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al_regist...ce_handler(3)  Library Functions Manual  al_regist...ce_handler(3)

NAME
       al_register_trace_handler - Allegro 5 API

SYNOPSIS
	      #include <allegro5/allegro.h>

	      void al_register_trace_handler(void (*handler)(char const	*))

DESCRIPTION
       Register	 a  callback which is called whenever Allegro writes something
       to its log files.  The default logging to allegro.log is	disabled while
       this callback is	active.	 Pass NULL to revert to	the default logging.

       This function may be called prior to al_install_system.

       See the example allegro5.cfg for	documentation on how to	configure  the
       used debug channels, logging levels and trace format.

SINCE
       5.1.5

Allegro	reference manual			     al_regist...ce_handler(3)

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<https://man.freebsd.org/cgi/man.cgi?query=al_register_trace_handler&sektion=3&manpath=FreeBSD+Ports+15.0>

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