Можливості доступності

Accessibility is the process of ensuring your application can be used by people with various disabilities. Disabilities come in many forms: visual impairments, movement impairments, hearing impairments, cognitive and language impairments, and seizure disorders. Many people have some sort of disability, and making your application accessibility will allow more people to use your application effectively.

GNOME provides support for accessibility devices using the ATK framework. This framework defines a set of interfaces to which graphical interface components adhere. This allows, for instance, screen readers to read the text of an interface and interact with its controls. ATK support is built into GTK+ and the rest of the GNOME platform using the GAIL library, so any application using GTK+ will have reasonable accessibility support for free.

Nonetheless, you should be aware of accessibility issues when when developing your applications. Although GTK+ interfaces provide reasonable accessibility by default, you can often improve how well your program behaves with accessibility tools by providing additional information to ATK. If you develop custom widgets, you should ensure that they expose their properties to ATK. You should also avoid using sound, graphics, or color as the sole means of conveying information to the user.

The GNOME desktop ships with a number of accessibility tools which enable users with disabilities to take full advantage of their desktop and applications. Applications that fully implement ATK will be able to work with the accessibility tools. GNOME's accessibility tools include a screen reader, a screen magnifier, an on-screen keyboard, and Dasher, an innovative predictive text entry tool.

Докладні поради щодо підтримки можливостей доступності на сторінці GNOME Accessibility for Developers. А також ATK - Accessibility Toolkit та Посібнику з бібліотеки GAIL.