Personal Communications Response
If Personal Communications can perform the Set Presentation Space Service
Condition function, then Personal Communications returns an ACK message:
WM_DDE_ACK(wStatus, aEPSCOND)If Personal Communications cannot perform the Set Presentation Space Service Condition function, then Personal Communications returns a negative ACK message containing the following return codes in the low-order byte of wStatus:
| Return Code | Explanation |
|---|---|
| 1 | PS position is not valid. |
| 2 | Length is not valid. |
| 3 | The value of EOF flag is not valid. |
| 4 | The value of Search Direction is not valid. |
| 6 | The specified format is not valid. |
| 9 | A system error occurred. |