| Input Parameters | Significance |
| DtvLong idf | field Id |
| DtvLong row | row position in the field |
| DtvLong log | boolean value |
| DtvLong drt | field-dirty-flag |
| Output Parameters | Significance |
| no | - |
| Return Code | Significance |
| 0 | no error |
| -1 | field Id is NULL |
| 1 | wrong row position |
| 2 | text string is zero pointer |
| 3 | wrong field type |
You can write boolean values only in fields of the type boolean.
In > drt < you can specify, how the function is to treat the field-dirty-flag:
When you enter log = 0, DataView sets the toggle to > OFF < (displayed as > n < ), when you enter any other value for log, the toggle is set to > ON < (displayed as > y < ).