SNAX/APN Application Programming Manual

Compaq Computer Corporation—420111-001
i
SNAX/APN Application
Programming Manual
Glossary Index Figures Tables
What’s New in This Manual vii
Manual Information
vii
New and Changed Information
vii
About This Manual
ix
Organization of This Manual
x
Your Comments Invited
x
Notation Conventions
xi
1. Introduction to SNAX/APN High-Level APIs
The CRT and ITI Interfaces 1-1
Support of Kanji Devices
1-2
SNA Layers Supported by the Protocols
1-4
Communication Using the Protocols
1-4
Obtaining Device Type, Device Subtype, and Record Size
1-4
Configuration Requirements for CRT and ITI
1-5
Tandem PLU Acquire
1-6
Tandem PLU Accept
1-7
LU-LU Sessions Between Applications and Devices
1-10
2. The CRT Interface
Using the CRT Protocol Directly and Indirectly 2-1
Sending and Receiving 3270 Data Streams
2-2
Outbound Data Stream
2-3
Inbound Data Stream
2-3
The Change Direction Indicator
2-4
Normal CDI Mode
2-5
Enhanced CDI Mode
2-6
Special CDI Mode
2-7