IUIAutomationPropertyChangedEventHandler::HandlePropertyChangedEvent method (uiautomationclient.h)

Article
02/22/2024

Handles a Microsoft UI Automation property-changed event.

Syntax

HRESULT HandlePropertyChangedEvent(
  [in] IUIAutomationElement *sender,
  [in] PROPERTYID           propertyId,
  [in] VARIANT              newValue
);

Parameters

[in] sender

Type: IUIAutomationElement*

A pointer to the element that raised the event.

[in] propertyId

Type: PROPERTYID

The identifier of the property whose value has changed. For a list of property IDs, see Property Identifiers.

[in] newValue

Type: VARIANT

The new property value.

Return value

Type: HRESULT

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

This method is implemented by the application to handle events that it has subscribed to by using AddPropertyChangedEventHandler.

Adjusting an event handler from within this method is not supported.

Requirements

Requirement	Value
Minimum supported client	Windows 7, Windows Vista with SP2 and Platform Update for Windows Vista, Windows XP with SP3 and Platform Update for Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 R2, Windows Server 2008 with SP2 and Platform Update for Windows Server 2008, Windows Server 2003 with SP2 and Platform Update for Windows Server 2008 [desktop apps only]
Target Platform	Windows
Header	uiautomationclient.h (include UIAutomation.h)

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