The 窶廢vent窶 popup menu is used to choose the event type. An AppleScript event supports only one event type: the 窶彜ubroutine窶 event. This event calls a subroutine in an AppleScript applet. The event also sends the input value received from the predecessors of the event as a parameter to this subroutine.
If you want the result value of the subroutine (if there are one) to be passed on to the successors of the event, be sure to check the 窶廢xpect script reply窶 option checkbox. Otherwise the event will just pass on zero.
