n is either 1 (true) or 0 (false). The default value is 1.
This parameter has been retained for compatibility, but should not be used when building new applications.
When LineRecall is enabled (n = 1), both READ commands and command prompts can use the line recall feature. When not enabled, only command prompts can use line recall.
Changing This Parameter
On the Compatibility page of the Management Portal (System Administration > Configuration > Additional Settings > Compatibility), in the LineRecall row, click Edit. Select LineRecall to enable this setting.
Instead of using the Management Portal, you can change LineRecall in the Config.MiscellanousOpens in a new tab class (as described in the class reference) or by editing the CPF with a text editor.
To change this parameter for a single process only (as opposed to instance-wide), use the LineRecall()Opens in a new tab method of the %SYSTEM.ProcessOpens in a new tab class. See the class reference for details.