| Input Parameters | Significance |
| DtvLong iwd | widget Id |
| Output Parameters | Significance |
| no | - |
| Return Code | Significance |
| value | Id of the parent widget |
| 0 | eidget is no combination widget |
If ( dal_wdg_ret_fat(iwd) == iwd ) and different from 0, iwd is the widget-Id of the header form; else it is a child-widget.