/******************************************************************
* WDML_HandleAdviseReply
*
* handles the reply to an advise request
*/
static WDML_QUEUE_STATE WDML_HandleAdviseReply(WDML_CONV* pConv, MSG* msg, WDML_XACT* pXAct, DWORD *ack)
{
DDEACK ddeAck;
UINT_PTR uiLo, uiHi;
HSZ hsz;
if (msg->message != WM_DDE_ACK || WIN_GetFullHandle((HWND)msg->wParam) != pConv->hwndServer)
{
return WDML_QS_PASS;
}
UnpackDDElParam(WM_DDE_ACK, msg->lParam, &uiLo, &uiHi);
hsz = WDML_MakeHszFromAtom(pConv->instance, uiHi);
if (DdeCmpStringHandles(hsz, pXAct->hszItem) != 0)
return WDML_QS_PASS;
GlobalDeleteAtom(uiHi);
FreeDDElParam(WM_DDE_ACK, msg->lParam);
if (ack) *ack = uiLo;
WDML_ExtractAck(uiLo, &ddeAck);
if (ddeAck.fAck)
{
WDML_LINK* pLink;
/* billx: first to see if the link is already created. */
pLink = WDML_FindLink(pConv->instance, (HCONV)pConv, WDML_CLIENT_SIDE,
pXAct->hszItem, TRUE, pXAct->wFmt);
if (pLink != NULL)
{
/* we found a link, and only need to modify it in case it changes */
pLink->transactionType = pXAct->wType;
}
else
{
WDML_AddLink(pConv->instance, (HCONV)pConv, WDML_CLIENT_SIDE,
pXAct->wType, pXAct->hszItem, pXAct->wFmt);
}
pXAct->hDdeData = (HDDEDATA)1;
}
else
{
TRACE("Returning FALSE on XTYP_ADVSTART - fAck was FALSE\n");
GlobalFree(pXAct->hMem);
pXAct->hDdeData = NULL;
}
return WDML_QS_HANDLED;
}
/******************************************************************
* WDML_ServerHandleAdvise
*
*
*/
static WDML_QUEUE_STATE WDML_ServerHandleAdvise(WDML_CONV* pConv, WDML_XACT* pXAct)
{
UINT uType;
WDML_LINK* pLink;
DDEADVISE* pDdeAdvise;
HDDEDATA hDdeData;
BOOL fAck;
pDdeAdvise = (DDEADVISE*)GlobalLock(pXAct->hMem);
uType = XTYP_ADVSTART |
(pDdeAdvise->fDeferUpd ? XTYPF_NODATA : 0) |
(pDdeAdvise->fAckReq ? XTYPF_ACKREQ : 0);
if (!(pConv->instance->CBFflags & CBF_FAIL_ADVISES))
{
hDdeData = WDML_InvokeCallback(pConv->instance, XTYP_ADVSTART, pDdeAdvise->cfFormat,
(HCONV)pConv, pConv->hszTopic, pXAct->hszItem, 0, 0, 0);
}
else
{
hDdeData = 0;
}
if ((UINT)hDdeData)
{
fAck = TRUE;
/* billx: first to see if the link is already created. */
pLink = WDML_FindLink(pConv->instance, (HCONV)pConv, WDML_SERVER_SIDE,
pXAct->hszItem, TRUE, pDdeAdvise->cfFormat);
if (pLink != NULL)
{
/* we found a link, and only need to modify it in case it changes */
pLink->transactionType = uType;
}
else
{
TRACE("Adding Link with hConv=0x%lx\n", (DWORD)pConv);
WDML_AddLink(pConv->instance, (HCONV)pConv, WDML_SERVER_SIDE,
uType, pXAct->hszItem, pDdeAdvise->cfFormat);
}
}
else
{
TRACE("No data returned from the Callback\n");
fAck = FALSE;
}
GlobalUnlock(pXAct->hMem);
if (fAck)
{
GlobalFree(pXAct->hMem);
}
pXAct->hMem = 0;
WDML_PostAck(pConv, WDML_SERVER_SIDE, 0, FALSE, fAck, pXAct->atom, pXAct->lParam, WM_DDE_ADVISE);
WDML_DecHSZ(pConv->instance, pXAct->hszItem);
return WDML_QS_HANDLED;
}