1al_get_new_display_adapter(); 2al_set_new_display_adapter(0); 3al_set_new_display_flags(ALLEGRO_WINDOWED); 4display1 = al_create_display(WIDTH, HEIGHT); 5 6 al_get_new_display_adapter(); 7 al_set_new_display_adapter(1); 8 al_set_new_display_flags(ALLEGRO_WINDOWED ); 9 display2 = al_create_display(WIDTH, HEIGHT); 10 11 if(redraw && al_is_event_queue_empty(event_queue)){ 12 13 redraw = false; 14 al_set_new_display_adapter(0); 15 al_set_target_backbuffer(display1); 16 DrawBackGround(BG); 17 al_flip_display(); 18 al_clear_to_color(al_map_rgb(0,0,0)); 19 20 al_set_target_backbuffer(display2); 21 DrawBackGround2(BG2); 22 al_flip_display(); 23 al_clear_to_color(al_map_rgb(0,0,0));

1al_set_new_display_adapter(0); 2al_set_new_display_flags(ALLEGRO_WINDOWED); 3display1 = al_create_display(WIDTH, HEIGHT); 5 6al_set_new_display_adapter(1); 7al_set_new_display_flags(ALLEGRO_WINDOWED); 8display2 = al_create_display(WIDTH, HEIGHT); 10 11if(redraw && al_is_event_queue_empty(event_queue)){ 12 13redraw = false; 14al_set_target_backbuffer(display1); 15DrawBackGround(BG); 16al_flip_display(); 17al_clear_to_color(al_map_rgb(0,0,0)); 18 19al_set_target_backbuffer(display2); 20DrawBackGround2(BG2); 21al_flip_display(); 22al_clear_to_color(al_map_rgb(0,0,0));

1#include <allegro5\allegro.h> 2#include <allegro5\allegro_primitives.h> 3#include <allegro5\allegro_font.h> 4#include <allegro5\allegro_ttf.h> 5#include <allegro5\allegro_image.h> 6#include <allegro5\allegro_audio.h> 7#include <allegro5\allegro_acodec.h> 8//#include <allegro5/allegro_opengl.h> 9//#include "DaulScreen.h" 10 11// Test Header Code 12 13struct BackGround 14{ 15 float x; 16 float y; 17 18 ALLEGRO_BITMAP *image; 19}; 20 21struct BackGround2 22{ 23 float x; 24 float y; 25 26 ALLEGRO_BITMAP *image; 27}; 28 29//........... 30 31//GLOBALS============================== 32const int WIDTH = 1024; 33const int HEIGHT = 768; 34int FPS; 35 36 37ALLEGRO_SAMPLE_INSTANCE *songInstance = NULL; 38ALLEGRO_SAMPLE *music = NULL; 39 40ALLEGRO_BITMAP *BGimage; 41ALLEGRO_BITMAP *BGimage2; 42 43//prototypes functions daul screen test 44 45void InitBG(BackGround &BG, ALLEGRO_BITMAP *image); 46void DrawBackGround(BackGround &BG); 47 48void InitBG2(BackGround2 &BG2, ALLEGRO_BITMAP *image); 49void DrawBackGround2(BackGround2 &BG2); 50 51//=================================== 52void get_desktop_resolution(int adapter, int *w, int *h) 53 { 54 ALLEGRO_MONITOR_INFO info; 55 al_get_monitor_info(adapter, &info); 56 57 *w = info.x2 - info.x1; 58 *h = info.y2 - info.y1; 59 } 60int desktop_width, desktop_height; 61int testtimer=0; //.. 62//===================================== 63 64int main(void) 65{ 66 //primitive variable 67 bool done = false; 68 bool redraw = true; 69 int pos_x; 70 int pos_y; 71 const int FPS = 60; 72 //object variables 73 74 BackGround BG; 75 BackGround2 BG2; 76 77 //Allegro variables 78 ALLEGRO_DISPLAY *display1 = NULL; 79 ALLEGRO_DISPLAY *display2 = NULL; 80 ALLEGRO_EVENT_QUEUE *event_queue = NULL; 81 ALLEGRO_TIMER *timer = NULL; 82 ALLEGRO_FONT *font18 = NULL; 83 //ALLEGRO_DISPLAY_MODE disp_data; 84 85 //Initialization Functions 86 if(!al_init()) //initialize Allegro 87 return -1; 88 89 //int mon=al_get_num_video_adapters(); //returns 2 90 //al_get_display_mode(al_get_num_display_modes() - 1, &disp_data); 91 92 al_get_new_display_adapter(); 93 al_set_new_display_adapter(0); 94 al_set_new_display_flags(ALLEGRO_WINDOWED); 95 display1 = al_create_display(WIDTH, HEIGHT/*disp_data.width, disp_data.height*/); 96 97 al_get_new_display_adapter(); 98 al_set_new_display_adapter(1); 99 al_set_new_display_flags(ALLEGRO_WINDOWED ); 100 display2 = al_create_display(WIDTH, HEIGHT/*disp_data.width, disp_data.height*/); 101 102 103 if(!display1) 104 return -1; 105 if(!display2) 106 return -1; 107 108 // Allegro addon 109 al_init_primitives_addon(); 110 al_install_keyboard(); 111 al_install_mouse(); 112 al_init_font_addon(); 113 al_init_ttf_addon(); 114 al_init_image_addon(); 115 al_install_audio(); 116 al_init_acodec_addon(); 117 118 event_queue = al_create_event_queue(); 119 timer = al_create_timer(1.0 / FPS); 120 121 //load images 122 BGimage = al_load_bitmap("test.png"); 123 BGimage2 = al_load_bitmap("test2.png"); 124 al_convert_mask_to_alpha(BGimage, al_map_rgb(255, 0, 255)); 125 al_convert_mask_to_alpha(BGimage2, al_map_rgb(255, 0, 255)); 126 127 al_reserve_samples(10); 128 129 music= al_load_sample("test.ogg"); 130 131 songInstance = al_create_sample_instance(music); 132 al_set_sample_instance_playmode(songInstance, ALLEGRO_PLAYMODE_LOOP); 133 134 al_attach_sample_instance_to_mixer(songInstance, al_get_default_mixer()); 135 136 srand(time(NULL)); 137 138 InitBG(BG,BGimage); 139 InitBG2(BG2,BGimage2); 140 141 font18 = al_load_font("arial.ttf", 18, 0); 142 143 al_register_event_source(event_queue, al_get_mouse_event_source()); 144 al_register_event_source(event_queue, al_get_keyboard_event_source()); 145 al_register_event_source(event_queue, al_get_timer_event_source(timer)); 146 al_register_event_source(event_queue, al_get_display_event_source(display1)); 147 al_register_event_source(event_queue, al_get_display_event_source(display2)); 148 149 //al_hide_mouse_cursor(display); 150 151 152 al_start_timer(timer); 153 154 while(!done) 155 { 156 157 ALLEGRO_EVENT ev; 158 al_wait_for_event(event_queue, &ev); 159 160 if(ev.type == ALLEGRO_EVENT_TIMER){ 161 162 redraw = true; 163 dis=~dis; 164 } 165 166 else if(ev.type == ALLEGRO_EVENT_DISPLAY_CLOSE){ 167 168 done = true; 169 } 170 171 else if(ev.type == ALLEGRO_EVENT_KEY_DOWN){ 172 173 switch(ev.keyboard.keycode){ 174 175 case ALLEGRO_KEY_ESCAPE: done = true; 176 break; 177 } 178 } 179 180 else if(ev.type == ALLEGRO_EVENT_KEY_UP){ 181 182 switch(ev.keyboard.keycode){ 183 184 case ALLEGRO_KEY_ESCAPE:done = true; 185 break; 186 187 } 188 } 189 190 if(ev.type==ALLEGRO_EVENT_MOUSE_AXES){ 191 192 pos_x= ev.mouse.x; 193 pos_y= ev.mouse.y; 194 } 195 196 197 if(redraw && al_is_event_queue_empty(event_queue)){ 198 199 redraw = false; 200 al_set_target_backbuffer(display1); 201 DrawBackGround(BG); 202 al_draw_textf(font18, al_map_rgb(255, 0, 255), 200, 60, 0, "SCREEN 1 %i ", testtimer); 203 204 al_flip_display(); 205 al_clear_to_color(al_map_rgb(0,0,0)); 206 207 al_set_target_backbuffer(display2); 208 DrawBackGround2(BG2); 209 al_draw_textf(font18, al_map_rgb(255, 0, 255),200, 100, 0, "SCREEEN 2 %i ", testtimer); 210 al_flip_display(); 211 al_clear_to_color(al_map_rgb(0,0,0)); 212 213 testtimer++; 214 215 } 216 } 217 218 219 al_destroy_sample(music); 220 al_destroy_sample_instance(songInstance); 221 al_destroy_bitmap(BGimage); 222 al_destroy_bitmap(BGimage2); 223 al_destroy_event_queue(event_queue); 224 al_destroy_timer(timer); 225 al_destroy_font(font18); 226 al_destroy_display(display1); //destroy our display object 227 al_destroy_display(display2); 228 return 0; 229} 230 231//================Monitor 1======== 232void InitBG(BackGround &BG, ALLEGRO_BITMAP *image = NULL) 233{ 234 235 BG.x = 0; 236 BG.y = 0; 237 238 if(image != NULL) 239 BG.image = image; 240} 241void DrawBackGround(BackGround &BG) 242{ 243 244 al_draw_bitmap(BG.image, BG.x, BG.y, 0); 245 246} 247 248//============== Monitor 2 ======== 249 250void InitBG2(BackGround2 &BG2, ALLEGRO_BITMAP *image = NULL) 251{ 252 253 BG2.x = 0; 254 BG2.y = 0; 255 256 if(image != NULL) 257 BG2.image = image; 258} 259 260void DrawBackGround2(BackGround2 &BG2) 261{ 262 263 al_draw_bitmap(BG2.image, BG2.x, BG2.y, 0); 264 265}