Custom Properties, Events, and Control Patterns

The Microsoft UI Automation API specifies a predefined core set of properties, control patterns, and events. However, applications are not limited to using these predefined specifications. The UI Automation extensibility features enable third parties to introduce custom, mutually agreed-upon properties, events, and control patterns to support new UI elements and application scenarios. UI Automation providers and clients can begin using the custom properties, events, and control patterns immediately without requiring the core UI Automation framework to be updated.

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Related topics

UI Automation Properties Overview
UI Automation Events Overview
UI Automation Control Patterns Overview
UI Automation Fundamentals