_Added in 1.9.0_
*on :TABCOMP:<*#?=!@>:*
Triggers when you press the TAB key in an Editbox and AdiIRC is about to perform [[Tabcomplete|tab completion]].
_Haltable using ^_
*Parameters*
- The level for the event to trigger.
<*#?=!@> - The [[Matchtarget]] to listen to.
- The commands to be performed when the event listener's criteria is met.
*Example*
on *:TABCOMP:#:/echo event: Tab completing text $1-