Use this to discover the length of a field on a formatted screen.
Data String: 2 character field with one of the following values:
[space][space] |
Current Field for POS |
T[space] |
Current field |
P[space] |
Previous field, protected or not |
N[space] |
Next field, protected or not |
NP |
Next protected field |
NU |
Next unprotected field |
PP |
Previous protected field |
PU |
Previous unprotected field |
PS Position: location on the screen to check the field length, can be any position of the field
Returns
Data Length: length of the field unless return code is not WHLLOK
RetCode: WHLLNOFIELD: unformatted PS, WHLLZEROLENFIELD: zero-length field
