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IOleContainer::EnumObjects method

Enumerates the objects in the current container.

Syntax


HRESULT EnumObjects(
  [in]   DWORD grfFlags,
  [out]  IEnumUnknown **ppenum
);

Parameters

grfFlags [in]

Specifies which objects in a container are to be enumerated, as defined in the enumeration OLECONTF.

ppenum [out]

A pointer to an IEnumUnknown pointer variable that receives the interface pointer to the enumerator object. Each time a container receives a successful call to EnumObjects, it must increase the reference count on the ppenum pointer the method returns. It is the caller's responsibility to call IUnknown::Release when it is done with the pointer. If an error is returned, the implementation must set ppenum to NULL.

Return value

This method returns S_OK on success. Other possible return values include the following.

Return codeDescription
E_FAIL

The operation failed.

E_NOTIMPL

Object enumeration not supported.

 

Remarks

A container should implement EnumObjects to enable programmatic clients to find out what objects it holds. This method, however, is not called in standard linking scenarios.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

OleIdl.h

IDL

OleIdl.Idl

IID

IID_IOleContainer is defined as 0000011b-0000-0000-C000-000000000046

See also

IOleContainer
IEnumUnknown
IOleItemContainer
OLECONTF

 

 

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