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al_get_opengl_version(3)                              al_get_opengl_version(3)

NAME
       al_get_opengl_version - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro_opengl.h>

              uint32_t al_get_opengl_version(void)

DESCRIPTION
       Returns the OpenGL or OpenGL ES version number of the client (the
       computer the program is running on), for the current display.  "1.0" is
       returned as 0x01000000, "1.2.1" is returned as 0x01020100, and "1.2.2"
       as 0x01020200, etc.

       A valid OpenGL context must exist for this function to work, which
       means you may not call it before al_create_display(3).

SEE ALSO
       al_get_opengl_variant(3)

Allegro reference manual                              al_get_opengl_version(3)