al_get_opengl_program_object(3)                al_get_opengl_program_object(3)

NAME
       al_get_opengl_program_object - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro_opengl.h>

              GLuint al_get_opengl_program_object(ALLEGRO_SHADER *shader)


DESCRIPTION
       Returns the OpenGL program object associated with this shader, if the
       platform is ALLEGRO_SHADER_GLSL.  Otherwise, returns 0.

Allegro reference manual                       al_get_opengl_program_object(3)