VMS Help  —  LBR Routines, LBR$GET_HISTORY, Arguments
 library_index

    OpenVMS usage:longword_unsigned
    type:         longword (unsigned)
    access:       read only
    mechanism:    by reference
    Library control index returned by the LBR$INI_CONTROL routine.
    The library_index argument is the address of the longword that
    contains the index.

 action_routine

    OpenVMS usage:procedure
    type:         procedure value
    access:       modify
    mechanism:    by reference
    User-supplied routine for processing library update history
    records. The action_routine argument is the address of the
    procedure value of this user-supplied routine. The routine is
    invoked once for each update history record in the library.
    One argument is passed to the routine, namely, the address of
    a descriptor pointing to a history record.
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