_Added in 1.9.0_

*/haltdef*

Tell's AdiIRC to not output it's own default text in a ^ event, without halting the entire script.

*Example*

<pre>
on ^*:op:#channel:{
  ; Tell AdiIRC to not display the usual message when someone is opped.
  /haltdef

  ; Instead display your own message.
  /echo -t #channel OP : $opnick by $nick
}
</pre>