Comments on: How to restrict “Enter key’ on the AS/400 display file. http://itknowledgeexchange.techtarget.com/itanswers/how-to-restrict-enter-key-on-the-display-file/ Sat, 28 Nov 2009 05:18:43 +0000 http://wordpress.org/?v=2.6.2 By: Splat http://itknowledgeexchange.techtarget.com/itanswers/how-to-restrict-enter-key-on-the-display-file/#comment-65079 Splat Fri, 03 Jul 2009 14:39:04 +0000 #comment-65079 Another option would be to use the attention indicator byte (pos. 369 - 369 (character) in the workstation INFDS) to determine the function key pressed. [B]Enter[/B] is defined as [I]x'F1'[/I] - look for that and disallow any processing. This would let you keep other function keys on the screen active. You can even check for [B]Auto-Enter[/B], [I]x'3F'[/I] I like the attention indicator byte - I haven't bothered attaching an indicator to a function key in ages. I just compare the field defined on the INFDS to pre-defined constants. You can find the definitions of the returned values [A href="http://publib.boulder.ibm.com/infocenter/iseries/v5r4/index.jsp?topic=/dm/rbal3getat.htm"]here[/A]. Another option would be to use the attention indicator byte (pos. 369 - 369 (character) in the workstation INFDS) to determine the function key pressed. Enter is defined as x’F1′ - look for that and disallow any processing. This would let you keep other function keys on the screen active. You can even check for Auto-Enter, x’3F’

I like the attention indicator byte - I haven’t bothered attaching an indicator to a function key in ages. I just compare the field defined on the INFDS to pre-defined constants. You can find the definitions of the returned values here.

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