| Parameters | Description |
|---|---|
| Data String | One-character short name session ID of the presentation space. |
| Data Length | Must be specified. |
| PS Position | NA |
| Code | Description |
|---|---|
| WHLLOK | A close intercept event did not occur. |
| WHLLNOTCONNECTED | An invalid presentation space was specified, or was not connected for window services. |
| WHLLPARAMETERERROR | An invalid option was specified. |
| WHLLNOTAVAILABLE | Start Close Intercept has not been called prior to this function for the specified presentation space. |
| WHLLSYSERROR | The function failed due to a system error. |
| WHLLPSENDED | The session stopped. |