Display file strangeness

I have a display file that defines a subfile in a window. The display size is *DS4.

I wanted to add the ability to display this same window on a *DS3 screen. The sindow is 11x45, and in the upper left hand corner of the screen so it should fit.

When I add *DS3 as a secondary size, I get CPD7817 - Value on SFLPAG too large for display size. But it should fit fine SFLPAG is 10, and SFLLIN is 3 (makes two columns of 5 rows).

In fact when I look at it in RDi, the window and subfile fits with columns and rows to spare on all sides for both *DS3 and *DS4 display sizes.

If I replace *DS4 with *DS3, there is no error on compile.

So to recap:
1) display file compiles fine with DSPSIZ(*DS4)
2) display file compiles fine with DSPSIZ(*DS3) - and no other changes
3) I get CPD7817 if I use DSPSIZ(*DS4 *DS3) or DSPSIZ(*DS3 *DS4)

Well, as I was writing this, I discovered that if you are using SFLLIN with multiple display sizes, you have to specify it twice, once for each display size. Even if it is the same. So to fix my issue, I had to add:

*DS3 SFLLIN(3)
*DS4 SFLLIN(3)

Apparently this is the only keyword that functions this way. So I thought I might share this little gotcha with the group.

Mark Murphy
STAR BASE Consulting, Inc.
mmurphy@xxxxxxxxxxxxxxx