Synchronous and asynchronous events, such as Read Timeout
events, and terminal connections to CICS® 3270
screens.
Accessing fields on CICS 3270 screens
When a terminal connection to CICS has
been established, the Terminal, Screen and Field objects are used
to navigate through the screens presented by the CICS server
application, reading and updating screen data as required.
Synchronization and sessions
The Terminal class supports both synchronous and asynchronous sends
to the CICS Server.
In the case of an asynchronous send, the Screen object is updated while information
is being received from the server.
ATIs and Read Timeouts
ATI events and Read Timeout events are asynchronous and can occur at any
time during the execution of an application, providing ATIs are enabled and
a Read Timeout value was specified when creating an extended terminal.