[Allegro 5] Wyświetlanie bitmap

#include <allegro5/allegro.h>
#include <allegro5/allegro_image.h>
int main()
{
    al_init();
    al_install_keyboard();
    al_init_image_addon();
    ALLEGRO_KEYBOARD_STATE klawiatura;
    ALLEGRO_DISPLAY * okno = al_create_display( 400, 300 );
    al_set_window_title( okno, "Bitmapy" );
    ALLEGRO_BITMAP * obrazek1 = al_load_bitmap( "ludek1.png" );
    ALLEGRO_BITMAP * obrazek2 = al_load_bitmap( "ludek2.png" );
    while( !al_key_down( & klawiatura, ALLEGRO_KEY_ESCAPE ) )
    {
        al_get_keyboard_state( & klawiatura );
        al_clear_to_color( al_map_rgb( 127, 127, 127 ) );
        al_draw_bitmap( obrazek1, 0, 0, 0 );
        al_draw_bitmap( obrazek2, 100, 100, 0 );
        al_flip_display();
    }
    al_destroy_bitmap( obrazek1 );
    al_destroy_bitmap( obrazek2 );
    al_destroy_display( okno );
    return 0;
}