Appendix A. Windows Automation API: Overview

Source: "Windows Automation API SDK" from the Microsoft Developer Network (MSDN) Web site. To view this content online, go to

Windows offers two application programming interface (API) specifications for user interface accessibility and software test automation: Microsoft Active Accessibility, and User Interface Automation (UI Automation). Microsoft Active Accessibility is the legacy API that was introduced in Windows 95 as a platform add-in. UI Automation is a Windows implementation of the User Interface Automation specification.

This section provides a high-level overview of Microsoft Windows Automation API 3.0, which includes the legacy Microsoft ...

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