CPI Communications Transaction Programs

A CPI Communications transaction program is similar to an APPC transaction program; both types of transaction programs use APPC support. Rather than issuing verbs, however, a CPI Communications transaction program invokes each CPI Communications function with a call to the function that passes the appropriate parameters on the call.

Most CPI Communications calls correspond to APPC verbs. For example, the calls that allocate outbound conversations and accept (receive) conversations, and the calls that send and receive data on the conversation, provide functions that are similar to those of the corresponding APPC verbs. The exceptions are the calls that initialize a conversation before allocating the conversation and the calls that set and extract individual conversation characteristics.

Refer to CPI Communications Reference for details about the support that Communications Server provides for CPI Communications programs.