Chapter 8 - Tag Objects
This chapter describes tag objects and the functions you can use to manipulate them. Tag objects encapsulate application-defined information that can provide information about or modify the behavior of the QuickDraw GX objects associated with those tag objects.Read this chapter if you need to create or modify tag objects. Other chapters in this book describe the functions you use to add tag objects to or delete tag objects from specific other kinds of QuickDraw GX objects, such as shapes or styles.
Before reading this chapter, you should be familiar with the information in the chapter "Introduction to QuickDraw GX" in this book.
This chapter introduces QuickDraw GX tag objects and describes their properties. It then shows how to use the QuickDraw GX tag-manipulation functions to
- create and manipulate tag objects
- manipulate tag object properties
- directly manipulate tag contents
Chapter Contents
- About Tag Objects
- Tag Object Properties
- Tag Types
- Uses for Tag Objects
- Using Tag Objects
- Creating and Manipulating Tag Objects
- Creating and Deleting a Tag Object
- Copying, Comparing, and Cloning Tag Objects
- Loading and Unloading Tag Objects
- Manipulating Tag Object Properties
- Getting and Setting a Tag Object's Tag Type and Contents
- Manipulating a Tag Object's Owner Count
- Directly Manipulating Tag Object Contents
- Attaching Tags to a QuickDraw GX Object
- Tag Objects Reference
- Constants and Data Types
- The Tag Object
- Functions
- Creating and Manipulating Tag Objects
- Manipulating Tag Object Properties
- Directly Manipulating the Data in a Tag Object
- Summary of Tag Objects
- C Summary
- Functions
- Creating and Manipulating Tag Objects
- Manipulating Tag Object Properties
- Directly Manipulating the Data in a Tag Object