title: How and why does QuickEdit mode in Command Prompt freeze applications?
body: <p>I recently ran into an issue with Command Prompt on Windows where QuickEdit mode was enabled and clicking the window was selecting text and hanging a running program. This is, apparently, known behaviour—I found a few questions related to it:</p>
  
  <ul>
  <li><a href="https://stackoverflow.com/q/591047/1267663">Command Line Windows Hanging in RDP Windows</a></li>
  <li><a href="https://stackoverflow.com/q/4453692/1267663">Windows Console Application Getting Stuck</a></li>
  <li><a href="https://stackoverflow.com/q/21805712/1267663">How to disable QuickEdit Mode for individual scripts</a></li>
  </ul>
  
  <p>How is the application "paused"/"suspended"? Is the process similar to the <code>SIGSTOP</code> signal on *nix? (I am also interested in understanding <em>why</em> this functionality exists in the first place? It seems unintuitive and dangerous.)</p>