It looks like I was wrong. The QsnRtvMod API does work to detect the
screen size from the calling program.

Thanks guys!

On Thu, Aug 28, 2025 at 8:22 AM Charles Wilt <charles.wilt@xxxxxxxxx> wrote:

Yes the code Mark linked to shows the check being called from the popup
window.

TLDR;
The key to making our popup window display in the correct mode requires the
following steps:


1. The (popup) display file should be user open (UsrOpn on the F spec)
so that we can set the size mode before the file is opened
2. Detect the current screen mode size by using the Screen_SizeIs27x132
functio
3. Set the display mode size of our popup window program to the current
mode
4. Open the display file
5. Display the popup screen

Ignore what's being done in the test driver.

The QsnRtvMod API mentioned by another poster won't work, it simply tells
you if a display supports 27x132.
I've used that to display a message asking the user to call the help desk
to get their session reconfigured as I had a new application that only
worked on 27x132.

HTH,
Charles




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