title: Disable A Particular Key in AS3
body: <p>I know it should be simple, but I can't find a solution to this question.</p>
  
  <p>How do i disable a particular key in AS3?</p>
  
  <p>e.g. disable 'A' key, or 'Minus' key etc...</p>
  
  <p>Thanks in advance for your help.</p>