QuickDraw 3D Objects

Overview

This chapter describes QuickDraw 3D objects, which occupy the root level of the QuickDraw 3D class hierarchy. It also describes shared objects and the basic functions you can use to manage QuickDraw 3D objects and shared objects and to define custom objects.

You should read this chapter for a basic understanding of the QuickDraw 3D class hierarchy. You should also read this chapter if you want to learn how to define custom objects, such as custom attributes.

This chapter begins by describing the QuickDraw 3D class hierarchy. The section "Using QuickDraw 3D Objects" provides source code examples illustrating how to determine the type of an object and how to define an object metahandler. The section "QuickDraw 3D Objects Reference" describes the most basic routines associated with the QuickDraw 3D class hierarchy. These routines allow you to manage objects and shared objects. The section "Creating Custom Object Subclasses" tells you how you can extend the QuickDraw 3D object hierarchy by creating your own classes and objects.