
418 9 Chapter 20: Visualization: Views and Windows
Toolbars---one of the most attractive features of the Aqua
interface
Drawers~an "ooh" feature of Aqua that demonstrates that
windows need not be rectangular
Note that controls~buttons, sliders, pop-up menus, and the like~
are dealt with in Chapter 21.
Looking at Views
View
Hierarchies
In the C++ frameworks of MacApp and PowerPlant, views
are a generalized class that descends from an event handler
class. Windows are a specialized type of view.
In Cocoa, views and windows are descendants of a similar
type of object~NSResponder. However, windows and views
are equal descendants of NSResponder: ...