|
|
|
NCL lets you write procedures that interact with a display area either synchronously or asynchronously. If you operate in synchronous mode, when a screen panel is issued the procedure is suspended until input is received from the device or until a timeout (as specified by INWAIT) expires.
This mode of operation suits applications where direct interaction with an operator is expected. The INWAIT function also allows interval-based dynamic updating of screen displays.
Synchronous mode operation does not suit applications which require dynamic updating of screen displays as events occur, or circumstances in which screen displays might have to be updated without necessarily involving any operator input.
To solve these requirements there is a mode of panel operation called asynchronous operation.
| Copyright © 2011 CA. All rights reserved. | Tell Technical Publications how we can improve this information |