OnCloseLister

The OnCloseLister event can be implemented by a script add-in to receive notification whenever a Lister is closed.

Method Name:	OnCloseLister
Argument Type:	CloseListerData
Return Type:	bool
Description:	The CloseListerData.lister property identifies the Lister that is closing. The shutdown property is True if the Lister is closing because Opus (or Windows) is shutting down. If shutdown is False, you can prevent the Lister from closing by returning True from this event (or False to allow the close, which is the default). If Opus or Windows is shutting down then you can't prevent the Lister from closing.