Code Fail

#include <allegro.h>
#include <string>
#define ScreenWidth 1025
#define ScreenHeight 555

volatile long timer = 0;
void Increment(){timer++;}
END_OF_FUNCTION(Increment);

volatile bool closeWindow = false;
void CloseButtonCallback(){closeWindow = true;}
END_OF_FUNCTION(CloseButtonCallBack);


int main(void)
{
    allegro_init();                                                                                 //Allegro initialise funtions
    install_keyboard();
    install_mouse();
    install_timer();
    install_sound(DIGI_AUTODETECT, MIDI_AUTODETECT, "A");
    set_color_depth(32);
    set_gfx_mode(GFX_AUTODETECT_WINDOWED, 1025, 555, 0, 0);
    set_window_title("Game");
    clear_to_color(screen, makecol(255,0,255));

    LOCK_FUNCTION(Increment);
    LOCK_VARIABLE(timer);
    LOCK_FUNCTION(closeButtonCallBack);
    LOCK_VARIABLE(closeWindow);

    install_int_ex(Increment, BPS_TO_TIMER(100));
    set_close_button_callback(CloseButtonCallback);

	int Position[2] = {ScreenWidth/2, ScreenHeight/2};
	int moveSpeed = 5;

	std::string Word = "lol";



	// BITMAP *Buffer = create_bitmap (ScreenWidth, ScreenHeight);


	  while(!closeWindow){

		  while(timer > 0){

            if(key[KEY_ESC])
                closeWindow = true;

			  textout_centre_ex(screen, font, Word.c_str(), Position[0], Position[1], 255, -1);
			//  blit(Buffer, screen, 0, 0, 0, 0, ScreenWidth, ScreenHeight);
			  rest(20);
			 clear_bitmap(screen);
		  }
		  timer--;
	  }
	//  destroy_bitmap(Buffer);
	  allegro_exit();
	  return 0;

	  }
END_OF_MAIN()