           return screenBitmap Clone              new Rectangle                  element Location X                  element Location Y                  element Size Width                  element Size Height                            screenBitmap PixelFormat           ToBitmapImage              Now you can use it to take the image of any element like this   var image   webDriver GetElementImage By Id  someId

[selenium] How to capture the screenshot of a specific element rather than entire page using Selenium Webdriver?

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