From PDF XChange PDF SDK
The event is fired after the action has been performed. This event is used in pair with the Before Run Action Event.
|Specifies whether the event was handled. Marking the event as handled will cause the event sender to look at the event`s result and act accordingly based on the event type.
| Specifies the result that will be used by the event sender when the event is marked as Handled. This result is passed from the
Before Run Action Event. If the Result is not 0 then the action execution was canceled.