LISTVIEW COMMANDS
                  ----------------------------

  Listviews have the following dedicated Event Commands.

  All the commands (except LVUse) will act on the CURRENT listview, 
  or the CURRENT RECORD of the current listview.

   LVUSE      GuiFile GadID

  - Loading saving files :

   LVCHANGE   NewFromFile
   LVSAVE     SaveFileName
   LVCLEAR    

  - Handling listviews :

   LVGO       first|next|prev|last|#LineNumber
   LVMOVE     +-offset (do also #rec)

   LVFIND     String
   LVSORT     ASC|DSC|%FieldName
   LVSEARCH   string cs|ci first|next
   LVREP      OldString NewString CI|CS

   LVSWITCH   Gui ID

  - Acting on records :

   LVADD      String
   LVINSERT   RecordNumber String
   LVPUT      string
   LVDEL      LineNumber (or -1 for current line)
   LVCLIP     CUT|COPY lines|-1 ADD|PASTE|INSERT gui ID

  - MultiSelect listviews :

   LVMULTI    First|Next|ON|OFF

  - Commands for DIRECTORY LISTVIEWS :

   LVDIR      All|None|Parent|Root|Disks|#dirname(string)
   LVACTION   COPY|COPYNEW|MOVE|DELETE|SIZE|PROTECT|CLI Dest|REQ|NOREQ|Var|Mask

  - Various :

   LVMODE     NUM|TXT|MULTI|DIR

  - Gadget modifier :

   LVCOLORS   GuiFile GadID ForeGround BackGround Selected Dirs
                  (it is better to use  attributes  for colors etc)

  - DataBase listview commands :

   DBSUM      ALL|SELECTED|UNSELECTED %FieldName ResultVar
   RECSORT    %FieldName

  --------------------------------------------------------------------
  An example gui :  Run Gui   Source 

  *** IMPORTANT: A note about acting on listviews ***

  It is *much* faster to  HIDE  an lv and act on it (with commands
  like lvadd, lvput etc) and then SHOW it again, than to have the LV
  updated continuously while actions are going on. When you show it 
  again, you must "nudge" it into redrawing itself - with LVMULTI SHOW
  or LVMOVE 0