IStorage::MoveElementTo

Copies or moves a substorage or stream from this storage object to another storage object.

HRESULT MoveElementTo(

const wchar_t pwcsName,
//Name of the element to be moved
IStorage * pstgDest,
//Points to destination storage object
LPWSTR pwcsNewName,
//Points to new name of element in destination
DWORD grfFlags
//Specifies a copy or a move
);

Parameters

pwcsName

[in]Specifies the name of the element in this storage object to be moved or copied.

pstgDest

[in]Points to the destination storage object.

pwcsNewName

[in]Points to the new name for the element in its new storage object.

grfFlags

[in]Specifies whether the operation should be a move (STGMOVE_MOVE) or a copy (STGMOVE_COPY). See the STGMOVE enumeration.

Return Values

S_OK

The storage object was successfully copied or moved.

STG_E_ACCESSDENIED

The destination storage object is a child of the source storage object.

STG_E_FILENOTFOUND

The element with the specified name does not exist.

STG_E_FILEALREADYEXISTS

The specified file already exists.

STG_E_INSUFFICIENTMEMORY

The copy or move was not completed due to a lack of memory.

STG_E_INVALIDFLAG

The value for the grfFlags parameter is not valid.

STG_E_INVALIDNAME

Invalid value for pwcsName.

STG_E_INVALIDPOINTER

The pointer specified for the storage object was invalid.

STG_E_INVALIDPARAMETER

One of the parameters was invalid.

STG_E_REVERTED

The object has been invalidated by a revert operation above it in the transaction tree.

STG_E_TOOMANYOPENFILES

The copy or move was not completed because there are too many open files.

Comments

The IStorage::MoveElementTo method is typically the same as invoking the IStorage::CopyTo method on the indicated element and then removing the source element. In this case, the MoveElementTo method uses only the publicly available functions of the destination storage object to carry out the move.

If the source and destination storage objects have special knowledge about each other's implementation (for example, they could be different instances of the same implementation), this operation can be implemented efficiently.

See Also

STGMOVE, IStorage::CopyTo

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