it returned this error
Bad 'player' pointer @ 'setControlState'(1)
for me, then i did this
setControlState ( player, "enter_exit", true )
outputChatBox("* i wrote something here",player,0,255,0)
setTimer(setControlState ,1000,1,player,"enter_exit",true)
you can even try it on client side ( you can use trigger if the script is serversided )
setControlState ( "enter_exit", true )
* Edit : sorry forgot to add the state name