...
Required Configuration
Available only if NET_CFG_TRANSPORT_LAYER_SEL is configured for TCP (see section D-12-1if TCP is enabled (see TCP Layer Configuration).
Notes / Warnings
The conn_id_tcp argument represents the TCP connection handle – not the socket handle. The following code may be used to get the TCP connection handle and configure TCP connection parameters (see also section C-13-38 “NetSock_GetConnTransportID()”):
...