MKMapView.VisibleMapRect Property
Important
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The map rectangle that is currently visible.
public virtual MapKit.MKMapRect VisibleMapRect { [Foundation.Export("visibleMapRect")] get; [Foundation.Export("setVisibleMapRect:")] set; }member this.VisibleMapRect : MapKit.MKMapRect with get, set- Attributes
The visible portion of the map that is displayed can also be set using the Region property.