ECI return notification

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ECI notifications are returned to the user of the ECIRequest object.

Table 1. CICS_ExternalCall return codes — environment-dependent extensions
Return code Meaning
ECI_ERR_NULL_WIN_HANDLE An asynchronous call was specified with the window handle set to 0.
ECI_ERR_NULL_MESSAGE_ID An asynchronous call was specified with the message identifier set to 0.
ECI_ERR_NULL_SEM_HANDLE A null semaphore handle was passed when a valid handle was required.