PdfView.DocumentChangedNotification Property
Definition
Important
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Notification constant for DocumentChanged
[Foundation.Advice("Use PdfView.Notifications.ObserveDocumentChanged helper method instead.")]
[Foundation.Field("PDFViewDocumentChangedNotification", "PDFKit")]
public static Foundation.NSString DocumentChangedNotification { get; }[Foundation.Advice("Use PdfView.Notifications.ObserveDocumentChanged helper method instead.")]
[Foundation.Field("PDFViewDocumentChangedNotification", "Quartz")]
public static Foundation.NSString DocumentChangedNotification { get; }member this.DocumentChangedNotification : Foundation.NSStringProperty Value
NSString constant, should be used as a token to NSNotificationCenter.
- Attributes
Remarks
This constant can be used with the NSNotificationCenter to register a listener for this notification, also developers can use the strongly typed notification ObserveDocumentChanged instead. This is an NSString instead of a string, because these values can be used as tokens in some native libraries instead of being used purely for their actual string content. The 'notification' parameter to the callback contains extra information that is specific to the notification type.
// Lambda style
NSNotificationCenter.DefaultCenter.AddObserver (
PdfView.DocumentChangedNotification, (notification) => {Console.WriteLine ("Received the notification PdfView", notification); }
// Method style
void Callback (NSNotification notification)
{
Console.WriteLine ("Received a notification PdfView", notification);
}
void Setup ()
{
NSNotificationCenter.DefaultCenter.AddObserver (PdfView.DocumentChangedNotification, Callback);
}