title: Redraw balloon tip and tooltip in C#?
body: <p>I wrote a C# application that is a simple countdown timer. I use it myself to keep track of cooking time (not to forget about boiling pasta) and other purposes.</p>
  
  <p>It works in the tray. When hovering the icon it shows remaining time as a tooltip. When clicked it shows remaining time in a balloon tip. I would like displayed time to be "ticking down", i.e. to update every second.</p>
  
  <p>How do I force update/redraw of the balloon and tool tip?</p>
  
  <p><strong>EDIT:</strong> I don't need to redraw the balloon itself. I only need time to be changing. In some sense I want to invalidate the balloon window, so that Windows will read text stored in BalloonText property and redraw it.</p>