ReactOS  0.4.14-dev-614-gbfd8a84
message.c
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1 /*
2  * COPYRIGHT: See COPYING in the top level directory
3  * PROJECT: ReactOS Win32k subsystem
4  * PURPOSE: Messages
5  * FILE: win32ss/user/ntuser/message.c
6  * PROGRAMER: Casper S. Hornstrup (chorns@users.sourceforge.net)
7  */
8 
9 #include <win32k.h>
10 
11 #include <dde.h>
12 
13 DBG_DEFAULT_CHANNEL(UserMsg);
14 
15 #define PM_BADMSGFLAGS ~((QS_RAWINPUT << 16)|PM_QS_SENDMESSAGE|PM_QS_PAINT|PM_QS_POSTMESSAGE|PM_QS_INPUT|PM_NOYIELD|PM_REMOVE)
16 
17 /* FUNCTIONS *****************************************************************/
18 
19 NTSTATUS FASTCALL
20 IntInitMessageImpl(VOID)
21 {
22  return STATUS_SUCCESS;
23 }
24 
25 NTSTATUS FASTCALL
26 IntCleanupMessageImpl(VOID)
27 {
28  return STATUS_SUCCESS;
29 }
30 
31 /* From wine: */
32 /* flag for messages that contain pointers */
33 /* 32 messages per entry, messages 0..31 map to bits 0..31 */
34 
35 #define SET(msg) (1 << ((msg) & 31))
36 
37 static const unsigned int message_pointer_flags[] =
38 {
39  /* 0x00 - 0x1f */
40  SET(WM_CREATE) | SET(WM_SETTEXT) | SET(WM_GETTEXT) |
41  SET(WM_WININICHANGE) | SET(WM_DEVMODECHANGE),
42  /* 0x20 - 0x3f */
43  SET(WM_GETMINMAXINFO) | SET(WM_DRAWITEM) | SET(WM_MEASUREITEM) | SET(WM_DELETEITEM) |
44  SET(WM_COMPAREITEM),
45  /* 0x40 - 0x5f */
46  SET(WM_WINDOWPOSCHANGING) | SET(WM_WINDOWPOSCHANGED) | SET(WM_COPYDATA) | SET(WM_COPYGLOBALDATA) | SET(WM_HELP),
47  /* 0x60 - 0x7f */
48  SET(WM_STYLECHANGING) | SET(WM_STYLECHANGED),
49  /* 0x80 - 0x9f */
50  SET(WM_NCCREATE) | SET(WM_NCCALCSIZE) | SET(WM_GETDLGCODE),
51  /* 0xa0 - 0xbf */
52  SET(EM_GETSEL) | SET(EM_GETRECT) | SET(EM_SETRECT) | SET(EM_SETRECTNP),
53  /* 0xc0 - 0xdf */
54  SET(EM_REPLACESEL) | SET(EM_GETLINE) | SET(EM_SETTABSTOPS),
55  /* 0xe0 - 0xff */
56  SET(SBM_GETRANGE) | SET(SBM_SETSCROLLINFO) | SET(SBM_GETSCROLLINFO) | SET(SBM_GETSCROLLBARINFO),
57  /* 0x100 - 0x11f */
58  0,
59  /* 0x120 - 0x13f */
60  0,
61  /* 0x140 - 0x15f */
62  SET(CB_GETEDITSEL) | SET(CB_ADDSTRING) | SET(CB_DIR) | SET(CB_GETLBTEXT) |
63  SET(CB_INSERTSTRING) | SET(CB_FINDSTRING) | SET(CB_SELECTSTRING) |
64  SET(CB_GETDROPPEDCONTROLRECT) | SET(CB_FINDSTRINGEXACT),
65  /* 0x160 - 0x17f */
66  0,
67  /* 0x180 - 0x19f */
68  SET(LB_ADDSTRING) | SET(LB_INSERTSTRING) | SET(LB_GETTEXT) | SET(LB_SELECTSTRING) |
69  SET(LB_DIR) | SET(LB_FINDSTRING) |
70  SET(LB_GETSELITEMS) | SET(LB_SETTABSTOPS) | SET(LB_ADDFILE) | SET(LB_GETITEMRECT),
71  /* 0x1a0 - 0x1bf */
72  SET(LB_FINDSTRINGEXACT),
73  /* 0x1c0 - 0x1df */
74  0,
75  /* 0x1e0 - 0x1ff */
76  0,
77  /* 0x200 - 0x21f */
78  SET(WM_NEXTMENU) | SET(WM_SIZING) | SET(WM_MOVING) | SET(WM_DEVICECHANGE),
79  /* 0x220 - 0x23f */
80  SET(WM_MDICREATE) | SET(WM_MDIGETACTIVE) | SET(WM_DROPOBJECT) |
81  SET(WM_QUERYDROPOBJECT) | SET(WM_DRAGLOOP) | SET(WM_DRAGSELECT) | SET(WM_DRAGMOVE),
82  /* 0x240 - 0x25f */
83  0,
84  /* 0x260 - 0x27f */
85  0,
86  /* 0x280 - 0x29f */
87  0,
88  /* 0x2a0 - 0x2bf */
89  0,
90  /* 0x2c0 - 0x2df */
91  0,
92  /* 0x2e0 - 0x2ff */
93  0,
94  /* 0x300 - 0x31f */
95  SET(WM_ASKCBFORMATNAME)
96 };
97 
98 /* check whether a given message type includes pointers */
99 static inline int is_pointer_message( UINT message )
100 {
101  if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
102  return (message_pointer_flags[message / 32] & SET(message)) != 0;
103 }
104 #undef SET
105 
106 #define MMS_SIZE_WPARAM -1
107 #define MMS_SIZE_WPARAMWCHAR -2
108 #define MMS_SIZE_LPARAMSZ -3
109 #define MMS_SIZE_SPECIAL -4
110 #define MMS_FLAG_READ 0x01
111 #define MMS_FLAG_WRITE 0x02
112 #define MMS_FLAG_READWRITE (MMS_FLAG_READ | MMS_FLAG_WRITE)
113 typedef struct tagMSGMEMORY
114 {
115  UINT Message;
116  UINT Size;
117  INT Flags;
118 }
119 MSGMEMORY, *PMSGMEMORY;
120 
121 static MSGMEMORY g_MsgMemory[] =
122 {
123  { WM_CREATE, MMS_SIZE_SPECIAL, MMS_FLAG_READWRITE },
124  { WM_GETMINMAXINFO, sizeof(MINMAXINFO), MMS_FLAG_READWRITE },
125  { WM_GETTEXT, MMS_SIZE_WPARAMWCHAR, MMS_FLAG_WRITE },
126  { WM_NCCALCSIZE, MMS_SIZE_SPECIAL, MMS_FLAG_READWRITE },
127  { WM_NCCREATE, MMS_SIZE_SPECIAL, MMS_FLAG_READWRITE },
128  { WM_SETTEXT, MMS_SIZE_LPARAMSZ, MMS_FLAG_READ },
129  { WM_STYLECHANGED, sizeof(STYLESTRUCT), MMS_FLAG_READ },
130  { WM_STYLECHANGING, sizeof(STYLESTRUCT), MMS_FLAG_READWRITE },
131  { WM_SETTINGCHANGE, MMS_SIZE_LPARAMSZ, MMS_FLAG_READ },
132  { WM_COPYDATA, MMS_SIZE_SPECIAL, MMS_FLAG_READ },
133  { WM_COPYGLOBALDATA, MMS_SIZE_WPARAM, MMS_FLAG_READ },
134  { WM_WINDOWPOSCHANGED, sizeof(WINDOWPOS), MMS_FLAG_READWRITE },
135  { WM_WINDOWPOSCHANGING, sizeof(WINDOWPOS), MMS_FLAG_READWRITE },
136  { WM_SIZING, sizeof(RECT), MMS_FLAG_READWRITE },
137  { WM_MOVING, sizeof(RECT), MMS_FLAG_READWRITE },
138  { WM_MEASUREITEM, sizeof(MEASUREITEMSTRUCT), MMS_FLAG_READWRITE },
139  { WM_DRAWITEM, sizeof(DRAWITEMSTRUCT), MMS_FLAG_READWRITE },
140  { WM_HELP, sizeof(HELPINFO), MMS_FLAG_READWRITE },
141  { WM_NEXTMENU, sizeof(MDINEXTMENU), MMS_FLAG_READWRITE },
142 };
143 
144 static PMSGMEMORY FASTCALL
145 FindMsgMemory(UINT Msg)
146 {
147  PMSGMEMORY MsgMemoryEntry;
148 
149  /* See if this message type is present in the table */
150  for (MsgMemoryEntry = g_MsgMemory;
151  MsgMemoryEntry < g_MsgMemory + sizeof(g_MsgMemory) / sizeof(MSGMEMORY);
152  MsgMemoryEntry++)
153  {
154  if (Msg == MsgMemoryEntry->Message)
155  {
156  return MsgMemoryEntry;
157  }
158  }
159 
160  return NULL;
161 }
162 
163 static UINT FASTCALL
164 MsgMemorySize(PMSGMEMORY MsgMemoryEntry, WPARAM wParam, LPARAM lParam)
165 {
166  CREATESTRUCTW *Cs;
167  PLARGE_STRING WindowName;
168  PUNICODE_STRING ClassName;
169  UINT Size = 0;
170 
171  _SEH2_TRY
172  {
173  if (MMS_SIZE_WPARAM == MsgMemoryEntry->Size)
174  {
175  Size = (UINT)wParam;
176  }
177  else if (MMS_SIZE_WPARAMWCHAR == MsgMemoryEntry->Size)
178  {
179  Size = (UINT) (wParam * sizeof(WCHAR));
180  }
181  else if (MMS_SIZE_LPARAMSZ == MsgMemoryEntry->Size)
182  {
183  // WM_SETTEXT and WM_SETTINGCHANGE can be null!
184  if (!lParam)
185  {
186  TRACE("lParam is NULL!\n");
187  Size = 0;
188  }
189  else
190  Size = (UINT) ((wcslen((PWSTR) lParam) + 1) * sizeof(WCHAR));
191  }
192  else if (MMS_SIZE_SPECIAL == MsgMemoryEntry->Size)
193  {
194  switch(MsgMemoryEntry->Message)
195  {
196  case WM_CREATE:
197  case WM_NCCREATE:
198  Cs = (CREATESTRUCTW *) lParam;
199  WindowName = (PLARGE_STRING) Cs->lpszName;
200  ClassName = (PUNICODE_STRING) Cs->lpszClass;
201  Size = sizeof(CREATESTRUCTW) + WindowName->Length + sizeof(WCHAR);
202  if (IS_ATOM(ClassName->Buffer))
203  {
204  Size += sizeof(WCHAR) + sizeof(ATOM);
205  }
206  else
207  {
208  Size += sizeof(WCHAR) + ClassName->Length + sizeof(WCHAR);
209  }
210  break;
211 
212  case WM_NCCALCSIZE:
213  Size = wParam ? sizeof(NCCALCSIZE_PARAMS) + sizeof(WINDOWPOS) : sizeof(RECT);
214  break;
215 
216  case WM_COPYDATA:
217  {
218  COPYDATASTRUCT *cds = (COPYDATASTRUCT *)lParam;
219  Size = sizeof(COPYDATASTRUCT) + cds->cbData;
220  }
221  break;
222 
223  default:
224  ASSERT(FALSE);
225  Size = 0;
226  break;
227  }
228  }
229  else
230  {
231  Size = MsgMemoryEntry->Size;
232  }
233  }
234  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
235  {
236  ERR("Exception caught in MsgMemorySize()! Status: 0x%x\n", _SEH2_GetExceptionCode());
237  Size = 0;
238  }
239  _SEH2_END;
240  return Size;
241 }
242 
243 UINT lParamMemorySize(UINT Msg, WPARAM wParam, LPARAM lParam)
244 {
245  PMSGMEMORY MsgMemoryEntry = FindMsgMemory(Msg);
246  if(MsgMemoryEntry == NULL) return 0;
247  return MsgMemorySize(MsgMemoryEntry, wParam, lParam);
248 }
249 
250 static NTSTATUS
251 PackParam(LPARAM *lParamPacked, UINT Msg, WPARAM wParam, LPARAM lParam, BOOL NonPagedPoolNeeded)
252 {
253  NCCALCSIZE_PARAMS *UnpackedNcCalcsize;
254  NCCALCSIZE_PARAMS *PackedNcCalcsize;
255  CREATESTRUCTW *UnpackedCs;
256  CREATESTRUCTW *PackedCs;
257  PLARGE_STRING WindowName;
258  PUNICODE_STRING ClassName;
259  POOL_TYPE PoolType;
260  UINT Size;
261  PCHAR CsData;
262 
263  *lParamPacked = lParam;
264 
265  if (NonPagedPoolNeeded)
266  PoolType = NonPagedPool;
267  else
268  PoolType = PagedPool;
269 
270  if (WM_NCCALCSIZE == Msg && wParam)
271  {
272 
273  UnpackedNcCalcsize = (NCCALCSIZE_PARAMS *) lParam;
274  PackedNcCalcsize = ExAllocatePoolWithTag(PoolType,
275  sizeof(NCCALCSIZE_PARAMS) + sizeof(WINDOWPOS),
276  TAG_MSG);
277 
278  if (NULL == PackedNcCalcsize)
279  {
280  ERR("Not enough memory to pack lParam\n");
281  return STATUS_NO_MEMORY;
282  }
283  RtlCopyMemory(PackedNcCalcsize, UnpackedNcCalcsize, sizeof(NCCALCSIZE_PARAMS));
284  PackedNcCalcsize->lppos = (PWINDOWPOS) (PackedNcCalcsize + 1);
285  RtlCopyMemory(PackedNcCalcsize->lppos, UnpackedNcCalcsize->lppos, sizeof(WINDOWPOS));
286  *lParamPacked = (LPARAM) PackedNcCalcsize;
287  }
288  else if (WM_CREATE == Msg || WM_NCCREATE == Msg)
289  {
290  UnpackedCs = (CREATESTRUCTW *) lParam;
291  WindowName = (PLARGE_STRING) UnpackedCs->lpszName;
292  ClassName = (PUNICODE_STRING) UnpackedCs->lpszClass;
293  Size = sizeof(CREATESTRUCTW) + WindowName->Length + sizeof(WCHAR);
294  if (IS_ATOM(ClassName->Buffer))
295  {
296  Size += sizeof(WCHAR) + sizeof(ATOM);
297  }
298  else
299  {
300  Size += sizeof(WCHAR) + ClassName->Length + sizeof(WCHAR);
301  }
302  PackedCs = ExAllocatePoolWithTag(PoolType, Size, TAG_MSG);
303  if (NULL == PackedCs)
304  {
305  ERR("Not enough memory to pack lParam\n");
306  return STATUS_NO_MEMORY;
307  }
308  RtlCopyMemory(PackedCs, UnpackedCs, sizeof(CREATESTRUCTW));
309  CsData = (PCHAR) (PackedCs + 1);
310  PackedCs->lpszName = (LPCWSTR) (CsData - (PCHAR) PackedCs);
311  RtlCopyMemory(CsData, WindowName->Buffer, WindowName->Length);
312  CsData += WindowName->Length;
313  *((WCHAR *) CsData) = L'\0';
314  CsData += sizeof(WCHAR);
315  PackedCs->lpszClass = (LPCWSTR) (CsData - (PCHAR) PackedCs);
316  if (IS_ATOM(ClassName->Buffer))
317  {
318  *((WCHAR *) CsData) = L'A';
319  CsData += sizeof(WCHAR);
320  *((ATOM *) CsData) = (ATOM)(DWORD_PTR) ClassName->Buffer;
321  CsData += sizeof(ATOM);
322  }
323  else
324  {
325  NT_ASSERT(ClassName->Buffer != NULL);
326  *((WCHAR *) CsData) = L'S';
327  CsData += sizeof(WCHAR);
328  RtlCopyMemory(CsData, ClassName->Buffer, ClassName->Length);
329  CsData += ClassName->Length;
330  *((WCHAR *) CsData) = L'\0';
331  CsData += sizeof(WCHAR);
332  }
333  ASSERT(CsData == (PCHAR) PackedCs + Size);
334  *lParamPacked = (LPARAM) PackedCs;
335  }
336  else if (PoolType == NonPagedPool)
337  {
338  PMSGMEMORY MsgMemoryEntry;
339  PVOID PackedData;
340  SIZE_T size;
341 
342  MsgMemoryEntry = FindMsgMemory(Msg);
343 
344  if (!MsgMemoryEntry)
345  {
346  /* Keep previous behavior */
347  return STATUS_SUCCESS;
348  }
349  size = MsgMemorySize(MsgMemoryEntry, wParam, lParam);
350  if (!size)
351  {
352  ERR("No size for lParamPacked\n");
353  return STATUS_SUCCESS;
354  }
355  PackedData = ExAllocatePoolWithTag(NonPagedPool, size, TAG_MSG);
356  if (PackedData == NULL)
357  {
358  ERR("Not enough memory to pack lParam\n");
359  return STATUS_NO_MEMORY;
360  }
361  RtlCopyMemory(PackedData, (PVOID)lParam, MsgMemorySize(MsgMemoryEntry, wParam, lParam));
362  *lParamPacked = (LPARAM)PackedData;
363  }
364 
365  return STATUS_SUCCESS;
366 }
367 
368 static NTSTATUS
369 UnpackParam(LPARAM lParamPacked, UINT Msg, WPARAM wParam, LPARAM lParam, BOOL NonPagedPoolUsed)
370 {
371  NCCALCSIZE_PARAMS *UnpackedParams;
372  NCCALCSIZE_PARAMS *PackedParams;
373  PWINDOWPOS UnpackedWindowPos;
374 
375  if (lParamPacked == lParam)
376  {
377  return STATUS_SUCCESS;
378  }
379 
380  if (WM_NCCALCSIZE == Msg && wParam)
381  {
382  PackedParams = (NCCALCSIZE_PARAMS *) lParamPacked;
383  UnpackedParams = (NCCALCSIZE_PARAMS *) lParam;
384  UnpackedWindowPos = UnpackedParams->lppos;
385  RtlCopyMemory(UnpackedParams, PackedParams, sizeof(NCCALCSIZE_PARAMS));
386  UnpackedParams->lppos = UnpackedWindowPos;
387  RtlCopyMemory(UnpackedWindowPos, PackedParams + 1, sizeof(WINDOWPOS));
388  ExFreePool((PVOID) lParamPacked);
389 
390  return STATUS_SUCCESS;
391  }
392  else if (WM_CREATE == Msg || WM_NCCREATE == Msg)
393  {
394  ExFreePool((PVOID) lParamPacked);
395 
396  return STATUS_SUCCESS;
397  }
398  else if (NonPagedPoolUsed)
399  {
400  PMSGMEMORY MsgMemoryEntry;
401  MsgMemoryEntry = FindMsgMemory(Msg);
402  ASSERT(MsgMemoryEntry);
403 
404  if (MsgMemoryEntry->Flags == MMS_FLAG_READWRITE)
405  {
406  //RtlCopyMemory((PVOID)lParam, (PVOID)lParamPacked, MsgMemoryEntry->Size);
407  }
408  ExFreePool((PVOID) lParamPacked);
409  return STATUS_SUCCESS;
410  }
411 
412  ASSERT(FALSE);
413 
414  return STATUS_INVALID_PARAMETER;
415 }
416 
417 static NTSTATUS FASTCALL
418 CopyMsgToKernelMem(MSG *KernelModeMsg, MSG *UserModeMsg, PMSGMEMORY MsgMemoryEntry)
419 {
420  NTSTATUS Status;
421 
422  PVOID KernelMem;
423  UINT Size;
424 
425  *KernelModeMsg = *UserModeMsg;
426 
427  /* See if this message type is present in the table */
428  if (NULL == MsgMemoryEntry)
429  {
430  /* Not present, no copying needed */
431  return STATUS_SUCCESS;
432  }
433 
434  /* Determine required size */
435  Size = MsgMemorySize(MsgMemoryEntry, UserModeMsg->wParam, UserModeMsg->lParam);
436 
437  if (0 != Size)
438  {
439  /* Allocate kernel mem */
440  KernelMem = ExAllocatePoolWithTag(PagedPool, Size, TAG_MSG);
441  if (NULL == KernelMem)
442  {
443  ERR("Not enough memory to copy message to kernel mem\n");
444  return STATUS_NO_MEMORY;
445  }
446  KernelModeMsg->lParam = (LPARAM) KernelMem;
447 
448  /* Copy data if required */
449  if (0 != (MsgMemoryEntry->Flags & MMS_FLAG_READ))
450  {
451  TRACE("Copy Message %u from usermode buffer\n", KernelModeMsg->message);
452  Status = MmCopyFromCaller(KernelMem, (PVOID) UserModeMsg->lParam, Size);
453  if (! NT_SUCCESS(Status))
454  {
455  ERR("Failed to copy message to kernel: invalid usermode lParam buffer\n");
456  ExFreePoolWithTag(KernelMem, TAG_MSG);
457  return Status;
458  }
459  }
460  else
461  {
462  /* Make sure we don't pass any secrets to usermode */
463  RtlZeroMemory(KernelMem, Size);
464  }
465  }
466  else
467  {
468  KernelModeMsg->lParam = 0;
469  }
470 
471  return STATUS_SUCCESS;
472 }
473 
474 static NTSTATUS FASTCALL
475 CopyMsgToUserMem(MSG *UserModeMsg, MSG *KernelModeMsg)
476 {
477  NTSTATUS Status;
478  PMSGMEMORY MsgMemoryEntry;
479  UINT Size;
480 
481  /* See if this message type is present in the table */
482  MsgMemoryEntry = FindMsgMemory(UserModeMsg->message);
483  if (NULL == MsgMemoryEntry)
484  {
485  /* Not present, no copying needed */
486  return STATUS_SUCCESS;
487  }
488 
489  /* Determine required size */
490  Size = MsgMemorySize(MsgMemoryEntry, UserModeMsg->wParam, UserModeMsg->lParam);
491 
492  if (0 != Size)
493  {
494  /* Copy data if required */
495  if (0 != (MsgMemoryEntry->Flags & MMS_FLAG_WRITE))
496  {
497  Status = MmCopyToCaller((PVOID) UserModeMsg->lParam, (PVOID) KernelModeMsg->lParam, Size);
498  if (! NT_SUCCESS(Status))
499  {
500  ERR("Failed to copy message from kernel: invalid usermode lParam buffer\n");
501  ExFreePool((PVOID) KernelModeMsg->lParam);
502  return Status;
503  }
504  }
505  ExFreePool((PVOID) KernelModeMsg->lParam);
506  }
507 
508  return STATUS_SUCCESS;
509 }
510 
511 //
512 // Wakeup any thread/process waiting on idle input.
513 //
514 VOID FASTCALL
515 IdlePing(VOID)
516 {
517  PPROCESSINFO ppi = PsGetCurrentProcessWin32Process();
518  PTHREADINFO pti;
519 
520  pti = PsGetCurrentThreadWin32Thread();
521 
522  if ( pti )
523  {
524  pti->pClientInfo->cSpins = 0; // Reset spins.
525 
526  if ( pti->pDeskInfo && pti == gptiForeground )
527  {
528  if ( pti->fsHooks & HOOKID_TO_FLAG(WH_FOREGROUNDIDLE) ||
529  pti->pDeskInfo->fsHooks & HOOKID_TO_FLAG(WH_FOREGROUNDIDLE) )
530  {
531  co_HOOK_CallHooks(WH_FOREGROUNDIDLE,HC_ACTION,0,0);
532  }
533  }
534  }
535 
536  TRACE("IdlePing ppi %p\n", ppi);
537  if ( ppi && ppi->InputIdleEvent )
538  {
539  TRACE("InputIdleEvent\n");
540  KeSetEvent( ppi->InputIdleEvent, IO_NO_INCREMENT, FALSE);
541  }
542 }
543 
544 VOID FASTCALL
545 IdlePong(VOID)
546 {
547  PPROCESSINFO ppi = PsGetCurrentProcessWin32Process();
548 
549  TRACE("IdlePong ppi %p\n", ppi);
550  if ( ppi && ppi->InputIdleEvent )
551  {
552  KeClearEvent(ppi->InputIdleEvent);
553  }
554 }
555 
556 static BOOL is_message_broadcastable(UINT msg)
557 {
558  return msg < WM_USER || msg >= 0xc000;
559 }
560 
561 UINT FASTCALL
562 GetWakeMask(UINT first, UINT last )
563 {
564  UINT mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
565 
566  if (first || last)
567  {
568  if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
569  if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
570  ((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
571  if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
572  if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
573  if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
574  }
575  else mask = QS_ALLINPUT;
576 
577  return mask;
578 }
579 
580 static VOID FASTCALL
581 IntCallWndProc( PWND Window, HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
582 {
583  BOOL SameThread = FALSE;
584  CWPSTRUCT CWP;
585 
586  if (Window->head.pti == ((PTHREADINFO)PsGetCurrentThreadWin32Thread()))
587  SameThread = TRUE;
588 
589  CWP.hwnd = hWnd;
590  CWP.message = Msg;
591  CWP.wParam = wParam;
592  CWP.lParam = lParam;
593  co_HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, SameThread, (LPARAM)&CWP );
594 }
595 
596 static VOID FASTCALL
597 IntCallWndProcRet ( PWND Window, HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, LRESULT *uResult)
598 {
599  BOOL SameThread = FALSE;
600  CWPRETSTRUCT CWPR;
601 
602  if (Window->head.pti == ((PTHREADINFO)PsGetCurrentThreadWin32Thread()))
603  SameThread = TRUE;
604 
605  CWPR.hwnd = hWnd;
606  CWPR.message = Msg;
607  CWPR.wParam = wParam;
608  CWPR.lParam = lParam;
609  CWPR.lResult = uResult ? (*uResult) : 0;
610  co_HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, SameThread, (LPARAM)&CWPR );
611 }
612 
613 static LRESULT handle_internal_message( PWND pWnd, UINT msg, WPARAM wparam, LPARAM lparam )
614 {
615  LRESULT lRes;
616 // USER_REFERENCE_ENTRY Ref;
617 // PTHREADINFO pti = PsGetCurrentThreadWin32Thread();
618 
619  if (!pWnd || UserIsDesktopWindow(pWnd) || UserIsMessageWindow(pWnd))
620  return 0;
621 
622  TRACE("Internal Event Msg 0x%x hWnd 0x%p\n", msg, pWnd->head.h);
623 
624  switch(msg)
625  {
626  case WM_ASYNC_SHOWWINDOW:
627  return co_WinPosShowWindow( pWnd, wparam );
628  case WM_ASYNC_SETWINDOWPOS:
629  {
630  PWINDOWPOS winpos = (PWINDOWPOS)lparam;
631  if (!winpos) return 0;
632  lRes = co_WinPosSetWindowPos( pWnd,
633  winpos->hwndInsertAfter,
634  winpos->x,
635  winpos->y,
636  winpos->cx,
637  winpos->cy,
638  winpos->flags);
639  ExFreePoolWithTag(winpos, USERTAG_SWP);
640  return lRes;
641  }
642  case WM_ASYNC_DESTROYWINDOW:
643  {
644  ERR("WM_ASYNC_DESTROYWINDOW\n");
645  if (pWnd->style & WS_CHILD)
646  return co_UserFreeWindow(pWnd, PsGetCurrentProcessWin32Process(), PsGetCurrentThreadWin32Thread(), TRUE);
647  else
648  co_UserDestroyWindow(pWnd);
649  }
650  }
651  return 0;
652 }
653 
654 static LRESULT handle_internal_events( PTHREADINFO pti, PWND pWnd, DWORD dwQEvent, LONG_PTR ExtraInfo, PMSG pMsg)
655 {
656  LRESULT Result = 0;
657 
658  switch(dwQEvent)
659  {
660  case POSTEVENT_NWE:
661  {
662  co_EVENT_CallEvents( pMsg->message, pMsg->hwnd, pMsg->wParam, ExtraInfo);
663  }
664  break;
665  case POSTEVENT_SAW:
666  {
667  //ERR("HIE : SAW : pti 0x%p hWnd 0x%p\n",pti,pMsg->hwnd);
668  IntActivateWindow((PWND)pMsg->wParam, pti, (HANDLE)pMsg->lParam, (DWORD)ExtraInfo);
669  }
670  break;
671  case POSTEVENT_DAW:
672  {
673  //ERR("HIE : DAW : pti 0x%p tid 0x%p hWndPrev 0x%p\n",pti,ExtraInfo,pMsg->hwnd);
674  IntDeactivateWindow(pti, (HANDLE)ExtraInfo);
675  }
676  break;
677  }
678  return Result;
679 }
680 
681 LRESULT FASTCALL
682 IntDispatchMessage(PMSG pMsg)
683 {
684  LONG Time;
685  LRESULT retval = 0;
686  PTHREADINFO pti;
687  PWND Window = NULL;
688  BOOL DoCallBack = TRUE;
689 
690  if (pMsg->hwnd)
691  {
692  Window = UserGetWindowObject(pMsg->hwnd);
693  if (!Window) return 0;
694  }
695 
696  pti = PsGetCurrentThreadWin32Thread();
697 
698  if ( Window && Window->head.pti != pti)
699  {
700  EngSetLastError( ERROR_MESSAGE_SYNC_ONLY );
701  return 0;
702  }
703 
704  if (((pMsg->message == WM_SYSTIMER) ||
705  (pMsg->message == WM_TIMER)) &&
706  (pMsg->lParam) )
707  {
708  if (pMsg->message == WM_TIMER)
709  {
710  if (ValidateTimerCallback(pti,pMsg->lParam))
711  {
712  Time = EngGetTickCount32();
713  retval = co_IntCallWindowProc((WNDPROC)pMsg->lParam,
714  TRUE,
715  pMsg->hwnd,
716  WM_TIMER,
717  pMsg->wParam,
718  (LPARAM)Time,
719  -1);
720  }
721  return retval;
722  }
723  else
724  {
725  PTIMER pTimer = FindSystemTimer(pMsg);
726  if (pTimer && pTimer->pfn)
727  {
728  Time = EngGetTickCount32();
729  pTimer->pfn(pMsg->hwnd, WM_SYSTIMER, (UINT)pMsg->wParam, Time);
730  }
731  return 0;
732  }
733  }
734  // Need a window!
735  if ( !Window ) return 0;
736 
737  if (pMsg->message == WM_PAINT) Window->state |= WNDS_PAINTNOTPROCESSED;
738 
739  if ( Window->state & WNDS_SERVERSIDEWINDOWPROC )
740  {
741  TRACE("Dispatch: Server Side Window Procedure\n");
742  switch(Window->fnid)
743  {
744  case FNID_DESKTOP:
745  DoCallBack = !DesktopWindowProc( Window,
746  pMsg->message,
747  pMsg->wParam,
748  pMsg->lParam,
749  &retval);
750  break;
751  case FNID_MESSAGEWND:
752  DoCallBack = !UserMessageWindowProc( Window,
753  pMsg->message,
754  pMsg->wParam,
755  pMsg->lParam,
756  &retval);
757  break;
758  case FNID_MENU:
759  DoCallBack = !PopupMenuWndProc( Window,
760  pMsg->message,
761  pMsg->wParam,
762  pMsg->lParam,
763  &retval);
764  break;
765  }
766  }
767 
768  /* Since we are doing a callback on the same thread right away, there is
769  no need to copy the lparam to kernel mode and then back to usermode.
770  We just pretend it isn't a pointer */
771 
772  if (DoCallBack)
773  retval = co_IntCallWindowProc( Window->lpfnWndProc,
774  !Window->Unicode,
775  pMsg->hwnd,
776  pMsg->message,
777  pMsg->wParam,
778  pMsg->lParam,
779  -1);
780 
781  if ( pMsg->message == WM_PAINT &&
782  VerifyWnd(Window) &&
783  Window->state & WNDS_PAINTNOTPROCESSED ) // <--- Cleared, paint was already processed!
784  {
785  Window->state2 &= ~WNDS2_WMPAINTSENT;
786  /* send a WM_ERASEBKGND if the non-client area is still invalid */
787  ERR("Message WM_PAINT count %d Internal Paint Set? %s\n",Window->head.pti->cPaintsReady, Window->state & WNDS_INTERNALPAINT ? "TRUE" : "FALSE");
788  IntPaintWindow( Window );
789  }
790 
791  return retval;
792 }
793 
794 /*
795  * Internal version of PeekMessage() doing all the work
796  *
797  * MSDN:
798  * Sent messages
799  * Posted messages
800  * Input (hardware) messages and system internal events
801  * Sent messages (again)
802  * WM_PAINT messages
803  * WM_TIMER messages
804  */
805 BOOL APIENTRY
806 co_IntPeekMessage( PMSG Msg,
807  PWND Window,
808  UINT MsgFilterMin,
809  UINT MsgFilterMax,
810  UINT RemoveMsg,
811  LONG_PTR *ExtraInfo,
812  BOOL bGMSG )
813 {
814  PTHREADINFO pti;
815  BOOL RemoveMessages;
816  UINT ProcessMask;
817  BOOL Hit = FALSE;
818 
819  pti = PsGetCurrentThreadWin32Thread();
820 
821  RemoveMessages = RemoveMsg & PM_REMOVE;
822  ProcessMask = HIWORD(RemoveMsg);
823 
824  /* Hint, "If wMsgFilterMin and wMsgFilterMax are both zero, PeekMessage returns
825  all available messages (that is, no range filtering is performed)". */
826  if (!ProcessMask) ProcessMask = (QS_ALLPOSTMESSAGE|QS_ALLINPUT);
827 
828  IdlePong();
829 
830  do
831  {
832  pti->timeLast = EngGetTickCount32();
833  pti->pcti->tickLastMsgChecked = pti->timeLast;
834 
835  // Post mouse moves while looping through peek messages.
836  if (pti->MessageQueue->QF_flags & QF_MOUSEMOVED)
837  {
838  IntCoalesceMouseMove(pti);
839  }
840 
841  /* Dispatch sent messages here. */
842  while ( co_MsqDispatchOneSentMessage(pti) )
843  {
844  /* if some PM_QS* flags were specified, only handle sent messages from now on */
845  if (HIWORD(RemoveMsg) && !bGMSG) Hit = TRUE; // wine does this; ProcessMask = QS_SENDMESSAGE;
846  }
847  if (Hit) return FALSE;
848 
849  /* Clear changed bits so we can wait on them if we don't find a message */
850  if (ProcessMask & QS_POSTMESSAGE)
851  {
852  pti->pcti->fsChangeBits &= ~(QS_POSTMESSAGE | QS_HOTKEY | QS_TIMER);
853  if (MsgFilterMin == 0 && MsgFilterMax == 0) // Wine hack does this; ~0U)
854  {
855  pti->pcti->fsChangeBits &= ~QS_ALLPOSTMESSAGE;
856  }
857  }
858 
859  if (ProcessMask & QS_INPUT)
860  {
861  pti->pcti->fsChangeBits &= ~QS_INPUT;
862  }
863 
864  /* Now check for normal messages. */
865  if (( (ProcessMask & QS_POSTMESSAGE) ||
866  (ProcessMask & QS_HOTKEY) ) &&
867  MsqPeekMessage( pti,
868  RemoveMessages,
869  Window,
870  MsgFilterMin,
871  MsgFilterMax,
872  ProcessMask,
873  ExtraInfo,
874  0,
875  Msg ))
876  {
877  return TRUE;
878  }
879 
880  /* Only check for quit messages if not posted messages pending. */
881  if (ProcessMask & QS_POSTMESSAGE && pti->QuitPosted)
882  {
883  /* According to the PSDK, WM_QUIT messages are always returned, regardless
884  of the filter specified */
885  Msg->hwnd = NULL;
886  Msg->message = WM_QUIT;
887  Msg->wParam = pti->exitCode;
888  Msg->lParam = 0;
889  if (RemoveMessages)
890  {
891  pti->QuitPosted = FALSE;
892  ClearMsgBitsMask(pti, QS_POSTMESSAGE);
893  pti->pcti->fsWakeBits &= ~QS_ALLPOSTMESSAGE;
894  pti->pcti->fsChangeBits &= ~QS_ALLPOSTMESSAGE;
895  }
896  return TRUE;
897  }
898 
899  /* Check for hardware events. */
900  if ((ProcessMask & QS_INPUT) &&
901  co_MsqPeekHardwareMessage( pti,
902  RemoveMessages,
903  Window,
904  MsgFilterMin,
905  MsgFilterMax,
906  ProcessMask,
907  Msg))
908  {
909  return TRUE;
910  }
911 
912  /* Now check for System Event messages. */
913  {
914  LONG_PTR eExtraInfo;
915  MSG eMsg;
916  DWORD dwQEvent;
917  if (MsqPeekMessage( pti,
918  TRUE,
919  Window,
920  0,
921  0,
922  QS_EVENT,
923  &eExtraInfo,
924  &dwQEvent,
925  &eMsg ))
926  {
927  handle_internal_events( pti, Window, dwQEvent, eExtraInfo, &eMsg);
928  continue;
929  }
930  }
931 
932  /* Check for sent messages again. */
933  while ( co_MsqDispatchOneSentMessage(pti) )
934  {
935  if (HIWORD(RemoveMsg) && !bGMSG) Hit = TRUE;
936  }
937  if (Hit) return FALSE;
938 
939  /* Check for paint messages. */
940  if ((ProcessMask & QS_PAINT) &&
941  pti->cPaintsReady &&
942  IntGetPaintMessage( Window,
943  MsgFilterMin,
944  MsgFilterMax,
945  pti,
946  Msg,
947  RemoveMessages))
948  {
949  return TRUE;
950  }
951 
952  /* This is correct, check for the current threads timers waiting to be
953  posted to this threads message queue. If any we loop again.
954  */
955  if ((ProcessMask & QS_TIMER) &&
956  PostTimerMessages(Window))
957  {
958  continue;
959  }
960 
961  return FALSE;
962  }
963  while (TRUE);
964 
965  return TRUE;
966 }
967 
968 BOOL FASTCALL
969 co_IntWaitMessage( PWND Window,
970  UINT MsgFilterMin,
971  UINT MsgFilterMax )
972 {
973  PTHREADINFO pti;
974  NTSTATUS Status = STATUS_SUCCESS;
975  MSG Msg;
976  LONG_PTR ExtraInfo = 0;
977 
978  pti = PsGetCurrentThreadWin32Thread();
979 
980  do
981  {
982  if ( co_IntPeekMessage( &Msg, // Dont reenter!
983  Window,
984  MsgFilterMin,
985  MsgFilterMax,
986  MAKELONG( PM_NOREMOVE, GetWakeMask( MsgFilterMin, MsgFilterMax)),
987  &ExtraInfo,
988  TRUE ) ) // act like GetMessage.
989  {
990  return TRUE;
991  }
992 
993  /* Nothing found. Wait for new messages. */
994  Status = co_MsqWaitForNewMessages( pti,
995  Window,
996  MsgFilterMin,
997  MsgFilterMax);
998  if (!NT_SUCCESS(Status))
999  {
1000  SetLastNtError(Status);
1001  ERR("Exit co_IntWaitMessage on error!\n");
1002  return FALSE;
1003  }
1004  if (Status == STATUS_USER_APC || Status == STATUS_TIMEOUT)
1005  {
1006  return FALSE;
1007  }
1008  }
1009  while ( TRUE );
1010 
1011  return FALSE;
1012 }
1013 
1014 BOOL APIENTRY
1015 co_IntGetPeekMessage( PMSG pMsg,
1016  HWND hWnd,
1017  UINT MsgFilterMin,
1018  UINT MsgFilterMax,
1019  UINT RemoveMsg,
1020  BOOL bGMSG )
1021 {
1022  PWND Window;
1023  PTHREADINFO pti;
1024  BOOL Present = FALSE;
1025  NTSTATUS Status;
1026  LONG_PTR ExtraInfo = 0;
1027 
1028  if ( hWnd == HWND_TOPMOST || hWnd == HWND_BROADCAST )
1029  hWnd = HWND_BOTTOM;
1030 
1031  /* Validate input */
1032  if (hWnd && hWnd != HWND_BOTTOM)
1033  {
1034  if (!(Window = UserGetWindowObject(hWnd)))
1035  {
1036  if (bGMSG)
1037  return -1;
1038  else
1039  return FALSE;
1040  }
1041  }
1042  else
1043  {
1044  Window = (PWND)hWnd;
1045  }
1046 
1047  if (MsgFilterMax < MsgFilterMin)
1048  {
1049  MsgFilterMin = 0;
1050  MsgFilterMax = 0;
1051  }
1052 
1053  if (bGMSG)
1054  {
1055  RemoveMsg |= ((GetWakeMask( MsgFilterMin, MsgFilterMax ))<< 16);
1056  }
1057 
1058  pti = PsGetCurrentThreadWin32Thread();
1059  pti->pClientInfo->cSpins++; // Bump up the spin count.
1060 
1061  do
1062  {
1063  Present = co_IntPeekMessage( pMsg,
1064  Window,
1065  MsgFilterMin,
1066  MsgFilterMax,
1067  RemoveMsg,
1068  &ExtraInfo,
1069  bGMSG );
1070  if (Present)
1071  {
1072  /* GetMessage or PostMessage must never get messages that contain pointers */
1073  ASSERT(FindMsgMemory(pMsg->message) == NULL);
1074 
1075  if ( pMsg->message >= WM_DDE_FIRST && pMsg->message <= WM_DDE_LAST )
1076  {
1077  if (!IntDdeGetMessageHook(pMsg, ExtraInfo))
1078  {
1079  TRACE("DDE Get return ERROR\n");
1080  continue;
1081  }
1082  }
1083 
1084  if (pMsg->message != WM_PAINT && pMsg->message != WM_QUIT)
1085  {
1086  if (!RtlEqualMemory(&pti->ptLast, &pMsg->pt, sizeof(POINT)))
1087  {
1088  pti->TIF_flags |= TIF_MSGPOSCHANGED;
1089  }
1090  pti->timeLast = pMsg->time;
1091  pti->ptLast = pMsg->pt;
1092  }
1093 
1094  // The WH_GETMESSAGE hook enables an application to monitor messages about to
1095  // be returned by the GetMessage or PeekMessage function.
1096 
1097  co_HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, RemoveMsg & PM_REMOVE, (LPARAM)pMsg);
1098 
1099  if ( bGMSG || pMsg->message == WM_PAINT) break;
1100  }
1101 
1102  if ( bGMSG )
1103  {
1104  Status = co_MsqWaitForNewMessages( pti,
1105  Window,
1106  MsgFilterMin,
1107  MsgFilterMax);
1108  if ( !NT_SUCCESS(Status) ||
1109  Status == STATUS_USER_APC ||
1110  Status == STATUS_TIMEOUT )
1111  {
1112  Present = -1;
1113  break;
1114  }
1115  }
1116  else
1117  {
1118  if (!(RemoveMsg & PM_NOYIELD))
1119  {
1120  IdlePing();
1121  // Yield this thread!
1122  UserLeave();
1123  ZwYieldExecution();
1124  UserEnterExclusive();
1125  // Fall through to exit.
1126  IdlePong();
1127  }
1128  break;
1129  }
1130  }
1131  while( bGMSG && !Present );
1132 
1133  // Been spinning, time to swap vinyl...
1134  if (pti->pClientInfo->cSpins >= 100)
1135  {
1136  // Clear the spin cycle to fix the mix.
1137  pti->pClientInfo->cSpins = 0;
1138  //if (!(pti->TIF_flags & TIF_SPINNING)) // FIXME: Need to swap vinyl...
1139  }
1140  return Present;
1141 }
1142 
1143 BOOL FASTCALL
1144 UserPostThreadMessage( PTHREADINFO pti,
1145  UINT Msg,
1146  WPARAM wParam,
1147  LPARAM lParam )
1148 {
1149  MSG Message;
1150 
1151  if (is_pointer_message(Msg))
1152  {
1153  EngSetLastError(ERROR_MESSAGE_SYNC_ONLY );
1154  return FALSE;
1155  }
1156  Message.hwnd = NULL;
1157  Message.message = Msg;
1158  Message.wParam = wParam;
1159  Message.lParam = lParam;
1160  Message.pt = gpsi->ptCursor;
1161  Message.time = EngGetTickCount32();
1162  MsqPostMessage(pti, &Message, FALSE, QS_POSTMESSAGE, 0, 0);
1163  return TRUE;
1164 }
1165 
1166 PTHREADINFO FASTCALL
1167 IntSendTo(PWND Window, PTHREADINFO ptiCur, UINT Msg)
1168 {
1169  if ( ptiCur )
1170  {
1171  if (!Window ||
1172  Window->head.pti == ptiCur )
1173  {
1174  return NULL;
1175  }
1176  }
1177  return Window ? Window->head.pti : NULL;
1178 }
1179 
1180 BOOL FASTCALL
1181 UserPostMessage( HWND Wnd,
1182  UINT Msg,
1183  WPARAM wParam,
1184  LPARAM lParam )
1185 {
1186  PTHREADINFO pti;
1187  MSG Message;
1188  LONG_PTR ExtraInfo = 0;
1189 
1190  Message.hwnd = Wnd;
1191  Message.message = Msg;
1192  Message.wParam = wParam;
1193  Message.lParam = lParam;
1194  Message.pt = gpsi->ptCursor;
1195  Message.time = EngGetTickCount32();
1196 
1197  if (is_pointer_message(Message.message))
1198  {
1199  EngSetLastError(ERROR_MESSAGE_SYNC_ONLY );
1200  return FALSE;
1201  }
1202 
1203  if (Wnd == HWND_BROADCAST || Wnd == HWND_TOPMOST)
1204  {
1205  HWND *List;
1206  PWND DesktopWindow;
1207  ULONG i;
1208 
1209  if (!is_message_broadcastable(Msg)) return TRUE;
1210 
1211  DesktopWindow = UserGetDesktopWindow();
1212  List = IntWinListChildren(DesktopWindow);
1213 
1214  if (List != NULL)
1215  {
1216  UserPostMessage(DesktopWindow->head.h, Msg, wParam, lParam);
1217  for (i = 0; List[i]; i++)
1218  {
1219  PWND pwnd = UserGetWindowObject(List[i]);
1220  if (!pwnd) continue;
1221 
1222  if ( pwnd->fnid == FNID_MENU || // Also need pwnd->pcls->atomClassName == gaOleMainThreadWndClass
1223  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
1224  continue;
1225 
1226  UserPostMessage(List[i], Msg, wParam, lParam);
1227  }
1228  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
1229  }
1230  }
1231  else
1232  {
1233  PWND Window;
1234 
1235  if (!Wnd)
1236  {
1237  return UserPostThreadMessage( gptiCurrent,
1238  Msg,
1239  wParam,
1240  lParam);
1241  }
1242 
1243  Window = UserGetWindowObject(Wnd);
1244  if ( !Window )
1245  {
1246  ERR("UserPostMessage: Invalid handle 0x%p Msg 0x%x!\n", Wnd, Msg);
1247  return FALSE;
1248  }
1249 
1250  pti = Window->head.pti;
1251 
1252  if ( pti->TIF_flags & TIF_INCLEANUP )
1253  {
1254  ERR("Attempted to post message to window %p when the thread is in cleanup!\n", Wnd);
1255  return FALSE;
1256  }
1257 
1258  if ( Window->state & WNDS_DESTROYED )
1259  {
1260  ERR("Attempted to post message to window %p that is being destroyed!\n", Wnd);
1261  /* FIXME: Last error code? */
1262  return FALSE;
1263  }
1264 
1265  if ( Msg >= WM_DDE_FIRST && Msg <= WM_DDE_LAST )
1266  {
1267  if (!IntDdePostMessageHook(Window, Msg, wParam, &lParam, &ExtraInfo))
1268  {
1269  TRACE("Posting Exit DDE 0x%x\n",Msg);
1270  return FALSE;
1271  }
1272  Message.lParam = lParam;
1273  }
1274 
1275  MsqPostMessage(pti, &Message, FALSE, QS_POSTMESSAGE, 0, ExtraInfo);
1276  }
1277  return TRUE;
1278 }
1279 
1280 LRESULT FASTCALL
1281 co_IntSendMessage( HWND hWnd,
1282  UINT Msg,
1283  WPARAM wParam,
1284  LPARAM lParam )
1285 {
1286  ULONG_PTR Result = 0;
1287 
1288  if (co_IntSendMessageTimeout(hWnd, Msg, wParam, lParam, SMTO_NORMAL, 0, &Result))
1289  {
1290  return (LRESULT)Result;
1291  }
1292  return 0;
1293 }
1294 
1295 static LRESULT FASTCALL
1296 co_IntSendMessageTimeoutSingle( HWND hWnd,
1297  UINT Msg,
1298  WPARAM wParam,
1299  LPARAM lParam,
1300  UINT uFlags,
1301  UINT uTimeout,
1302  ULONG_PTR *uResult )
1303 {
1304  NTSTATUS Status = STATUS_SUCCESS;
1305  PWND Window = NULL;
1306  PMSGMEMORY MsgMemoryEntry;
1307  INT lParamBufferSize;
1308  LPARAM lParamPacked;
1309  PTHREADINFO Win32Thread, ptiSendTo = NULL;
1310  ULONG_PTR Result = 0;
1311  DECLARE_RETURN(LRESULT);
1312  USER_REFERENCE_ENTRY Ref;
1313  BOOL DoCallBack = TRUE;
1314 
1315  if (!(Window = UserGetWindowObject(hWnd)))
1316  {
1317  TRACE("SendMessageTimeoutSingle: Invalid handle 0x%p!\n",hWnd);
1318  RETURN( FALSE);
1319  }
1320 
1321  UserRefObjectCo(Window, &Ref);
1322 
1323  Win32Thread = PsGetCurrentThreadWin32Thread();
1324 
1325  ptiSendTo = IntSendTo(Window, Win32Thread, Msg);
1326 
1327  if ( Msg >= WM_DDE_FIRST && Msg <= WM_DDE_LAST )
1328  {
1329  if (!IntDdeSendMessageHook(Window, Msg, wParam, lParam))
1330  {
1331  ERR("Sending Exit DDE 0x%x\n",Msg);
1332  RETURN( FALSE);
1333  }
1334  }
1335 
1336  if ( !ptiSendTo )
1337  {
1338  if (Win32Thread->TIF_flags & TIF_INCLEANUP)
1339  {
1340  /* Never send messages to exiting threads */
1341  RETURN( FALSE);
1342  }
1343 
1344  if (Msg & 0x80000000)
1345  {
1346  TRACE("SMTS: Internal Message!\n");
1347  Result = (ULONG_PTR)handle_internal_message( Window, Msg, wParam, lParam );
1348  if (uResult) *uResult = Result;
1349  RETURN( TRUE);
1350  }
1351 
1352  // Only happens when calling the client!
1353  IntCallWndProc( Window, hWnd, Msg, wParam, lParam);
1354 
1355  if ( Window->state & WNDS_SERVERSIDEWINDOWPROC )
1356  {
1357  TRACE("SMT: Server Side Window Procedure\n");
1358  // Handle it here. Safeguard against excessive recursions.
1359  if (IoGetRemainingStackSize() < PAGE_SIZE)
1360  {
1361  ERR("Server Callback Exceeded Stack!\n");
1362  RETURN( FALSE);
1363  }
1364  /* Return after server side call, IntCallWndProcRet will not be called. */
1365  switch(Window->fnid)
1366  {
1367  case FNID_DESKTOP:
1368  DoCallBack = !DesktopWindowProc(Window, Msg, wParam, lParam,(LRESULT*)&Result);
1369  break;
1370  case FNID_MESSAGEWND:
1371  DoCallBack = !UserMessageWindowProc(Window, Msg, wParam, lParam,(LRESULT*)&Result);
1372  break;
1373  case FNID_MENU:
1374  DoCallBack = !PopupMenuWndProc( Window, Msg, wParam, lParam,(LRESULT*)&Result);
1375  break;
1376  }
1377  if (!DoCallBack)
1378  {
1379  if (uResult) *uResult = Result;
1380  RETURN( TRUE);
1381  }
1382  }
1383  /* See if this message type is present in the table */
1384  MsgMemoryEntry = FindMsgMemory(Msg);
1385  if (NULL == MsgMemoryEntry)
1386  {
1387  lParamBufferSize = -1;
1388  }
1389  else
1390  {
1391  lParamBufferSize = MsgMemorySize(MsgMemoryEntry, wParam, lParam);
1392  // If zero, do not allow callback on client side to allocate a buffer!!!!! See CORE-7695.
1393  if (!lParamBufferSize) lParamBufferSize = -1;
1394  }
1395 
1396  if (! NT_SUCCESS(PackParam(&lParamPacked, Msg, wParam, lParam, FALSE)))
1397  {
1398  ERR("Failed to pack message parameters\n");
1399  RETURN( FALSE);
1400  }
1401 
1402  Result = (ULONG_PTR)co_IntCallWindowProc( Window->lpfnWndProc,
1403  !Window->Unicode,
1404  hWnd,
1405  Msg,
1406  wParam,
1407  lParamPacked,
1408  lParamBufferSize );
1409  if (uResult)
1410  {
1411  *uResult = Result;
1412  }
1413 
1414  if (! NT_SUCCESS(UnpackParam(lParamPacked, Msg, wParam, lParam, FALSE)))
1415  {
1416  ERR("Failed to unpack message parameters\n");
1417  RETURN( TRUE);
1418  }
1419 
1420  // Only happens when calling the client!
1421  IntCallWndProcRet( Window, hWnd, Msg, wParam, lParam, (LRESULT *)uResult);
1422 
1423  RETURN( TRUE);
1424  }
1425 
1426  if (MsqIsHung(ptiSendTo))
1427  {
1428  if (uFlags & SMTO_ABORTIFHUNG)
1429  {
1430  // FIXME: Set window hung and add to a list.
1431  /* FIXME: Set a LastError? */
1432  RETURN( FALSE);
1433  }
1434  }
1435 
1436  if (Window->state & WNDS_DESTROYED)
1437  {
1438  /* FIXME: Last error? */
1439  ERR("Attempted to send message to window %p that is being destroyed!\n", hWnd);
1440  RETURN( FALSE);
1441  }
1442 
1443  do
1444  {
1445  Status = co_MsqSendMessage( ptiSendTo,
1446  hWnd,
1447  Msg,
1448  wParam,
1449  lParam,
1450  uTimeout,
1451  (uFlags & SMTO_BLOCK),
1452  MSQ_NORMAL,
1453  uResult );
1454  }
1455  while ((STATUS_TIMEOUT == Status) &&
1456  (uFlags & SMTO_NOTIMEOUTIFNOTHUNG) &&
1457  !MsqIsHung(ptiSendTo)); // FIXME: Set window hung and add to a list.
1458 
1459  if (Status == STATUS_TIMEOUT)
1460  {
1461  if (0 && MsqIsHung(ptiSendTo))
1462  {
1463  TRACE("Let's go Ghost!\n");
1464  IntMakeHungWindowGhosted(hWnd);
1465  }
1466 /*
1467  * MSDN says:
1468  * Microsoft Windows 2000: If GetLastError returns zero, then the function
1469  * timed out.
1470  * XP+ : If the function fails or times out, the return value is zero.
1471  * To get extended error information, call GetLastError. If GetLastError
1472  * returns ERROR_TIMEOUT, then the function timed out.
1473  */
1474  EngSetLastError(ERROR_TIMEOUT);
1475  RETURN( FALSE);
1476  }
1477  else if (!NT_SUCCESS(Status))
1478  {
1479  SetLastNtError(Status);
1480  RETURN( FALSE);
1481  }
1482 
1483  RETURN( TRUE);
1484 
1485 CLEANUP:
1486  if (Window) UserDerefObjectCo(Window);
1487  END_CLEANUP;
1488 }
1489 
1490 LRESULT FASTCALL
1491 co_IntSendMessageTimeout( HWND hWnd,
1492  UINT Msg,
1493  WPARAM wParam,
1494  LPARAM lParam,
1495  UINT uFlags,
1496  UINT uTimeout,
1497  ULONG_PTR *uResult )
1498 {
1499  PWND DesktopWindow;
1500  HWND *Children;
1501  HWND *Child;
1502 
1503  if (hWnd != HWND_BROADCAST && hWnd != HWND_TOPMOST)
1504  {
1505  return co_IntSendMessageTimeoutSingle(hWnd, Msg, wParam, lParam, uFlags, uTimeout, uResult);
1506  }
1507 
1508  if (!is_message_broadcastable(Msg)) return TRUE;
1509 
1510  DesktopWindow = UserGetDesktopWindow();
1511  if (NULL == DesktopWindow)
1512  {
1513  EngSetLastError(ERROR_INTERNAL_ERROR);
1514  return 0;
1515  }
1516 
1517  if (hWnd != HWND_TOPMOST)
1518  {
1519  /* Send message to the desktop window too! */
1520  co_IntSendMessageTimeoutSingle(DesktopWindow->head.h, Msg, wParam, lParam, uFlags, uTimeout, uResult);
1521  }
1522 
1523  Children = IntWinListChildren(DesktopWindow);
1524  if (NULL == Children)
1525  {
1526  return 0;
1527  }
1528 
1529  for (Child = Children; NULL != *Child; Child++)
1530  {
1531  PWND pwnd = UserGetWindowObject(*Child);
1532  if (!pwnd) continue;
1533 
1534  if ( pwnd->fnid == FNID_MENU ||
1535  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
1536  continue;
1537 
1538  co_IntSendMessageTimeoutSingle(*Child, Msg, wParam, lParam, uFlags, uTimeout, uResult);
1539  }
1540 
1541  ExFreePoolWithTag(Children, USERTAG_WINDOWLIST);
1542 
1543  return (LRESULT) TRUE;
1544 }
1545 
1546 LRESULT FASTCALL
1547 co_IntSendMessageNoWait(HWND hWnd,
1548  UINT Msg,
1549  WPARAM wParam,
1550  LPARAM lParam)
1551 {
1552  ULONG_PTR Result = 0;
1553  return co_IntSendMessageWithCallBack( hWnd,
1554  Msg,
1555  wParam,
1556  lParam,
1557  NULL,
1558  0,
1559  &Result);
1560 }
1561 /* MSDN:
1562  If you send a message in the range below WM_USER to the asynchronous message
1563  functions (PostMessage, SendNotifyMessage, and SendMessageCallback), its
1564  message parameters cannot include pointers. Otherwise, the operation will fail.
1565  The functions will return before the receiving thread has had a chance to
1566  process the message and the sender will free the memory before it is used.
1567 */
1568 LRESULT FASTCALL
1569 co_IntSendMessageWithCallBack( HWND hWnd,
1570  UINT Msg,
1571  WPARAM wParam,
1572  LPARAM lParam,
1573  SENDASYNCPROC CompletionCallback,
1574  ULONG_PTR CompletionCallbackContext,
1575  ULONG_PTR *uResult)
1576 {
1577  ULONG_PTR Result;
1578  PWND Window = NULL;
1579  PMSGMEMORY MsgMemoryEntry;
1580  INT lParamBufferSize;
1581  LPARAM lParamPacked;
1582  PTHREADINFO Win32Thread, ptiSendTo = NULL;
1583  DECLARE_RETURN(LRESULT);
1584  USER_REFERENCE_ENTRY Ref;
1585  PUSER_SENT_MESSAGE Message;
1586  BOOL DoCallBack = TRUE;
1587 
1588  if (!(Window = UserGetWindowObject(hWnd)))
1589  {
1590  TRACE("SendMessageWithCallBack: Invalid handle 0x%p!\n",hWnd);
1591  RETURN(FALSE);
1592  }
1593 
1594  UserRefObjectCo(Window, &Ref);
1595 
1596  if (Window->state & WNDS_DESTROYED)
1597  {
1598  /* FIXME: last error? */
1599  ERR("Attempted to send message to window %p that is being destroyed!\n", hWnd);
1600  RETURN(FALSE);
1601  }
1602 
1603  Win32Thread = PsGetCurrentThreadWin32Thread();
1604 
1605  if (Win32Thread == NULL ||
1606  Win32Thread->TIF_flags & TIF_INCLEANUP)
1607  {
1608  RETURN(FALSE);
1609  }
1610 
1611  ptiSendTo = IntSendTo(Window, Win32Thread, Msg);
1612 
1613  if (Msg & 0x80000000 &&
1614  !ptiSendTo)
1615  {
1616  if (Win32Thread->TIF_flags & TIF_INCLEANUP) RETURN( FALSE);
1617 
1618  TRACE("SMWCB: Internal Message!\n");
1619  Result = (ULONG_PTR)handle_internal_message( Window, Msg, wParam, lParam );
1620  if (uResult) *uResult = Result;
1621  RETURN( TRUE);
1622  }
1623 
1624  /* See if this message type is present in the table */
1625  MsgMemoryEntry = FindMsgMemory(Msg);
1626  if (NULL == MsgMemoryEntry)
1627  {
1628  lParamBufferSize = -1;
1629  }
1630  else
1631  {
1632  lParamBufferSize = MsgMemorySize(MsgMemoryEntry, wParam, lParam);
1633  if (!lParamBufferSize) lParamBufferSize = -1;
1634  }
1635 
1636  if (! NT_SUCCESS(PackParam(&lParamPacked, Msg, wParam, lParam, !!ptiSendTo)))
1637  {
1638  ERR("Failed to pack message parameters\n");
1639  RETURN( FALSE);
1640  }
1641 
1642  /* If it can be sent now, then send it. */
1643  if ( !ptiSendTo )
1644  {
1645  if (Win32Thread->TIF_flags & TIF_INCLEANUP)
1646  {
1647  UnpackParam(lParamPacked, Msg, wParam, lParam, FALSE);
1648  /* Never send messages to exiting threads */
1649  RETURN(FALSE);
1650  }
1651 
1652  IntCallWndProc( Window, hWnd, Msg, wParam, lParam);
1653 
1654  if ( Window->state & WNDS_SERVERSIDEWINDOWPROC )
1655  {
1656  TRACE("SMWCB: Server Side Window Procedure\n");
1657  switch(Window->fnid)
1658  {
1659  case FNID_DESKTOP:
1660  DoCallBack = !DesktopWindowProc(Window, Msg, wParam, lParamPacked, (LRESULT*)&Result);
1661  break;
1662  case FNID_MESSAGEWND:
1663  DoCallBack = !UserMessageWindowProc(Window, Msg, wParam, lParam,(LRESULT*)&Result);
1664  break;
1665  case FNID_MENU:
1666  DoCallBack = !PopupMenuWndProc( Window, Msg, wParam, lParam,(LRESULT*)&Result);
1667  break;
1668  }
1669  }
1670 
1671  if (DoCallBack)
1672  Result = (ULONG_PTR)co_IntCallWindowProc( Window->lpfnWndProc,
1673  !Window->Unicode,
1674  hWnd,
1675  Msg,
1676  wParam,
1677  lParamPacked,
1678  lParamBufferSize );
1679  if(uResult)
1680  {
1681  *uResult = Result;
1682  }
1683 
1684  IntCallWndProcRet( Window, hWnd, Msg, wParam, lParam, (LRESULT *)uResult);
1685 
1686  if (CompletionCallback)
1687  {
1688  co_IntCallSentMessageCallback(CompletionCallback,
1689  hWnd,
1690  Msg,
1691  CompletionCallbackContext,
1692  Result);
1693  }
1694  }
1695 
1696  if ( !ptiSendTo)
1697  {
1698  if (! NT_SUCCESS(UnpackParam(lParamPacked, Msg, wParam, lParam, FALSE)))
1699  {
1700  ERR("Failed to unpack message parameters\n");
1701  }
1702  RETURN(TRUE);
1703  }
1704 
1705  if(!(Message = AllocateUserMessage(FALSE)))
1706  {
1707  ERR("MsqSendMessage(): Not enough memory to allocate a message");
1708  RETURN( FALSE);
1709  }
1710 
1711  Message->Msg.hwnd = hWnd;
1712  Message->Msg.message = Msg;
1713  Message->Msg.wParam = wParam;
1714  Message->Msg.lParam = lParamPacked;
1715  Message->pkCompletionEvent = NULL; // No event needed.
1716  Message->lResult = 0;
1717  Message->QS_Flags = 0;
1718  Message->ptiReceiver = ptiSendTo;
1719  Message->ptiSender = NULL; // mjmartin, you are right! This is null.
1720  Message->ptiCallBackSender = Win32Thread;
1721  Message->CompletionCallback = CompletionCallback;
1722  Message->CompletionCallbackContext = CompletionCallbackContext;
1723  Message->HookMessage = MSQ_NORMAL;
1724  Message->HasPackedLParam = (lParamBufferSize > 0);
1725  Message->QS_Flags = QS_SENDMESSAGE;
1726  Message->flags = SMF_RECEIVERFREE;
1727 
1728  if (Msg & 0x80000000) // Higher priority event message!
1729  InsertHeadList(&ptiSendTo->SentMessagesListHead, &Message->ListEntry);
1730  else
1731  InsertTailList(&ptiSendTo->SentMessagesListHead, &Message->ListEntry);
1732  MsqWakeQueue(ptiSendTo, QS_SENDMESSAGE, TRUE);
1733 
1734  RETURN(TRUE);
1735 
1736 CLEANUP:
1737  if (Window) UserDerefObjectCo(Window);
1738  END_CLEANUP;
1739 }
1740 
1741 #if 0
1742 /*
1743  This HACK function posts a message if the destination's message queue belongs to
1744  another thread, otherwise it sends the message. It does not support broadcast
1745  messages!
1746 */
1747 LRESULT FASTCALL
1748 co_IntPostOrSendMessage( HWND hWnd,
1749  UINT Msg,
1750  WPARAM wParam,
1751  LPARAM lParam )
1752 {
1753  ULONG_PTR Result;
1754  PTHREADINFO pti;
1755  PWND Window;
1756 
1757  if ( hWnd == HWND_BROADCAST )
1758  {
1759  return 0;
1760  }
1761 
1762  if(!(Window = UserGetWindowObject(hWnd)))
1763  {
1764  TRACE("PostOrSendMessage: Invalid handle 0x%p!\n",hWnd);
1765  return 0;
1766  }
1767 
1768  pti = PsGetCurrentThreadWin32Thread();
1769 
1770  if ( IntSendTo(Window, pti, Msg) &&
1771  FindMsgMemory(Msg) == 0 )
1772  {
1773  Result = UserPostMessage(hWnd, Msg, wParam, lParam);
1774  }
1775  else
1776  {
1777  if ( !co_IntSendMessageTimeoutSingle(hWnd, Msg, wParam, lParam, SMTO_NORMAL, 0, &Result) )
1778  {
1779  Result = 0;
1780  }
1781  }
1782 
1783  return (LRESULT)Result;
1784 }
1785 #endif
1786 
1787 static LRESULT FASTCALL
1788 co_IntDoSendMessage( HWND hWnd,
1789  UINT Msg,
1790  WPARAM wParam,
1791  LPARAM lParam,
1792  PDOSENDMESSAGE dsm)
1793 {
1794  LRESULT Result = TRUE;
1795  NTSTATUS Status;
1796  PWND Window = NULL;
1797  MSG UserModeMsg, KernelModeMsg;
1798  PMSGMEMORY MsgMemoryEntry;
1799  PTHREADINFO ptiSendTo;
1800 
1801  if (hWnd != HWND_BROADCAST && hWnd != HWND_TOPMOST)
1802  {
1803  Window = UserGetWindowObject(hWnd);
1804  if ( !Window )
1805  {
1806  return 0;
1807  }
1808  }
1809 
1810  /* Check for an exiting window. */
1811  if (Window && Window->state & WNDS_DESTROYED)
1812  {
1813  ERR("co_IntDoSendMessage Window Exiting!\n");
1814  }
1815 
1816  /* See if the current thread can handle this message */
1817  ptiSendTo = IntSendTo(Window, gptiCurrent, Msg);
1818 
1819  // If broadcasting or sending to another thread, save the users data.
1820  if (!Window || ptiSendTo )
1821  {
1822  UserModeMsg.hwnd = hWnd;
1823  UserModeMsg.message = Msg;
1824  UserModeMsg.wParam = wParam;
1825  UserModeMsg.lParam = lParam;
1826  MsgMemoryEntry = FindMsgMemory(UserModeMsg.message);
1827  Status = CopyMsgToKernelMem(&KernelModeMsg, &UserModeMsg, MsgMemoryEntry);
1828  if (!NT_SUCCESS(Status))
1829  {
1830  EngSetLastError(ERROR_INVALID_PARAMETER);
1831  return (dsm ? 0 : -1);
1832  }
1833  }
1834  else
1835  {
1836  KernelModeMsg.hwnd = hWnd;
1837  KernelModeMsg.message = Msg;
1838  KernelModeMsg.wParam = wParam;
1839  KernelModeMsg.lParam = lParam;
1840  }
1841 
1842  if (!dsm)
1843  {
1844  Result = co_IntSendMessage( KernelModeMsg.hwnd,
1845  KernelModeMsg.message,
1846  KernelModeMsg.wParam,
1847  KernelModeMsg.lParam );
1848  }
1849  else
1850  {
1851  Result = co_IntSendMessageTimeout( KernelModeMsg.hwnd,
1852  KernelModeMsg.message,
1853  KernelModeMsg.wParam,
1854  KernelModeMsg.lParam,
1855  dsm->uFlags,
1856  dsm->uTimeout,
1857  &dsm->Result );
1858  }
1859 
1860  if (!Window || ptiSendTo )
1861  {
1862  Status = CopyMsgToUserMem(&UserModeMsg, &KernelModeMsg);
1863  if (!NT_SUCCESS(Status))
1864  {
1865  EngSetLastError(ERROR_INVALID_PARAMETER);
1866  return(dsm ? 0 : -1);
1867  }
1868  }
1869 
1870  return (LRESULT)Result;
1871 }
1872 
1873 BOOL FASTCALL
1874 UserSendNotifyMessage( HWND hWnd,
1875  UINT Msg,
1876  WPARAM wParam,
1877  LPARAM lParam )
1878 {
1879  BOOL Ret = TRUE;
1880 
1881  if (is_pointer_message(Msg))
1882  {
1883  EngSetLastError(ERROR_MESSAGE_SYNC_ONLY );
1884  return FALSE;
1885  }
1886 
1887  // Basicly the same as IntPostOrSendMessage
1888  if (hWnd == HWND_BROADCAST) // Handle Broadcast
1889  {
1890  HWND *List;
1891  PWND DesktopWindow;
1892  ULONG i;
1893 
1894  DesktopWindow = UserGetDesktopWindow();
1895  List = IntWinListChildren(DesktopWindow);
1896 
1897  if (List != NULL)
1898  {
1899  UserSendNotifyMessage(DesktopWindow->head.h, Msg, wParam, lParam);
1900  for (i = 0; List[i]; i++)
1901  {
1902  PWND pwnd = UserGetWindowObject(List[i]);
1903  if (!pwnd) continue;
1904 
1905  if ( pwnd->fnid == FNID_MENU ||
1906  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
1907  continue;
1908 
1909  Ret = UserSendNotifyMessage(List[i], Msg, wParam, lParam);
1910  }
1911  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
1912  }
1913  }
1914  else
1915  {
1916  Ret = co_IntSendMessageNoWait( hWnd, Msg, wParam, lParam);
1917  }
1918  return Ret;
1919 }
1920 
1921 
1922 DWORD APIENTRY
1923 IntGetQueueStatus(DWORD Changes)
1924 {
1925  PTHREADINFO pti;
1926  DWORD Result;
1927 
1928  pti = PsGetCurrentThreadWin32Thread();
1929 // wine:
1930  Changes &= (QS_ALLINPUT|QS_ALLPOSTMESSAGE|QS_SMRESULT);
1931 
1932  /* High word, types of messages currently in the queue.
1933  Low word, types of messages that have been added to the queue and that
1934  are still in the queue
1935  */
1936  Result = MAKELONG(pti->pcti->fsChangeBits & Changes, pti->pcti->fsWakeBits & Changes);
1937 
1938  pti->pcti->fsChangeBits &= ~Changes;
1939 
1940  return Result;
1941 }
1942 
1943 BOOL APIENTRY
1944 IntInitMessagePumpHook(VOID)
1945 {
1946  PTHREADINFO pti = PsGetCurrentThreadWin32Thread();
1947 
1948  if (pti->pcti)
1949  {
1950  pti->pcti->dwcPumpHook++;
1951  return TRUE;
1952  }
1953  return FALSE;
1954 }
1955 
1956 BOOL APIENTRY
1957 IntUninitMessagePumpHook(VOID)
1958 {
1959  PTHREADINFO pti = PsGetCurrentThreadWin32Thread();
1960 
1961  if (pti->pcti)
1962  {
1963  if (pti->pcti->dwcPumpHook <= 0)
1964  {
1965  return FALSE;
1966  }
1967  pti->pcti->dwcPumpHook--;
1968  return TRUE;
1969  }
1970  return FALSE;
1971 }
1972 
1973 BOOL FASTCALL
1974 IntCallMsgFilter( LPMSG lpmsg, INT code)
1975 {
1976  BOOL Ret = FALSE;
1977 
1978  if ( co_HOOK_CallHooks( WH_SYSMSGFILTER, code, 0, (LPARAM)lpmsg))
1979  {
1980  Ret = TRUE;
1981  }
1982  else
1983  {
1984  Ret = co_HOOK_CallHooks( WH_MSGFILTER, code, 0, (LPARAM)lpmsg);
1985  }
1986  return Ret;
1987 }
1988 
1991 BOOL
1992 APIENTRY
1993 NtUserDragDetect(
1994  HWND hWnd,
1995  POINT pt) // Just like the User call.
1996 {
1997  MSG msg;
1998  RECT rect;
1999  ULONG wDragWidth, wDragHeight;
2000  DECLARE_RETURN(BOOL);
2001 
2002  TRACE("Enter NtUserDragDetect(%p)\n", hWnd);
2003  UserEnterExclusive();
2004 
2005  wDragWidth = UserGetSystemMetrics(SM_CXDRAG);
2006  wDragHeight= UserGetSystemMetrics(SM_CYDRAG);
2007 
2008  rect.left = pt.x - wDragWidth;
2009  rect.right = pt.x + wDragWidth;
2010 
2011  rect.top = pt.y - wDragHeight;
2012  rect.bottom = pt.y + wDragHeight;
2013 
2014  co_UserSetCapture(hWnd);
2015 
2016  for (;;)
2017  {
2018  while (co_IntGetPeekMessage( &msg, 0, WM_MOUSEFIRST, WM_MOUSELAST, PM_REMOVE, FALSE ) ||
2019  co_IntGetPeekMessage( &msg, 0, WM_QUEUESYNC, WM_QUEUESYNC, PM_REMOVE, FALSE ) ||
2020  co_IntGetPeekMessage( &msg, 0, WM_KEYFIRST, WM_KEYLAST, PM_REMOVE, FALSE ) )
2021  {
2022  if ( msg.message == WM_LBUTTONUP )
2023  {
2024  co_UserSetCapture(NULL);
2025  RETURN( FALSE);
2026  }
2027  if ( msg.message == WM_MOUSEMOVE )
2028  {
2029  POINT tmp;
2030  tmp.x = (short)LOWORD(msg.lParam);
2031  tmp.y = (short)HIWORD(msg.lParam);
2032  if( !RECTL_bPointInRect( &rect, tmp.x, tmp.y ) )
2033  {
2034  co_UserSetCapture(NULL);
2035  RETURN( TRUE);
2036  }
2037  }
2038  if ( msg.message == WM_KEYDOWN )
2039  {
2040  if ( msg.wParam == VK_ESCAPE )
2041  {
2042  co_UserSetCapture(NULL);
2043  RETURN( TRUE);
2044  }
2045  }
2046  if ( msg.message == WM_QUEUESYNC )
2047  {
2048  co_HOOK_CallHooks( WH_CBT, HCBT_QS, 0, 0 );
2049  }
2050  }
2051  co_IntWaitMessage(NULL, 0, 0);
2052  }
2053  RETURN( FALSE);
2054 
2055 CLEANUP:
2056  TRACE("Leave NtUserDragDetect, ret=%i\n",_ret_);
2057  UserLeave();
2058  END_CLEANUP;
2059 }
2060 
2061 BOOL APIENTRY
2062 NtUserPostMessage(HWND hWnd,
2063  UINT Msg,
2064  WPARAM wParam,
2065  LPARAM lParam)
2066 {
2067  BOOL ret;
2068 
2069  UserEnterExclusive();
2070 
2071  ret = UserPostMessage(hWnd, Msg, wParam, lParam);
2072 
2073  UserLeave();
2074 
2075  return ret;
2076 }
2077 
2078 BOOL APIENTRY
2079 NtUserPostThreadMessage(DWORD idThread,
2080  UINT Msg,
2081  WPARAM wParam,
2082  LPARAM lParam)
2083 {
2084  BOOL ret = FALSE;
2085  PETHREAD peThread;
2086  PTHREADINFO pThread;
2087  NTSTATUS Status;
2088 
2089  UserEnterExclusive();
2090 
2091  Status = PsLookupThreadByThreadId(UlongToHandle(idThread), &peThread);
2092 
2093  if ( Status == STATUS_SUCCESS )
2094  {
2095  pThread = (PTHREADINFO)peThread->Tcb.Win32Thread;
2096  if( !pThread ||
2097  !pThread->MessageQueue ||
2098  (pThread->TIF_flags & TIF_INCLEANUP))
2099  {
2100  ObDereferenceObject( peThread );
2101  goto exit;
2102  }
2103  ret = UserPostThreadMessage( pThread, Msg, wParam, lParam);
2104  ObDereferenceObject( peThread );
2105  }
2106  else
2107  {
2108  SetLastNtError( Status );
2109  }
2110 exit:
2111  UserLeave();
2112  return ret;
2113 }
2114 
2115 BOOL APIENTRY
2116 NtUserWaitMessage(VOID)
2117 {
2118  BOOL ret;
2119 
2120  UserEnterExclusive();
2121  TRACE("NtUserWaitMessage Enter\n");
2122  ret = co_IntWaitMessage(NULL, 0, 0);
2123  TRACE("NtUserWaitMessage Leave\n");
2124  UserLeave();
2125 
2126  return ret;
2127 }
2128 
2129 BOOL APIENTRY
2130 NtUserGetMessage(PMSG pMsg,
2131  HWND hWnd,
2132  UINT MsgFilterMin,
2133  UINT MsgFilterMax )
2134 {
2135  MSG Msg;
2136  BOOL Ret;
2137 
2138  if ( (MsgFilterMin|MsgFilterMax) & ~WM_MAXIMUM )
2139  {
2140  EngSetLastError(ERROR_INVALID_PARAMETER);
2141  return FALSE;
2142  }
2143 
2144  UserEnterExclusive();
2145 
2146  RtlZeroMemory(&Msg, sizeof(MSG));
2147 
2148  Ret = co_IntGetPeekMessage(&Msg, hWnd, MsgFilterMin, MsgFilterMax, PM_REMOVE, TRUE);
2149 
2150  UserLeave();
2151 
2152  if (Ret)
2153  {
2154  _SEH2_TRY
2155  {
2156  ProbeForWrite(pMsg, sizeof(MSG), 1);
2157  RtlCopyMemory(pMsg, &Msg, sizeof(MSG));
2158  }
2159  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2160  {
2161  SetLastNtError(_SEH2_GetExceptionCode());
2162  Ret = FALSE;
2163  }
2164  _SEH2_END;
2165  }
2166 
2167  if ((INT)Ret != -1)
2168  Ret = Ret ? (WM_QUIT != pMsg->message) : FALSE;
2169 
2170  return Ret;
2171 }
2172 
2173 BOOL APIENTRY
2174 NtUserPeekMessage( PMSG pMsg,
2175  HWND hWnd,
2176  UINT MsgFilterMin,
2177  UINT MsgFilterMax,
2178  UINT RemoveMsg)
2179 {
2180  MSG Msg;
2181  BOOL Ret;
2182 
2183  if ( RemoveMsg & PM_BADMSGFLAGS )
2184  {
2185  EngSetLastError(ERROR_INVALID_FLAGS);
2186  return FALSE;
2187  }
2188 
2189  UserEnterExclusive();
2190 
2191  RtlZeroMemory(&Msg, sizeof(MSG));
2192 
2193  Ret = co_IntGetPeekMessage(&Msg, hWnd, MsgFilterMin, MsgFilterMax, RemoveMsg, FALSE);
2194 
2195  UserLeave();
2196 
2197  if (Ret)
2198  {
2199  _SEH2_TRY
2200  {
2201  ProbeForWrite(pMsg, sizeof(MSG), 1);
2202  RtlCopyMemory(pMsg, &Msg, sizeof(MSG));
2203  }
2204  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2205  {
2206  SetLastNtError(_SEH2_GetExceptionCode());
2207  Ret = FALSE;
2208  }
2209  _SEH2_END;
2210  }
2211 
2212  return Ret;
2213 }
2214 
2215 BOOL APIENTRY
2216 NtUserCallMsgFilter( LPMSG lpmsg, INT code)
2217 {
2218  BOOL Ret = FALSE;
2219  MSG Msg;
2220 
2221  _SEH2_TRY
2222  {
2223  ProbeForRead(lpmsg, sizeof(MSG), 1);
2224  RtlCopyMemory( &Msg, lpmsg, sizeof(MSG));
2225  }
2226  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2227  {
2228  _SEH2_YIELD(return FALSE);
2229  }
2230  _SEH2_END;
2231 
2232  UserEnterExclusive();
2233 
2234  if ( co_HOOK_CallHooks( WH_SYSMSGFILTER, code, 0, (LPARAM)&Msg))
2235  {
2236  Ret = TRUE;
2237  }
2238  else
2239  {
2240  Ret = co_HOOK_CallHooks( WH_MSGFILTER, code, 0, (LPARAM)&Msg);
2241  }
2242 
2243  UserLeave();
2244 
2245  _SEH2_TRY
2246  {
2247  ProbeForWrite(lpmsg, sizeof(MSG), 1);
2248  RtlCopyMemory(lpmsg, &Msg, sizeof(MSG));
2249  }
2250  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2251  {
2252  Ret = FALSE;
2253  }
2254  _SEH2_END;
2255 
2256  return Ret;
2257 }
2258 
2259 LRESULT APIENTRY
2260 NtUserDispatchMessage(PMSG UnsafeMsgInfo)
2261 {
2262  LRESULT Res = 0;
2263  MSG SafeMsg;
2264 
2265  _SEH2_TRY
2266  {
2267  ProbeForRead(UnsafeMsgInfo, sizeof(MSG), 1);
2268  RtlCopyMemory(&SafeMsg, UnsafeMsgInfo, sizeof(MSG));
2269  }
2270  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2271  {
2272  SetLastNtError(_SEH2_GetExceptionCode());
2273  _SEH2_YIELD(return FALSE);
2274  }
2275  _SEH2_END;
2276 
2277  UserEnterExclusive();
2278 
2279  Res = IntDispatchMessage(&SafeMsg);
2280 
2281  UserLeave();
2282  return Res;
2283 }
2284 
2285 BOOL APIENTRY
2286 NtUserTranslateMessage(LPMSG lpMsg, UINT flags)
2287 {
2288  MSG SafeMsg;
2289  BOOL Ret;
2290  PWND pWnd;
2291 
2292  _SEH2_TRY
2293  {
2294  ProbeForRead(lpMsg, sizeof(MSG), 1);
2295  RtlCopyMemory(&SafeMsg, lpMsg, sizeof(MSG));
2296  }
2297  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2298  {
2299  SetLastNtError(_SEH2_GetExceptionCode());
2300  _SEH2_YIELD(return FALSE);
2301  }
2302  _SEH2_END;
2303 
2304  UserEnterExclusive();
2305  pWnd = UserGetWindowObject(SafeMsg.hwnd);
2306  if (pWnd) // Must have a window!
2307  {
2308  Ret = IntTranslateKbdMessage(&SafeMsg, flags);
2309  }
2310  else
2311  {
2312  TRACE("No Window for Translate. hwnd 0x%p Msg %u\n", SafeMsg.hwnd, SafeMsg.message);
2313  Ret = FALSE;
2314  }
2315  UserLeave();
2316 
2317  return Ret;
2318 }
2319 
2320 LRESULT APIENTRY ScrollBarWndProc(HWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam);
2321 
2322 BOOL APIENTRY
2323 NtUserMessageCall( HWND hWnd,
2324  UINT Msg,
2325  WPARAM wParam,
2326  LPARAM lParam,
2327  ULONG_PTR ResultInfo,
2328  DWORD dwType, // fnID?
2329  BOOL Ansi)
2330 {
2331  LRESULT lResult = 0;
2332  BOOL Ret = FALSE;
2333  PWND Window = NULL;
2334  USER_REFERENCE_ENTRY Ref;
2335 
2336  UserEnterExclusive();
2337 
2338  switch(dwType)
2339  {
2340  case FNID_SCROLLBAR:
2341  {
2342  lResult = ScrollBarWndProc(hWnd, Msg, wParam, lParam);
2343  break;
2344  }
2345  case FNID_DESKTOP:
2346  {
2347  Window = UserGetWindowObject(hWnd);
2348  if (Window)
2349  {
2350  //ERR("FNID_DESKTOP IN\n");
2351  Ret = DesktopWindowProc(Window, Msg, wParam, lParam, &lResult);
2352  //ERR("FNID_DESKTOP OUT\n");
2353  }
2354  break;
2355  }
2356  case FNID_MENU:
2357  {
2358  Window = UserGetWindowObject(hWnd);
2359  if (Window)
2360  {
2361  Ret = PopupMenuWndProc( Window, Msg, wParam, lParam, &lResult);
2362  }
2363  break;
2364  }
2365  case FNID_MESSAGEWND:
2366  {
2367  Window = UserGetWindowObject(hWnd);
2368  if (Window)
2369  {
2370  Ret = !UserMessageWindowProc(Window, Msg, wParam, lParam, &lResult);
2371  }
2372  break;
2373  }
2374  case FNID_DEFWINDOWPROC:
2375  /* Validate input */
2376  if (hWnd)
2377  {
2378  Window = UserGetWindowObject(hWnd);
2379  if (!Window)
2380  {
2381  UserLeave();
2382  return FALSE;
2383  }
2384  UserRefObjectCo(Window, &Ref);
2385  }
2386  lResult = IntDefWindowProc(Window, Msg, wParam, lParam, Ansi);
2387  Ret = TRUE;
2388  if (hWnd)
2389  UserDerefObjectCo(Window);
2390  break;
2391  case FNID_SENDNOTIFYMESSAGE:
2392  Ret = UserSendNotifyMessage(hWnd, Msg, wParam, lParam);
2393  break;
2394  case FNID_BROADCASTSYSTEMMESSAGE:
2395  {
2396  BROADCASTPARM parm, *retparam;
2397  DWORD_PTR RetVal = 0;
2398 
2399  if (ResultInfo)
2400  {
2401  _SEH2_TRY
2402  {
2403  ProbeForWrite((PVOID)ResultInfo, sizeof(BROADCASTPARM), 1);
2404  RtlCopyMemory(&parm, (PVOID)ResultInfo, sizeof(BROADCASTPARM));
2405  }
2406  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2407  {
2408  _SEH2_YIELD(break);
2409  }
2410  _SEH2_END;
2411  }
2412  else
2413  break;
2414 
2415  if ( parm.recipients & BSM_ALLDESKTOPS ||
2416  parm.recipients == BSM_ALLCOMPONENTS )
2417  {
2418  PLIST_ENTRY DesktopEntry;
2419  PDESKTOP rpdesk;
2420  HWND *List, hwndDenied = NULL;
2421  HDESK hDesk = NULL;
2422  PWND pwnd, pwndDesk;
2423  ULONG i;
2424  UINT fuFlags;
2425 
2426  for (DesktopEntry = InputWindowStation->DesktopListHead.Flink;
2427  DesktopEntry != &InputWindowStation->DesktopListHead;
2428  DesktopEntry = DesktopEntry->Flink)
2429  {
2430  rpdesk = CONTAINING_RECORD(DesktopEntry, DESKTOP, ListEntry);
2431  pwndDesk = rpdesk->pDeskInfo->spwnd;
2432  List = IntWinListChildren(pwndDesk);
2433 
2434  if (parm.flags & BSF_QUERY)
2435  {
2436  if (List != NULL)
2437  {
2438  if (parm.flags & BSF_FORCEIFHUNG || parm.flags & BSF_NOHANG)
2439  {
2440  fuFlags = SMTO_ABORTIFHUNG;
2441  }
2442  else if (parm.flags & BSF_NOTIMEOUTIFNOTHUNG)
2443  {
2444  fuFlags = SMTO_NOTIMEOUTIFNOTHUNG;
2445  }
2446  else
2447  {
2448  fuFlags = SMTO_NORMAL;
2449  }
2450  co_IntSendMessageTimeout( UserHMGetHandle(pwndDesk),
2451  Msg,
2452  wParam,
2453  lParam,
2454  fuFlags,
2455  2000,
2456  &RetVal);
2457  Ret = TRUE;
2458  for (i = 0; List[i]; i++)
2459  {
2460  pwnd = UserGetWindowObject(List[i]);
2461  if (!pwnd) continue;
2462 
2463  if ( pwnd->fnid == FNID_MENU ||
2464  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2465  continue;
2466 
2467  if ( parm.flags & BSF_IGNORECURRENTTASK )
2468  {
2469  if ( pwnd->head.pti == gptiCurrent )
2470  continue;
2471  }
2472  co_IntSendMessageTimeout( List[i],
2473  Msg,
2474  wParam,
2475  lParam,
2476  fuFlags,
2477  2000,
2478  &RetVal);
2479 
2480  if (!RetVal && EngGetLastError() == ERROR_TIMEOUT)
2481  {
2482  if (!(parm.flags & BSF_FORCEIFHUNG))
2483  Ret = FALSE;
2484  }
2485  if (RetVal == BROADCAST_QUERY_DENY)
2486  {
2487  hwndDenied = List[i];
2488  hDesk = UserHMGetHandle(pwndDesk);
2489  Ret = FALSE;
2490  }
2491  }
2492  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2493  _SEH2_TRY
2494  {
2495  retparam = (PBROADCASTPARM) ResultInfo;
2496  retparam->hDesk = hDesk;
2497  retparam->hWnd = hwndDenied;
2498  }
2499  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2500  {
2501  _SEH2_YIELD(break);
2502  }
2503  _SEH2_END;
2504  if (!Ret) break; // Have a hit! Let everyone know!
2505  }
2506  }
2507  else if (parm.flags & BSF_POSTMESSAGE)
2508  {
2509  if (List != NULL)
2510  {
2511  UserPostMessage(UserHMGetHandle(pwndDesk), Msg, wParam, lParam);
2512 
2513  for (i = 0; List[i]; i++)
2514  {
2515  pwnd = UserGetWindowObject(List[i]);
2516  if (!pwnd) continue;
2517 
2518  if ( pwnd->fnid == FNID_MENU ||
2519  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2520  continue;
2521 
2522  if ( parm.flags & BSF_IGNORECURRENTTASK )
2523  {
2524  if ( pwnd->head.pti == gptiCurrent )
2525  continue;
2526  }
2527  UserPostMessage(List[i], Msg, wParam, lParam);
2528  }
2529  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2530  }
2531  Ret = TRUE;
2532  }
2533  else
2534  {
2535  if (List != NULL)
2536  {
2537  UserSendNotifyMessage(UserHMGetHandle(pwndDesk), Msg, wParam, lParam);
2538 
2539  for (i = 0; List[i]; i++)
2540  {
2541  pwnd = UserGetWindowObject(List[i]);
2542  if (!pwnd) continue;
2543 
2544  if ( pwnd->fnid == FNID_MENU ||
2545  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2546  continue;
2547 
2548  if ( parm.flags & BSF_IGNORECURRENTTASK )
2549  {
2550  if ( pwnd->head.pti == gptiCurrent )
2551  continue;
2552  }
2553  UserSendNotifyMessage(List[i], Msg, wParam, lParam);
2554  }
2555  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2556  }
2557  Ret = TRUE;
2558  }
2559  }
2560  }
2561  else if (parm.recipients & BSM_APPLICATIONS)
2562  {
2563  HWND *List, hwndDenied = NULL;
2564  HDESK hDesk = NULL;
2565  PWND pwnd, pwndDesk;
2566  ULONG i;
2567  UINT fuFlags;
2568 
2569  pwndDesk = UserGetDesktopWindow();
2570  List = IntWinListChildren(pwndDesk);
2571 
2572  if (parm.flags & BSF_QUERY)
2573  {
2574  if (List != NULL)
2575  {
2576  if (parm.flags & BSF_FORCEIFHUNG || parm.flags & BSF_NOHANG)
2577  {
2578  fuFlags = SMTO_ABORTIFHUNG;
2579  }
2580  else if (parm.flags & BSF_NOTIMEOUTIFNOTHUNG)
2581  {
2582  fuFlags = SMTO_NOTIMEOUTIFNOTHUNG;
2583  }
2584  else
2585  {
2586  fuFlags = SMTO_NORMAL;
2587  }
2588  co_IntSendMessageTimeout( UserHMGetHandle(pwndDesk),
2589  Msg,
2590  wParam,
2591  lParam,
2592  fuFlags,
2593  2000,
2594  &RetVal);
2595  Ret = TRUE;
2596  for (i = 0; List[i]; i++)
2597  {
2598  pwnd = UserGetWindowObject(List[i]);
2599  if (!pwnd) continue;
2600 
2601  if ( pwnd->fnid == FNID_MENU ||
2602  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2603  continue;
2604 
2605  if ( parm.flags & BSF_IGNORECURRENTTASK )
2606  {
2607  if ( pwnd->head.pti == gptiCurrent )
2608  continue;
2609  }
2610  co_IntSendMessageTimeout( List[i],
2611  Msg,
2612  wParam,
2613  lParam,
2614  fuFlags,
2615  2000,
2616  &RetVal);
2617 
2618  if (!RetVal && EngGetLastError() == ERROR_TIMEOUT)
2619  {
2620  if (!(parm.flags & BSF_FORCEIFHUNG))
2621  Ret = FALSE;
2622  }
2623  if (RetVal == BROADCAST_QUERY_DENY)
2624  {
2625  hwndDenied = List[i];
2626  hDesk = UserHMGetHandle(pwndDesk);
2627  Ret = FALSE;
2628  }
2629  }
2630  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2631  _SEH2_TRY
2632  {
2633  retparam = (PBROADCASTPARM) ResultInfo;
2634  retparam->hDesk = hDesk;
2635  retparam->hWnd = hwndDenied;
2636  }
2637  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2638  {
2639  _SEH2_YIELD(break);
2640  }
2641  _SEH2_END;
2642  }
2643  }
2644  else if (parm.flags & BSF_POSTMESSAGE)
2645  {
2646  if (List != NULL)
2647  {
2648  UserPostMessage(UserHMGetHandle(pwndDesk), Msg, wParam, lParam);
2649 
2650  for (i = 0; List[i]; i++)
2651  {
2652  pwnd = UserGetWindowObject(List[i]);
2653  if (!pwnd) continue;
2654 
2655  if ( pwnd->fnid == FNID_MENU ||
2656  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2657  continue;
2658 
2659  if ( parm.flags & BSF_IGNORECURRENTTASK )
2660  {
2661  if ( pwnd->head.pti == gptiCurrent )
2662  continue;
2663  }
2664  UserPostMessage(List[i], Msg, wParam, lParam);
2665  }
2666  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2667  }
2668  Ret = TRUE;
2669  }
2670  else
2671  {
2672  if (List != NULL)
2673  {
2674  UserSendNotifyMessage(UserHMGetHandle(pwndDesk), Msg, wParam, lParam);
2675 
2676  for (i = 0; List[i]; i++)
2677  {
2678  pwnd = UserGetWindowObject(List[i]);
2679  if (!pwnd) continue;
2680 
2681  if ( pwnd->fnid == FNID_MENU ||
2682  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2683  continue;
2684 
2685  if ( parm.flags & BSF_IGNORECURRENTTASK )
2686  {
2687  if ( pwnd->head.pti == gptiCurrent )
2688  continue;
2689  }
2690  UserSendNotifyMessage(List[i], Msg, wParam, lParam);
2691  }
2692  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2693  }
2694  Ret = TRUE;
2695  }
2696  }
2697  }
2698  break;
2699  case FNID_SENDMESSAGECALLBACK:
2700  {
2701  CALL_BACK_INFO CallBackInfo;
2702  ULONG_PTR uResult;
2703 
2704  _SEH2_TRY
2705  {
2706  ProbeForRead((PVOID)ResultInfo, sizeof(CALL_BACK_INFO), 1);
2707  RtlCopyMemory(&CallBackInfo, (PVOID)ResultInfo, sizeof(CALL_BACK_INFO));
2708  }
2709  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2710  {
2711  _SEH2_YIELD(break);
2712  }
2713  _SEH2_END;
2714 
2715  if (is_pointer_message(Msg))
2716  {
2717  EngSetLastError(ERROR_MESSAGE_SYNC_ONLY );
2718  break;
2719  }
2720 
2721  if (!(Ret = co_IntSendMessageWithCallBack(hWnd, Msg, wParam, lParam,
2722  CallBackInfo.CallBack, CallBackInfo.Context, &uResult)))
2723  {
2724  ERR("Callback failure!\n");
2725  }
2726  }
2727  break;
2728  case FNID_SENDMESSAGE:
2729  {
2730  lResult = co_IntDoSendMessage(hWnd, Msg, wParam, lParam, 0);
2731  Ret = TRUE;
2732 
2733  if (ResultInfo)
2734  {
2735  _SEH2_TRY
2736  {
2737  ProbeForWrite((PVOID)ResultInfo, sizeof(ULONG_PTR), 1);
2738  RtlCopyMemory((PVOID)ResultInfo, &lResult, sizeof(ULONG_PTR));
2739  }
2740  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2741  {
2742  Ret = FALSE;
2743  _SEH2_YIELD(break);
2744  }
2745  _SEH2_END;
2746  }
2747  break;
2748  }
2749  case FNID_SENDMESSAGEFF:
2750  case FNID_SENDMESSAGEWTOOPTION:
2751  {
2752  DOSENDMESSAGE dsm, *pdsm = (PDOSENDMESSAGE)ResultInfo;
2753  if (ResultInfo)
2754  {
2755  _SEH2_TRY
2756  {
2757  ProbeForRead(pdsm, sizeof(DOSENDMESSAGE), 1);
2758  RtlCopyMemory(&dsm, pdsm, sizeof(DOSENDMESSAGE));
2759  }
2760  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2761  {
2762  _SEH2_YIELD(break);
2763  }
2764  _SEH2_END;
2765  }
2766 
2767  Ret = co_IntDoSendMessage( hWnd, Msg, wParam, lParam, pdsm ? &dsm : NULL );
2768 
2769  if (pdsm)
2770  {
2771  _SEH2_TRY
2772  {
2773  ProbeForWrite(pdsm, sizeof(DOSENDMESSAGE), 1);
2774  RtlCopyMemory(pdsm, &dsm, sizeof(DOSENDMESSAGE));
2775  }
2776  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2777  {
2778  Ret = FALSE;
2779  _SEH2_YIELD(break);
2780  }
2781  _SEH2_END;
2782  }
2783  break;
2784  }
2785  // CallNextHook bypass.
2786  case FNID_CALLWNDPROC:
2787  case FNID_CALLWNDPROCRET:
2788  {
2789  PTHREADINFO pti;
2790  PCLIENTINFO ClientInfo;
2791  PHOOK NextObj, Hook;
2792 
2793  pti = GetW32ThreadInfo();
2794 
2795  Hook = pti->sphkCurrent;
2796 
2797  if (!Hook) break;
2798 
2799  NextObj = Hook->phkNext;
2800  ClientInfo = pti->pClientInfo;
2801  _SEH2_TRY
2802  {
2803  ClientInfo->phkCurrent = NextObj;
2804  }
2805  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2806  {
2807  ClientInfo = NULL;
2808  }
2809  _SEH2_END;
2810 
2811  if (!ClientInfo || !NextObj) break;
2812 
2813  NextObj->phkNext = IntGetNextHook(NextObj);
2814 
2815  if ( Hook->HookId == WH_CALLWNDPROC)
2816  {
2817  CWPSTRUCT CWP;
2818  CWP.hwnd = hWnd;
2819  CWP.message = Msg;
2820  CWP.wParam = wParam;
2821  CWP.lParam = lParam;
2822  TRACE("WH_CALLWNDPROC: Hook %p NextHook %p\n", Hook, NextObj);
2823 
2824  lResult = co_IntCallHookProc( Hook->HookId,
2825  HC_ACTION,
2826  ((ClientInfo->CI_flags & CI_CURTHPRHOOK) ? 1 : 0),
2827  (LPARAM)&CWP,
2828  Hook->Proc,
2829  Hook->ihmod,
2830  Hook->offPfn,
2831  Hook->Ansi,
2832  &Hook->ModuleName);
2833  }
2834  else
2835  {
2836  CWPRETSTRUCT CWPR;
2837  CWPR.hwnd = hWnd;
2838  CWPR.message = Msg;
2839  CWPR.wParam = wParam;
2840  CWPR.lParam = lParam;
2841  CWPR.lResult = ClientInfo->dwHookData;
2842 
2843  lResult = co_IntCallHookProc( Hook->HookId,
2844  HC_ACTION,
2845  ((ClientInfo->CI_flags & CI_CURTHPRHOOK) ? 1 : 0),
2846  (LPARAM)&CWPR,
2847  Hook->Proc,
2848  Hook->ihmod,
2849  Hook->offPfn,
2850  Hook->Ansi,
2851  &Hook->ModuleName);
2852  }
2853  }
2854  break;
2855  }
2856 
2857  switch(dwType)
2858  {
2859  case FNID_DEFWINDOWPROC:
2860  case FNID_CALLWNDPROC:
2861  case FNID_CALLWNDPROCRET:
2862  case FNID_SCROLLBAR:
2863  case FNID_DESKTOP:
2864  case FNID_MENU:
2865  if (ResultInfo)
2866  {
2867  _SEH2_TRY
2868  {
2869  ProbeForWrite((PVOID)ResultInfo, sizeof(LRESULT), 1);
2870  RtlCopyMemory((PVOID)ResultInfo, &lResult, sizeof(LRESULT));
2871  }
2872  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2873  {
2874  Ret = FALSE;
2875  }
2876  _SEH2_END;
2877  }
2878  break;
2879  default:
2880  break;
2881  }
2882 
2883  UserLeave();
2884 
2885  return Ret;
2886 }
2887 
2888 #define INFINITE 0xFFFFFFFF
2889 #define WAIT_FAILED ((DWORD)0xFFFFFFFF)
2890 
2891 DWORD
2892 APIENTRY
2893 NtUserWaitForInputIdle( IN HANDLE hProcess,
2894  IN DWORD dwMilliseconds,
2895  IN BOOL Unknown2)
2896 {
2897  PEPROCESS Process;
2898  PPROCESSINFO W32Process;
2899  PTHREADINFO pti;
2900  NTSTATUS Status;
2901  HANDLE Handles[3];
2902  LARGE_INTEGER Timeout;
2903  KAPC_STATE ApcState;
2904 
2905  UserEnterExclusive();
2906 
2907  Status = ObReferenceObjectByHandle(hProcess,
2908  PROCESS_QUERY_INFORMATION,
2909  *PsProcessType,
2910  UserMode,
2911  (PVOID*)&Process,
2912  NULL);
2913 
2914  if (!NT_SUCCESS(Status))
2915  {
2916  UserLeave();
2917  SetLastNtError(Status);
2918  return WAIT_FAILED;
2919  }
2920 
2921  pti = PsGetCurrentThreadWin32Thread();
2922 
2923  W32Process = (PPROCESSINFO)Process->Win32Process;
2924 
2925  if ( PsGetProcessExitProcessCalled(Process) ||
2926  !W32Process ||
2927  pti->ppi == W32Process)
2928  {
2929  ObDereferenceObject(Process);
2930  UserLeave();
2931  EngSetLastError(ERROR_INVALID_PARAMETER);
2932  return WAIT_FAILED;
2933  }
2934 
2935  Handles[0] = Process;
2936  Handles[1] = W32Process->InputIdleEvent;
2937  Handles[2] = pti->pEventQueueServer; // IntMsqSetWakeMask returns hEventQueueClient
2938 
2939  if (!Handles[1])
2940  {
2941  ObDereferenceObject(Process);
2942  UserLeave();
2943  return STATUS_SUCCESS; /* no event to wait on */
2944  }
2945 
2946  if (dwMilliseconds != INFINITE)
2947  Timeout.QuadPart = (LONGLONG) dwMilliseconds * (LONGLONG) -10000;
2948 
2949  KeStackAttachProcess(&Process->Pcb, &ApcState);
2950 
2951  W32Process->W32PF_flags |= W32PF_WAITFORINPUTIDLE;
2952  for (pti = W32Process->ptiList; pti; pti = pti->ptiSibling)
2953  {
2954  pti->TIF_flags |= TIF_WAITFORINPUTIDLE;
2955  pti->pClientInfo->dwTIFlags = pti->TIF_flags;
2956  }
2957 
2958  KeUnstackDetachProcess(&ApcState);
2959 
2960  TRACE("WFII: ppi %p\n", W32Process);
2961  TRACE("WFII: waiting for %p\n", Handles[1] );
2962 
2963  /*
2964  * We must add a refcount to our current PROCESSINFO,
2965  * because anything could happen (including process death) we're leaving win32k
2966  */
2967  IntReferenceProcessInfo(W32Process);
2968 
2969  do
2970  {
2971  UserLeave();
2972  Status = KeWaitForMultipleObjects( 3,
2973  Handles,
2974  WaitAny,
2975  UserRequest,
2976  UserMode,
2977  FALSE,
2978  dwMilliseconds == INFINITE ? NULL : &Timeout,
2979  NULL);
2980  UserEnterExclusive();
2981 
2982  if (!NT_SUCCESS(Status))
2983  {
2984  SetLastNtError(Status);
2985  Status = WAIT_FAILED;
2986  goto WaitExit;
2987  }
2988 
2989  switch (Status)
2990  {
2991  case STATUS_WAIT_0:
2992  goto WaitExit;
2993 
2994  case STATUS_WAIT_2:
2995  {
2996  MSG Msg;
2997  co_IntGetPeekMessage( &Msg, 0, 0, 0, PM_REMOVE | PM_QS_SENDMESSAGE, FALSE);
2998  ERR("WFII: WAIT 2\n");
2999  }
3000  break;
3001 
3002  case STATUS_TIMEOUT:
3003  ERR("WFII: timeout\n");
3004  case WAIT_FAILED:
3005  goto WaitExit;
3006 
3007  default:
3008  ERR("WFII: finished\n");
3009  Status = STATUS_SUCCESS;
3010  goto WaitExit;
3011  }
3012  }
3013  while (TRUE);
3014 
3015 WaitExit:
3016  for (pti = W32Process->ptiList; pti; pti = pti->ptiSibling)
3017  {
3018  pti->TIF_flags &= ~TIF_WAITFORINPUTIDLE;
3019  pti->pClientInfo->dwTIFlags = pti->TIF_flags;
3020  }
3021  W32Process->W32PF_flags &= ~W32PF_WAITFORINPUTIDLE;
3022  IntDereferenceProcessInfo(W32Process);
3023  ObDereferenceObject(Process);
3024  UserLeave();
3025  return Status;
3026 }
3027 
3028 /* EOF */
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GLsizei GLenum const GLvoid GLsizei GLenum GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLint GLint GLint GLshort GLshort GLshort GLubyte GLubyte GLubyte GLuint GLuint GLuint GLushort GLushort GLushort GLbyte GLbyte GLbyte GLbyte GLdouble GLdouble GLdouble GLdouble GLfloat GLfloat GLfloat GLfloat GLint GLint GLint GLint GLshort GLshort GLshort GLshort GLubyte GLubyte GLubyte GLubyte GLuint GLuint GLuint GLuint GLushort GLushort GLushort GLushort GLboolean const GLdouble const GLfloat const GLint const GLshort const GLbyte const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLdouble const GLfloat const GLfloat const GLint const GLint const GLshort const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort const GLdouble const GLfloat const GLint const GLshort GLenum GLenum GLenum GLfloat GLenum GLint GLenum GLenum GLenum GLfloat GLenum GLenum GLint GLenum GLfloat GLenum GLint GLint GLushort GLenum GLenum GLfloat GLenum GLenum GLint GLfloat const GLubyte GLenum GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLint GLint GLsizei GLsizei GLint GLenum GLenum const GLvoid GLenum GLenum const GLfloat GLenum GLenum const GLint GLenum GLenum const GLdouble GLenum GLenum const GLfloat GLenum GLenum const GLint GLsizei GLuint GLfloat GLuint GLbitfield GLfloat GLint GLuint GLboolean GLenum GLfloat GLenum GLbitfield GLenum GLfloat GLfloat GLint GLint const GLfloat GLenum GLfloat GLfloat GLint GLint GLfloat GLfloat GLint GLint const GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat GLint GLfloat GLfloat const GLdouble const GLfloat const GLdouble const GLfloat GLint i
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CONTAINING_RECORD
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NtUserMessageCall
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struct tagHELPINFO HELPINFO
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SENDASYNCPROC CallBack
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RtlEqualMemory
NTSYSAPI ULONG NTAPI RtlEqualMemory(CONST VOID *Source1, CONST VOID *Source2, ULONG Length)
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Definition: winuser.h:3566
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Implementation of the Explorer desktop window.
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POOL_TYPE
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UlongToHandle
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#define WM_WINDOWPOSCHANGING
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PKEVENT pEventQueueServer
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WM_MOUSELAST
#define WM_MOUSELAST
Definition: winuser.h:1783
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void(CALLBACK * SENDASYNCPROC)(HWND, UINT, ULONG_PTR, LRESULT)
Definition: winuser.h:2891
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LRESULT FASTCALL co_IntSendMessageTimeout(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, UINT uFlags, UINT uTimeout, ULONG_PTR *uResult)
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BOOL APIENTRY NtUserDragDetect(HWND hWnd, POINT pt)
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#define QS_EVENT
Definition: undocuser.h:95
IntDdeGetMessageHook
BOOL APIENTRY IntDdeGetMessageHook(PMSG pMsg, LONG_PTR ExtraInfo)
Definition: dde.c:326
DWORD
unsigned long DWORD
Definition: ntddk_ex.h:95
NtUserCallMsgFilter
BOOL APIENTRY NtUserCallMsgFilter(LPMSG lpmsg, INT code)
Definition: message.c:2216
DECLARE_RETURN
#define DECLARE_RETURN(type)
Definition: ntuser.h:3
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#define WM_KEYLAST
Definition: winuser.h:1710
WM_MEASUREITEM
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Definition: winuser.h:1628
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LPARAM lParam
Definition: winuser.h:3000
MsqPostMessage
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Definition: msgqueue.c:1338
FNID_SENDMESSAGECALLBACK
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Definition: msgqueue.h:20
MMS_SIZE_LPARAMSZ
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Definition: ntuser.h:227
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Definition: winuser.h:3001
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Definition: desktop.h:223
MsqPeekMessage
BOOLEAN APIENTRY MsqPeekMessage(IN PTHREADINFO pti, IN BOOLEAN Remove, IN PWND Window, IN UINT MsgFilterLow, IN UINT MsgFilterHigh, IN UINT QSflags, OUT LONG_PTR *ExtraInfo, OUT DWORD *dwQEvent, OUT PMSG Message)
Definition: msgqueue.c:2107
KeWaitForMultipleObjects
NTSTATUS NTAPI KeWaitForMultipleObjects(IN ULONG Count, IN PVOID Object[], IN WAIT_TYPE WaitType, IN KWAIT_REASON WaitReason, IN KPROCESSOR_MODE WaitMode, IN BOOLEAN Alertable, IN PLARGE_INTEGER Timeout OPTIONAL, OUT PKWAIT_BLOCK WaitBlockArray OPTIONAL)
Definition: wait.c:586
ICLS_SWITCH
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struct _CLIENTINFO * pClientInfo
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Window
int Window
Definition: x11stubs.h:26
POSTEVENT_NWE
#define POSTEVENT_NWE
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co_IntCallSentMessageCallback
VOID APIENTRY co_IntCallSentMessageCallback(SENDASYNCPROC CompletionCallback, HWND hWnd, UINT Msg, ULONG_PTR CompletionCallbackContext, LRESULT Result)
Definition: callback.c:245
PostTimerMessages
BOOL FASTCALL PostTimerMessages(PWND Window)
Definition: timer.c:395
flags
GLbitfield flags
Definition: glext.h:7161
PsGetProcessExitProcessCalled
BOOLEAN NTAPI PsGetProcessExitProcessCalled(PEPROCESS Process)
Definition: process.c:1043
IntCoalesceMouseMove
VOID FASTCALL IntCoalesceMouseMove(PTHREADINFO pti)
Definition: msgqueue.c:551
UserMessageWindowProc
BOOL FASTCALL UserMessageWindowProc(PWND pwnd, UINT Msg, WPARAM wParam, LPARAM lParam, LRESULT *lResult)
Definition: desktop.c:1487
WM_PAINT
#define WM_PAINT
Definition: winuser.h:1602
HCBT_QS
#define HCBT_QS
Definition: winuser.h:57
ASSERT
ASSERT((InvokeOnSuccess||InvokeOnError||InvokeOnCancel) ?(CompletionRoutine !=NULL) :TRUE)
Message
CHAR Message[80]
Definition: alive.c:5
ExAllocatePoolWithTag
#define ExAllocatePoolWithTag(hernya, size, tag)
Definition: env_spec_w32.h:350
WM_MDIGETACTIVE
#define WM_MDIGETACTIVE
Definition: winuser.h:1803
co_HOOK_CallHooks
LRESULT APIENTRY co_HOOK_CallHooks(INT HookId, INT Code, WPARAM wParam, LPARAM lParam)
Definition: hook.c:1103
RECTL_bPointInRect
FORCEINLINE BOOL RECTL_bPointInRect(_In_ const RECTL *prcl, _In_ INT x, _In_ INT y)
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UserGetDesktopWindow
PWND FASTCALL UserGetDesktopWindow(VOID)
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FNID_SENDNOTIFYMESSAGE
#define FNID_SENDNOTIFYMESSAGE
Definition: ntuser.h:851
WM_DDE_LAST
#define WM_DDE_LAST
Definition: dde.h:46
ret
int ret
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EM_SETRECTNP
#define EM_SETRECTNP
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LONG timeLast
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tagCWPSTRUCT::message
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Definition: winuser.h:3002
AllocateUserMessage
PUSER_SENT_MESSAGE FASTCALL AllocateUserMessage(BOOL KEvent)
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WM_MOVING
#define WM_MOVING
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ProbeForRead
VOID NTAPI ProbeForRead(IN CONST VOID *Address, IN SIZE_T Length, IN ULONG Alignment)
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struct tagMINMAXINFO MINMAXINFO
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static const WCHAR L[]
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WNDS2_WMPAINTSENT
#define WNDS2_WMPAINTSENT
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#define WH_CALLWNDPROC
Definition: winuser.h:34
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#define CI_CURTHPRHOOK
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static MSGMEMORY g_MsgMemory[]
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SBM_GETRANGE
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CB_SELECTSTRING
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Definition: winuser.h:1942
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BOOL APIENTRY IntInitMessagePumpHook(VOID)
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#define WM_DRAGLOOP
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IntWinListChildren
HWND *FASTCALL IntWinListChildren(PWND Window)
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#define PAGE_SIZE
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_DESKTOPINFO::spwnd
struct _WND * spwnd
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EM_SETTABSTOPS
#define EM_SETTABSTOPS
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WM_MAXIMUM
#define WM_MAXIMUM
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struct tagHOOK * sphkCurrent
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lParamMemorySize
UINT lParamMemorySize(UINT Msg, WPARAM wParam, LPARAM lParam)
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tagMSGMEMORY::Size
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Definition: message.c:116
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IN PVOID IN PVOID IN USHORT IN USHORT Size
Definition: pci.h:359
DWORD_PTR
uint32_t DWORD_PTR
Definition: typedefs.h:63
SetLastNtError
VOID FASTCALL SetLastNtError(NTSTATUS Status)
Definition: error.c:36
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LRESULT APIENTRY NtUserDispatchMessage(PMSG UnsafeMsgInfo)
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#define WM_COPYGLOBALDATA
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struct tagDOSENDMESSAGE * PDOSENDMESSAGE
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#define FNID_CALLWNDPROC
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#define TIF_MSGPOSCHANGED
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BOOL FASTCALL IntMakeHungWindowGhosted(HWND hwndHung)
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LRESULT APIENTRY ScrollBarWndProc(HWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam)
Definition: scrollbar.c:1147
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#define STATUS_USER_APC
Definition: ntstatus.h:78
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Definition: debug.h:109
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Definition: ntuser.h:657
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struct _USER_MESSAGE_QUEUE * MessageQueue
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BOOL FASTCALL IntDdeSendMessageHook(PWND pWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
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VOID FASTCALL UserLeave(VOID)
Definition: ntuser.c:255
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ULONG_PTR SIZE_T
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#define FNID_BROADCASTSYSTEMMESSAGE
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#define MSQ_NORMAL
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static int is_pointer_message(UINT message)
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static ULONG Timeout
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#define MMS_FLAG_READ
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BOOL APIENTRY co_IntGetPeekMessage(PMSG pMsg, HWND hWnd, UINT MsgFilterMin, UINT MsgFilterMax, UINT RemoveMsg, BOOL bGMSG)
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VOID FASTCALL IdlePong(VOID)
Definition: message.c:545
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NTSTATUS FASTCALL IntCleanupMessageImpl(VOID)
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#define FNID_SCROLLBAR
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struct tagNCCALCSIZE_PARAMS NCCALCSIZE_PARAMS
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#define HC_ACTION
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#define MMS_SIZE_WPARAMWCHAR
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VOID NTAPI KeUnstackDetachProcess(IN PRKAPC_STATE ApcState)
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#define QS_ALLINPUT
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#define WM_LBUTTONUP
Definition: winuser.h:1759
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_Out_ PKAPC_STATE ApcState
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struct tagMEASUREITEMSTRUCT MEASUREITEMSTRUCT
co_IntSendMessageNoWait
LRESULT FASTCALL co_IntSendMessageNoWait(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
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#define QS_POSTMESSAGE
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__int3264 LONG_PTR
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struct tagSTYLESTRUCT STYLESTRUCT
UINT
unsigned int UINT
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WM_MOUSEMOVE
#define WM_MOUSEMOVE
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PVOID NTAPI PsGetCurrentProcessWin32Process(VOID)
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VOID FASTCALL IntPaintWindow(PWND Window)
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#define WNDS_INTERNALPAINT
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#define USERTAG_SWP
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#define POSTEVENT_DAW
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