Return Code
| Code | Description |
|---|---|
| WHLLOK | Keystroke intercept has been initiated. |
| WHLLNOTCONNECTED | The Host session presentation space is invalid. |
| WHLLPARAMETERERROR | One or more parameters are invalid. |
| WHLLPSBUSY | Session is busy. |
| WHLLSYSERROR | Function failed due to a system error. |
| WHLLCANCEL | Asynchronous function was cancelled. |