The Perform a DEFINE/KEY Command routine performs the DEFINE/KEY
    command you provide.

    Format

      SMG$DEFINE_KEY  key-table-id ,command-string

1  –  Returns

    OpenVMS usage:cond_value
    type:         longword (unsigned)
    access:       write only
    mechanism:    by value

2  –  Arguments

 key-table-id

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

    Identifies the key definition table for which the DEFINE/KEY
    command is to be performed. The key-table-id argument is the
    address of an unsigned longword that contains the key table
    identifier.

    The key table identifier is returned by SMG$CREATE_KEY_TABLE.

 command-string

    OpenVMS usage:char_string
    type:         character string
    access:       read only
    mechanism:    by descriptor

    String containing the DEFINE/KEY command to be performed. The
    command-string argument is the address of a descriptor pointing
    to the command to be performed.

    The valid qualifiers for the DEFINE/KEY command are as follows:

    o  /TERMINATE

    o  /NOECHO

    o  /LOCK

    o  /IF_STATE

    o  /SET_STATE

    The following two restrictions apply to the DEFINE/KEY
    qualifiers:

    o  If you use the /LOCK qualifier, you must also use the /SET_
       STATE qualifier.

    o  If you use both the /SET_STATE and /TERMINATE qualifiers, you
       may not use /LOCK.