Important:
This is retired content. This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.
A version of this page is also available for
4/8/2010

This method registers the class as requiring one or more component categories.

Syntax

HRESULT RegisterClassReqCategories(
  REFCLSID 
rclsid, 
  ULONG 
cCategories, 
  CATID 
rgcatid[]
);

Parameters

rclsid

[in] Class identifier of the relevant class for which category information will be set.

cCategories

[in] Number of category CATIDs to associate as category identifiers for the class.

rgcatid

[in] Array of cCategoriesCATID to associate as category identifiers for the class.

Return Value

If the method succeeds, the return value is S_OK.

If one or more arguments are incorrect, the method returns E_INVALIDARG.

Remarks

In case of an error, this function does not ensure that the Registry is restored to the state prior to the call. This function can only be called by the owner of a class, usually as part of the installation of the component.

To determine whether the platform supports this interface, see Determining Supported COM APIs.

Requirements

Header comcat.h, comcat.idl
Library ole32.lib, uuid.lib
Windows Embedded CE Windows CE 3.0 and later
Windows Mobile Windows Mobile Version 5.0 and later

See Also