unknwn.h header
This header is used by Component Object Model (COM). For more information, see:
unknwn.h contains the following programming interfaces:
Interfaces
| IClassFactory The IClassFactory interface enables a class of objects to be created. |
| IUnknown Enables clients to get pointers to other interfaces on a given object through the QueryInterface method, and manage the existence of the object through the AddRef and Release methods. |
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