Barcode scanning

320 pts.
Tags:
Barcode scanners
DDS
DSPF
We develop and use a lot of barcode scanning and reading applications. Some of the portable scanners in the warehouse allow the user to establish a session to the AS400 via a wireless bridge. Once signed on, the user is presented with the scanning application. Due to the fact that their scanners screen is 1/6 of the actual screen (meaning they have scroll bars top and bottom to shift the screen to the area they desire) I tried to modify the application screen to fit in this small area. The scan field is 240 bytes wide which wraps around the screen several times. I tried to use the DDS keyword CNTFLD with a column width of 024, which fits nicely in the 1/6 of the screen without scrolling. The problem is when attmpting to scan, I receive an error message stating that the field is too small to receive the value. If I remove the keyword, it scans fine. Why is this? Is there something I'm missing?
ASKED: July 2, 2008  8:05 PM
UPDATED: November 20, 2009  8:52 PM

Answer Wiki

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According to the DDS manual there may be a few issues.

The field containing CNTFLD keyword must be input-capable / data type A.

It cannot be defined in a subfile.

These keywords cannot be be used on same field:
AUTO (RAB, RAZ)
CHECK(AB, MF, RB, RZ, RLTB)
CHOICE
DSPATR(OID SP)
EDTMSK
The field must have at least 2 spaces separating it from other fields.

Option indicators are not valid.

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