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Inside Macintosh: Networking With Open Transport / Part 2 - Open Transport Reference: Chapter 22 - Endpoints Reference / Functions

Functions for Connection-Oriented Transaction-Based Endpoints
After you establish a connection, you can transfer data using connection-oriented transaction-based endpoints by calling the OTSndRequest function to send a request, the OTRcvRequest function to read a request, the OTSndReply function to reply to the request, and the OTRcvReply function to read the reply. This section also describes the OTCancelRequest function, which you use to cancel an outgoing request, and the OTCancelReply function, which you use to cancel an incoming request. Connection-oriented transaction-based service used by protocols such as ASP is described at greater length in the section "Using Connection-Oriented Transaction-Based Service".

SEE ALSO
Table 4-4.