示例#1
0
/******************************************************************
 *		WDML_HandleIncomingData
 *
 *
 */
static WDML_QUEUE_STATE WDML_HandleIncomingData(WDML_CONV* pConv, MSG* msg, HDDEDATA* hdd)
{
    UINT_PTR		uiLo, uiHi;
    HDDEDATA		hDdeDataIn, hDdeDataOut;
    WDML_LINK*		pLink;
    WINE_DDEHEAD	wdh;
    HSZ			hsz;

    TRACE("WM_DDE_DATA message received in the Client Proc!\n");
    /* wParam -- sending window handle	*/
    /* lParam -- hDdeData & item HSZ	*/

    UnpackDDElParam(WM_DDE_DATA, msg->lParam, &uiLo, &uiHi);
    hsz = WDML_MakeHszFromAtom(pConv->instance, uiHi);

    hDdeDataIn = WDML_Global2DataHandle(pConv, (HGLOBAL)uiLo, &wdh);

    /* billx:
     *  For hot link, data should be passed to its callback with
     * XTYP_ADVDATA and callback should return the proper status.
     */
    pLink = WDML_FindLink(pConv->instance, (HCONV)pConv, WDML_CLIENT_SIDE, hsz,
                          uiLo != 0, wdh.cfFormat);
    if (!pLink)
    {
	WDML_DecHSZ(pConv->instance, hsz);
        DdeFreeDataHandle(hDdeDataIn);
	return WDML_QS_PASS;
    }

    if (hDdeDataIn != 0 && wdh.fAckReq)
    {
	WDML_PostAck(pConv, WDML_CLIENT_SIDE, 0, FALSE, TRUE, uiHi, msg->lParam, WM_DDE_DATA);
	if (msg->lParam)
	    msg->lParam = 0;
    }
    else
    {
	GlobalDeleteAtom(uiHi);
    }

    hDdeDataOut = WDML_InvokeCallback(pConv->instance, XTYP_ADVDATA, pLink->uFmt, pLink->hConv,
				      pConv->hszTopic, pLink->hszItem, hDdeDataIn, 0, 0);

    if (hDdeDataOut != (HDDEDATA)DDE_FACK || wdh.fRelease)
    {
        if (uiLo) GlobalFree((HANDLE)uiLo);
    }

    DdeFreeDataHandle(hDdeDataIn);

    WDML_DecHSZ(pConv->instance, hsz);
    if (msg->lParam)
	FreeDDElParam(WM_DDE_DATA, msg->lParam);

    return WDML_QS_HANDLED;
}
示例#2
0
/******************************************************************
 *		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;
}
示例#3
0
/******************************************************************
 *		WDML_ServerHandleUnadvise
 *
 *
 */
static	WDML_QUEUE_STATE WDML_ServerHandleUnadvise(WDML_CONV* pConv, WDML_XACT* pXAct)
{
    WDML_LINK*	pLink;

    if (pXAct->hszItem == (HSZ)0 || pXAct->wFmt == 0)
    {
	ERR("Unsupported yet options (null item or clipboard format)\n");
	return WDML_QS_ERROR;
    }

    pLink = WDML_FindLink(pConv->instance, (HCONV)pConv, WDML_SERVER_SIDE,
			  pXAct->hszItem, TRUE, pXAct->wFmt);
    if (pLink == NULL)
    {
	ERR("Couln'd find link for %08lx, dropping request\n", (DWORD)pXAct->hszItem);
	FreeDDElParam(WM_DDE_UNADVISE, pXAct->lParam);
	return WDML_QS_ERROR;
    }

    if (!(pConv->instance->CBFflags & CBF_FAIL_ADVISES))
    {
	WDML_InvokeCallback(pConv->instance, XTYP_ADVSTOP, pXAct->wFmt, (HCONV)pConv,
			    pConv->hszTopic, pXAct->hszItem, 0, 0, 0);
    }

    WDML_RemoveLink(pConv->instance, (HCONV)pConv, WDML_SERVER_SIDE,
		    pXAct->hszItem, pXAct->wFmt);

    /* send back ack */
    WDML_PostAck(pConv, WDML_SERVER_SIDE, 0, FALSE, TRUE, pXAct->atom,
                 pXAct->lParam, WM_DDE_UNADVISE);

    WDML_DecHSZ(pConv->instance, pXAct->hszItem);

    return WDML_QS_HANDLED;
}
示例#4
0
/******************************************************************
 *		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;
}