편집

다음을 통해 공유


PdfDocument.DidBeginPageWriteNotification Property

Definition

Notification constant for DidBeginPageWrite

[Foundation.Advice("Use PdfDocument.Notifications.ObserveDidBeginPageWrite helper method instead.")]
[Foundation.Field("PDFDocumentDidBeginPageWriteNotification", "PDFKit")]
public static Foundation.NSString DidBeginPageWriteNotification { get; }
[Foundation.Advice("Use PdfDocument.Notifications.ObserveDidBeginPageWrite helper method instead.")]
[Foundation.Field("PDFDocumentDidBeginPageWriteNotification", "Quartz")]
public static Foundation.NSString DidBeginPageWriteNotification { get; }
member this.DidBeginPageWriteNotification : Foundation.NSString

Property 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 ObserveDidBeginPageWrite 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 (
        PdfDocument.DidBeginPageWriteNotification, (notification) => {Console.WriteLine ("Received the notification PdfDocument", notification); }


// Method style
void Callback (NSNotification notification)
{
    Console.WriteLine ("Received a notification PdfDocument", notification);
}

void Setup ()
{
    NSNotificationCenter.DefaultCenter.AddObserver (PdfDocument.DidBeginPageWriteNotification, Callback);
}

Applies to