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IUccSubscription Interface

This content is no longer actively maintained. It is provided as is, for anyone who may still be using these technologies, with no warranties or claims of accuracy with regard to the most recent product version or service release.

Encapsulates a subscription.

Namespace: Microsoft.Office.Interop.UccApi
Assembly: Microsoft.Office.Interop.UccApi (in microsoft.office.interop.uccapi.dll)

'Declaration
Public Interface IUccSubscription
	Inherits IUnknown
public interface IUccSubscription extends IUnknown
public interface IUccSubscription extends IUnknown

A subscription is a type with properties describing both what information a local user is interested in and who published the information of interest. The IUccSubscription interface exposes functionality that allows a user to add or remove the names of categories of interest as well as maintain a list of presentities (IUccPresentity) representing publishing users.

A local subscribing user can receive publication updates only for presentities added to a subscription. Further, the local user's subscription must specify which updated categories are refreshed in the client. Calling the Subscribe method on the IUccSubscription interface sends a subscription request to a Unified Communications server. A client application first creates a subscription, then adds category names and presentites of interest, and finally requests the subscription. Publication updates are returned asynchronously in the form of _IUccCategoryContextEvents events.


The following example creates a subscription object, provides a presentity and a list of interested categories. As each interface reference is retrieved through a cast operation, the client advises for interface events. Finally the example creates the subscribe request to an Unified Communications server.

IUccSubscriptionManager subMgr = endpoint as IUccSubscriptionManager;
// Subscribe for "categories" and "containers" by creating a new subscription,
// advise for subscription events, adding self presentity and category names
// to the subscription and calling subscribe
IUccSubscription selfSubscription = subMgr.CreateSubscription(null);

// Create a presentity to represent self and advise for events
UccUri u = _UriManager.ParseUri(this.selfURI);
this.selfPresentity = this.selfSubscription.CreatePresentity(u, null);

//Advise IUccPresentity object of "this" as event handler for raised
//presentity events
UCC_Advise<_IUccPresentityEvents>(this.selfPresentity, this);

//Advise IUccSubscription object of "this" as event handler for raised
//subscription events
UCC_Advise<_IUccSubscriptionEvents>(this.selfSubscription, this);

//add interested publishing user ("self" in this case) to subscription
selfSubscription.AddPresentity(this.selfPresentity);

//add interested categories
selfSubscription.AddCategoryName("categories");
selfSubscription.AddCategoryName("containers");
selfSubscription.AddCategoryName("contacts");
selfSubscription.AddCategoryName("groups");
selfSubscription.AddCategoryName("subscribers");

//make subscription request to server
selfSubscription.Subscribe(null);

Development Platforms

Windows XP Professional with Service Pack 2 (SP2), Windows Server 2000 with Service Pack 4, Windows Server 2003, Windows Vista Ultimate Edition, Windows Vista Business Edition, Windows Vista Enterprise Edition

Target Platforms

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