1#include <allegro5/allegro.h> 2#include <allegro5/allegro_font.h> 3#include <allegro5/allegro_ttf.h> 4#include <stdio.h> 5 6int main(int argc, char **argv) { 7 ALLEGRO_DISPLAY *display = NULL; 8 ALLEGRO_EVENT_QUEUE *event_queue = NULL; 9 ALLEGRO_FONT *myfont = NULL; 10 al_init(); 11 12 al_init_font_addon(); 13 al_init_ttf_addon(); 14 al_install_keyboard(); 15 16 display = al_create_display(640, 480); 17 myfont = al_load_ttf_font("pirulen.ttf", 72, 0); 18 event_queue = al_create_event_queue(); 19 al_register_event_source(event_queue, al_get_display_event_source(display)); 20 al_register_event_source(event_queue, al_get_keyboard_event_source()); 21 al_clear_to_color(al_map_rgb(255, 255, 255)); 22 al_flip_display(); 23 while (1) 24 { 25 ALLEGRO_EVENT ev; 26 ALLEGRO_TIMEOUT timeout; 27 al_init_timeout(&timeout, 0.06); 28 29 bool get_event = al_wait_for_event_until(event_queue, &ev, &timeout); 30 31 if (get_event && ev.type == ALLEGRO_EVENT_DISPLAY_CLOSE) { 32 break; 33 } 34 else if (get_event && ev.type == ALLEGRO_EVENT_KEY_DOWN) { 35 int code = ev.keyboard.keycode; 36 al_draw_text(myfont, al_map_rgb(0, 0, 0), 320, 240, ALLEGRO_ALIGN_CENTRE, "Button pressed!"); 37 } 38 39 al_clear_to_color(al_map_rgb(255, 255, 255)); 40 al_flip_display(); 41 } 42 al_destroy_display(display); 43 al_destroy_event_queue(event_queue); 44 return 0; 45}