Custom Handlers for Listers: The Events
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The rexx message identifies the type of event, the lister the event
happened to, and other pertinent data.

The events that you will be notified of are:-

  active 
  doubleclick 
  drop 
  dropfrom 
  edit 
  inactive 
  parent 
  path 
  reread 
  root 
  snapshot 
  unsnapshot 
  Trapped Functions 
  AddStem Pop-Ups 
  Lister2 Pop-Ups