ReceiveStream is a read-only TStream property that represents the stream used for reading from the IOHandler data source when StreamType contains stRead or stReadWrite. 

The stream instance in ReceiveStream is assigned using the argument provided in Create. 

Use SendStream to access the stream used for writing to the IOHandler. 

Use OnGetStream to create and/or update the streams used for the IOHandler. 

ReceiveStream is freed in Close when FreeStreams contains True.