PdfView.Notifications.ObserveAnnotationHit Method
Definition
Important
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Overloads
| Name | Description |
|---|---|
| ObserveAnnotationHit(EventHandler<PdfViewAnnotationHitEventArgs>) |
Strongly typed notification for the AnnotationHitNotification constant. |
| ObserveAnnotationHit(NSObject, EventHandler<PdfViewAnnotationHitEventArgs>) |
Strongly typed notification for the AnnotationHitNotification constant. |
ObserveAnnotationHit(EventHandler<PdfViewAnnotationHitEventArgs>)
Strongly typed notification for the AnnotationHitNotification constant.
public static Foundation.NSObject ObserveAnnotationHit(EventHandler<PdfKit.PdfViewAnnotationHitEventArgs> handler);static member ObserveAnnotationHit : EventHandler<PdfKit.PdfViewAnnotationHitEventArgs> -> Foundation.NSObjectParameters
The handler that responds to the notification when it occurs.
Returns
Token object that can be used to stop receiving notifications by either disposing it or passing it to RemoveObservers(IEnumerable<NSObject>).
Remarks
This method can be used to subscribe to AnnotationHitNotification notifications.
// Listen to all notifications posted for any object
var token = PdfView.Notifications.ObserveAnnotationHit ((notification) => {
Console.WriteLine ("Observed AnnotationHitNotification!");
};
// Stop listening for notifications
token.Dispose ();
Applies to
ObserveAnnotationHit(NSObject, EventHandler<PdfViewAnnotationHitEventArgs>)
Strongly typed notification for the AnnotationHitNotification constant.
public static Foundation.NSObject ObserveAnnotationHit(Foundation.NSObject objectToObserve, EventHandler<PdfKit.PdfViewAnnotationHitEventArgs> handler);static member ObserveAnnotationHit : Foundation.NSObject * EventHandler<PdfKit.PdfViewAnnotationHitEventArgs> -> Foundation.NSObjectParameters
- objectToObserve
- NSObject
The specific object to observe.
The handler that responds to the notification when it occurs.
Returns
Token object that can be used to stop receiving notifications by either disposing it or passing it to RemoveObservers(IEnumerable<NSObject>).
Remarks
This method can be used to subscribe to AnnotationHitNotification notifications.
// Listen to all notifications posted for a single object
var token = PdfView.Notifications.ObserveAnnotationHit (objectToObserve, (notification) => {
Console.WriteLine ($"Observed AnnotationHitNotification for {nameof (objectToObserve)}!");
};
// Stop listening for notifications
token.Dispose ();