Hook Predicates

foreign/[2,3]

Describes the interface between Prolog and the foreign Routine

foreign_file/2

Describes the foreign functions in ObjectFile to interface to.

message_hook/3

Overrides the call to print_message_lines/3 in print_message/2.

generate_message_hook/3

A way for the user to override the call to 'QU_messages':generate_message/3 in print_message/2.

portray/1

A way for the user to over-ride the default behavior of print/1.

query_hook/6

Provides a method of overriding Prolog's default keyboard based input requests.

runtime_entry/1

This predicate is called upon start-up and exit of stand alone applications.

term_expansion/2

hook called by expand_term/2

unknown_predicate_handler/3

User definable hook to trap calls to unknown predicates

user_help/0

A hook for users to add more information when help/0 is called.