title: How to launch a location settings task on wp8？
body: <p>I noticed that one app named quick-settings has a feature which can launch location settings task（see the below link）， but I can‘t find the task in wp8 API list，can you tell me what is it？ </p>
  
  <p><a href="http://www.windowsphone.com/en-us/store/app/quick-settings/2a2cbaa7-6d75-420c-ae14-2339618da43e" rel="nofollow">http://www.windowsphone.com/en-us/store/app/quick-settings/2a2cbaa7-6d75-420c-ae14-2339618da43e</a></p>