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TestComplete Tip: How To Capture Scrolling Web Page Screenshots

September 29, 2006

Windows application screenshot? No problem. Web browser screenshot? No problem.

What's that? The web page is longer than the browser window and you need a
screenshot that captures the full body of the web page? Hmmm...

No problem! WebShot is a
free utility that captures scrolling web page screenshots. WebShot was created
by Nathan Moinvaziri and works perfectly.

Here's some code to use WebShot with TestComplete. Install WebShot and run this
code to do a screenshot of a scrolling web page and save it to the
TestComplete log.

// [TestComplete JScript/JavaScript] function Main() { // Log a pic of example.com LogWebScreenShot("http://www.example.com"); // Log a pic of Google News LogWebScreenShot("news.google.com"); // Save a pic of Cnet news.com if( WebScreenShot("news.com", "news_com_screenshot") ) Log.Link(Project.Path + "news_com_screenshot.png", "Web screenshot saved to a PNG file."); } // WebScreenShot() // Save a scrolling screenshot of a web page // as a PNG image file to this project directory // using Nathan Moinvaziri's WebShot utility // found at http://websitescreenshots.com function WebScreenShot(url, filename) { var cmd = '"C:\program files\WebShot\webshotcmd.exe"' cmd += ' /url ' + url; cmd += ' /encoder png'; cmd += ' /bwidth 1024'; cmd += ' /out "' + Project.Path + filename + '"'; cmd += ' /wait 30000"'; var WshShell = Sys.OleObject("WScript.Shell"); var oExec = WshShell.Exec(cmd); while (oExec.Status == 0){ Delay(100); }; stdout = oExec.StdOut.ReadAll(); // Check the command output to see if the // image was saved ok. status = stdout.indexOf('Saving web page image')>0; if (status == false) Log.Warning('WebScreenShot Failed =>', stdout); return(status); } // LogWebScreenShot() // Add a scrolling screenshot of a web page // to the TestComplete log. // Requires the function WebScreenShot() // which uses Nathan Moinvaziri's WebShot utility // found at http://websitescreenshots.com function LogWebScreenShot(url) { var filename, img; filename = 'webshottemp.png'; if (WebScreenShot(url,filename)){ img = Utils.Picture; r = img.LoadFromFile(Project.Path + filename); Log.Picture(img, "Screenshot of " + url); } else Log.Warning('Error capturing image of '+url); }

TestComplete Tip: How To Capture Scrolling Web Page Screenshots

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