Allegro bitmap slide thingy

// Allegro turotial.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <allegro5\allegro.h>
#include <allegro5\allegro_image.h>
int main()
{
	al_init();
	ALLEGRO_DISPLAY * display = al_create_display(640, 480);
	ALLEGRO_EVENT_QUEUE * queue;
	ALLEGRO_TIMER * timer;
	ALLEGRO_BITMAP * bitmap = NULL;


	queue = al_create_event_queue();
	timer = al_create_timer(1.0 / 60);
	al_install_keyboard();
	al_register_event_source(queue, al_get_keyboard_event_source());
	al_register_event_source(queue, al_get_display_event_source(display));
	al_register_event_source(queue, al_get_timer_event_source(timer));

	al_init_image_addon();
	//haken kruis "as.jpg"
	bitmap = al_load_bitmap("haje.jpg");

	assert(bitmap != NULL);
	float x = 0;
	bool running = true;
	int width = al_get_display_width(display);

	al_start_timer(timer);
	while (running) {
		ALLEGRO_EVENT event;
		al_wait_for_event(queue, &event);
		if (event.type == ALLEGRO_EVENT_KEY_UP || event.type == ALLEGRO_EVENT_DISPLAY_CLOSE)
			running = false;
		if (event.type == ALLEGRO_EVENT_TIMER) {
			//rode kleur voor hakenkruis: 221,0,0
			al_clear_to_color(al_map_rgb(30, 20, 20));
			al_draw_bitmap(bitmap, x += 2, 0, 0);
			al_flip_display();
		}
		if (x > width)
		{
			x = -al_get_bitmap_width(bitmap);
		}
	}
	al_destroy_timer(timer);
	al_destroy_display(display);
	al_uninstall_keyboard();
	al_destroy_bitmap(bitmap);
	return 0;
}