Pathway/iTS TCP and Terminal Programming Guide

Contents
Compaq NonStop™ Pathway/iTS TCP and Terminal Programming Guide—426751-001
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7. Processing Unsolicited Messages
7. Processing Unsolicited Messages
Detecting the Arrival of Unsolicited Messages 7-2
Accepting Unsolicited Messages
7-2
Replying to Unsolicited Messages
7-2
The PW-TCP-SYSTEM-NAME and PW-TCP-PROCESS-NAME Special
Registers 7-3
The PW-USE-NEW-CURSOR Special Register
7-3
Unsolicited-Message TERMINATION-STATUS Values
7-4
Pathway/iTS Error Codes
7-5
UMP Programming Examples
7-6
Polling the PW-UNSOLICITED-MESSAGE-QUEUED Register
7-6
Using Waited RECEIVE UNSOLICITED Statements
7-7
Using ESCAPE ON UNSOLICITED MESSAGE Clauses
7-8
ESCAPE ON UNSOLICITED MESSAGE Design Considerations
7-9
Message Processing Requiring No Terminal Interaction
7-11
Message Processing Requiring Only Terminal Output
7-12
Message Processing Requiring Both Input and Output
7-13
Sending Unsolicited Messages to SCREEN COBOL Requesters
7-14
Unsolicited-Message Layout, Reply Layout, and Error Codes
7-15
Unsolicited-Message Layout
7-15
Unsolicited-Message Reply Layout
7-17
Unsolicited-Message Error Codes
7-19
UMP Configuration Parameters
7-20
8. Processing Double-Byte Character Sets
Device Types 8-1
Determination of the Character Set
8-2
Data-Item Considerations
8-2
Mixed Data Items
8-2
Subscripting Considerations
8-3
Developing SCREEN COBOL Programs for Double-Byte Character Sets
8-4
Environment Division
8-4
Data Division
8-6
Procedure Division
8-13