SYNOPSIS
  int show (object ob, string can, void|string cant)
  int show (object ob, string * can)

DESCRIPTION
 Display a visual to the given object.

 Arguments
   ob   : the object to display to.
   can  : the string to display if the object can see
          or an array of what should be ({ can, cant }).
   cant : the string to display if the object can't see

 Result:
   < 0: the object can't see because of darkness.
   = 0: the object can see.
   > 0: the object can't see because of bright.

 This is the counterpart to write().

SEE ALSO
   see(sefu), show(sefun), show_room(sefun), light(C), messages(C)
