Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
ALLEGRO_GET_EVENT_TYPE(3)			     ALLEGRO_GET_EVENT_TYPE(3)

NAME
       ALLEGRO_GET_EVENT_TYPE -	Allegro	5 API

SYNOPSIS
	      #include <allegro5/allegro.h>

	      #define ALLEGRO_GET_EVENT_TYPE(a,	b, c, d)   AL_ID(a, b, c, d)

DESCRIPTION
       Make an event type identifier, which is a 32-bit	integer.  Usually, but
       not necessarily,	this will be made from four 8-bit character codes, for
       example:

	      #define MY_EVENT_TYPE   ALLEGRO_GET_EVENT_TYPE('M','I','N','E')

       IDs  less  than 1024 are	reserved for Allegro or	its addons.  Don't use
       anything	lower than ALLEGRO_GET_EVENT_TYPE(0, 0,	4, 0).

       You should try to make your IDs unique so they don't clash with any 3rd
       party  code you may be using.  Be creative.  Numbering from 1024	is not
       creative.

       If you need multiple identifiers, you could define them like this:

	      #define BASE_EVENT   ALLEGRO_GET_EVENT_TYPE('M','I','N','E')
	      #define BARK_EVENT   (BASE_EVENT + 0)
	      #define MEOW_EVENT   (BASE_EVENT + 1)
	      #define SQUAWK_EVENT (BASE_EVENT + 2)

	      /* Alternatively */
	      enum {
		 BARK_EVENT = ALLEGRO_GET_EVENT_TYPE('M','I','N','E'),
		 MEOW_EVENT,
		 SQUAWK_EVENT
	      };

SEE ALSO
       ALLEGRO_EVENT(3), ALLEGRO_USER_EVENT(3),	ALLEGRO_EVENT_TYPE_IS_USER(3)

Allegro	reference manual			     ALLEGRO_GET_EVENT_TYPE(3)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=ALLEGRO_GET_EVENT_TYPE&sektion=3&manpath=FreeBSD+12.2-RELEASE+and+Ports>

home | help