ICatInformation::EnumClassesOfCategories (Windows CE 5.0)
This method returns an enumerator over the classes that implement one or more of the rgcatidImpl parameter.
If a class requires a category not listed in the rgcatidReq parameter, it is not included in the enumeration.
HRESULT EnumClassesOfCategories(ULONGcImplemented,CATIDrgcatidImpl,ULONGcRequired,CATIDrgcatidReq,IEnumCLSID** ppenumCLSID);
Parameters
cImplemented
[in] Number of category identifiers in the rgcatidImpl array.This value cannot be zero.
If this value is ((ULONG) -1), classes are included in the enumeration, regardless of the categories they implement.
rgcatidImpl
[in] Array of category identifiers.cRequired
[in] Number of category identifiers in the rgcatidReq array.This value can be zero.
If this value is ((ULONG) -1), classes are included in the enumeration, regardless of the categories they require.
rgcatidReq
[in] Array of category identifiers.ppenumCLSID
[out] The location in which to return an IEnumCLSID interface that can be used to enumerate the CLSIDs of the classes that implement category rcatid.
Return Values
The following table shows the return values for this method.
| Value | Description |
|---|---|
| S_OK | The function was successful. |
| E_INVALIDARG | One or more arguments are incorrect. |
| E_OUTOFMEMORY | Insufficient memory to create and return an enumerator object. |
Remarks
To determine whether the platform supports this interface, see Determining Supported COM APIs.
Requirements
OS Versions: Windows CE 3.0 and later.
Header: Comcat.h, Comcat.idl.
Link Library: Ole32.lib, Uuid.lib.
See Also
ICatInformation::EnumCategories | ICatInformation::EnumImplCategoriesOfClass | ICatInformation::EnumReqCategoriesOfClass | ICatInformation::GetCategoryDesc | ICatInformation::IsClassOfCategories
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