Allegro 5 oversized window and mouse

#include <allegro5/allegro.h>
#include <allegro5/allegro_font.h>
#include <assert.h>
#include <stdio.h>

int main (int argc, char * argv [])
{
    int const MAX_X = 2500;
    int const MAX_Y = 1500;
    int result = al_init ();
    assert (result != 0);
    ALLEGRO_DISPLAY * display = al_create_display (MAX_X, MAX_Y);
    assert (display != NULL);
    int w = al_get_display_width (display);
    int h = al_get_display_height (display);
    ALLEGRO_EVENT_QUEUE * queue = al_create_event_queue ();
    assert (queue != NULL);
    al_install_mouse ();
    al_init_font_addon ();
    al_register_event_source (queue, al_get_mouse_event_source ());
    bool exit = false;
    int x = 0;
    int y = 0;
    while (!exit)
    {
        ALLEGRO_EVENT event;
        while (al_get_next_event (queue, &event))
        {
            if (event.type == ALLEGRO_EVENT_MOUSE_AXES)
            {
                x = event.mouse.x;
                y = event.mouse.y;
                printf ("w = %d, h = %d, ", w, h);
                printf ("x = %d, y = %d\n", x, y);
            }
            else if (event.type == ALLEGRO_EVENT_MOUSE_BUTTON_DOWN)
            {
                exit = true;
            }
        }

        al_clear_to_color (al_map_rgb_f (0.0, 0.0, 0.0));
        al_draw_pixel (MAX_X / 2, MAX_Y / 2, al_map_rgb_f (0.5, 0.5, 0.5));
        al_draw_pixel (x, y, al_map_rgb_f (1.0, 1.0, 1.0));
        al_flip_display ();
    }
    return 0;
}