title: How to create a WPF Window without a border that can be resized via a grip only?
body: <p>If you set <code>ResizeMode="CanResizeWithGrip"</code> on a WPF <code>Window</code> then a resize grip is shown in the lower right corner, as below:</p>
  
  <p><img src="https://i.stack.imgur.com/kwmCH.png" alt=""></p>
  
  <p>If you set <code>WindowStyle="None"</code> as well the title bar disappears but the grey bevelled edge remains until you set <code>ResizeMode="NoResize"</code>.  Unfortunately, with this combination of properties set, the resize grip also disappears.</p>
  
  <p>I have overridden the <code>Window</code>'s <code>ControlTemplate</code> via a custom <code>Style</code>.  I want to specify the border of the window myself, and I don't need users to be able to resize the window from all four sides, but I do need a resize grip.</p>
  
  <p>Can someone detail a simple way to meet all of these criteria?</p>
  
  <ol>
  <li><strong>Do not</strong> have a border on the <code>Window</code> apart from the one I specify myself in a <code>ControlTemplate</code>.</li>
  <li><strong>Do</strong> have a working resize grip in the lower right corner.</li>
  <li><strong>Do not</strong> have a title bar.</li>
  </ol>