AutomationPropertyChangedEventHandler Delegate
.NET Framework (current version)
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.
.NET Framework
Available since 3.0
Available since 3.0
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