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Registering a Connectivity Callback Service (Windows Embedded CE 6.0)

  • Article

1/5/2010

When a client wants to subscribe to a connectivity callback service, the client must implement the interface of interest, and register the callback service.

To register a connectivity callback service

  1. Implement the callback interface on a class object.

  2. Get an ICcService interface from the target service.

  3. Find an IConnectionPointContainer using IUnknown::QueryInterface on the interface returned in step 2.

  4. Call IConnectionPointContainer::FindConnectionPoint with refiid == guid of the callback interface.

  5. Call IConnectionPoint::Advise to pass in the pointer to the IUnknown interface of the class object from step 1.

  6. After receiving all the status notifications, call IConnectionPoint::Unadvise with the cookie value from step 5.

See Also

Concepts

Service Callback Service
Core Connectivity Overview