====== INKEY() ======

Syntax:

	inkey() | inkey!()
	
The ''INKEY()'' function returns the keyboard code of the last pressed key. If no key was pressed, the return value is 0. 

The function can return an integer or a byte.

Example:

	print "press a key"
	loop:
	  let key! = inkey!()
	  if key! = 0 then goto loop
	print "you pressed: ", key!
	
Note that once the keycode was returned by ''INKEY()'', the input is "consumed", i.e. it won't be returned again on a subsequent function call, even if the key remained pressed.