Using and Implementing IUnknown

COM provides a rich set of standards for implementing and using objects and for inter-object communication. The topics in this section describe basic information relating to implementing objects. For information about how clients and servers interact, see COM Clients and Servers. For more information about threading models and their implementation and use, see Processes, Threads, and Apartments.

For details on using and implementing IUnknown, see the following topics:

• QueryInterface: Navigating in an Object
• Rules for Implementing QueryInterface
• Managing Object Lifetimes Through Reference Counting