title: Draw horizontal line in ListView to show dropping place
body: <p>When in Foobar2000 I drag-and-drop files into playlist, the ListView shows the place of dropping tracks:</p>
  
  <p><a href="https://i.stack.imgur.com/QaIGG.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/QaIGG.png" alt="enter image description here"></a></p>
  
  <p>I'm looking for a way to implement this feature. Is it just drawn by Graphics library, or do I have some implemented method to show horizontal line on ListView?</p>