title: How to set popup menu for ListView header bar together with items popup menu?
body: <p>I have a ListView with <code>ViewStyle = vsReport</code> and two popup menus:</p>
  
  <ol>
  <li><strong>Column popup menu</strong>, which I want to open when user right-clicking the header bar</li>
  <li><strong>Item popup menu</strong>, must open when the user right-clicking any list item/subitem or whitespace below items.</li>
  </ol>
  
  <p>What is the most correct way to show that menus? Which events should I handle?</p>
  
  <p>The problem is when I set <code>ListView.PopupMenu</code> property, the popup menu appearing after right-clicking any point in ListView's client rectangle. </p>
  
  <p>When I handle <code>ListView.OnColumnRightClick</code> event, if fires only after clicking on column header, excluding free space of the header bar (on the right of columns).</p>
  
  <p>Event <code>LisView.OnMouseUp</code> fires only after right-clicking on whitespace below items.</p>