VMS Help LBR Routines, LBR$SEARCH, Description  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Use LBR$SEARCH to find index keys that point to the same module
    header. Generally, in index number 1 (the module name table),
    just one key points to any particular module; thus, you would
    probably use this routine only to search library indexes where
    more than one key points to a module. For example, you might
    call LBR$SEARCH to find all the global symbols associated with an
    object module in an object library.

    If LBR$SEARCH finds an index key associated with the specified
    RFA, it calls a user-supplied routine with two arguments:

    o  The key argument, which is the address of either of the
       following:

       -  A string descriptor for the key name (libraries with ASCII
          key names)

       -  An unsigned longword for the key value (libraries with
          binary keys)

    o  The RFA argument, which is the address of a 2-longword array
       containing the RFA of the module header

    The routine must return a value to indicate success or failure.
    If the specified routine returns a false value (low bit = 0),
    then the index search terminates.

    Note that the key found by LBR$SEARCH is valid only during the
    call to the user-supplied routine. If you want to use the key
    later, you must copy it.