Autohotkey: detect Num Lock enabled/disabled

Question

Using Autohotkey, I want to change the function of the *(Numpadmult) key from the number pad to Tab, but only when Num Lock is disabled. When Num Lock is active, it should remain *. As is possible?

Answer 1

Researching, I found the answer to my own question:

$NumpadMult::
   if ( GetKeyState("NumLock", "T") ) ; this will be 'true' if NumLock is toggled 'on'
      send *   
   Else
      send {tab}
return

Source: http://www.autohotkey.com/board/topic/62251-how-to-make-scroll-lock-toggle-a-hotkey/