PdfViewerControl.AnnotationLostFocus Event
Occurs when an annotation loses input focus.
Namespace: DevExpress.Xpf.PdfViewer
Assembly: DevExpress.Xpf.PdfViewer.v20.2.dll
NuGet Packages: DevExpress.WindowsDesktop.Wpf.PdfViewer, DevExpress.Wpf.PdfViewer
Declaration
Event Data
The AnnotationLostFocus event's data class is PdfAnnotationLostFocusEventArgs. The following properties provide information specific to this event:
| Property | Description |
|---|---|
| Annotation | Gets the annotation that got focus. |
| Handled | Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. Inherited from RoutedEventArgs. |
| OriginalSource | Gets the original reporting source as determined by pure hit testing, before any possible Source adjustment by a parent class. Inherited from RoutedEventArgs. |
| RoutedEvent | Gets or sets the RoutedEvent associated with this RoutedEventArgs instance. Inherited from RoutedEventArgs. |
| Source | Gets or sets a reference to the object that raised the event. Inherited from RoutedEventArgs. |
The event data class exposes the following methods:
| Method | Description |
|---|---|
| InvokeEventHandler(Delegate, Object) | When overridden in a derived class, provides a way to invoke event handlers in a type-specific way, which can increase efficiency over the base implementation. Inherited from RoutedEventArgs. |
| OnSetSource(Object) | When overridden in a derived class, provides a notification callback entry point whenever the value of the Source property of an instance changes. Inherited from RoutedEventArgs. |
Remarks
When a markup annotation receives focus, the PdfViewer.AnnotationGotFocus event is raised.
The PdfAnnotationGotFocusEventArgs.Annotation property gets the target annotation. Use the DevExpress.Pdf.PdfViewerAnnotationExtensions class methods to obtain a specific type of annotation.