Listbox - Aug. '98 - by Marc BARILLEY
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Overview
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This module provides a simple listbox on the client interface.
You may initiate the listbox with items at startup.


Actions
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  start : activate the module on the client
  kill  : desactivate the module
  show  : shows the listbox
  hide  : hides the listbox (without killing it)
  add   : adds a string (the parameter) to the listbox
  del   : deletes a string (the parameter) from the listbox

Events
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  started : client module activated
  killed  : client module desactivated
  shown   : listbox shown
  hidden  : listbox hidden
  click   : user clicked on a selection in the listbox (the parameter is the current selection)
  dclick  : user double clicked on a selection in the listbox (the parameter is the current selection)
  empty   : the listbox is empty