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AutomationFocusChangedEventHandler Delegate

Represents the method implemented by the UI Automation client application to handle the event raised by a UI Automation provider when the focus has changed.

Namespace: System.Windows.Automation
Assembly: UIAutomationClient (in uiautomationclient.dll)

public delegate void AutomationFocusChangedEventHandler (
	Object sender,
	AutomationFocusChangedEventArgs e
)
/** @delegate */
public delegate void AutomationFocusChangedEventHandler (
	Object sender, 
	AutomationFocusChangedEventArgs e
)
Not applicable.

Parameters

sender

The object that raised the event.

e

Information about the event.

Use an AutomationFocusChangedEventHandler delegate to define the method that is called by a client to handle UI Automation focus-changed events.

The AutomationElement represented by sender might not have any cached properties or patterns, depending on whether the application subscribed to this event while a CacheRequest was active.

The following example implements a delegate to handle focus-changed events.

private void OnFocusChanged(object src, AutomationFocusChangedEventArgs e)
{
    AutomationElement elementFocused = src as AutomationElement;
    // TODO: Do something in response to the focus change.
}

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0
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