Allegro 5 api
#include <allegro5/allegro_opengl.h> GLuint al_get_opengl_texture(ALLEGRO_BITMAP *bitmap)
Returns the OpenGL texture id internally used by the given bitmap if it uses one, else 0.
Example:
bitmap = al_load_bitmap("my_texture.png"); texture = al_get_opengl_texture(bitmap); if (texture != 0) glBindTexture(GL_TEXTURE_2D, texture);