title: AutoHotkey - press Ctrl+Alt only, without any characters
body: <p>I can see that Ctrl+Alt+Delete is not possible with AutoHotkey, but what about just Ctrl+Alt?</p>
  
  <p>Things I've tried:</p>
  
  <pre><code>; 1
  #+y::
  Send, {Ctrl}{Alt}
  return
  
  ;2
  #+y::
  Send, {Ctrl down}
  Send, {Alt down}
  Send, {Alt up}
  Send, {Ctrl up}
  return
  
  ;3
  #+y::
  Send, {LCtrl down}
  Send, {LAlt down}
  Send, {LAlt up}
  Send, {LCtrl up}
  return
  
  ;4
  #+y::
  Send, !^
  return
  
  ;5
  #+y::
  Send, {ctrl down}{alt down}{2}{alt up}{ctrl up}
  return
  </code></pre>
  
  <p>Any ideas?</p>