int = SubStreamFailure(Item, StreamName
, Error
)
Notifies user of failure on a substream, and queries how to
proceed
Parameters
Item : PyIShellItem
The item whose stream couldn't be createdStreamName : str
Name of the failed streamError : int
HRESULT failure code from operationReturn Value
Returns COPYENGINE_S_* if operation is to continue, or COPYENGINE_E_* HRESULT if cancelled