$fline

Returns the number of the line in a custom window that matches the specified wildtext or regular expression.

$fline(@name,wildtext|regexp [,N][,T])

• The first parameter is the name of the window.
• The second parameter is the wildcard string to attempt to match a line against.
• N is the line number to start your search from. It is optional, and will default to 1 (the entire window).
• T is an optional flag that specifies the location of the search in the window.
  • 1 indicates to reference the listbox.
  • 2 indicates that a regular expression was specified.
  • 3 indicates both (to reference the listbox, and use a regular expression)