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IWMDMEnumStorage::Clone

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The Clone method creates another enumerator with the same enumeration state as the current enumerator.

Syntax

HRESULT Clone(
  IWMDMEnumStorage**  ppEnumStorage
);

Parameters

ppEnumStorage

[out]  On return, this holds a pointer to the IWMDMEnumStorage interface of the cloned enumerator.

Return Values

The method returns an HRESULT. All the interface methods in Windows Media Device Manager and service provider can return any of the following classes of error codes:

  • Standard COM error codes
  • Windows error codes converted to HRESULT values
  • Windows Media Device Manager error codes

For a complete list of possible error codes, see Error Codes.

Possible values include, but are not limited to, those in the following table.

Return code Description
S_OK The method succeeded.
E_INVALIDARG The parameter is invalid.
E_OUTOFMEMORY There is not enough memory to replicate this interface.

Remarks

Using this function, a client can record a particular point in the enumeration sequence and return to that point later. The new enumerator supports the same interface as the original enumerator.

Requirements

Header: Defined in wmdm.idl.

Library: mssachlp.lib

See Also