Informs OLE that a class object, previously registered with the CoRegisterClassObject
function, is no longer available for use.
| DWORD dwRegister
||//Token on class object returned from call to CoRegisterClassObject
Specifies the token previously returned from the CoRegisterClassObject
Indicates the class object was successfully revoked.
Out of memory.
Indicates the dwRegister
parameter does not map to a registered class object.
Indicates an unexpected error occurred.
If a call to CoRevokeClassObject
is successful, it means that the class object has been removed from the
global class object table. However, if other clients still have pointers to the
class object and have caused the reference count to be incremented by calls to IUnknown::AddRef
, the reference count will not be zero. When this occurs, applications may
benefit if subsequent calls (with the obvious exceptions of IUnknown::AddRef
) to the class object fail.
The object application must
to revoke registered class objects before exiting the program. Class object
implementors should call CoRevokeClassObject
as part of the release sequence. You must specifically revoke the class
object even when you have specified the flags
value REGCLS_SINGLEUSE in a call to CoRegisterClassObject
, indicating that only one application can connect to the class object.
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