message_hook/3 is supposed to intercept calls to print_message/2, thus making it possible to do something before executing print_message. That is how I understand it. But this did not work with me. I have defined a message_hook for “information” type messages. But the are not intercepted, i.e. if I…

What am I doing wrong with message_hook/3?

EricGT September 12, 2021, 1:06pm 3

While checking if message_hook/3 captured certain events I started the following Wiki article for those with same/similar questions.

HTH

Topic		Replies	Views
Modifying debug/3 by using message_prefix_hook/2 Nice to know	0	203	February 28, 2023
Hooking prolog_help from swipl-win Help! bug	7	635	May 20, 2019
[SOLVED] Surprising behavior when writing some debugging code with prolog_trace_interception Help!	3	491	June 4, 2020
Sharing my debugging message discovery Nice to know	7	760	October 13, 2019
Debug Adapter Protocol (DAP) Request For Comments	27	2503	October 5, 2021