title: Detect Alt-Tab/Task Switching/ForegroundStaging Window accurately
body: <p>Given a valid <code>hwnd</code>, how can we verify if it is indeed the alt-tab window?</p>
  <p>One of my previous methods was to get the class of the window that the <code>hwnd</code> belongs to, then compare it to these values: <code>MultitaskingViewFrame</code>, <code>ForegroundStaging</code>, <code>TaskSwitcherWnd</code> and <code>TaskSwitcherOverlayWnd</code>.</p>
  <p>However, I've come to realise that class names are not unique across the system, and indeed one can <code>RegisterClassEx</code> a class with the same name as the above names, which means my method above would give false positives.</p>