title: WPF Popup ZOrder
body: <p>I am using a WPF Popup, but it popups up above every single window on my desktop, even when my application is minimized.  How can I make it stay only on the window it originated?  The same thing happens when my window is behind other windows: the popup displays above them all.</p>
  
  <p>"There must be something can be done!"</p>
  
  <p>Thanks.</p>