| Input Parameter | Significance |
| DtvLong idf | Field ID |
| char mlf |
Multilanguage flag: 0 = field is not multilingual 1 = field is multilingual |
| Output Parameter | Significance |
| none | - |
| Return Code | Significance |
| 0 | OK |
The flag marks a field as multilingual. It is set automatically if a language list exists for the field.
The function automatically invoke any set mask listener function.