al_set_current_opengl_context(3)al_set_current_opengl_context(3)NAMEal_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_tar‐
get_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 manualal_set_current_opengl_context(3)