4 * Copyright 1997 Alexandre Julliard
5 * Copyright 1997 Len White
6 * Copyright 1999 Keith Matthews
8 * Copyright 2001 Eric Pouech
9 * Copyright 2003, 2004, 2005 Dmitry Timoshkov
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
27 #include "wine/port.h"
40 #include "dde_private.h"
41 #include "wine/unicode.h"
42 #include "wine/debug.h"
44 WINE_DEFAULT_DEBUG_CHANNEL(ddeml
);
46 /* convert between ATOM and HSZ avoiding compiler warnings */
47 #define ATOM2HSZ(atom) ((HSZ) (ULONG_PTR)(atom))
48 #define HSZ2ATOM(hsz) ((ATOM) (ULONG_PTR)(hsz))
50 static WDML_INSTANCE
* WDML_InstanceList
= NULL
;
51 static LONG WDML_MaxInstanceID
= 0; /* OK for present, have to worry about wrap-around later */
52 const WCHAR WDML_szEventClass
[] = {'W','i','n','e','D','d','e','E','v','e','n','t','C','l','a','s','s',0};
54 static CRITICAL_SECTION_DEBUG critsect_debug
=
57 { &critsect_debug
.ProcessLocksList
, &critsect_debug
.ProcessLocksList
},
58 0, 0, { (DWORD_PTR
)(__FILE__
": WDML_CritSect") }
60 CRITICAL_SECTION WDML_CritSect
= { &critsect_debug
, -1, 0, 0, 0, 0 };
62 /* ================================================================
64 * Pure DDE (non DDEML) management
66 * ================================================================ */
69 /*****************************************************************
70 * PackDDElParam (USER32.@)
75 LPARAM WINAPI
PackDDElParam(UINT msg
, UINT_PTR uiLo
, UINT_PTR uiHi
)
86 if (!(hMem
= GlobalAlloc(GMEM_DDESHARE
, sizeof(UINT_PTR
) * 2)))
88 ERR("GlobalAlloc failed\n");
91 if (!(params
= GlobalLock(hMem
)))
93 ERR("GlobalLock failed (%p)\n", hMem
);
105 return MAKELPARAM(uiLo
, uiHi
);
110 /*****************************************************************
111 * UnpackDDElParam (USER32.@)
117 BOOL WINAPI
UnpackDDElParam(UINT msg
, LPARAM lParam
,
118 PUINT_PTR uiLo
, PUINT_PTR uiHi
)
128 if (!lParam
) return FALSE
;
129 if (!(params
= GlobalLock( (HGLOBAL
)lParam
)))
131 ERR("GlobalLock failed (%lx)\n", lParam
);
134 TRACE("unpacked: low %08x, high %08x\n", params
[0], params
[1]);
135 if (uiLo
) *uiLo
= params
[0];
136 if (uiHi
) *uiHi
= params
[1];
137 GlobalUnlock( (HGLOBAL
)lParam
);
142 if (uiHi
) *uiHi
= lParam
;
146 if (uiLo
) *uiLo
= LOWORD(lParam
);
147 if (uiHi
) *uiHi
= HIWORD(lParam
);
153 /*****************************************************************
154 * FreeDDElParam (USER32.@)
160 BOOL WINAPI
FreeDDElParam(UINT msg
, LPARAM lParam
)
168 /* first check if it's a global handle */
169 if (!GlobalHandle( (LPVOID
)lParam
)) return TRUE
;
170 return !GlobalFree( (HGLOBAL
)lParam
);
178 /*****************************************************************
179 * ReuseDDElParam (USER32.@)
184 LPARAM WINAPI
ReuseDDElParam(LPARAM lParam
, UINT msgIn
, UINT msgOut
,
185 UINT_PTR uiLo
, UINT_PTR uiHi
)
201 if (!lParam
) return 0;
202 if (!(params
= GlobalLock( (HGLOBAL
)lParam
)))
204 ERR("GlobalLock failed\n");
209 TRACE("Reusing pack %08x %08x\n", uiLo
, uiHi
);
210 GlobalUnlock( (HGLOBAL
)lParam
);
214 FreeDDElParam( msgIn
, lParam
);
218 FreeDDElParam( msgIn
, lParam
);
219 return MAKELPARAM(uiLo
, uiHi
);
223 return PackDDElParam( msgOut
, uiLo
, uiHi
);
227 /*****************************************************************
228 * ImpersonateDdeClientWindow (USER32.@)
231 * hWndClient [I] handle to DDE client window
232 * hWndServer [I] handle to DDE server window
234 BOOL WINAPI
ImpersonateDdeClientWindow(HWND hWndClient
, HWND hWndServer
)
236 FIXME("(%p %p): stub\n", hWndClient
, hWndServer
);
240 /*****************************************************************
241 * DdeSetQualityOfService (USER32.@)
244 BOOL WINAPI
DdeSetQualityOfService(HWND hwndClient
, CONST SECURITY_QUALITY_OF_SERVICE
*pqosNew
,
245 PSECURITY_QUALITY_OF_SERVICE pqosPrev
)
247 FIXME("(%p %p %p): stub\n", hwndClient
, pqosNew
, pqosPrev
);
251 /* ================================================================
253 * Instance management
255 * ================================================================ */
257 /******************************************************************************
258 * IncrementInstanceId
260 * generic routine to increment the max instance Id and allocate a new application instance
262 static void WDML_IncrementInstanceId(WDML_INSTANCE
* pInstance
)
264 DWORD id
= InterlockedIncrement(&WDML_MaxInstanceID
);
266 pInstance
->instanceID
= id
;
267 TRACE("New instance id %d allocated\n", id
);
270 /******************************************************************
275 static LRESULT CALLBACK
WDML_EventProc(HWND hwndEvent
, UINT uMsg
, WPARAM wParam
, LPARAM lParam
)
277 WDML_INSTANCE
* pInstance
;
282 case WM_WDML_REGISTER
:
283 pInstance
= WDML_GetInstanceFromWnd(hwndEvent
);
284 /* try calling the Callback */
285 if (pInstance
&& !(pInstance
->CBFflags
& CBF_SKIP_REGISTRATIONS
))
287 hsz1
= WDML_MakeHszFromAtom(pInstance
, wParam
);
288 hsz2
= WDML_MakeHszFromAtom(pInstance
, lParam
);
289 WDML_InvokeCallback(pInstance
, XTYP_REGISTER
, 0, 0, hsz1
, hsz2
, 0, 0, 0);
290 WDML_DecHSZ(pInstance
, hsz1
);
291 WDML_DecHSZ(pInstance
, hsz2
);
295 case WM_WDML_UNREGISTER
:
296 pInstance
= WDML_GetInstanceFromWnd(hwndEvent
);
297 if (pInstance
&& !(pInstance
->CBFflags
& CBF_SKIP_UNREGISTRATIONS
))
299 hsz1
= WDML_MakeHszFromAtom(pInstance
, wParam
);
300 hsz2
= WDML_MakeHszFromAtom(pInstance
, lParam
);
301 WDML_InvokeCallback(pInstance
, XTYP_UNREGISTER
, 0, 0, hsz1
, hsz2
, 0, 0, 0);
302 WDML_DecHSZ(pInstance
, hsz1
);
303 WDML_DecHSZ(pInstance
, hsz2
);
307 case WM_WDML_CONNECT_CONFIRM
:
308 pInstance
= WDML_GetInstanceFromWnd(hwndEvent
);
309 if (pInstance
&& !(pInstance
->CBFflags
& CBF_SKIP_CONNECT_CONFIRMS
))
312 /* confirm connection...
313 * lookup for this conv handle
315 HWND client
= WIN_GetFullHandle( (HWND
)wParam
);
316 HWND server
= WIN_GetFullHandle( (HWND
)lParam
);
317 for (pConv
= pInstance
->convs
[WDML_SERVER_SIDE
]; pConv
!= NULL
; pConv
= pConv
->next
)
319 if (pConv
->hwndClient
== client
&& pConv
->hwndServer
== server
)
324 pConv
->wStatus
|= ST_ISLOCAL
;
326 WDML_InvokeCallback(pInstance
, XTYP_CONNECT_CONFIRM
, 0, (HCONV
)pConv
,
327 pConv
->hszTopic
, pConv
->hszService
, 0, 0,
328 (pConv
->wStatus
& ST_ISSELF
) ? 1 : 0);
333 return DefWindowProcW(hwndEvent
, uMsg
, wParam
, lParam
);
338 /******************************************************************
343 UINT
WDML_Initialize(LPDWORD pidInst
, PFNCALLBACK pfnCallback
,
344 DWORD afCmd
, DWORD ulRes
, BOOL bUnicode
, BOOL b16
)
346 WDML_INSTANCE
* pInstance
;
347 WDML_INSTANCE
* reference_inst
;
349 WNDCLASSEXW wndclass
;
351 TRACE("(%p,%p,0x%x,%d)\n",
352 pidInst
, pfnCallback
, afCmd
, ulRes
);
356 ERR("Reserved value not zero? What does this mean?\n");
357 /* trap this and no more until we know more */
358 return DMLERR_NO_ERROR
;
361 /* grab enough heap for one control struct - not really necessary for re-initialise
362 * but allows us to use same validation routines */
363 pInstance
= HeapAlloc(GetProcessHeap(), 0, sizeof(WDML_INSTANCE
));
364 if (pInstance
== NULL
)
366 /* catastrophe !! warn user & abort */
367 ERR("Instance create failed - out of memory\n");
368 return DMLERR_SYS_ERROR
;
370 pInstance
->next
= NULL
;
371 pInstance
->monitor
= (afCmd
| APPCLASS_MONITOR
);
373 /* messy bit, spec implies that 'Client Only' can be set in 2 different ways, catch 1 here */
375 pInstance
->clientOnly
= afCmd
& APPCMD_CLIENTONLY
;
376 pInstance
->instanceID
= *pidInst
; /* May need to add calling proc Id */
377 pInstance
->threadID
= GetCurrentThreadId();
378 pInstance
->callback
= *pfnCallback
;
379 pInstance
->unicode
= bUnicode
;
380 pInstance
->win16
= b16
;
381 pInstance
->nodeList
= NULL
; /* node will be added later */
382 pInstance
->monitorFlags
= afCmd
& MF_MASK
;
383 pInstance
->servers
= NULL
;
384 pInstance
->convs
[0] = NULL
;
385 pInstance
->convs
[1] = NULL
;
386 pInstance
->links
[0] = NULL
;
387 pInstance
->links
[1] = NULL
;
389 /* isolate CBF flags in one go, expect this will go the way of all attempts to be clever !! */
391 pInstance
->CBFflags
= afCmd
^((afCmd
&MF_MASK
)|((afCmd
&APPCMD_MASK
)|(afCmd
&APPCLASS_MASK
)));
393 if (!pInstance
->clientOnly
)
395 /* Check for other way of setting Client-only !! */
396 pInstance
->clientOnly
=
397 (pInstance
->CBFflags
& CBF_FAIL_ALLSVRXACTIONS
) == CBF_FAIL_ALLSVRXACTIONS
;
400 TRACE("instance created - checking validity\n");
404 /* Initialisation of new Instance Identifier */
405 TRACE("new instance, callback %p flags %X\n",pfnCallback
,afCmd
);
407 EnterCriticalSection(&WDML_CritSect
);
409 if (WDML_InstanceList
== NULL
)
411 /* can't be another instance in this case, assign to the base pointer */
412 WDML_InstanceList
= pInstance
;
414 /* since first must force filter of XTYP_CONNECT and XTYP_WILDCONNECT for
416 * ------------------------------- NOTE NOTE NOTE --------------------------
418 * the manual is not clear if this condition
419 * applies to the first call to DdeInitialize from an application, or the
420 * first call for a given callback !!!
423 pInstance
->CBFflags
= pInstance
->CBFflags
|APPCMD_FILTERINITS
;
424 TRACE("First application instance detected OK\n");
425 /* allocate new instance ID */
426 WDML_IncrementInstanceId(pInstance
);
430 /* really need to chain the new one in to the latest here, but after checking conditions
431 * such as trying to start a conversation from an application trying to monitor */
432 reference_inst
= WDML_InstanceList
;
433 TRACE("Subsequent application instance - starting checks\n");
434 while (reference_inst
->next
!= NULL
)
437 * This set of tests will work if application uses same instance Id
438 * at application level once allocated - which is what manual implies
439 * should happen. If someone tries to be
440 * clever (lazy ?) it will fail to pick up that later calls are for
441 * the same application - should we trust them ?
443 if (pInstance
->instanceID
== reference_inst
->instanceID
)
445 /* Check 1 - must be same Client-only state */
447 if (pInstance
->clientOnly
!= reference_inst
->clientOnly
)
449 ret
= DMLERR_DLL_USAGE
;
453 /* Check 2 - cannot use 'Monitor' with any non-monitor modes */
455 if (pInstance
->monitor
!= reference_inst
->monitor
)
457 ret
= DMLERR_INVALIDPARAMETER
;
461 /* Check 3 - must supply different callback address */
463 if (pInstance
->callback
== reference_inst
->callback
)
465 ret
= DMLERR_DLL_USAGE
;
469 reference_inst
= reference_inst
->next
;
471 /* All cleared, add to chain */
473 TRACE("Application Instance checks finished\n");
474 WDML_IncrementInstanceId(pInstance
);
475 reference_inst
->next
= pInstance
;
477 LeaveCriticalSection(&WDML_CritSect
);
479 *pidInst
= pInstance
->instanceID
;
481 /* for deadlock issues, windows must always be created when outside the critical section */
482 wndclass
.cbSize
= sizeof(wndclass
);
484 wndclass
.lpfnWndProc
= WDML_EventProc
;
485 wndclass
.cbClsExtra
= 0;
486 wndclass
.cbWndExtra
= sizeof(ULONG_PTR
);
487 wndclass
.hInstance
= 0;
489 wndclass
.hCursor
= 0;
490 wndclass
.hbrBackground
= 0;
491 wndclass
.lpszMenuName
= NULL
;
492 wndclass
.lpszClassName
= WDML_szEventClass
;
493 wndclass
.hIconSm
= 0;
495 RegisterClassExW(&wndclass
);
497 pInstance
->hwndEvent
= CreateWindowW(WDML_szEventClass
, NULL
,
498 WS_POPUP
, 0, 0, 0, 0,
501 SetWindowLongPtrW(pInstance
->hwndEvent
, GWL_WDML_INSTANCE
, (ULONG_PTR
)pInstance
);
503 TRACE("New application instance processing finished OK\n");
507 /* Reinitialisation situation --- FIX */
508 TRACE("reinitialisation of (%p,%p,0x%x,%d): stub\n", pidInst
, pfnCallback
, afCmd
, ulRes
);
510 EnterCriticalSection(&WDML_CritSect
);
512 if (WDML_InstanceList
== NULL
)
514 ret
= DMLERR_INVALIDPARAMETER
;
517 HeapFree(GetProcessHeap(), 0, pInstance
); /* finished - release heap space used as work store */
518 /* can't reinitialise if we have initialised nothing !! */
519 reference_inst
= WDML_InstanceList
;
520 /* must first check if we have been given a valid instance to re-initialise !! how do we do that ? */
522 * MS allows initialisation without specifying a callback, should we allow addition of the
523 * callback by a later call to initialise ? - if so this lot will have to change
525 while (reference_inst
->next
!= NULL
)
527 if (*pidInst
== reference_inst
->instanceID
&& pfnCallback
== reference_inst
->callback
)
529 /* Check 1 - cannot change client-only mode if set via APPCMD_CLIENTONLY */
531 if (reference_inst
->clientOnly
)
533 if ((reference_inst
->CBFflags
& CBF_FAIL_ALLSVRXACTIONS
) != CBF_FAIL_ALLSVRXACTIONS
)
535 /* i.e. Was set to Client-only and through APPCMD_CLIENTONLY */
537 if (!(afCmd
& APPCMD_CLIENTONLY
))
539 ret
= DMLERR_INVALIDPARAMETER
;
544 /* Check 2 - cannot change monitor modes */
546 if (pInstance
->monitor
!= reference_inst
->monitor
)
548 ret
= DMLERR_INVALIDPARAMETER
;
552 /* Check 3 - trying to set Client-only via APPCMD when not set so previously */
554 if ((afCmd
&APPCMD_CLIENTONLY
) && !reference_inst
->clientOnly
)
556 ret
= DMLERR_INVALIDPARAMETER
;
561 reference_inst
= reference_inst
->next
;
563 if (reference_inst
->next
== NULL
)
565 ret
= DMLERR_INVALIDPARAMETER
;
568 /* All checked - change relevant flags */
570 reference_inst
->CBFflags
= pInstance
->CBFflags
;
571 reference_inst
->clientOnly
= pInstance
->clientOnly
;
572 reference_inst
->monitorFlags
= pInstance
->monitorFlags
;
573 LeaveCriticalSection(&WDML_CritSect
);
576 return DMLERR_NO_ERROR
;
578 HeapFree(GetProcessHeap(), 0, pInstance
);
579 LeaveCriticalSection(&WDML_CritSect
);
583 /******************************************************************************
584 * DdeInitializeA (USER32.@)
586 * See DdeInitializeW.
588 UINT WINAPI
DdeInitializeA(LPDWORD pidInst
, PFNCALLBACK pfnCallback
,
589 DWORD afCmd
, DWORD ulRes
)
591 return WDML_Initialize(pidInst
, pfnCallback
, afCmd
, ulRes
, FALSE
, FALSE
);
594 /******************************************************************************
595 * DdeInitializeW [USER32.@]
596 * Registers an application with the DDEML
599 * pidInst [I] Pointer to instance identifier
600 * pfnCallback [I] Pointer to callback function
601 * afCmd [I] Set of command and filter flags
605 * Success: DMLERR_NO_ERROR
606 * Failure: DMLERR_DLL_USAGE, DMLERR_INVALIDPARAMETER, DMLERR_SYS_ERROR
608 UINT WINAPI
DdeInitializeW(LPDWORD pidInst
, PFNCALLBACK pfnCallback
,
609 DWORD afCmd
, DWORD ulRes
)
611 return WDML_Initialize(pidInst
, pfnCallback
, afCmd
, ulRes
, TRUE
, FALSE
);
614 /*****************************************************************
615 * DdeUninitialize [USER32.@] Frees DDEML resources
618 * idInst [I] Instance identifier
625 BOOL WINAPI
DdeUninitialize(DWORD idInst
)
627 /* Stage one - check if we have a handle for this instance
629 WDML_INSTANCE
* pInstance
;
631 WDML_CONV
* pConvNext
;
633 TRACE("(%d)\n", idInst
);
635 EnterCriticalSection(&WDML_CritSect
);
637 /* First check instance
639 pInstance
= WDML_GetInstance(idInst
);
640 if (pInstance
== NULL
)
642 LeaveCriticalSection(&WDML_CritSect
);
644 * Needs something here to record NOT_INITIALIZED ready for DdeGetLastError
649 /* first terminate all conversations client side
650 * this shall close existing links...
652 for (pConv
= pInstance
->convs
[WDML_CLIENT_SIDE
]; pConv
!= NULL
; pConv
= pConvNext
)
654 pConvNext
= pConv
->next
;
655 DdeDisconnect((HCONV
)pConv
);
657 if (pInstance
->convs
[WDML_CLIENT_SIDE
])
658 FIXME("still pending conversations\n");
660 /* then unregister all known service names */
661 DdeNameService(idInst
, 0, 0, DNS_UNREGISTER
);
663 /* Free the nodes that were not freed by this instance
664 * and remove the nodes from the list of HSZ nodes.
666 WDML_FreeAllHSZ(pInstance
);
668 DestroyWindow(pInstance
->hwndEvent
);
670 /* OK now delete the instance handle itself */
672 if (WDML_InstanceList
== pInstance
)
674 /* special case - the first/only entry */
675 WDML_InstanceList
= pInstance
->next
;
679 /* general case, remove entry */
682 for (inst
= WDML_InstanceList
; inst
->next
!= pInstance
; inst
= inst
->next
);
683 inst
->next
= pInstance
->next
;
685 /* leave crit sect and release the heap entry
687 HeapFree(GetProcessHeap(), 0, pInstance
);
688 LeaveCriticalSection(&WDML_CritSect
);
692 /******************************************************************
693 * WDML_NotifyThreadExit
697 void WDML_NotifyThreadDetach(void)
699 WDML_INSTANCE
* pInstance
;
701 DWORD tid
= GetCurrentThreadId();
703 EnterCriticalSection(&WDML_CritSect
);
704 for (pInstance
= WDML_InstanceList
; pInstance
!= NULL
; pInstance
= next
)
706 next
= pInstance
->next
;
707 if (pInstance
->threadID
== tid
)
709 DdeUninitialize(pInstance
->instanceID
);
712 LeaveCriticalSection(&WDML_CritSect
);
715 /******************************************************************
716 * WDML_InvokeCallback
720 HDDEDATA
WDML_InvokeCallback(WDML_INSTANCE
* pInstance
, UINT uType
, UINT uFmt
, HCONV hConv
,
721 HSZ hsz1
, HSZ hsz2
, HDDEDATA hdata
,
722 ULONG_PTR dwData1
, ULONG_PTR dwData2
)
726 if (pInstance
== NULL
)
728 TRACE("invoking CB%d[%p] (%x %x %p %p %p %p %lx %lx)\n",
729 pInstance
->win16
? 16 : 32, pInstance
->callback
, uType
, uFmt
,
730 hConv
, hsz1
, hsz2
, hdata
, dwData1
, dwData2
);
731 if (pInstance
->win16
)
733 ret
= WDML_InvokeCallback16(pInstance
->callback
, uType
, uFmt
, hConv
,
734 hsz1
, hsz2
, hdata
, dwData1
, dwData2
);
738 ret
= pInstance
->callback(uType
, uFmt
, hConv
, hsz1
, hsz2
, hdata
, dwData1
, dwData2
);
740 TRACE("done => %p\n", ret
);
744 /*****************************************************************************
747 * generic routine to return a pointer to the relevant DDE_HANDLE_ENTRY
748 * for an instance Id, or NULL if the entry does not exist
751 WDML_INSTANCE
* WDML_GetInstance(DWORD instId
)
753 WDML_INSTANCE
* pInstance
;
755 for (pInstance
= WDML_InstanceList
; pInstance
!= NULL
; pInstance
= pInstance
->next
)
757 if (pInstance
->instanceID
== instId
)
759 if (GetCurrentThreadId() != pInstance
->threadID
)
761 FIXME("Tried to get instance from wrong thread\n");
767 TRACE("Instance entry missing\n");
771 /******************************************************************
772 * WDML_GetInstanceFromWnd
776 WDML_INSTANCE
* WDML_GetInstanceFromWnd(HWND hWnd
)
778 return (WDML_INSTANCE
*)GetWindowLongPtrW(hWnd
, GWL_WDML_INSTANCE
);
781 /******************************************************************************
782 * DdeGetLastError [USER32.@] Gets most recent error code
785 * idInst [I] Instance identifier
790 UINT WINAPI
DdeGetLastError(DWORD idInst
)
793 WDML_INSTANCE
* pInstance
;
795 EnterCriticalSection(&WDML_CritSect
);
797 /* First check instance
799 pInstance
= WDML_GetInstance(idInst
);
800 if (pInstance
== NULL
)
802 error_code
= DMLERR_INVALIDPARAMETER
;
806 error_code
= pInstance
->lastError
;
807 pInstance
->lastError
= 0;
810 LeaveCriticalSection(&WDML_CritSect
);
814 /* ================================================================
818 * ================================================================ */
821 /******************************************************************
826 static HSZNode
* WDML_FindNode(WDML_INSTANCE
* pInstance
, HSZ hsz
)
830 if (pInstance
== NULL
) return NULL
;
832 for (pNode
= pInstance
->nodeList
; pNode
!= NULL
; pNode
= pNode
->next
)
834 if (pNode
->hsz
== hsz
) break;
836 if (!pNode
) WARN("HSZ %p not found\n", hsz
);
840 /******************************************************************
841 * WDML_MakeAtomFromHsz
843 * Creates a global atom from an existing HSZ
844 * Generally used before sending an HSZ as an atom to a remote app
846 ATOM
WDML_MakeAtomFromHsz(HSZ hsz
)
848 WCHAR nameBuffer
[MAX_BUFFER_LEN
];
850 if (GetAtomNameW(HSZ2ATOM(hsz
), nameBuffer
, MAX_BUFFER_LEN
))
851 return GlobalAddAtomW(nameBuffer
);
852 WARN("HSZ %p not found\n", hsz
);
856 /******************************************************************
857 * WDML_MakeHszFromAtom
859 * Creates a HSZ from an existing global atom
860 * Generally used while receiving a global atom and transforming it
863 HSZ
WDML_MakeHszFromAtom(WDML_INSTANCE
* pInstance
, ATOM atom
)
865 WCHAR nameBuffer
[MAX_BUFFER_LEN
];
867 if (!atom
) return NULL
;
869 if (GlobalGetAtomNameW(atom
, nameBuffer
, MAX_BUFFER_LEN
))
871 TRACE("%x => %s\n", atom
, debugstr_w(nameBuffer
));
872 return DdeCreateStringHandleW(pInstance
->instanceID
, nameBuffer
, CP_WINUNICODE
);
874 WARN("ATOM 0x%x not found\n", atom
);
878 /******************************************************************
883 BOOL
WDML_IncHSZ(WDML_INSTANCE
* pInstance
, HSZ hsz
)
887 pNode
= WDML_FindNode(pInstance
, hsz
);
888 if (!pNode
) return FALSE
;
894 /******************************************************************************
895 * WDML_DecHSZ (INTERNAL)
897 * Decrease the ref count of an HSZ. If it reaches 0, the node is removed from the list
899 * Returns -1 is the HSZ isn't found, otherwise it's the current (after --) of the ref count
901 BOOL
WDML_DecHSZ(WDML_INSTANCE
* pInstance
, HSZ hsz
)
903 HSZNode
* pPrev
= NULL
;
906 for (pCurrent
= pInstance
->nodeList
; pCurrent
!= NULL
; pCurrent
= (pPrev
= pCurrent
)->next
)
908 /* If we found the node we were looking for and its ref count is one,
911 if (pCurrent
->hsz
== hsz
)
913 if (--pCurrent
->refCount
== 0)
915 if (pCurrent
== pInstance
->nodeList
)
917 pInstance
->nodeList
= pCurrent
->next
;
921 pPrev
->next
= pCurrent
->next
;
923 HeapFree(GetProcessHeap(), 0, pCurrent
);
924 DeleteAtom(HSZ2ATOM(hsz
));
929 WARN("HSZ %p not found\n", hsz
);
934 /******************************************************************************
935 * WDML_FreeAllHSZ (INTERNAL)
937 * Frees up all the strings still allocated in the list and
938 * remove all the nodes from the list of HSZ nodes.
940 void WDML_FreeAllHSZ(WDML_INSTANCE
* pInstance
)
942 /* Free any strings created in this instance.
944 while (pInstance
->nodeList
!= NULL
)
946 DdeFreeStringHandle(pInstance
->instanceID
, pInstance
->nodeList
->hsz
);
950 /******************************************************************************
951 * InsertHSZNode (INTERNAL)
953 * Insert a node to the head of the list.
955 static void WDML_InsertHSZNode(WDML_INSTANCE
* pInstance
, HSZ hsz
)
959 HSZNode
* pNew
= NULL
;
960 /* Create a new node for this HSZ.
962 pNew
= HeapAlloc(GetProcessHeap(), 0, sizeof(HSZNode
));
966 pNew
->next
= pInstance
->nodeList
;
968 pInstance
->nodeList
= pNew
;
972 ERR("Primary HSZ Node allocation failed - out of memory\n");
977 /******************************************************************
982 static int WDML_QueryString(WDML_INSTANCE
* pInstance
, HSZ hsz
, LPVOID ptr
, DWORD cchMax
,
985 WCHAR pString
[MAX_BUFFER_LEN
];
987 /* If psz is null, we have to return only the length
993 cchMax
= MAX_BUFFER_LEN
;
999 ret
= GetAtomNameA(HSZ2ATOM(hsz
), ptr
, cchMax
);
1002 ret
= GetAtomNameW(HSZ2ATOM(hsz
), ptr
, cchMax
);
1005 ERR("Unknown code page %d\n", codepage
);
1011 /*****************************************************************
1012 * DdeQueryStringA [USER32.@]
1014 DWORD WINAPI
DdeQueryStringA(DWORD idInst
, HSZ hsz
, LPSTR psz
, DWORD cchMax
, INT iCodePage
)
1017 WDML_INSTANCE
* pInstance
;
1019 TRACE("(%d, %p, %p, %d, %d)\n", idInst
, hsz
, psz
, cchMax
, iCodePage
);
1021 EnterCriticalSection(&WDML_CritSect
);
1023 /* First check instance
1025 pInstance
= WDML_GetInstance(idInst
);
1026 if (pInstance
!= NULL
)
1028 if (iCodePage
== 0) iCodePage
= CP_WINANSI
;
1029 ret
= WDML_QueryString(pInstance
, hsz
, psz
, cchMax
, iCodePage
);
1031 LeaveCriticalSection(&WDML_CritSect
);
1033 TRACE("returning %d (%s)\n", ret
, debugstr_a(psz
));
1037 /*****************************************************************
1038 * DdeQueryStringW [USER32.@]
1041 DWORD WINAPI
DdeQueryStringW(DWORD idInst
, HSZ hsz
, LPWSTR psz
, DWORD cchMax
, INT iCodePage
)
1044 WDML_INSTANCE
* pInstance
;
1046 TRACE("(%d, %p, %p, %d, %d)\n", idInst
, hsz
, psz
, cchMax
, iCodePage
);
1048 EnterCriticalSection(&WDML_CritSect
);
1050 /* First check instance
1052 pInstance
= WDML_GetInstance(idInst
);
1053 if (pInstance
!= NULL
)
1055 if (iCodePage
== 0) iCodePage
= CP_WINUNICODE
;
1056 ret
= WDML_QueryString(pInstance
, hsz
, psz
, cchMax
, iCodePage
);
1058 LeaveCriticalSection(&WDML_CritSect
);
1060 TRACE("returning %d (%s)\n", ret
, debugstr_w(psz
));
1064 /******************************************************************
1069 static HSZ
WDML_CreateString(WDML_INSTANCE
* pInstance
, LPCVOID ptr
, int codepage
)
1076 hsz
= ATOM2HSZ(AddAtomA(ptr
));
1077 TRACE("added atom %s with HSZ %p,\n", debugstr_a(ptr
), hsz
);
1080 hsz
= ATOM2HSZ(AddAtomW(ptr
));
1081 TRACE("added atom %s with HSZ %p,\n", debugstr_w(ptr
), hsz
);
1084 ERR("Unknown code page %d\n", codepage
);
1087 WDML_InsertHSZNode(pInstance
, hsz
);
1091 /*****************************************************************
1092 * DdeCreateStringHandleA [USER32.@]
1094 * See DdeCreateStringHandleW.
1096 HSZ WINAPI
DdeCreateStringHandleA(DWORD idInst
, LPCSTR psz
, INT codepage
)
1099 WDML_INSTANCE
* pInstance
;
1101 TRACE("(%d,%s,%d)\n", idInst
, debugstr_a(psz
), codepage
);
1103 EnterCriticalSection(&WDML_CritSect
);
1105 pInstance
= WDML_GetInstance(idInst
);
1108 if (codepage
== 0) codepage
= CP_WINANSI
;
1109 hsz
= WDML_CreateString(pInstance
, psz
, codepage
);
1112 LeaveCriticalSection(&WDML_CritSect
);
1117 /******************************************************************************
1118 * DdeCreateStringHandleW [USER32.@] Creates handle to identify string
1121 * idInst [I] Instance identifier
1122 * psz [I] Pointer to string
1123 * codepage [I] Code page identifier
1125 * Success: String handle
1128 HSZ WINAPI
DdeCreateStringHandleW(DWORD idInst
, LPCWSTR psz
, INT codepage
)
1130 WDML_INSTANCE
* pInstance
;
1133 TRACE("(%d,%s,%d)\n", idInst
, debugstr_w(psz
), codepage
);
1135 EnterCriticalSection(&WDML_CritSect
);
1137 pInstance
= WDML_GetInstance(idInst
);
1140 if (codepage
== 0) codepage
= CP_WINUNICODE
;
1141 hsz
= WDML_CreateString(pInstance
, psz
, codepage
);
1143 LeaveCriticalSection(&WDML_CritSect
);
1148 /*****************************************************************
1149 * DdeFreeStringHandle (USER32.@)
1154 BOOL WINAPI
DdeFreeStringHandle(DWORD idInst
, HSZ hsz
)
1156 WDML_INSTANCE
* pInstance
;
1159 TRACE("(%d,%p):\n", idInst
, hsz
);
1161 EnterCriticalSection(&WDML_CritSect
);
1163 /* First check instance
1165 pInstance
= WDML_GetInstance(idInst
);
1167 ret
= WDML_DecHSZ(pInstance
, hsz
);
1169 LeaveCriticalSection(&WDML_CritSect
);
1174 /*****************************************************************
1175 * DdeKeepStringHandle (USER32.@)
1181 BOOL WINAPI
DdeKeepStringHandle(DWORD idInst
, HSZ hsz
)
1183 WDML_INSTANCE
* pInstance
;
1186 TRACE("(%d,%p):\n", idInst
, hsz
);
1188 EnterCriticalSection(&WDML_CritSect
);
1190 /* First check instance
1192 pInstance
= WDML_GetInstance(idInst
);
1194 ret
= WDML_IncHSZ(pInstance
, hsz
);
1196 LeaveCriticalSection(&WDML_CritSect
);
1200 /*****************************************************************
1201 * DdeCmpStringHandles (USER32.@)
1203 * Compares the value of two string handles. This comparison is
1204 * not case sensitive.
1207 * hsz1 [I] Handle to the first string
1208 * hsz2 [I] Handle to the second string
1211 * -1 The value of hsz1 is zero or less than hsz2
1212 * 0 The values of hsz 1 and 2 are the same or both zero.
1213 * 1 The value of hsz2 is zero of less than hsz1
1215 INT WINAPI
DdeCmpStringHandles(HSZ hsz1
, HSZ hsz2
)
1217 WCHAR psz1
[MAX_BUFFER_LEN
];
1218 WCHAR psz2
[MAX_BUFFER_LEN
];
1222 ret1
= GetAtomNameW(HSZ2ATOM(hsz1
), psz1
, MAX_BUFFER_LEN
);
1223 ret2
= GetAtomNameW(HSZ2ATOM(hsz2
), psz2
, MAX_BUFFER_LEN
);
1225 TRACE("(%p<%s> %p<%s>);\n", hsz1
, debugstr_w(psz1
), hsz2
, debugstr_w(psz2
));
1227 /* Make sure we found both strings. */
1228 if (ret1
== 0 && ret2
== 0)
1230 /* If both are not found, return both "zero strings". */
1235 /* If hsz1 is a not found, return hsz1 is "zero string". */
1240 /* If hsz2 is a not found, return hsz2 is "zero string". */
1245 /* Compare the two strings we got (case insensitive). */
1246 ret
= lstrcmpiW(psz1
, psz2
);
1247 /* Since strcmp returns any number smaller than
1248 * 0 when the first string is found to be less than
1249 * the second one we must make sure we are returning
1250 * the proper values.
1265 /* ================================================================
1267 * Data handle management
1269 * ================================================================ */
1271 /*****************************************************************
1272 * DdeCreateDataHandle (USER32.@)
1274 HDDEDATA WINAPI
DdeCreateDataHandle(DWORD idInst
, LPBYTE pSrc
, DWORD cb
, DWORD cbOff
,
1275 HSZ hszItem
, UINT wFmt
, UINT afCmd
)
1277 /* For now, we ignore idInst, hszItem.
1278 * The purpose of these arguments still need to be investigated.
1283 DDE_DATAHANDLE_HEAD
* pDdh
;
1284 WCHAR psz
[MAX_BUFFER_LEN
];
1286 if (!GetAtomNameW(HSZ2ATOM(hszItem
), psz
, MAX_BUFFER_LEN
))
1288 psz
[0] = HSZ2ATOM(hszItem
);
1292 TRACE("(%d,%p,cb %d, cbOff %d,%p <%s>,fmt %04x,%x)\n",
1293 idInst
, pSrc
, cb
, cbOff
, hszItem
, debugstr_w(psz
), wFmt
, afCmd
);
1295 if (afCmd
!= 0 && afCmd
!= HDATA_APPOWNED
)
1298 /* we use the first 4 bytes to store the size */
1299 if (!(hMem
= GlobalAlloc(GMEM_MOVEABLE
| GMEM_DDESHARE
, cb
+ cbOff
+ sizeof(DDE_DATAHANDLE_HEAD
))))
1301 ERR("GlobalAlloc failed\n");
1305 pDdh
= (DDE_DATAHANDLE_HEAD
*)GlobalLock(hMem
);
1312 pDdh
->cfFormat
= wFmt
;
1313 pDdh
->bAppOwned
= (afCmd
== HDATA_APPOWNED
);
1315 pByte
= (LPBYTE
)(pDdh
+ 1);
1318 memcpy(pByte
, pSrc
+ cbOff
, cb
);
1322 TRACE("=> %p\n", hMem
);
1323 return (HDDEDATA
)hMem
;
1326 /*****************************************************************
1328 * DdeAddData (USER32.@)
1330 HDDEDATA WINAPI
DdeAddData(HDDEDATA hData
, LPBYTE pSrc
, DWORD cb
, DWORD cbOff
)
1332 DWORD old_sz
, new_sz
;
1335 TRACE("(%p,%p,cb %d, cbOff %d)\n", hData
, pSrc
, cb
, cbOff
);
1337 pDst
= DdeAccessData(hData
, &old_sz
);
1338 if (!pDst
) return 0;
1340 new_sz
= cb
+ cbOff
;
1341 if (new_sz
> old_sz
)
1343 DdeUnaccessData(hData
);
1344 hData
= GlobalReAlloc((HGLOBAL
)hData
, new_sz
+ sizeof(DDE_DATAHANDLE_HEAD
),
1345 GMEM_MOVEABLE
| GMEM_DDESHARE
);
1346 pDst
= DdeAccessData(hData
, &old_sz
);
1349 if (!pDst
) return 0;
1351 memcpy(pDst
+ cbOff
, pSrc
, cb
);
1352 DdeUnaccessData(hData
);
1356 /******************************************************************************
1357 * DdeGetData [USER32.@] Copies data from DDE object to local buffer
1361 * hData [I] Handle to DDE object
1362 * pDst [I] Pointer to destination buffer
1363 * cbMax [I] Amount of data to copy
1364 * cbOff [I] Offset to beginning of data
1367 * Size of memory object associated with handle
1369 DWORD WINAPI
DdeGetData(HDDEDATA hData
, LPBYTE pDst
, DWORD cbMax
, DWORD cbOff
)
1371 DWORD dwSize
, dwRet
;
1374 TRACE("(%p,%p,%d,%d)\n", hData
, pDst
, cbMax
, cbOff
);
1376 pByte
= DdeAccessData(hData
, &dwSize
);
1384 else if (cbOff
+ cbMax
< dwSize
)
1388 else if (cbOff
< dwSize
)
1390 dwRet
= dwSize
- cbOff
;
1396 if (pDst
&& dwRet
!= 0)
1398 memcpy(pDst
, pByte
+ cbOff
, dwRet
);
1400 DdeUnaccessData(hData
);
1409 /*****************************************************************
1410 * DdeAccessData (USER32.@)
1412 LPBYTE WINAPI
DdeAccessData(HDDEDATA hData
, LPDWORD pcbDataSize
)
1414 HGLOBAL hMem
= (HGLOBAL
)hData
;
1415 DDE_DATAHANDLE_HEAD
* pDdh
;
1417 TRACE("(%p,%p)\n", hData
, pcbDataSize
);
1419 pDdh
= (DDE_DATAHANDLE_HEAD
*)GlobalLock(hMem
);
1422 ERR("Failed on GlobalLock(%p)\n", hMem
);
1426 if (pcbDataSize
!= NULL
)
1428 *pcbDataSize
= GlobalSize(hMem
) - sizeof(DDE_DATAHANDLE_HEAD
);
1430 TRACE("=> %p (%lu) fmt %04x\n", pDdh
+ 1, GlobalSize(hMem
) - sizeof(DDE_DATAHANDLE_HEAD
), pDdh
->cfFormat
);
1431 return (LPBYTE
)(pDdh
+ 1);
1434 /*****************************************************************
1435 * DdeUnaccessData (USER32.@)
1437 BOOL WINAPI
DdeUnaccessData(HDDEDATA hData
)
1439 HGLOBAL hMem
= (HGLOBAL
)hData
;
1441 TRACE("(%p)\n", hData
);
1448 /*****************************************************************
1449 * DdeFreeDataHandle (USER32.@)
1451 BOOL WINAPI
DdeFreeDataHandle(HDDEDATA hData
)
1453 TRACE("(%p)\n", hData
);
1454 return GlobalFree((HGLOBAL
)hData
) == 0;
1457 /******************************************************************
1462 BOOL
WDML_IsAppOwned(HDDEDATA hData
)
1464 DDE_DATAHANDLE_HEAD
* pDdh
;
1467 pDdh
= (DDE_DATAHANDLE_HEAD
*)GlobalLock((HGLOBAL
)hData
);
1470 ret
= pDdh
->bAppOwned
;
1471 GlobalUnlock((HGLOBAL
)hData
);
1476 /* ================================================================
1478 * Global <=> Data handle management
1480 * ================================================================ */
1482 /* Note: we use a DDEDATA, but layout of DDEDATA, DDEADVISE and DDEPOKE structures is similar:
1484 * (bytes) (bits) comment
1485 * 0 16 bit fields for options (release, ackreq, response...)
1486 * 2 16 clipboard format
1487 * 4 ? data to be used
1489 HDDEDATA
WDML_Global2DataHandle(HGLOBAL hMem
, WINE_DDEHEAD
* p
)
1497 pDd
= GlobalLock(hMem
);
1498 size
= GlobalSize(hMem
) - sizeof(WINE_DDEHEAD
);
1501 if (p
) memcpy(p
, pDd
, sizeof(WINE_DDEHEAD
));
1502 switch (pDd
->cfFormat
)
1505 FIXME("Unsupported format (%04x) for data %p, passing raw information\n",
1506 pDd
->cfFormat
, hMem
);
1510 ret
= DdeCreateDataHandle(0, pDd
->Value
, size
, 0, 0, pDd
->cfFormat
, 0);
1513 if (size
>= sizeof(BITMAP
))
1515 BITMAP
* bmp
= (BITMAP
*)pDd
->Value
;
1516 int count
= bmp
->bmWidthBytes
* bmp
->bmHeight
* bmp
->bmPlanes
;
1517 if (size
>= sizeof(BITMAP
) + count
)
1521 if ((hbmp
= CreateBitmap(bmp
->bmWidth
, bmp
->bmHeight
,
1522 bmp
->bmPlanes
, bmp
->bmBitsPixel
,
1523 pDd
->Value
+ sizeof(BITMAP
))))
1525 ret
= DdeCreateDataHandle(0, (LPBYTE
)&hbmp
, sizeof(hbmp
),
1526 0, 0, CF_BITMAP
, 0);
1528 else ERR("Can't create bmp\n");
1532 ERR("Wrong count: %u / %d\n", size
, count
);
1534 } else ERR("No bitmap header\n");
1543 /******************************************************************
1544 * WDML_DataHandle2Global
1548 HGLOBAL
WDML_DataHandle2Global(HDDEDATA hDdeData
, BOOL fResponse
, BOOL fRelease
,
1549 BOOL fDeferUpd
, BOOL fAckReq
)
1551 DDE_DATAHANDLE_HEAD
* pDdh
;
1555 dwSize
= GlobalSize((HGLOBAL
)hDdeData
) - sizeof(DDE_DATAHANDLE_HEAD
);
1556 pDdh
= (DDE_DATAHANDLE_HEAD
*)GlobalLock((HGLOBAL
)hDdeData
);
1559 WINE_DDEHEAD
* wdh
= NULL
;
1561 switch (pDdh
->cfFormat
)
1564 FIXME("Unsupported format (%04x) for data %p, passing raw information\n",
1565 pDdh
->cfFormat
, hDdeData
);
1569 hMem
= GlobalAlloc(GMEM_MOVEABLE
| GMEM_DDESHARE
, sizeof(WINE_DDEHEAD
) + dwSize
);
1570 if (hMem
&& (wdh
= GlobalLock(hMem
)))
1572 memcpy(wdh
+ 1, pDdh
+ 1, dwSize
);
1576 if (dwSize
>= sizeof(HBITMAP
))
1580 HBITMAP hbmp
= *(HBITMAP
*)(pDdh
+ 1);
1582 if (GetObjectW(hbmp
, sizeof(bmp
), &bmp
))
1584 count
= bmp
.bmWidthBytes
* bmp
.bmHeight
;
1585 hMem
= GlobalAlloc(GMEM_MOVEABLE
| GMEM_DDESHARE
,
1586 sizeof(WINE_DDEHEAD
) + sizeof(bmp
) + count
);
1587 if (hMem
&& (wdh
= GlobalLock(hMem
)))
1589 memcpy(wdh
+ 1, &bmp
, sizeof(bmp
));
1590 GetBitmapBits(hbmp
, count
, ((char*)(wdh
+ 1)) + sizeof(bmp
));
1599 wdh
->fResponse
= fResponse
;
1600 wdh
->fRelease
= fRelease
;
1601 wdh
->fDeferUpd
= fDeferUpd
;
1602 wdh
->fAckReq
= fAckReq
;
1603 wdh
->cfFormat
= pDdh
->cfFormat
;
1606 GlobalUnlock((HGLOBAL
)hDdeData
);
1612 /* ================================================================
1616 * ================================================================ */
1618 /******************************************************************
1623 WDML_SERVER
* WDML_AddServer(WDML_INSTANCE
* pInstance
, HSZ hszService
, HSZ hszTopic
)
1625 static const WCHAR fmtW
[] = {'%','s','(','0','x','%','0','8','l','x',')',0};
1626 WDML_SERVER
* pServer
;
1630 pServer
= HeapAlloc(GetProcessHeap(), 0, sizeof(WDML_SERVER
));
1631 if (pServer
== NULL
) return NULL
;
1633 pServer
->hszService
= hszService
;
1634 WDML_IncHSZ(pInstance
, hszService
);
1636 DdeQueryStringW(pInstance
->instanceID
, hszService
, buf1
, 256, CP_WINUNICODE
);
1637 snprintfW(buf2
, 256, fmtW
, buf1
, GetCurrentProcessId());
1638 pServer
->hszServiceSpec
= DdeCreateStringHandleW(pInstance
->instanceID
, buf2
, CP_WINUNICODE
);
1640 pServer
->atomService
= WDML_MakeAtomFromHsz(pServer
->hszService
);
1641 pServer
->atomServiceSpec
= WDML_MakeAtomFromHsz(pServer
->hszServiceSpec
);
1643 pServer
->filterOn
= TRUE
;
1645 pServer
->next
= pInstance
->servers
;
1646 pInstance
->servers
= pServer
;
1650 /******************************************************************
1655 void WDML_RemoveServer(WDML_INSTANCE
* pInstance
, HSZ hszService
, HSZ hszTopic
)
1657 WDML_SERVER
* pPrev
= NULL
;
1658 WDML_SERVER
* pServer
= NULL
;
1660 WDML_CONV
* pConvNext
;
1662 pServer
= pInstance
->servers
;
1664 while (pServer
!= NULL
)
1666 if (DdeCmpStringHandles(pServer
->hszService
, hszService
) == 0)
1668 WDML_BroadcastDDEWindows(WDML_szEventClass
, WM_WDML_UNREGISTER
,
1669 pServer
->atomService
, pServer
->atomServiceSpec
);
1670 /* terminate all conversations for given topic */
1671 for (pConv
= pInstance
->convs
[WDML_SERVER_SIDE
]; pConv
!= NULL
; pConv
= pConvNext
)
1673 pConvNext
= pConv
->next
;
1674 if (DdeCmpStringHandles(pConv
->hszService
, hszService
) == 0)
1676 WDML_RemoveConv(pConv
, WDML_SERVER_SIDE
);
1677 /* don't care about return code (whether client window is present or not) */
1678 PostMessageW(pConv
->hwndClient
, WM_DDE_TERMINATE
, (WPARAM
)pConv
->hwndServer
, 0);
1681 if (pServer
== pInstance
->servers
)
1683 pInstance
->servers
= pServer
->next
;
1687 pPrev
->next
= pServer
->next
;
1690 DestroyWindow(pServer
->hwndServer
);
1691 WDML_DecHSZ(pInstance
, pServer
->hszServiceSpec
);
1692 WDML_DecHSZ(pInstance
, pServer
->hszService
);
1694 GlobalDeleteAtom(pServer
->atomService
);
1695 GlobalDeleteAtom(pServer
->atomServiceSpec
);
1697 HeapFree(GetProcessHeap(), 0, pServer
);
1702 pServer
= pServer
->next
;
1706 /*****************************************************************************
1709 * generic routine to return a pointer to the relevant ServiceNode
1710 * for a given service name, or NULL if the entry does not exist
1713 WDML_SERVER
* WDML_FindServer(WDML_INSTANCE
* pInstance
, HSZ hszService
, HSZ hszTopic
)
1715 WDML_SERVER
* pServer
;
1717 for (pServer
= pInstance
->servers
; pServer
!= NULL
; pServer
= pServer
->next
)
1719 if (hszService
== pServer
->hszService
)
1724 TRACE("Service name missing\n");
1728 /* ================================================================
1730 * Conversation management
1732 * ================================================================ */
1734 /******************************************************************
1739 WDML_CONV
* WDML_AddConv(WDML_INSTANCE
* pInstance
, WDML_SIDE side
,
1740 HSZ hszService
, HSZ hszTopic
, HWND hwndClient
, HWND hwndServer
)
1744 /* no converstation yet, add it */
1745 pConv
= HeapAlloc(GetProcessHeap(), 0, sizeof(WDML_CONV
));
1746 if (!pConv
) return NULL
;
1748 pConv
->instance
= pInstance
;
1749 WDML_IncHSZ(pInstance
, pConv
->hszService
= hszService
);
1750 WDML_IncHSZ(pInstance
, pConv
->hszTopic
= hszTopic
);
1751 pConv
->magic
= WDML_CONV_MAGIC
;
1752 pConv
->hwndServer
= hwndServer
;
1753 pConv
->hwndClient
= hwndClient
;
1754 pConv
->transactions
= NULL
;
1756 pConv
->wStatus
= (side
== WDML_CLIENT_SIDE
) ? ST_CLIENT
: 0L;
1757 /* check if both side of the conversation are of the same instance */
1758 if (GetWindowThreadProcessId(hwndClient
, NULL
) == GetWindowThreadProcessId(hwndServer
, NULL
) &&
1759 WDML_GetInstanceFromWnd(hwndClient
) == WDML_GetInstanceFromWnd(hwndServer
))
1761 pConv
->wStatus
|= ST_ISSELF
;
1763 pConv
->wConvst
= XST_NULL
;
1765 pConv
->next
= pInstance
->convs
[side
];
1766 pInstance
->convs
[side
] = pConv
;
1771 /******************************************************************
1776 WDML_CONV
* WDML_FindConv(WDML_INSTANCE
* pInstance
, WDML_SIDE side
,
1777 HSZ hszService
, HSZ hszTopic
)
1779 WDML_CONV
* pCurrent
= NULL
;
1781 for (pCurrent
= pInstance
->convs
[side
]; pCurrent
!= NULL
; pCurrent
= pCurrent
->next
)
1783 if (DdeCmpStringHandles(pCurrent
->hszService
, hszService
) == 0 &&
1784 DdeCmpStringHandles(pCurrent
->hszTopic
, hszTopic
) == 0)
1793 /******************************************************************
1798 void WDML_RemoveConv(WDML_CONV
* pRef
, WDML_SIDE side
)
1800 WDML_CONV
* pPrev
= NULL
;
1801 WDML_CONV
* pCurrent
;
1803 WDML_XACT
* pXActNext
;
1809 /* remove any pending transaction */
1810 for (pXAct
= pRef
->transactions
; pXAct
!= NULL
; pXAct
= pXActNext
)
1812 pXActNext
= pXAct
->next
;
1813 WDML_FreeTransaction(pRef
->instance
, pXAct
, TRUE
);
1816 WDML_RemoveAllLinks(pRef
->instance
, pRef
, side
);
1818 /* FIXME: should we keep the window around ? it seems so (at least on client side
1819 * to let QueryConvInfo work after conv termination, but also to implement
1822 /* destroy conversation window, but first remove pConv from hWnd.
1823 * this would help the wndProc do appropriate handling upon a WM_DESTROY message
1825 hWnd
= (side
== WDML_CLIENT_SIDE
) ? pRef
->hwndClient
: pRef
->hwndServer
;
1826 SetWindowLongPtrW(hWnd
, GWL_WDML_CONVERSATION
, 0);
1828 DestroyWindow((side
== WDML_CLIENT_SIDE
) ? pRef
->hwndClient
: pRef
->hwndServer
);
1830 WDML_DecHSZ(pRef
->instance
, pRef
->hszService
);
1831 WDML_DecHSZ(pRef
->instance
, pRef
->hszTopic
);
1833 for (pCurrent
= pRef
->instance
->convs
[side
]; pCurrent
!= NULL
; pCurrent
= (pPrev
= pCurrent
)->next
)
1835 if (pCurrent
== pRef
)
1837 if (pCurrent
== pRef
->instance
->convs
[side
])
1839 pRef
->instance
->convs
[side
] = pCurrent
->next
;
1843 pPrev
->next
= pCurrent
->next
;
1845 pCurrent
->magic
= 0;
1846 HeapFree(GetProcessHeap(), 0, pCurrent
);
1852 /******************************************************************
1853 * WDML_EnableCallback
1855 static BOOL
WDML_EnableCallback(WDML_CONV
*pConv
, UINT wCmd
)
1857 if (wCmd
== EC_DISABLE
)
1859 FIXME("EC_DISABLE is not implemented\n");
1863 if (wCmd
== EC_QUERYWAITING
)
1864 return pConv
->transactions
? TRUE
: FALSE
;
1866 if (wCmd
!= EC_ENABLEALL
&& wCmd
!= EC_ENABLEONE
)
1868 FIXME("Unknown command code %04x\n", wCmd
);
1872 while (pConv
->transactions
)
1874 WDML_XACT
*pXAct
= pConv
->transactions
;
1875 WDML_UnQueueTransaction(pConv
, pXAct
);
1877 if (pConv
->wStatus
& ST_CLIENT
)
1879 /*WDML_ClientHandle(pConv, pXAct);*/
1880 FIXME("Client delayed transaction queue handling is not supported\n");
1883 WDML_ServerHandle(pConv
, pXAct
);
1885 WDML_FreeTransaction(pConv
->instance
, pXAct
, TRUE
);
1887 if (wCmd
== EC_ENABLEONE
) break;
1892 /*****************************************************************
1893 * DdeEnableCallback (USER32.@)
1895 BOOL WINAPI
DdeEnableCallback(DWORD idInst
, HCONV hConv
, UINT wCmd
)
1900 TRACE("(%d, %p, %04x)\n", idInst
, hConv
, wCmd
);
1902 EnterCriticalSection(&WDML_CritSect
);
1904 pConv
= WDML_GetConv(hConv
, TRUE
);
1906 if (pConv
&& pConv
->instance
->instanceID
== idInst
)
1907 ret
= WDML_EnableCallback(pConv
, wCmd
);
1909 LeaveCriticalSection(&WDML_CritSect
);
1913 /******************************************************************
1918 WDML_CONV
* WDML_GetConv(HCONV hConv
, BOOL checkConnected
)
1920 WDML_CONV
* pConv
= (WDML_CONV
*)hConv
;
1922 /* FIXME: should do better checking */
1923 if (pConv
== NULL
|| pConv
->magic
!= WDML_CONV_MAGIC
) return NULL
;
1925 if (checkConnected
&& !(pConv
->wStatus
& ST_CONNECTED
))
1927 FIXME("found conv but ain't connected\n");
1930 if (!pConv
->instance
|| GetCurrentThreadId() != pConv
->instance
->threadID
)
1932 FIXME("wrong thread ID\n");
1939 /******************************************************************
1940 * WDML_GetConvFromWnd
1944 WDML_CONV
* WDML_GetConvFromWnd(HWND hWnd
)
1946 return (WDML_CONV
*)GetWindowLongPtrW(hWnd
, GWL_WDML_CONVERSATION
);
1949 /******************************************************************
1954 BOOL
WDML_PostAck(WDML_CONV
* pConv
, WDML_SIDE side
, WORD appRetCode
,
1955 BOOL fBusy
, BOOL fAck
, UINT pmt
, LPARAM lParam
, UINT oldMsg
)
1960 if (side
== WDML_SERVER_SIDE
)
1962 from
= pConv
->hwndServer
;
1963 to
= pConv
->hwndClient
;
1967 to
= pConv
->hwndServer
;
1968 from
= pConv
->hwndClient
;
1971 ddeAck
.bAppReturnCode
= appRetCode
;
1972 ddeAck
.reserved
= 0;
1973 ddeAck
.fBusy
= fBusy
;
1976 TRACE("Posting a %s ack\n", ddeAck
.fAck
? "positive" : "negative");
1978 lParam
= (lParam
) ? ReuseDDElParam(lParam
, oldMsg
, WM_DDE_ACK
, *(WORD
*)&ddeAck
, pmt
) :
1979 PackDDElParam(WM_DDE_ACK
, *(WORD
*)&ddeAck
, pmt
);
1980 if (!PostMessageW(to
, WM_DDE_ACK
, (WPARAM
)from
, lParam
))
1982 pConv
->wStatus
&= ~ST_CONNECTED
;
1983 FreeDDElParam(WM_DDE_ACK
, lParam
);
1989 /*****************************************************************
1990 * DdeSetUserHandle (USER32.@)
1992 BOOL WINAPI
DdeSetUserHandle(HCONV hConv
, DWORD id
, DWORD hUser
)
1997 TRACE("(%p,%x,%x)\n", hConv
, id
, hUser
);
1999 EnterCriticalSection(&WDML_CritSect
);
2001 pConv
= WDML_GetConv(hConv
, FALSE
);
2009 pConv
->hUser
= hUser
;
2015 pXAct
= WDML_FindTransaction(pConv
, id
);
2018 pXAct
->hUser
= hUser
;
2022 pConv
->instance
->lastError
= DMLERR_UNFOUND_QUEUE_ID
;
2027 LeaveCriticalSection(&WDML_CritSect
);
2031 /******************************************************************
2032 * WDML_GetLocalConvInfo
2036 static BOOL
WDML_GetLocalConvInfo(WDML_CONV
* pConv
, CONVINFO
* ci
, DWORD id
)
2042 ci
->hConvPartner
= (pConv
->wStatus
& ST_ISLOCAL
) ? (HCONV
)((ULONG_PTR
)pConv
| 1) : 0;
2043 ci
->hszSvcPartner
= pConv
->hszService
;
2044 ci
->hszServiceReq
= pConv
->hszService
; /* FIXME: they shouldn't be the same, should they ? */
2045 ci
->hszTopic
= pConv
->hszTopic
;
2046 ci
->wStatus
= pConv
->wStatus
;
2048 side
= (pConv
->wStatus
& ST_CLIENT
) ? WDML_CLIENT_SIDE
: WDML_SERVER_SIDE
;
2050 for (pLink
= pConv
->instance
->links
[side
]; pLink
!= NULL
; pLink
= pLink
->next
)
2052 if (pLink
->hConv
== (HCONV
)pConv
)
2054 ci
->wStatus
|= ST_ADVISE
;
2059 /* FIXME: non handled status flags:
2065 ci
->wConvst
= pConv
->wConvst
; /* FIXME */
2067 ci
->wLastError
= 0; /* FIXME: note it's not the instance last error */
2069 ci
->ConvCtxt
= pConv
->convContext
;
2070 if (ci
->wStatus
& ST_CLIENT
)
2072 ci
->hwnd
= pConv
->hwndClient
;
2073 ci
->hwndPartner
= pConv
->hwndServer
;
2077 ci
->hwnd
= pConv
->hwndServer
;
2078 ci
->hwndPartner
= pConv
->hwndClient
;
2082 ci
->hUser
= pConv
->hUser
;
2091 pXAct
= WDML_FindTransaction(pConv
, id
);
2094 ci
->hUser
= pXAct
->hUser
;
2095 ci
->hszItem
= pXAct
->hszItem
;
2096 ci
->wFmt
= pXAct
->wFmt
;
2097 ci
->wType
= pXAct
->wType
;
2102 pConv
->instance
->lastError
= DMLERR_UNFOUND_QUEUE_ID
;
2108 /******************************************************************
2109 * DdeQueryConvInfo (USER32.@)
2111 * FIXME: Set last DDE error on failure.
2113 UINT WINAPI
DdeQueryConvInfo(HCONV hConv
, DWORD id
, PCONVINFO lpConvInfo
)
2115 UINT ret
= lpConvInfo
->cb
;
2119 TRACE("(%p,%x,%p)\n", hConv
, id
, lpConvInfo
);
2123 FIXME("hConv is NULL\n");
2127 EnterCriticalSection(&WDML_CritSect
);
2129 pConv
= WDML_GetConv(hConv
, FALSE
);
2132 if (!WDML_GetLocalConvInfo(pConv
, &ci
, id
))
2137 if ((ULONG_PTR
)hConv
& 1)
2139 pConv
= WDML_GetConv((HCONV
)((ULONG_PTR
)hConv
& ~1), FALSE
);
2141 FIXME("Request on remote conversation information is not implemented yet\n");
2145 LeaveCriticalSection(&WDML_CritSect
);
2147 memcpy(lpConvInfo
, &ci
, min((size_t)lpConvInfo
->cb
, sizeof(ci
)));
2151 /* ================================================================
2153 * Link (hot & warm) management
2155 * ================================================================ */
2157 /******************************************************************
2162 void WDML_AddLink(WDML_INSTANCE
* pInstance
, HCONV hConv
, WDML_SIDE side
,
2163 UINT wType
, HSZ hszItem
, UINT wFmt
)
2167 pLink
= HeapAlloc(GetProcessHeap(), 0, sizeof(WDML_LINK
));
2174 pLink
->hConv
= hConv
;
2175 pLink
->transactionType
= wType
;
2176 WDML_IncHSZ(pInstance
, pLink
->hszItem
= hszItem
);
2178 pLink
->next
= pInstance
->links
[side
];
2179 pInstance
->links
[side
] = pLink
;
2182 /******************************************************************
2187 void WDML_RemoveLink(WDML_INSTANCE
* pInstance
, HCONV hConv
, WDML_SIDE side
,
2188 HSZ hszItem
, UINT uFmt
)
2190 WDML_LINK
* pPrev
= NULL
;
2191 WDML_LINK
* pCurrent
= NULL
;
2193 pCurrent
= pInstance
->links
[side
];
2195 while (pCurrent
!= NULL
)
2197 if (pCurrent
->hConv
== hConv
&&
2198 DdeCmpStringHandles(pCurrent
->hszItem
, hszItem
) == 0 &&
2199 pCurrent
->uFmt
== uFmt
)
2201 if (pCurrent
== pInstance
->links
[side
])
2203 pInstance
->links
[side
] = pCurrent
->next
;
2207 pPrev
->next
= pCurrent
->next
;
2210 WDML_DecHSZ(pInstance
, pCurrent
->hszItem
);
2211 HeapFree(GetProcessHeap(), 0, pCurrent
);
2216 pCurrent
= pCurrent
->next
;
2220 /* this function is called to remove all links related to the conv.
2221 It should be called from both client and server when terminating
2224 /******************************************************************
2225 * WDML_RemoveAllLinks
2229 void WDML_RemoveAllLinks(WDML_INSTANCE
* pInstance
, WDML_CONV
* pConv
, WDML_SIDE side
)
2231 WDML_LINK
* pPrev
= NULL
;
2232 WDML_LINK
* pCurrent
= NULL
;
2233 WDML_LINK
* pNext
= NULL
;
2235 pCurrent
= pInstance
->links
[side
];
2237 while (pCurrent
!= NULL
)
2239 if (pCurrent
->hConv
== (HCONV
)pConv
)
2241 if (pCurrent
== pInstance
->links
[side
])
2243 pInstance
->links
[side
] = pCurrent
->next
;
2244 pNext
= pCurrent
->next
;
2248 pPrev
->next
= pCurrent
->next
;
2249 pNext
= pCurrent
->next
;
2252 WDML_DecHSZ(pInstance
, pCurrent
->hszItem
);
2254 HeapFree(GetProcessHeap(), 0, pCurrent
);
2261 pCurrent
= pCurrent
->next
;
2270 /******************************************************************
2275 WDML_LINK
* WDML_FindLink(WDML_INSTANCE
* pInstance
, HCONV hConv
, WDML_SIDE side
,
2276 HSZ hszItem
, BOOL use_fmt
, UINT uFmt
)
2278 WDML_LINK
* pCurrent
= NULL
;
2280 for (pCurrent
= pInstance
->links
[side
]; pCurrent
!= NULL
; pCurrent
= pCurrent
->next
)
2282 /* we don't need to check for transaction type as it can be altered */
2284 if (pCurrent
->hConv
== hConv
&&
2285 DdeCmpStringHandles(pCurrent
->hszItem
, hszItem
) == 0 &&
2286 (!use_fmt
|| pCurrent
->uFmt
== uFmt
))
2296 /* ================================================================
2298 * Transaction management
2300 * ================================================================ */
2302 /******************************************************************
2303 * WDML_AllocTransaction
2305 * Alloc a transaction structure for handling the message ddeMsg
2307 WDML_XACT
* WDML_AllocTransaction(WDML_INSTANCE
* pInstance
, UINT ddeMsg
,
2308 UINT wFmt
, HSZ hszItem
)
2311 static WORD tid
= 1; /* FIXME: wrap around */
2313 pXAct
= HeapAlloc(GetProcessHeap(), 0, sizeof(WDML_XACT
));
2316 pInstance
->lastError
= DMLERR_MEMORY_ERROR
;
2320 pXAct
->xActID
= tid
++;
2321 pXAct
->ddeMsg
= ddeMsg
;
2322 pXAct
->hDdeData
= 0;
2327 if ((pXAct
->hszItem
= hszItem
)) WDML_IncHSZ(pInstance
, pXAct
->hszItem
);
2335 /******************************************************************
2336 * WDML_QueueTransaction
2338 * Adds a transaction to the list of transaction
2340 void WDML_QueueTransaction(WDML_CONV
* pConv
, WDML_XACT
* pXAct
)
2344 /* advance to last in queue */
2345 for (pt
= &pConv
->transactions
; *pt
!= NULL
; pt
= &(*pt
)->next
);
2349 /******************************************************************
2350 * WDML_UnQueueTransaction
2354 BOOL
WDML_UnQueueTransaction(WDML_CONV
* pConv
, WDML_XACT
* pXAct
)
2358 for (pt
= &pConv
->transactions
; *pt
; pt
= &(*pt
)->next
)
2369 /******************************************************************
2370 * WDML_FreeTransaction
2374 void WDML_FreeTransaction(WDML_INSTANCE
* pInstance
, WDML_XACT
* pXAct
, BOOL doFreePmt
)
2376 /* free pmt(s) in pXAct too. check against one for not deleting TRUE return values */
2377 if (doFreePmt
&& (ULONG_PTR
)pXAct
->hMem
> 1)
2379 GlobalFree(pXAct
->hMem
);
2381 if (pXAct
->hszItem
) WDML_DecHSZ(pInstance
, pXAct
->hszItem
);
2383 HeapFree(GetProcessHeap(), 0, pXAct
);
2386 /******************************************************************
2387 * WDML_FindTransaction
2391 WDML_XACT
* WDML_FindTransaction(WDML_CONV
* pConv
, DWORD tid
)
2396 for (pXAct
= pConv
->transactions
; pXAct
; pXAct
= pXAct
->next
)
2398 if (pXAct
->xActID
== tid
)
2404 /* ================================================================
2406 * Information broadcast across DDEML implementations
2408 * ================================================================ */
2410 struct tagWDML_BroadcastPmt
2418 /******************************************************************
2419 * WDML_BroadcastEnumProc
2423 static BOOL CALLBACK
WDML_BroadcastEnumProc(HWND hWnd
, LPARAM lParam
)
2425 struct tagWDML_BroadcastPmt
* s
= (struct tagWDML_BroadcastPmt
*)lParam
;
2428 if (GetClassNameW(hWnd
, buffer
, 128) > 0 &&
2429 lstrcmpiW(buffer
, s
->clsName
) == 0)
2431 PostMessageW(hWnd
, s
->uMsg
, s
->wParam
, s
->lParam
);
2436 /******************************************************************
2437 * WDML_BroadcastDDEWindows
2441 void WDML_BroadcastDDEWindows(LPCWSTR clsName
, UINT uMsg
, WPARAM wParam
, LPARAM lParam
)
2443 struct tagWDML_BroadcastPmt s
;
2445 s
.clsName
= clsName
;
2449 EnumWindows(WDML_BroadcastEnumProc
, (LPARAM
)&s
);