IStorage::SetClass

Assigns the specified CLSID to this storage object.

HRESULT SetClass(

REFCLSID clsid

//Class identifier to be assigned to the storage object

);

Parameter

clsid: [in] The class identifier (CLSID) that is to be associated with the storage object.

Return Values

S_OK: The CLSID was successfully assigned.
E_PENDING: Asynchronous Storage only: Part or all of the storage’s data is currently unavailable. For more information see IFillLockBytes and Asynchronous Storage.
STG_E_ACCESSDENIED: The caller does not have sufficient permissions for assigning a class identifier to the storage object.
STG_E_MEDIUMFULL: Not enough space was left on device to complete the operation.
STG_E_REVERTED: The storage object has been invalidated by a revert operation above it in the transaction tree.

Remarks

When first created, a storage object has an associated CLSID of CLSID_NULL. Call this method to assign a CLSID to the storage object.

Call the IStorage::Stat method to retrieve the current CLSID of a storage object.

REFCLSID clsid	//Class identifier to be assigned to the storage object
);