OpenListerData

If a script add-inimplements the OnOpenLister event, the method receives an OpenListerData object when invoked when a new Lister opens.

Property Name	Return Type	Description
after	bool	Initially this is set to False, indicating that the event has been called before any tabs have been created. If you return True from the OnOpenLister event, it will be called again and after will be set to True to indicate all tabs have been created.
lister	object:Lister	Returns a Lister object representing the newly opened 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