title: In titanium how to take a screenshot of full scrollview?
body: <p>I am developing for IOS using Titanium Appcelerator</p>
  
  <p>I want to take screenshot of a full scrollview which is taller than the screen  </p>
  
  <p>the following code will take a screen shot of only the visible UI on the device</p>
  
  <pre><code>Ti.Media.takeScreenshot(function(e){
      Ti.Media.saveToPhotoGallery(e.media);
  });
  </code></pre>
  
  <p>my question is how take a screen shot for the whole scrollview</p>
  
  <p>best regards</p>