This is preliminary documentation and subject to change.
This topic documents a feature of the Windows Media Device Manager SDK. We recommend that you migrate your application to use the Windows Portable Devices API. For more information, see the Windows Portable Devices SDK.
The Clone method creates another enumerator that contains the same enumeration state as the current one.
HRESULT Clone( IMDSPEnumStorage** ppEnumStorage );
[out] Pointer to an IMDSPEnumStorage interface.
The method returns an HRESULT. All the interface methods in Windows Media Device Manager 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 an extenstive list of possible error codes, see Error Codes.
Possible values include, but are not limited to, those in the following table.
|S_OK||The method succeeded.|
|E_INVALIDARG||The ppEnumStorage parameter is an invalid or NULL pointer.|
|E_OUTOFMEMORY||There is not enough memory to replicate this interface.|
|E_UNEXPECTED||The interface was not retrieved from a valid origin.|
Using this function, a client can record a particular point in the enumeration sequence, and return to that point at a later time. The new enumerator supports the same interface as the original one.
This method must be implemented. It must not return WMDM_E_NOTSUPPORTED or E_NOTIMPL. For more information, see Mandatory and Optional Interfaces.
Header: Defined in mswmdm.h.