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.
public delegate void AutomationFocusChangedEventHandler(
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 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Supported in: 3.5, 3.0
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