[This is preliminary documentation and subject to change.]
The IClassAccess interface provides methods to access information about applications, components, and services in a class store.
This interface is implemented on the Class Store Manager object and the Class Store Provider object for ADSI/LDAP which are provided by the COM libraries. Only custom Class Store Provider objects must implement this interface.
COM libraries and the Class Store Administration tool (see the Class Store Roadmap, provided on the accompanying SDK CD) use this interface to retrieve information from the class store. In conjunction with ICatInformation, implementers of class store aware components or applications can use this interface to implement a customized user interface for component selection (Insert Object dialog).
| IUnknown Methods | Description |
|---|---|
| QueryInterface | Returns pointers to supported interfaces. |
| AddRef | Increments reference count. |
| Release | Decrements reference count. |
| IClassAccess Methods | Description |
|---|---|
| GetClassInfo | A subset of GetClassSpecInfo, queries the Class Store for implementations of a specific CLSID. Obtains a PACKAGEINFO structure that can be used to download the requested component. |
| GetClassSpecInfo | Performs the same function as GetClassInfo, except that it is used for any CLSID, ProgId, or MIME type. |
Windows NT: Use version 5.0 or later.
Windows: Unsupported.
Windows CE: Unsupported.
Header: Declared in objidl.h.
IClassAdmin, IClassRefresh, IEnumPackage, IEnumClass