ContactChangeTracker Class

Definition

Namespace:

Windows.ApplicationModel.Contacts

Provides functionality for monitoring changes to Contact objects in the ContactStore.

public ref class ContactChangeTracker sealed

/// [Windows.Foundation.Metadata.ContractVersion(Windows.Foundation.UniversalApiContract, 65536)]
/// [Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
/// [Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
class ContactChangeTracker final

[Windows.Foundation.Metadata.ContractVersion(typeof(Windows.Foundation.UniversalApiContract), 65536)]
[Windows.Foundation.Metadata.MarshalingBehavior(Windows.Foundation.Metadata.MarshalingType.Agile)]
[Windows.Foundation.Metadata.Threading(Windows.Foundation.Metadata.ThreadingModel.Both)]
public sealed class ContactChangeTracker

Public NotInheritable Class ContactChangeTracker

Inheritance

Object Platform::Object IInspectable ContactChangeTracker

Attributes

ContractVersionAttribute MarshalingBehaviorAttribute ThreadingAttribute

Windows requirements

Device family	Windows 10 (introduced in 10.0.10240.0)
API contract	Windows.Foundation.UniversalApiContract (introduced in v1.0)
App capabilities	contactsSystem

Remarks

Use ContactStore.ChangeTracker or ContactList.ChangeTracker to get an instance of this class.

Version history

Windows version	SDK version	Value added
1709	16299	IsTracking

Properties

IsTracking

Gets a Boolean value that indicates whether change tracking is active.

Methods

Enable()	Call this method to enable change tracking.
GetChangeReader()	Gets a ContactChangeReader that can be used to process changes.
Reset()	Call this method to reset the change tracker if your app receives ContactChangeType.ChangeTrackingLost.