LVSEARCH  String CS|CI First|Next

  Search the LV for "String"

  CS|CI means = Case Sensitive (CS) or Case Insensitive (CI) 

  First|next are for control :

    LVSearch "MyString" cs first 
    - will return with the first line containing "MyString". 

      You can get the line number, text etc of the line found, 
      via the @{" Listview internal variables " LINK "iv_listview"} 

      You can get the position of the string within the line
      via the @{" Search internal variables " LINK "iv_search"}

  You can thereafter call :

    LVSearch "MyString" CS next
    - again and again, to get the rest of the lines or strings.

  If there are 2 or more occurences of the same string in the
  same line, LVSearch will stop as many times as there are 
  strings for. (This has been added in version 3.6+)

  When there are no more more lines containing the given text, 
  then the $$lv.line internal variable will contain "" (nothing)
  and that's how you know you're finished.

  Note : "" is *not* the same as 0 in Gui4Cli.
         "" means Nothing - 0 means the top line.