The RESPOND statement is used to enable a program to issue a positive or negative response to an offer for subfile dialog establishment or a request for orderly termination. Networks that support this function can be found in the I/O Subsystem Programming Guide. The program is notified of requests for dialog establishment or termination through the CHANGEEVENT and FILESTATE attributes.
<respond statement>
── RESPOND ── ( ──<respond file part>── , ──<respond options>── ) ─────┤
<respond file part>
──<file designator>─┬──────────────────────────────────┬───────────────┤
└─ [SUBFILE ──<subfile index>── ] ─┘<respond options>
──<respondtype option>─┬──────────────────────────────┬────────────────┤
└─ , ──<associateddata option>─┘<respondtype option>
── RESPONDTYPE ── = ─┬─ ACCEPTOPEN ──┬─────────────────────────────────┤
├─ REJECTOPEN ──┤
└─ ACCEPTCLOSE ─┘The RESPOND statement can be used only when the KIND of the file designator is PORT and only when the SERVICE file attribute is set to a network type that supports this feature.

