Re: 5250 Delete key

The Delete key is of course not listed among the aid bytes.

5250 is known as a block mode device. That is to say it only communicates complete blocks of data - not individual keystrokes. Even when it appears to be responding to a single keystroke (say F3) it is still sending a block of data along with it. Think CA vs CF keys.

So keys like Delete, Insert, Shift, etc. are never transmitted - they are simply handled by the device - or these days of course by the emulator.

Keys that require a response from the host such as Enter, Page Up/Down, etc. are the only ones transmitted.


Jon Paris

www.partner400.com
www.SystemiDeveloper.com

On Jul 28, 2019, at 10:53 AM, Buck Calabro <kc2hiz@xxxxxxxxx> wrote:

On Sun, 28 Jul 2019 at 10:36, Jerry Adams <midrange@xxxxxxxx> wrote:

Years ago on a S/34 I had the need to use the PageUp/Down keys. Thanks to help from some friends, I was pointed to the INFDS. There is a code in there that tells the program which key was pressed. Specifics are, perhaps, available in the ILE RPG manual.

Column 369 in the File Information Feedback data structure (INFDS)

https://wiki.midrange.com/index.php/FKey_AID_Bytes
This also points to the canonical RPG and IBM i reference material.

--buck
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