Allegro Wrapper Help

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Hello,

I am trying to make a wrapper example of the keyboard example that is found on the Allegro 5 API wiki. I think I have the code right, but it is not working correctly. Anyone help and notice if I'm doing something wrong? 

without warning 
 
include std/machine.e 
include EuAllegro.ew 
 
atom ret = al_install_system(ALLEGRO_VERSION_INT,0) 
 
atom display = 0 
atom event = 0 
atom key = 0 
 
display = al_create_display(800,600) 
 
event = al_create_event_queue() 
 
key = al_install_keyboard() 
 
al_register_event_source(event,al_get_display_event_source(display)) 
 
atom run = 1 
 
al_flip_display() 
 
--program should end when ESC is pressed, but it does not happen 
while run = 1 do 
	al_wait_for_event(event,0) 
	 
	if key = ALLEGRO_KEY_ESCAPE then 
		run = 0 
	end if 
	 
end while

https://wiki.allegro.cc/index.php?title=Basic_Keyboard_Example -The link to the keyboard example

Any help is appericated.

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