| Input Parameters | Significance |
| DtvLong idf | field Id |
| char mod |
work mode: I = insert mode U = update mode Q = query mode |
| Output Parameters | Significance |
| no | - |
| Return Code | Significance |
| access Id of the field: | |
| 0 | not specified |
| r | read only |
| w | write |
| m | must write |
The mode specific access Id is only active if the general field access Id is set to the value > * < .
The general access Id can be determined with the function dal_mas_set_acc_fld.