Note that the inside of a window wob is thus never visible, since it is entirely covered by the bars and the client window. Bar The only extensible wob, it has a width and an extensible length. Horizontal bars contains vertical bars and vertical bars contains horizontal bars. The simplest of all wobs, its contents is just a graphic which is displayed in their X window. It acts thus like some kind of button.
Current graphics are text and pixmaps.
This means that the load of memory management is evenly distributed on all phases of computing, thus avoiding the dreadful garbage collection pauses. But, since reference count memory management doesn't work with circular lists, no WOOL function allows the user to do physical replacements on lists 4 . We do not really need the generality of the chained cells model, since we do not want to have circular lists. In classical lisp dialects, you can give a variable and a function the same name without conflict. In WOOL , an atom can only have one value.