Controls
are onscreen objects that the user can manipulate to take an immediate action
or change settings to modify a future action. You can use the Control Manager
to create, display, and manage the drawing and behavior of controls.
Adopting
the Aqua Interface (Preliminary) [PDF]
This document
describes how, in the process of creating a Cocoa application or revising
your Mac OS 8 and 9 application for Carbon, you can take full advantage
of Aqua in Mac OS X.