Personal Communications Response
Personal Communications receives the Start Session Advise and returns an ACK message if
it can start the advise. Otherwise, a negative ACK message is returned to
the client with one of the following return codes in the low-order byte of
the wStatus field:
WM_DDE_ACK(wStatus, aItem)| Return Code | Explanation |
|---|---|
| 1 | Advise already active for data item. |
| 6 | Advise parameter not valid. |
| 9 | A system error occurred. |
Once the advise has started, the client receives DATA messages notifying
it that the data item (PS, OIA, or TRIMRECT) has changed:
WM_DDE_DATA(hData, aItem)The DATA messages continue until a Stop Session Advise message is sent to Personal Communications. The format of the data item is the same as if the client requested the data item via a DDE_REQUEST.