title: Get pressed keys in J2ME with GameCanvas
body: <p>I would like to get whether (for example) the 3 key is pressed (<code>KEY_NUM3</code>).<br>
  I have tried <code>getKeyStates</code> but it only detects the game action keys.<br>
  How could I get the states of non-game action keys?<br>
  (I have overridden the <code>keyPressed</code> and <code>keyReleased</code> functions of Canvas and storing the key states in an array (I'm using a <code>Vector</code> for storing but I think could store them in an array too, if that's the problem), but this does not seem to be very nice)</p>