display-id

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

    Specifies the virtual display whose current virtual cursor
    position you are requesting. The display-id argument is the
    address of an unsigned longword that contains the display
    identifier.

    The display identifier is returned by SMG$CREATE_VIRTUAL_DISPLAY.

 start-row

    OpenVMS usage:longword_signed
    type:         longword (signed)
    access:       write only
    mechanism:    by reference

    Receives the virtual cursor's current row position within the
    specified virtual display. The start-row argument is the address
    of a signed longword into which is written the current row
    position.

 start-column

    OpenVMS usage:longword_signed
    type:         longword (signed)
    access:       write only
    mechanism:    by reference

    Receives the virtual cursor's current column position within
    the specified virtual display. The start-column argument is the
    address of a signed longword into which is written the current
    column position.