Comments on: How to display more than 1 error message in a message subfile

By: philpl1jb

philpl1jb — Fri, 26 Oct 2012 18:40:39 +0000

Todd
As I understand it. The OP was planning to show a single line message file on an input screen. If the user presses a function key to see more messages the dsplay might show some heading stuff plus the same list of messages but with 15 or so lines of messages per screen page.
Phil

By: ToddN2000

ToddN2000 — Thu, 25 Oct 2012 15:22:41 +0000

Are you looking to have this subfile with errors displayed along with other data?If scrolling through the error messages is a problem, you need to figure out the max number of errors that will show up and make sure display is large enough. Remember it will cut down on any other data on the display. And see if the hastle of scrolling out weights the loss of screen real estate.

By: philpl1jb

philpl1jb — Thu, 25 Oct 2012 01:07:15 +0000

Yes, hopefully someone will step up with a method.

By: TomLiotta

TomLiotta — Wed, 24 Oct 2012 21:05:42 +0000

I was hoping you had methods, and I’d learn. Years ago, I might have created a basic OPM program, compiled for IRP output and checked what happened with message subfile output, just in case it exposed some behavior that could be exploited. Now it’s an “exercise left for the reader”. — Tom

By: philpl1jb

philpl1jb — Wed, 24 Oct 2012 20:29:41 +0000

Just a thought. Didn’t pass the Tom test.

By: TomLiotta

TomLiotta — Wed, 24 Oct 2012 18:54:23 +0000

I would populate both at the same time.

Since these are “message” subfiles, do you have a good method of ‘populating’ them? If the program has two DSPFs open, both with message subfiles, do both subfiles receive message texts? Is a message subfile populated during the running of general program code? Or is it populated at the time an output operation is done?

Tom

By: philpl1jb

philpl1jb — Wed, 24 Oct 2012 18:08:59 +0000

I would populate both at the same time. Then the full screen SFL is ready to use when the funcgtion key is pressed.

By: TomLiotta

TomLiotta — Wed, 24 Oct 2012 06:24:39 +0000

I have a near-full-screen message subfile in one display file, and the example in SFLMSGRCD (Subfile Message Record) keyword in the Information Center shows a 17 line message subfile that begins on line 3 of a display. But that isn't a problem. The problem would be getting messages into the subfile after pressing a F-key. AFAIK, the current subfile will be empty after you press the F-key, and you will need to work out a way to capture all of the messages before you display the first message subfile. Then after the F-key is detected, you'll have to repopulate the program message queue with those captured messages before displaying the second message subfile. But maybe someone has an alternative. It'll be interesting to see if anyone has worked it out before now. Tom