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IUIAutomationActiveTextPositionChangedEventHandler::HandleActiveTextPositionChangedEvent method (uiautomationclient.h)

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Handles a Microsoft UI Automation active text position change event.

Note  This method is implemented by the application to handle events that it has subscribed to by calling AddActiveTextPositionChangedEventHandler.

 

Syntax

HRESULT HandleActiveTextPositionChangedEvent(
  [in] IUIAutomationElement   *sender,
       IUIAutomationTextRange *range
);

Parameters

[in] sender

A pointer to the UI Automation element that raised the event.

range

A span of continuous text in a container that supports the IUIAutomationTextPattern interface.

Return value

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

Remarks

Before implementing an event handler, you should be familiar with the threading issues described in Understanding Threading Issues.

Requirements

Requirement Value
Minimum supported client Windows 10, version 1809 [desktop apps only]
Minimum supported server Windows Server, version 1709 [desktop apps only]
Target Platform Windows
Header uiautomationclient.h (include UIAutomation.h)
DLL UIAutomationCore.dll

See also

IUIAutomationActiveTextPositionChangedEventHandler