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Accessibility and the Carbon Framework

The Mac OS X accessibility architecture defines the model that applications follow to make themselves accessible to assistive applications and technologies. The model is not tied to any one application framework, so each framework is free to implement accessibility support in the most natural and efficient way.

This chapter describes how the Carbon framework implements accessibility for Carbon applications in Mac OS X. If your application uses only standard HIObject objects and subclasses to implement its user interface, you should skim this chapter for background information before you read “Making a Standard Carbon Application Accessible.”

If you implement some custom subclasses of HIObject or if your application is based on a custom application framework (such as PowerPlant), you should read this chapter to enhance your understanding of the Carbon accessibility implementation. Then, you should read “Making a Semistandard Carbon Application Accessible” or “Making a Custom Carbon Application Accessible” to learn how to access-enable your application.

If you’re unfamiliar with the Mac OS X accessibility model or you’re unsure why your application should be accessible, read Accessibility Overview for an introduction to accessibility in Mac OS X.

Contents:

Accessibility Objects in Carbon
Accessibility Carbon Events
Accessibility Notifications
Key Modifiers and VoiceOver

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