信息技术 - 与辅助技术（At）的互操作性 - 第4部分:Linux/Unix图形环境辅助功能Api

[中文适用范围]： 本部分的ISO/IEC 13066提供了对Linux/UNIX图形环境访问性API的结构和术语的概述。它将提供以下内容： — API的整体架构和术语的描述； — 关于API内容和使用进一步的入门说明，超越了ISO/IEC 13066-1:2011附录A中所述的内容； — 主要属性的概述，包括 — 用户界面元素， — 如何获取和设置焦点，以及 — API中的通信机制； — 对API设计考虑的讨论（例如与访问性指导相关的外部信息来源指针）； — 扩展API的信息（并指出何时适当）； — 关于API编程接口的介绍（包括与API编程接口相关的外部信息指针）。 [外文原描述]： ISO/IEC TR 13066-4:2015 provides an overview to the structure and terminology of the Linux/UNIX graphical environments accessibility API. It will provide the following: - a description of the overall architecture and terminology of the API; - further introductory explanations regarding the content and use of the API beyond those found in ISO/IEC 13066‑1:2011, Annex A; - an overview of the main properties, including - of user interface elements, - of how to get and set focus, and - of communication mechanisms in the API; - a discussion of design considerations for the API (e.g. pointers to external sources of information on accessibility guidance related to using the API); - information on extending the API (and where this is appropriate); - an introduction to the programming interface of the API (including pointers to external sources of information). It will provide this information as an introduction to the Java API to assist the following: - IT system level developers who create custom controls and/or interface to them; - AT developers involved in programming "hardware to software" and "software to software" interactions.