LegacyIAccessible Control Pattern
Describes guidelines and conventions for using ILegacyIAccessibleProvider, including information about properties, methods, and events. The LegacyIAccessible control pattern is supported by the Microsoft Active Accessibility to Microsoft UI Automation Proxy.
Application and control providers never implement the ILegacyIAccessibleProvider interface.
The LegacyIAccessible control pattern exposes the IUIAutomationLegacyIAccessiblePattern interface to UI Automation clients, enabling them to access the underlying IAccessible implementation for certain UI elements. However, IUIAutomationLegacyIAccessiblePattern does not support methods that are obsolete or that are redundant with the UI Automation features.
This topic contains the following sections:
- Implementation Guidelines and Conventions
- Members of the LegacyIAccessible Control Pattern
- Related topics
Implementation Guidelines and Conventions
No application or control implements ILegacyIAccessibleProvider. The UI Automation framework automatically supplies the provider implementation for a native Microsoft Active Accessibility server.
The LegacyIAccessible control pattern is not available for controls based on UI Automation.
Members of the LegacyIAccessible Control Pattern
The following properties, methods, and events are members of the LegacyIAccessible control pattern. The notes are for UI Automation clients.
| Members | Member type | Notes |
|---|---|---|
| ChildId | Property | Returns CHILDID_SELF (0) for a non-child object. |
| DefaultAction | Property | None |
| Description | Property | None |
| Help | Property | None |
| KeyboardShortcut | Property | None |
| Name | Property | None |
| Role | Property | Use the GetRoleText function to retrieve localized string. |
| GetSelection | Method | Retrieves an IUIAutomationElementArray interface pointer. |
| State | Property | Use the GetStateText function to retrieve localized string. |
| Value | Property | None |
| DoDefaultAction | Method | None |
| GetIAccessible | Method | None |
| Select | Method | The selection flag is a Microsoft Active AccessibilitySELFLAG value. For more information, see SELFLAG Constants. |
| SetValue | Method | None |
This control pattern has no associated events.
Related topics