| Input Parameters | Significance |
| no | - |
| Output Parameters | Significance |
| no | - |
| Return Code | Significance |
| current work mode: | |
| 'I' | insert mode |
| 'U' | update mode |
| 'Q' | query mode |
| 'V' | view mode |
| 0 | no mask active |
Only use this function if a mask is active and the event Loop is in mask edit state.
Use this function to determine the current work mode in field triggers.