title: How to identify event is being called from Secondary tile
body: <p>When I run my Windows 8 application it creates a primary tile and a secondary tile.</p>
  
  <p>If I click on the primary tile it should open a URL. Clicking on the secondary tile should not open the URL and instead just a splash screen, so I added <code>Window.Current.VisibilityChanged += Window_VisibilityChanged;</code> to capture the event. But this gets called when you click on both tiles.</p>
  
  <p>How do I find out if the event is triggered from the primary or secondary tile?</p>
  
  <p>Another thing I noticed is if I click on the secondary tile it first hits the <code>window_VisibilityChanged</code> and also goes through the <code>onLaunched</code> method of <code>App.xmal.cs</code>.</p>
  
  <p>Is there a way to figure out if the event is being fired from secondary tile before it hits the <code>onLaunced</code> method?</p>