ICatRegister::UnRegisterClassReqCategories method (comcat.h)
Removes one or more required category identifiers from a class.
Syntax
HRESULT UnRegisterClassReqCategories(
[in] REFCLSID rclsid,
[in] ULONG cCategories,
[in] CATID [] rgcatid
);
Parameters
[in] rclsid
The class identifier.
[in] cCategories
The number of category CATIDs to be removed.
[in] rgcatid
An array of CATIDs that are to be removed. Only the category IDs specified in this array are removed.
Return value
This method can return the following values.
Return code | Description |
---|---|
|
The method completed successfully. |
|
One or more arguments are incorrect. |
Remarks
In case of an error, this method does not ensure that the registry is restored to the state prior to the call. This method will be successful even if one or more of the category IDs specified are not registered for the class.
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows 2000 Professional [desktop apps only] |
Minimum supported server | Windows 2000 Server [desktop apps only] |
Target Platform | Windows |
Header | comcat.h |