AutomationPropertyChangedEventHandler Delegate
Represents the method implemented by the UI Automation client application to handle the event raised by a UI Automation provider when a property has changed.
Assembly: UIAutomationTypes (in UIAutomationTypes.dll)
public delegate void AutomationPropertyChangedEventHandler( Object^ sender, AutomationPropertyChangedEventArgs^ e )
Parameters
- sender
- Type: System::Object
The object that raised the event.
- e
- Type: System.Windows.Automation::AutomationPropertyChangedEventArgs
Information about the event.
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.
Depending on the provider implementation, a property-changed event does not necessarily signify that the property value is different; it might just mean that the property was set, even to the same value. If your application needs to respond only to actual changes, it is your responsibility to track the state of the property.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.