title: C++ Timer that runs at back of an C++ application
body: <p>I have a C++ application that is running on the foreground. I need a timer that will run at the same time as the application. When the timer reaches zero, I need the timer to popup a window.</p>
  
  <p>I can't use sleep() because the <code>who</code> application sleeps. Please advice on how to do this.</p>