DragonFly On-Line Manual Pages

al_set_current_opengl_context(3)              al_set_current_opengl_context(3)

NAME
       al_set_current_opengl_context - Allegro 5 API

SYNOPSIS

              #include <allegro5/allegro_opengl.h>

              void al_set_current_opengl_context(ALLEGRO_DISPLAY *display)

DESCRIPTION
       Make the OpenGL context associated with the given display current for
       the calling thread.  If there is a current target bitmap which belongs
       to a different OpenGL context, the target bitmap will be changed to
       NULL.

       Normally you do not need to use this function, as the context will be
       made current when you call al_set_target_bitmap(3) or
       al_set_target_backbuffer(3).  You might need if it you created an
       OpenGL "forward compatible" context.  Then al_get_backbuffer(3) only
       returns NULL, so it would not work to pass that to
       al_set_target_bitmap(3).

Allegro reference manual                      al_set_current_opengl_context(3)