al_get_opengl_extension_list(3)al_get_opengl_extension_list(3)NAMEal_get_opengl_extension_list - Allegro 5 API
SYNOPSIS
#include <allegro5/allegro_opengl.h>
ALLEGRO_OGL_EXT_LIST *al_get_opengl_extension_list(void)DESCRIPTION
Returns the list of OpenGL extensions supported by Allegro, for the
given display.
Allegro will keep information about all extensions it knows about in a
structure returned by al_get_opengl_extension_list.
For example:
if (al_get_opengl_extension_list()->ALLEGRO_GL_ARB_multitexture) {
use it
}
The extension will be set to true if available for the given display
and false otherwise. This means to use the definitions and functions
from an OpenGL extension, all you need to do is to check for it as
above at run time, after acquiring the OpenGL display from Allegro.
Under Windows, this will also work with WGL extensions, and under Unix
with GLX extensions.
In case you want to manually check for extensions and load function
pointers yourself (say, in case the Allegro developers did not include
it yet), you can use the al_have_opengl_extension(3) and
al_get_opengl_proc_address(3) functions instead.
Allegro reference manualal_get_opengl_extension_list(3)
