Input Parameters | Significance |
DtvLong idf | field Id |
DtvLong row | row position in the field |
Output Parameters | Significance |
DtvLong *num | integer |
Return Code | Significance |
0 | no error |
-1 | field Id is NULL |
1 | wrong row position |
3 | wrong field type |
You can only apply the function to fields of the types integer, string, and calculate.