If a script add-in implements the OnCloseLister event, the method receives a CloseListerData object before a Lister is closed.

Property Name Return Type Description

lister

object:Lister 

Returns a Lister object representing the Lister that is closing.

prevent_save

bool

Set this to True to prevent the closing Lister from being saved as the new default Lister.

qualifiers

string

Returns a string indicating any qualifier keys that were held down by the user when the event was triggered.
The string can contain any or all of the following: shift ctrl, alt, lwin, rwin
If no qualifiers were down, the string will be: none

shutdown

bool

Returns True if the Lister is closing because Opus is shutting down.