title: Take screenshot at specified resolution
body: <p>I am looking into possibly creating an app that will allow me to take a screenshot of a particular window (in this case the browser) at a specified resolution. </p>
  
  <p>I don't really want to actually change my monitors resolution. What I'd like to do is to be able to get a screenshot as it would appear at 800x600, 1024x768 etc etc.</p>
  
  <p>I know how to take a screenshot using .net / c# but I'm wondering if there's a way to "trick" it into taking one at a different resolution (there probably isn't but I thought I'd ask anyway, so excuse the potentially stupid question).</p>
  
  <p>Cheers</p>