title: HOW to get LOW touch point argument for each touch point in UWP by C#
body: <p>I need to filtrate touch point in an UWP app.  I need to filtrate touch point according to timestamp of a touch point, and get coordinate or id of the touch point.</p>
  
  <p>In a WPF application , I can get necessary data of touch point by using <code>TouchFrameEventArgs</code> class, and using the method <code>GetTouchPoints()</code>.</p>
  
  <p>But, In UWP app, what should I use? I want to get the first occurred touch point after a specific event occurs.</p>