Allegro 5 api
#include <allegro5/allegro_primitives.h> void al_draw_filled_rectangle(float x1, float y1, float x2, float y2, ALLEGRO_COLOR color)
Draws a filled rectangle.
Parameters:
x1, y1, x2, y2 - Upper left and lower right points of the rectangle
color - Color of the rectangle
al_draw_rectangle(3alleg5), al_draw_filled_rounded_rectangle(3alleg5)