ActivateListerData

If a script add-inimplements the **OnActivateLister**event, the method receives an ActivateListerData whenever the window activation state of a Lister changes.

Property Name	Return Type	Description
active	bool	Returns True if this Lister is activating, False if deactivating. Note that if the activation moves from one Lister straight to another the script will be called twice.
lister	object:Lister	Returns a Lister object representing the Lister that is closing.
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