GET_INFO(RANGE_VARIABLE)

     For an overview of the GET_INFO built-in, see the HELP topic GET_INFO.

     For a list of string constants you can use for parameter2 when
     parameter1 is a range variable, see the following table.

       Parameter 2       | Return Value (Parameter 1 is a range variable)
     +-------------------+--------------------------------------------------+
       "buffer"          | Buffer   - The buffer in which  the  range
                         |            is located.
       "unmodifiable_    | (1 or 0) - Returns 1 if the specified range contains
        records"         |            one or more unmodifiable records,
                         |            0 otherwise.
       "video"           | Keyword  - Video attribute of the range.
     +-------------------+---------------------------------------------------+