title: XE4 getting the total disk size
body: <p>can someone points or helps me in getting the IPHONE / IPAD device total disk size using the Delphi XE4 .</p>
  
  <p>i need just a start point , i tried to use the :</p>
  
  <pre><code>Device : UIDevice;
  </code></pre>
  
  <p>but it has no reference . </p>
  
  <p>thank you</p>