display-id

    OpenVMS usage:identifier
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference

    Identifier of the virtual display in which the menu choices are
    displayed. The display-id argument is the address of an unsigned
    longword containing this identifier.

 flags

    OpenVMS usage:mask_longword
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference

    Optional bit mask specifying possible actions to take when
    deleting the menu. The flags argument is the address of an
    unsigned longword that contains the flag. At this time, the only
    valid value is SMG$M_ERASE_MENU. If this option is specified, all
    rows containing menu items are erased.