event slot number

[NoutLost_]

when i try to set a variable to an event slot it set it to the name of the event slot and not the number is their a way to do this?
 

on inventory click:
  if clicked type is right mouse button:
    if name of event-inventory is "{@reportsgui}":
      cancel event
      set {guiclick} to clicked slot
      set {punishnow::%player%} to {%player%::%{_guiclick}%}
      wait a tick
      punish(player)

 

[Disvand]

set {guiclick} to index of event-slot