/******************************************************************
* WDML_HandleRequestReply
*
*
*/
static WDML_QUEUE_STATE WDML_HandleRequestReply(WDML_CONV* pConv, MSG* msg, WDML_XACT* pXAct, DWORD *ack)
{
DDEACK ddeAck;
WINE_DDEHEAD wdh;
UINT_PTR uiLo, uiHi;
HSZ hsz;
if (WIN_GetFullHandle((HWND)msg->wParam) != pConv->hwndServer)
return WDML_QS_PASS;
switch (msg->message)
{
case WM_DDE_ACK:
UnpackDDElParam(WM_DDE_ACK, msg->lParam, &uiLo, &uiHi);
FreeDDElParam(WM_DDE_ACK, msg->lParam);
GlobalDeleteAtom(uiHi);
if (ack) *ack = uiLo;
WDML_ExtractAck(uiLo, &ddeAck);
pXAct->hDdeData = 0;
if (ddeAck.fAck)
ERR("Positive answer should appear in NACK for a request, assuming negative\n");
TRACE("Negative answer...\n");
break;
case WM_DDE_DATA:
UnpackDDElParam(WM_DDE_DATA, msg->lParam, &uiLo, &uiHi);
TRACE("Got the result (%08lx)\n", uiLo);
hsz = WDML_MakeHszFromAtom(pConv->instance, uiHi);
if (DdeCmpStringHandles(hsz, pXAct->hszItem) != 0)
return WDML_QS_PASS;
pXAct->hDdeData = WDML_Global2DataHandle((HGLOBAL)uiLo, &wdh);
if (wdh.fRelease)
{
GlobalFree((HGLOBAL)uiLo);
}
if (wdh.fAckReq)
{
pConv->instance->lastError = DMLERR_MEMORY_ERROR;
}
else
{
GlobalDeleteAtom(uiHi);
FreeDDElParam(WM_DDE_ACK, msg->lParam);
}
break;
default:
FreeDDElParam(msg->message, msg->lParam);
return WDML_QS_PASS;
}
return WDML_QS_HANDLED;
}
int IsEqualString (HSZ hsz,LPSTR lp)
{
HSZ h;
int ret;
h=DdeCreateStringHandle(ddeInstId,lp,CP_WINANSI);
ret=(DdeCmpStringHandles(hsz,h)==0);
DdeFreeStringHandle(ddeInstId,h);
return ret;
}
/******************************************************************
* 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;
}
/* Dde callback, save the execute or request string for processing */
static HDDEDATA CALLBACK ddeCb(UINT uType, UINT uFmt, HCONV hConv,
HSZ hsz1, HSZ hsz2, HDDEDATA hData,
ULONG_PTR dwData1, ULONG_PTR dwData2)
{
DWORD size = 0, ret = 0;
WINE_TRACE("dde_cb: %04x, %04x, %p, %p, %p, %p, %08lx, %08lx\n",
uType, uFmt, hConv, hsz1, hsz2, hData, dwData1, dwData2);
switch (uType)
{
case XTYP_CONNECT:
if (!DdeCmpStringHandles(hsz1, hszTopic))
return (HDDEDATA)TRUE;
return (HDDEDATA)FALSE;
case XTYP_EXECUTE:
if (!(size = DdeGetData(hData, NULL, 0, 0)))
WINE_ERR("DdeGetData returned zero size of execute string\n");
else if (!(ddeString = HeapAlloc(GetProcessHeap(), 0, size)))
WINE_ERR("Out of memory\n");
else if (DdeGetData(hData, (LPBYTE)ddeString, size, 0) != size)
WINE_WARN("DdeGetData did not return %d bytes\n", size);
DdeFreeDataHandle(hData);
return (HDDEDATA)DDE_FACK;
case XTYP_REQUEST:
ret = -3; /* error */
if (!(size = DdeQueryStringW(ddeInst, hsz2, NULL, 0, CP_WINUNICODE)))
WINE_ERR("DdeQueryString returned zero size of request string\n");
else if (!(ddeString = HeapAlloc(GetProcessHeap(), 0, (size + 1) * sizeof(WCHAR))))
WINE_ERR("Out of memory\n");
else if (DdeQueryStringW(ddeInst, hsz2, ddeString, size + 1, CP_WINUNICODE) != size)
WINE_WARN("DdeQueryString did not return %d characters\n", size);
else
ret = -2; /* acknowledgment */
return DdeCreateDataHandle(ddeInst, (LPBYTE)&ret, sizeof(ret), 0,
hszReturn, CF_TEXT, 0);
default:
return NULL;
}
}
/******************************************************************
* WDML_HandleUnadviseReply
*
*
*/
static WDML_QUEUE_STATE WDML_HandleUnadviseReply(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;
FreeDDElParam(WM_DDE_ACK, msg->lParam);
GlobalDeleteAtom(uiHi);
if (ack) *ack = uiLo;
WDML_ExtractAck(uiLo, &ddeAck);
TRACE("WM_DDE_ACK received while waiting for a timeout\n");
if (!ddeAck.fAck)
{
TRACE("Returning FALSE on XTYP_ADVSTOP - fAck was FALSE\n");
pXAct->hDdeData = NULL;
}
else
{
/* billx: remove the link */
WDML_RemoveLink(pConv->instance, (HCONV)pConv, WDML_CLIENT_SIDE,
pXAct->hszItem, pXAct->wFmt);
pXAct->hDdeData = (HDDEDATA)1;
}
return WDML_QS_HANDLED;
}
/*****************************************************************
* DdeCmpStringHandles (DDEML.36)
*/
INT16 WINAPI DdeCmpStringHandles16(HSZ hsz1, HSZ hsz2)
{
return DdeCmpStringHandles(hsz1, hsz2);
}
BOOL IsTopic (HSZ sz)
{
BOOL ret;
ret=(DdeCmpStringHandles(sz,hService)==0) || (DdeCmpStringHandles(sz,hTopic)==0);
return ret;
}
/******************************************************************************
* DdePostAdvise [USER32.@] Send transaction to DDE callback function.
*
* PARAMS
* idInst [I] Instance identifier
* hszTopic [I] Handle to topic name string
* hszItem [I] Handle to item name string
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI DdePostAdvise(DWORD idInst, HSZ hszTopic, HSZ hszItem)
{
WDML_INSTANCE* pInstance = NULL;
WDML_LINK* pLink = NULL;
HDDEDATA hDdeData = 0;
HGLOBAL hItemData = 0;
WDML_CONV* pConv = NULL;
ATOM atom = 0;
UINT count;
TRACE("(%ld,0x%x,0x%x)\n", idInst, hszTopic, hszItem);
EnterCriticalSection(&WDML_CritSect);
pInstance = WDML_GetInstance(idInst);
if (pInstance == NULL || pInstance->links == NULL)
{
goto theError;
}
atom = WDML_MakeAtomFromHsz(hszItem);
if (!atom) goto theError;
/* first compute the number of links which will trigger a message */
count = 0;
for (pLink = pInstance->links[WDML_SERVER_SIDE]; pLink != NULL; pLink = pLink->next)
{
if (DdeCmpStringHandles(hszItem, pLink->hszItem) == 0)
{
count++;
}
}
if (count >= CADV_LATEACK)
{
FIXME("too high value for count\n");
count &= 0xFFFF;
}
for (pLink = pInstance->links[WDML_SERVER_SIDE]; pLink != NULL; pLink = pLink->next)
{
if (DdeCmpStringHandles(hszItem, pLink->hszItem) == 0)
{
hDdeData = WDML_InvokeCallback(pInstance, XTYP_ADVREQ, pLink->uFmt, pLink->hConv,
hszTopic, hszItem, 0, count--, 0);
if (hDdeData == (HDDEDATA)CBR_BLOCK)
{
/* MS doc is not consistent here */
FIXME("CBR_BLOCK returned for ADVREQ\n");
continue;
}
if (hDdeData)
{
if (pLink->transactionType & XTYPF_NODATA)
{
TRACE("no data\n");
hItemData = 0;
}
else
{
TRACE("with data\n");
hItemData = WDML_DataHandle2Global(hDdeData, FALSE, FALSE, FALSE, FALSE);
}
pConv = WDML_GetConv(pLink->hConv, TRUE);
if (pConv == NULL)
{
if (!WDML_IsAppOwned(hDdeData)) DdeFreeDataHandle(hDdeData);
goto theError;
}
if (!PostMessageA(pConv->hwndClient, WM_DDE_DATA, (WPARAM)pConv->hwndServer,
PackDDElParam(WM_DDE_DATA, (UINT)hItemData, atom)))
{
ERR("post message failed\n");
pConv->wStatus &= ~ST_CONNECTED;
if (!WDML_IsAppOwned(hDdeData)) DdeFreeDataHandle(hDdeData);
GlobalFree(hItemData);
goto theError;
}
if (!WDML_IsAppOwned(hDdeData)) DdeFreeDataHandle(hDdeData);
}
}
}
LeaveCriticalSection(&WDML_CritSect);
return TRUE;
theError:
LeaveCriticalSection(&WDML_CritSect);
if (atom) GlobalDeleteAtom(atom);
return FALSE;
}
/******************************************************************
* WDML_ServerNameProc
*
*
*/
static LRESULT CALLBACK WDML_ServerNameProc(HWND hwndServer, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
HWND hwndClient;
HSZ hszApp, hszTop;
HDDEDATA hDdeData = 0;
WDML_INSTANCE* pInstance;
UINT uiLo, uiHi;
switch (iMsg)
{
case WM_DDE_INITIATE:
/* wParam -- sending window handle
LOWORD(lParam) -- application atom
HIWORD(lParam) -- topic atom */
TRACE("WM_DDE_INITIATE message received!\n");
hwndClient = (HWND)wParam;
pInstance = WDML_GetInstanceFromWnd(hwndServer);
TRACE("idInst=%ld, threadID=0x%lx\n", pInstance->instanceID, GetCurrentThreadId());
if (!pInstance) return 0;
/* don't free DDEParams, since this is a broadcast */
UnpackDDElParam(WM_DDE_INITIATE, lParam, &uiLo, &uiHi);
hszApp = WDML_MakeHszFromAtom(pInstance, uiLo);
hszTop = WDML_MakeHszFromAtom(pInstance, uiHi);
if (!(pInstance->CBFflags & CBF_FAIL_CONNECTIONS))
{
BOOL self = FALSE;
CONVCONTEXT cc;
CONVCONTEXT* pcc = NULL;
WDML_CONV* pConv;
char buf[256];
if (GetWindowThreadProcessId(hwndClient, NULL) == GetWindowThreadProcessId(hwndServer, NULL) &&
WDML_GetInstanceFromWnd(hwndClient) == WDML_GetInstanceFromWnd(hwndServer))
{
self = TRUE;
}
/* FIXME: so far, we don't grab distant convcontext, so only check if remote is
* handled under DDEML, and if so build a default context
*/
if ((GetClassNameA(hwndClient, buf, sizeof(buf)) &&
strcmp(buf, WDML_szClientConvClassA) == 0) ||
(GetClassNameW(hwndClient, (LPWSTR)buf, sizeof(buf)/sizeof(WCHAR)) &&
lstrcmpW((LPWSTR)buf, WDML_szClientConvClassW) == 0))
{
pcc = &cc;
memset(pcc, 0, sizeof(*pcc));
pcc->cb = sizeof(*pcc);
pcc->iCodePage = IsWindowUnicode(hwndClient) ? CP_WINUNICODE : CP_WINANSI;
}
if ((pInstance->CBFflags & CBF_FAIL_SELFCONNECTIONS) && self)
{
TRACE("Don't do self connection as requested\n");
}
else if (hszApp && hszTop)
{
WDML_SERVER* pServer = (WDML_SERVER*)GetWindowLongA(hwndServer, GWL_WDML_SERVER);
/* check filters for name service */
if (!pServer->filterOn || DdeCmpStringHandles(pServer->hszService, hszApp) == 0)
{
/* pass on to the callback */
hDdeData = WDML_InvokeCallback(pInstance, XTYP_CONNECT,
0, 0, hszTop, hszApp, 0, (DWORD)pcc, self);
if ((UINT)hDdeData)
{
pConv = WDML_CreateServerConv(pInstance, hwndClient, hwndServer,
hszApp, hszTop);
if (pConv && pcc) pConv->wStatus |= ST_ISLOCAL;
}
}
}
else if (pInstance->servers)
{
/* pass on to the callback */
hDdeData = WDML_InvokeCallback(pInstance, XTYP_WILDCONNECT,
0, 0, hszTop, hszApp, 0, (DWORD)pcc, self);
if (hDdeData == (HDDEDATA)CBR_BLOCK)
{
/* MS doc is not consistent here */
FIXME("CBR_BLOCK returned for WILDCONNECT\n");
}
else if ((UINT)hDdeData != 0)
{
HSZPAIR* hszp;
hszp = (HSZPAIR*)DdeAccessData(hDdeData, NULL);
if (hszp)
{
int i;
for (i = 0; hszp[i].hszSvc && hszp[i].hszTopic; i++)
{
pConv = WDML_CreateServerConv(pInstance, hwndClient, hwndServer,
hszp[i].hszSvc, hszp[i].hszTopic);
if (pConv && pcc) pConv->wStatus |= ST_ISLOCAL;
}
DdeUnaccessData(hDdeData);
}
if (!WDML_IsAppOwned(hDdeData)) DdeFreeDataHandle(hDdeData);
}
}
}
return 0;
case WM_DDE_REQUEST:
FIXME("WM_DDE_REQUEST message received!\n");
return 0;
case WM_DDE_ADVISE:
FIXME("WM_DDE_ADVISE message received!\n");
return 0;
case WM_DDE_UNADVISE:
FIXME("WM_DDE_UNADVISE message received!\n");
return 0;
case WM_DDE_EXECUTE:
FIXME("WM_DDE_EXECUTE message received!\n");
return 0;
case WM_DDE_POKE:
FIXME("WM_DDE_POKE message received!\n");
return 0;
case WM_DDE_TERMINATE:
FIXME("WM_DDE_TERMINATE message received!\n");
return 0;
}
return DefWindowProcA(hwndServer, iMsg, wParam, lParam);
}