GET_INFO(PROCESS_VARIABLE)

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

     The following string can be used for parameter2 when parameter1 is a
     process variable:

       Parameter 2       | Return Value (Parameter 1 is a process variable)
      -------------------+------------------------------------------------+
      "pid"              | Integer    - Process identification number
      "buffer"           | Buffer     - The buffer associated with the
                         |              process
      -------------------+------------------------------------------------+