terminal-type

    OpenVMS usage:byte_signed
    type:         byte (signed)
    access:       read only
    mechanism:    by reference

    The device type of the terminal, as designated by an OpenVMS
    symbolic terminal type or by another value returned by the
    $GETDVI system service. The terminal-type argument is the address
    of a signed byte that contains the terminal type.

 termtable-address

    OpenVMS usage:address
    type:         longword (unsigned)
    access:       write only
    mechanism:    by reference

    Address of the entry for a particular type of terminal in
    TERMTABLE.EXE. The termtable-address argument is the address
    of an unsigned longword into which is written the address of a
    terminal entry.

    Use this address when calling the SMG$GET_TERM_DATA procedure for
    the specified type of terminal.

 terminal-name

    OpenVMS usage:device_name
    type:         character string
    access:       write only
    mechanism:    by descriptor

    A string into which is written the terminal name associated with
    the device type. The terminal-name argument is the address of a
    descriptor pointing to the string into which the terminal name is
    written.