title: Is it possible to refresh 3rd party widgets?
body: <p>I'm writing an application that changes the screen brightness.  I also use a 3rd party widget that both changes the screen brightness and displays the current brightness value.  My program and the 3rd party widget have different functions and I want to continue to use them both.  However, when my application changes the screen brightness, the 3rd party widget doesn't automatically refresh to reflect this change.  So, my questions are:</p>
  
  <ul>
  <li><p>Is it possible for my application to call the 3rd party widget to be refreshed?</p></li>
  <li><p>If so, is this done by refreshing every widget on the phone, or can I target that specific widget (by package name, for example)?</p></li>
  </ul>