title: Finding the scan code of FN Key
body: <p>I want to use <kbd>Fn</kbd>+<kbd>S</kbd> to emulate <kbd>Ctrl</kbd>+<kbd>S</kbd>, so far this is my code:</p>
  
  <pre><code> #InstallKeybdHook
   #Persistent
  
    SC126 &amp; s::
       Send ^{s}
    return
  </code></pre>
  
  <p>My problem is that I don't know the <code>Fn</code> key's scan code.<br>
  How can I find it?</p>