ReactOS  0.4.14-dev-815-ge410a12
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  /* Update the last message-queue access time */
833  pti->pcti->timeLastRead = EngGetTickCount32();
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  goto GotMessage;
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  goto GotMessage;
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  goto GotMessage;
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  goto GotMessage;
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 GotMessage:
966  /* Update the last message-queue access time */
967  pti->pcti->timeLastRead = EngGetTickCount32();
968  return TRUE;
969 }
970 
971 BOOL FASTCALL
972 co_IntWaitMessage( PWND Window,
973  UINT MsgFilterMin,
974  UINT MsgFilterMax )
975 {
976  PTHREADINFO pti;
977  NTSTATUS Status = STATUS_SUCCESS;
978  MSG Msg;
979  LONG_PTR ExtraInfo = 0;
980 
981  pti = PsGetCurrentThreadWin32Thread();
982 
983  do
984  {
985  if ( co_IntPeekMessage( &Msg, // Dont reenter!
986  Window,
987  MsgFilterMin,
988  MsgFilterMax,
989  MAKELONG( PM_NOREMOVE, GetWakeMask( MsgFilterMin, MsgFilterMax)),
990  &ExtraInfo,
991  TRUE ) ) // act like GetMessage.
992  {
993  return TRUE;
994  }
995 
996  /* Nothing found. Wait for new messages. */
997  Status = co_MsqWaitForNewMessages( pti,
998  Window,
999  MsgFilterMin,
1000  MsgFilterMax);
1001  if (!NT_SUCCESS(Status))
1002  {
1003  SetLastNtError(Status);
1004  ERR("Exit co_IntWaitMessage on error!\n");
1005  return FALSE;
1006  }
1007  if (Status == STATUS_USER_APC || Status == STATUS_TIMEOUT)
1008  {
1009  return FALSE;
1010  }
1011  }
1012  while ( TRUE );
1013 
1014  return FALSE;
1015 }
1016 
1017 BOOL APIENTRY
1018 co_IntGetPeekMessage( PMSG pMsg,
1019  HWND hWnd,
1020  UINT MsgFilterMin,
1021  UINT MsgFilterMax,
1022  UINT RemoveMsg,
1023  BOOL bGMSG )
1024 {
1025  PWND Window;
1026  PTHREADINFO pti;
1027  BOOL Present = FALSE;
1028  NTSTATUS Status;
1029  LONG_PTR ExtraInfo = 0;
1030 
1031  if ( hWnd == HWND_TOPMOST || hWnd == HWND_BROADCAST )
1032  hWnd = HWND_BOTTOM;
1033 
1034  /* Validate input */
1035  if (hWnd && hWnd != HWND_BOTTOM)
1036  {
1037  if (!(Window = UserGetWindowObject(hWnd)))
1038  {
1039  if (bGMSG)
1040  return -1;
1041  else
1042  return FALSE;
1043  }
1044  }
1045  else
1046  {
1047  Window = (PWND)hWnd;
1048  }
1049 
1050  if (MsgFilterMax < MsgFilterMin)
1051  {
1052  MsgFilterMin = 0;
1053  MsgFilterMax = 0;
1054  }
1055 
1056  if (bGMSG)
1057  {
1058  RemoveMsg |= ((GetWakeMask( MsgFilterMin, MsgFilterMax ))<< 16);
1059  }
1060 
1061  pti = PsGetCurrentThreadWin32Thread();
1062  pti->pClientInfo->cSpins++; // Bump up the spin count.
1063 
1064  do
1065  {
1066  Present = co_IntPeekMessage( pMsg,
1067  Window,
1068  MsgFilterMin,
1069  MsgFilterMax,
1070  RemoveMsg,
1071  &ExtraInfo,
1072  bGMSG );
1073  if (Present)
1074  {
1075  /* GetMessage or PostMessage must never get messages that contain pointers */
1076  ASSERT(FindMsgMemory(pMsg->message) == NULL);
1077 
1078  if ( pMsg->message >= WM_DDE_FIRST && pMsg->message <= WM_DDE_LAST )
1079  {
1080  if (!IntDdeGetMessageHook(pMsg, ExtraInfo))
1081  {
1082  TRACE("DDE Get return ERROR\n");
1083  continue;
1084  }
1085  }
1086 
1087  if (pMsg->message != WM_PAINT && pMsg->message != WM_QUIT)
1088  {
1089  if (!RtlEqualMemory(&pti->ptLast, &pMsg->pt, sizeof(POINT)))
1090  {
1091  pti->TIF_flags |= TIF_MSGPOSCHANGED;
1092  }
1093  pti->timeLast = pMsg->time;
1094  pti->ptLast = pMsg->pt;
1095  }
1096 
1097  // The WH_GETMESSAGE hook enables an application to monitor messages about to
1098  // be returned by the GetMessage or PeekMessage function.
1099 
1100  co_HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, RemoveMsg & PM_REMOVE, (LPARAM)pMsg);
1101 
1102  if ( bGMSG || pMsg->message == WM_PAINT) break;
1103  }
1104 
1105  if ( bGMSG )
1106  {
1107  Status = co_MsqWaitForNewMessages( pti,
1108  Window,
1109  MsgFilterMin,
1110  MsgFilterMax);
1111  if ( !NT_SUCCESS(Status) ||
1112  Status == STATUS_USER_APC ||
1113  Status == STATUS_TIMEOUT )
1114  {
1115  Present = -1;
1116  break;
1117  }
1118  }
1119  else
1120  {
1121  if (!(RemoveMsg & PM_NOYIELD))
1122  {
1123  IdlePing();
1124  // Yield this thread!
1125  UserLeave();
1126  ZwYieldExecution();
1127  UserEnterExclusive();
1128  // Fall through to exit.
1129  IdlePong();
1130  }
1131  break;
1132  }
1133  }
1134  while( bGMSG && !Present );
1135 
1136  // Been spinning, time to swap vinyl...
1137  if (pti->pClientInfo->cSpins >= 100)
1138  {
1139  // Clear the spin cycle to fix the mix.
1140  pti->pClientInfo->cSpins = 0;
1141  //if (!(pti->TIF_flags & TIF_SPINNING)) // FIXME: Need to swap vinyl...
1142  }
1143  return Present;
1144 }
1145 
1146 BOOL FASTCALL
1147 UserPostThreadMessage( PTHREADINFO pti,
1148  UINT Msg,
1149  WPARAM wParam,
1150  LPARAM lParam )
1151 {
1152  MSG Message;
1153 
1154  if (is_pointer_message(Msg))
1155  {
1156  EngSetLastError(ERROR_MESSAGE_SYNC_ONLY );
1157  return FALSE;
1158  }
1159  Message.hwnd = NULL;
1160  Message.message = Msg;
1161  Message.wParam = wParam;
1162  Message.lParam = lParam;
1163  Message.pt = gpsi->ptCursor;
1164  Message.time = EngGetTickCount32();
1165  MsqPostMessage(pti, &Message, FALSE, QS_POSTMESSAGE, 0, 0);
1166  return TRUE;
1167 }
1168 
1169 PTHREADINFO FASTCALL
1170 IntSendTo(PWND Window, PTHREADINFO ptiCur, UINT Msg)
1171 {
1172  if ( ptiCur )
1173  {
1174  if (!Window ||
1175  Window->head.pti == ptiCur )
1176  {
1177  return NULL;
1178  }
1179  }
1180  return Window ? Window->head.pti : NULL;
1181 }
1182 
1183 BOOL FASTCALL
1184 UserPostMessage( HWND Wnd,
1185  UINT Msg,
1186  WPARAM wParam,
1187  LPARAM lParam )
1188 {
1189  PTHREADINFO pti;
1190  MSG Message;
1191  LONG_PTR ExtraInfo = 0;
1192 
1193  Message.hwnd = Wnd;
1194  Message.message = Msg;
1195  Message.wParam = wParam;
1196  Message.lParam = lParam;
1197  Message.pt = gpsi->ptCursor;
1198  Message.time = EngGetTickCount32();
1199 
1200  if (is_pointer_message(Message.message))
1201  {
1202  EngSetLastError(ERROR_MESSAGE_SYNC_ONLY );
1203  return FALSE;
1204  }
1205 
1206  if (Wnd == HWND_BROADCAST || Wnd == HWND_TOPMOST)
1207  {
1208  HWND *List;
1209  PWND DesktopWindow;
1210  ULONG i;
1211 
1212  if (!is_message_broadcastable(Msg)) return TRUE;
1213 
1214  DesktopWindow = UserGetDesktopWindow();
1215  List = IntWinListChildren(DesktopWindow);
1216 
1217  if (List != NULL)
1218  {
1219  UserPostMessage(DesktopWindow->head.h, Msg, wParam, lParam);
1220  for (i = 0; List[i]; i++)
1221  {
1222  PWND pwnd = UserGetWindowObject(List[i]);
1223  if (!pwnd) continue;
1224 
1225  if ( pwnd->fnid == FNID_MENU || // Also need pwnd->pcls->atomClassName == gaOleMainThreadWndClass
1226  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
1227  continue;
1228 
1229  UserPostMessage(List[i], Msg, wParam, lParam);
1230  }
1231  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
1232  }
1233  }
1234  else
1235  {
1236  PWND Window;
1237 
1238  if (!Wnd)
1239  {
1240  return UserPostThreadMessage( gptiCurrent,
1241  Msg,
1242  wParam,
1243  lParam);
1244  }
1245 
1246  Window = UserGetWindowObject(Wnd);
1247  if ( !Window )
1248  {
1249  ERR("UserPostMessage: Invalid handle 0x%p Msg 0x%x!\n", Wnd, Msg);
1250  return FALSE;
1251  }
1252 
1253  pti = Window->head.pti;
1254 
1255  if ( pti->TIF_flags & TIF_INCLEANUP )
1256  {
1257  ERR("Attempted to post message to window %p when the thread is in cleanup!\n", Wnd);
1258  return FALSE;
1259  }
1260 
1261  if ( Window->state & WNDS_DESTROYED )
1262  {
1263  ERR("Attempted to post message to window %p that is being destroyed!\n", Wnd);
1264  /* FIXME: Last error code? */
1265  return FALSE;
1266  }
1267 
1268  if ( Msg >= WM_DDE_FIRST && Msg <= WM_DDE_LAST )
1269  {
1270  if (!IntDdePostMessageHook(Window, Msg, wParam, &lParam, &ExtraInfo))
1271  {
1272  TRACE("Posting Exit DDE 0x%x\n",Msg);
1273  return FALSE;
1274  }
1275  Message.lParam = lParam;
1276  }
1277 
1278  MsqPostMessage(pti, &Message, FALSE, QS_POSTMESSAGE, 0, ExtraInfo);
1279  }
1280  return TRUE;
1281 }
1282 
1283 LRESULT FASTCALL
1284 co_IntSendMessage( HWND hWnd,
1285  UINT Msg,
1286  WPARAM wParam,
1287  LPARAM lParam )
1288 {
1289  ULONG_PTR Result = 0;
1290 
1291  if (co_IntSendMessageTimeout(hWnd, Msg, wParam, lParam, SMTO_NORMAL, 0, &Result))
1292  {
1293  return (LRESULT)Result;
1294  }
1295  return 0;
1296 }
1297 
1298 static LRESULT FASTCALL
1299 co_IntSendMessageTimeoutSingle( HWND hWnd,
1300  UINT Msg,
1301  WPARAM wParam,
1302  LPARAM lParam,
1303  UINT uFlags,
1304  UINT uTimeout,
1305  ULONG_PTR *uResult )
1306 {
1307  NTSTATUS Status = STATUS_SUCCESS;
1308  PWND Window = NULL;
1309  PMSGMEMORY MsgMemoryEntry;
1310  INT lParamBufferSize;
1311  LPARAM lParamPacked;
1312  PTHREADINFO Win32Thread, ptiSendTo = NULL;
1313  ULONG_PTR Result = 0;
1314  DECLARE_RETURN(LRESULT);
1315  USER_REFERENCE_ENTRY Ref;
1316  BOOL DoCallBack = TRUE;
1317 
1318  if (!(Window = UserGetWindowObject(hWnd)))
1319  {
1320  TRACE("SendMessageTimeoutSingle: Invalid handle 0x%p!\n",hWnd);
1321  RETURN( FALSE);
1322  }
1323 
1324  UserRefObjectCo(Window, &Ref);
1325 
1326  Win32Thread = PsGetCurrentThreadWin32Thread();
1327 
1328  ptiSendTo = IntSendTo(Window, Win32Thread, Msg);
1329 
1330  if ( Msg >= WM_DDE_FIRST && Msg <= WM_DDE_LAST )
1331  {
1332  if (!IntDdeSendMessageHook(Window, Msg, wParam, lParam))
1333  {
1334  ERR("Sending Exit DDE 0x%x\n",Msg);
1335  RETURN( FALSE);
1336  }
1337  }
1338 
1339  if ( !ptiSendTo )
1340  {
1341  if (Win32Thread->TIF_flags & TIF_INCLEANUP)
1342  {
1343  /* Never send messages to exiting threads */
1344  RETURN( FALSE);
1345  }
1346 
1347  if (Msg & 0x80000000)
1348  {
1349  TRACE("SMTS: Internal Message!\n");
1350  Result = (ULONG_PTR)handle_internal_message( Window, Msg, wParam, lParam );
1351  if (uResult) *uResult = Result;
1352  RETURN( TRUE);
1353  }
1354 
1355  // Only happens when calling the client!
1356  IntCallWndProc( Window, hWnd, Msg, wParam, lParam);
1357 
1358  if ( Window->state & WNDS_SERVERSIDEWINDOWPROC )
1359  {
1360  TRACE("SMT: Server Side Window Procedure\n");
1361  // Handle it here. Safeguard against excessive recursions.
1362  if (IoGetRemainingStackSize() < PAGE_SIZE)
1363  {
1364  ERR("Server Callback Exceeded Stack!\n");
1365  RETURN( FALSE);
1366  }
1367  /* Return after server side call, IntCallWndProcRet will not be called. */
1368  switch(Window->fnid)
1369  {
1370  case FNID_DESKTOP:
1371  DoCallBack = !DesktopWindowProc(Window, Msg, wParam, lParam,(LRESULT*)&Result);
1372  break;
1373  case FNID_MESSAGEWND:
1374  DoCallBack = !UserMessageWindowProc(Window, Msg, wParam, lParam,(LRESULT*)&Result);
1375  break;
1376  case FNID_MENU:
1377  DoCallBack = !PopupMenuWndProc( Window, Msg, wParam, lParam,(LRESULT*)&Result);
1378  break;
1379  }
1380  if (!DoCallBack)
1381  {
1382  if (uResult) *uResult = Result;
1383  RETURN( TRUE);
1384  }
1385  }
1386  /* See if this message type is present in the table */
1387  MsgMemoryEntry = FindMsgMemory(Msg);
1388  if (NULL == MsgMemoryEntry)
1389  {
1390  lParamBufferSize = -1;
1391  }
1392  else
1393  {
1394  lParamBufferSize = MsgMemorySize(MsgMemoryEntry, wParam, lParam);
1395  // If zero, do not allow callback on client side to allocate a buffer!!!!! See CORE-7695.
1396  if (!lParamBufferSize) lParamBufferSize = -1;
1397  }
1398 
1399  if (! NT_SUCCESS(PackParam(&lParamPacked, Msg, wParam, lParam, FALSE)))
1400  {
1401  ERR("Failed to pack message parameters\n");
1402  RETURN( FALSE);
1403  }
1404 
1405  Result = (ULONG_PTR)co_IntCallWindowProc( Window->lpfnWndProc,
1406  !Window->Unicode,
1407  hWnd,
1408  Msg,
1409  wParam,
1410  lParamPacked,
1411  lParamBufferSize );
1412  if (uResult)
1413  {
1414  *uResult = Result;
1415  }
1416 
1417  if (! NT_SUCCESS(UnpackParam(lParamPacked, Msg, wParam, lParam, FALSE)))
1418  {
1419  ERR("Failed to unpack message parameters\n");
1420  RETURN( TRUE);
1421  }
1422 
1423  // Only happens when calling the client!
1424  IntCallWndProcRet( Window, hWnd, Msg, wParam, lParam, (LRESULT *)uResult);
1425 
1426  RETURN( TRUE);
1427  }
1428 
1429  if (Window->state & WNDS_DESTROYED)
1430  {
1431  /* FIXME: Last error? */
1432  ERR("Attempted to send message to window %p that is being destroyed!\n", hWnd);
1433  RETURN( FALSE);
1434  }
1435 
1436  if ((uFlags & SMTO_ABORTIFHUNG) && MsqIsHung(ptiSendTo, 4 * MSQ_HUNG))
1437  {
1438  // FIXME: Set window hung and add to a list.
1439  /* FIXME: Set a LastError? */
1440  ERR("Window %p (%p) (pti %p) is hung!\n", hWnd, Window, ptiSendTo);
1441  RETURN( FALSE);
1442  }
1443 
1444  do
1445  {
1446  Status = co_MsqSendMessage( ptiSendTo,
1447  hWnd,
1448  Msg,
1449  wParam,
1450  lParam,
1451  uTimeout,
1452  (uFlags & SMTO_BLOCK),
1453  MSQ_NORMAL,
1454  uResult );
1455  }
1456  while ((Status == STATUS_TIMEOUT) &&
1457  (uFlags & SMTO_NOTIMEOUTIFNOTHUNG) &&
1458  !MsqIsHung(ptiSendTo, MSQ_HUNG)); // FIXME: Set window hung and add to a list.
1459 
1460  if (Status == STATUS_TIMEOUT)
1461  {
1462  if (0 && MsqIsHung(ptiSendTo, MSQ_HUNG))
1463  {
1464  TRACE("Let's go Ghost!\n");
1465  IntMakeHungWindowGhosted(hWnd);
1466  }
1467 /*
1468  * MSDN says:
1469  * Microsoft Windows 2000: If GetLastError returns zero, then the function
1470  * timed out.
1471  * XP+ : If the function fails or times out, the return value is zero.
1472  * To get extended error information, call GetLastError. If GetLastError
1473  * returns ERROR_TIMEOUT, then the function timed out.
1474  */
1475  EngSetLastError(ERROR_TIMEOUT);
1476  RETURN( FALSE);
1477  }
1478  else if (!NT_SUCCESS(Status))
1479  {
1480  SetLastNtError(Status);
1481  RETURN( FALSE);
1482  }
1483 
1484  RETURN( TRUE);
1485 
1486 CLEANUP:
1487  if (Window) UserDerefObjectCo(Window);
1488  END_CLEANUP;
1489 }
1490 
1491 LRESULT FASTCALL
1492 co_IntSendMessageTimeout( HWND hWnd,
1493  UINT Msg,
1494  WPARAM wParam,
1495  LPARAM lParam,
1496  UINT uFlags,
1497  UINT uTimeout,
1498  ULONG_PTR *uResult )
1499 {
1500  PWND DesktopWindow;
1501  HWND *Children;
1502  HWND *Child;
1503 
1504  if (hWnd != HWND_BROADCAST && hWnd != HWND_TOPMOST)
1505  {
1506  return co_IntSendMessageTimeoutSingle(hWnd, Msg, wParam, lParam, uFlags, uTimeout, uResult);
1507  }
1508 
1509  if (!is_message_broadcastable(Msg)) return TRUE;
1510 
1511  DesktopWindow = UserGetDesktopWindow();
1512  if (NULL == DesktopWindow)
1513  {
1514  EngSetLastError(ERROR_INTERNAL_ERROR);
1515  return 0;
1516  }
1517 
1518  if (hWnd != HWND_TOPMOST)
1519  {
1520  /* Send message to the desktop window too! */
1521  co_IntSendMessageTimeoutSingle(DesktopWindow->head.h, Msg, wParam, lParam, uFlags, uTimeout, uResult);
1522  }
1523 
1524  Children = IntWinListChildren(DesktopWindow);
1525  if (NULL == Children)
1526  {
1527  return 0;
1528  }
1529 
1530  for (Child = Children; NULL != *Child; Child++)
1531  {
1532  PWND pwnd = UserGetWindowObject(*Child);
1533  if (!pwnd) continue;
1534 
1535  if ( pwnd->fnid == FNID_MENU ||
1536  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
1537  continue;
1538 
1539  co_IntSendMessageTimeoutSingle(*Child, Msg, wParam, lParam, uFlags, uTimeout, uResult);
1540  }
1541 
1542  ExFreePoolWithTag(Children, USERTAG_WINDOWLIST);
1543 
1544  return (LRESULT) TRUE;
1545 }
1546 
1547 LRESULT FASTCALL
1548 co_IntSendMessageNoWait(HWND hWnd,
1549  UINT Msg,
1550  WPARAM wParam,
1551  LPARAM lParam)
1552 {
1553  ULONG_PTR Result = 0;
1554  return co_IntSendMessageWithCallBack( hWnd,
1555  Msg,
1556  wParam,
1557  lParam,
1558  NULL,
1559  0,
1560  &Result);
1561 }
1562 /* MSDN:
1563  If you send a message in the range below WM_USER to the asynchronous message
1564  functions (PostMessage, SendNotifyMessage, and SendMessageCallback), its
1565  message parameters cannot include pointers. Otherwise, the operation will fail.
1566  The functions will return before the receiving thread has had a chance to
1567  process the message and the sender will free the memory before it is used.
1568 */
1569 LRESULT FASTCALL
1570 co_IntSendMessageWithCallBack( HWND hWnd,
1571  UINT Msg,
1572  WPARAM wParam,
1573  LPARAM lParam,
1574  SENDASYNCPROC CompletionCallback,
1575  ULONG_PTR CompletionCallbackContext,
1576  ULONG_PTR *uResult)
1577 {
1578  ULONG_PTR Result;
1579  PWND Window = NULL;
1580  PMSGMEMORY MsgMemoryEntry;
1581  INT lParamBufferSize;
1582  LPARAM lParamPacked;
1583  PTHREADINFO Win32Thread, ptiSendTo = NULL;
1584  DECLARE_RETURN(LRESULT);
1585  USER_REFERENCE_ENTRY Ref;
1586  PUSER_SENT_MESSAGE Message;
1587  BOOL DoCallBack = TRUE;
1588 
1589  if (!(Window = UserGetWindowObject(hWnd)))
1590  {
1591  TRACE("SendMessageWithCallBack: Invalid handle 0x%p!\n",hWnd);
1592  RETURN(FALSE);
1593  }
1594 
1595  UserRefObjectCo(Window, &Ref);
1596 
1597  if (Window->state & WNDS_DESTROYED)
1598  {
1599  /* FIXME: last error? */
1600  ERR("Attempted to send message to window %p that is being destroyed!\n", hWnd);
1601  RETURN(FALSE);
1602  }
1603 
1604  Win32Thread = PsGetCurrentThreadWin32Thread();
1605 
1606  if (Win32Thread == NULL ||
1607  Win32Thread->TIF_flags & TIF_INCLEANUP)
1608  {
1609  RETURN(FALSE);
1610  }
1611 
1612  ptiSendTo = IntSendTo(Window, Win32Thread, Msg);
1613 
1614  if (Msg & 0x80000000 &&
1615  !ptiSendTo)
1616  {
1617  if (Win32Thread->TIF_flags & TIF_INCLEANUP) RETURN( FALSE);
1618 
1619  TRACE("SMWCB: Internal Message!\n");
1620  Result = (ULONG_PTR)handle_internal_message( Window, Msg, wParam, lParam );
1621  if (uResult) *uResult = Result;
1622  RETURN( TRUE);
1623  }
1624 
1625  /* See if this message type is present in the table */
1626  MsgMemoryEntry = FindMsgMemory(Msg);
1627  if (NULL == MsgMemoryEntry)
1628  {
1629  lParamBufferSize = -1;
1630  }
1631  else
1632  {
1633  lParamBufferSize = MsgMemorySize(MsgMemoryEntry, wParam, lParam);
1634  if (!lParamBufferSize) lParamBufferSize = -1;
1635  }
1636 
1637  if (! NT_SUCCESS(PackParam(&lParamPacked, Msg, wParam, lParam, !!ptiSendTo)))
1638  {
1639  ERR("Failed to pack message parameters\n");
1640  RETURN( FALSE);
1641  }
1642 
1643  /* If it can be sent now, then send it. */
1644  if ( !ptiSendTo )
1645  {
1646  if (Win32Thread->TIF_flags & TIF_INCLEANUP)
1647  {
1648  UnpackParam(lParamPacked, Msg, wParam, lParam, FALSE);
1649  /* Never send messages to exiting threads */
1650  RETURN(FALSE);
1651  }
1652 
1653  IntCallWndProc( Window, hWnd, Msg, wParam, lParam);
1654 
1655  if ( Window->state & WNDS_SERVERSIDEWINDOWPROC )
1656  {
1657  TRACE("SMWCB: Server Side Window Procedure\n");
1658  switch(Window->fnid)
1659  {
1660  case FNID_DESKTOP:
1661  DoCallBack = !DesktopWindowProc(Window, Msg, wParam, lParamPacked, (LRESULT*)&Result);
1662  break;
1663  case FNID_MESSAGEWND:
1664  DoCallBack = !UserMessageWindowProc(Window, Msg, wParam, lParam,(LRESULT*)&Result);
1665  break;
1666  case FNID_MENU:
1667  DoCallBack = !PopupMenuWndProc( Window, Msg, wParam, lParam,(LRESULT*)&Result);
1668  break;
1669  }
1670  }
1671 
1672  if (DoCallBack)
1673  Result = (ULONG_PTR)co_IntCallWindowProc( Window->lpfnWndProc,
1674  !Window->Unicode,
1675  hWnd,
1676  Msg,
1677  wParam,
1678  lParamPacked,
1679  lParamBufferSize );
1680  if(uResult)
1681  {
1682  *uResult = Result;
1683  }
1684 
1685  IntCallWndProcRet( Window, hWnd, Msg, wParam, lParam, (LRESULT *)uResult);
1686 
1687  if (CompletionCallback)
1688  {
1689  co_IntCallSentMessageCallback(CompletionCallback,
1690  hWnd,
1691  Msg,
1692  CompletionCallbackContext,
1693  Result);
1694  }
1695  }
1696 
1697  if ( !ptiSendTo)
1698  {
1699  if (! NT_SUCCESS(UnpackParam(lParamPacked, Msg, wParam, lParam, FALSE)))
1700  {
1701  ERR("Failed to unpack message parameters\n");
1702  }
1703  RETURN(TRUE);
1704  }
1705 
1706  if(!(Message = AllocateUserMessage(FALSE)))
1707  {
1708  ERR("MsqSendMessage(): Not enough memory to allocate a message");
1709  RETURN( FALSE);
1710  }
1711 
1712  Message->Msg.hwnd = hWnd;
1713  Message->Msg.message = Msg;
1714  Message->Msg.wParam = wParam;
1715  Message->Msg.lParam = lParamPacked;
1716  Message->pkCompletionEvent = NULL; // No event needed.
1717  Message->lResult = 0;
1718  Message->QS_Flags = 0;
1719  Message->ptiReceiver = ptiSendTo;
1720  Message->ptiSender = NULL; // mjmartin, you are right! This is null.
1721  Message->ptiCallBackSender = Win32Thread;
1722  Message->CompletionCallback = CompletionCallback;
1723  Message->CompletionCallbackContext = CompletionCallbackContext;
1724  Message->HookMessage = MSQ_NORMAL;
1725  Message->HasPackedLParam = (lParamBufferSize > 0);
1726  Message->QS_Flags = QS_SENDMESSAGE;
1727  Message->flags = SMF_RECEIVERFREE;
1728 
1729  if (Msg & 0x80000000) // Higher priority event message!
1730  InsertHeadList(&ptiSendTo->SentMessagesListHead, &Message->ListEntry);
1731  else
1732  InsertTailList(&ptiSendTo->SentMessagesListHead, &Message->ListEntry);
1733  MsqWakeQueue(ptiSendTo, QS_SENDMESSAGE, TRUE);
1734 
1735  RETURN(TRUE);
1736 
1737 CLEANUP:
1738  if (Window) UserDerefObjectCo(Window);
1739  END_CLEANUP;
1740 }
1741 
1742 #if 0
1743 /*
1744  This HACK function posts a message if the destination's message queue belongs to
1745  another thread, otherwise it sends the message. It does not support broadcast
1746  messages!
1747 */
1748 LRESULT FASTCALL
1749 co_IntPostOrSendMessage( HWND hWnd,
1750  UINT Msg,
1751  WPARAM wParam,
1752  LPARAM lParam )
1753 {
1754  ULONG_PTR Result;
1755  PTHREADINFO pti;
1756  PWND Window;
1757 
1758  if ( hWnd == HWND_BROADCAST )
1759  {
1760  return 0;
1761  }
1762 
1763  if(!(Window = UserGetWindowObject(hWnd)))
1764  {
1765  TRACE("PostOrSendMessage: Invalid handle 0x%p!\n",hWnd);
1766  return 0;
1767  }
1768 
1769  pti = PsGetCurrentThreadWin32Thread();
1770 
1771  if ( IntSendTo(Window, pti, Msg) &&
1772  FindMsgMemory(Msg) == 0 )
1773  {
1774  Result = UserPostMessage(hWnd, Msg, wParam, lParam);
1775  }
1776  else
1777  {
1778  if ( !co_IntSendMessageTimeoutSingle(hWnd, Msg, wParam, lParam, SMTO_NORMAL, 0, &Result) )
1779  {
1780  Result = 0;
1781  }
1782  }
1783 
1784  return (LRESULT)Result;
1785 }
1786 #endif
1787 
1788 static LRESULT FASTCALL
1789 co_IntDoSendMessage( HWND hWnd,
1790  UINT Msg,
1791  WPARAM wParam,
1792  LPARAM lParam,
1793  PDOSENDMESSAGE dsm)
1794 {
1795  LRESULT Result = TRUE;
1796  NTSTATUS Status;
1797  PWND Window = NULL;
1798  MSG UserModeMsg, KernelModeMsg;
1799  PMSGMEMORY MsgMemoryEntry;
1800  PTHREADINFO ptiSendTo;
1801 
1802  if (hWnd != HWND_BROADCAST && hWnd != HWND_TOPMOST)
1803  {
1804  Window = UserGetWindowObject(hWnd);
1805  if ( !Window )
1806  {
1807  return 0;
1808  }
1809  }
1810 
1811  /* Check for an exiting window. */
1812  if (Window && Window->state & WNDS_DESTROYED)
1813  {
1814  ERR("co_IntDoSendMessage Window Exiting!\n");
1815  }
1816 
1817  /* See if the current thread can handle this message */
1818  ptiSendTo = IntSendTo(Window, gptiCurrent, Msg);
1819 
1820  // If broadcasting or sending to another thread, save the users data.
1821  if (!Window || ptiSendTo )
1822  {
1823  UserModeMsg.hwnd = hWnd;
1824  UserModeMsg.message = Msg;
1825  UserModeMsg.wParam = wParam;
1826  UserModeMsg.lParam = lParam;
1827  MsgMemoryEntry = FindMsgMemory(UserModeMsg.message);
1828  Status = CopyMsgToKernelMem(&KernelModeMsg, &UserModeMsg, MsgMemoryEntry);
1829  if (!NT_SUCCESS(Status))
1830  {
1831  EngSetLastError(ERROR_INVALID_PARAMETER);
1832  return (dsm ? 0 : -1);
1833  }
1834  }
1835  else
1836  {
1837  KernelModeMsg.hwnd = hWnd;
1838  KernelModeMsg.message = Msg;
1839  KernelModeMsg.wParam = wParam;
1840  KernelModeMsg.lParam = lParam;
1841  }
1842 
1843  if (!dsm)
1844  {
1845  Result = co_IntSendMessage( KernelModeMsg.hwnd,
1846  KernelModeMsg.message,
1847  KernelModeMsg.wParam,
1848  KernelModeMsg.lParam );
1849  }
1850  else
1851  {
1852  Result = co_IntSendMessageTimeout( KernelModeMsg.hwnd,
1853  KernelModeMsg.message,
1854  KernelModeMsg.wParam,
1855  KernelModeMsg.lParam,
1856  dsm->uFlags,
1857  dsm->uTimeout,
1858  &dsm->Result );
1859  }
1860 
1861  if (!Window || ptiSendTo )
1862  {
1863  Status = CopyMsgToUserMem(&UserModeMsg, &KernelModeMsg);
1864  if (!NT_SUCCESS(Status))
1865  {
1866  EngSetLastError(ERROR_INVALID_PARAMETER);
1867  return(dsm ? 0 : -1);
1868  }
1869  }
1870 
1871  return (LRESULT)Result;
1872 }
1873 
1874 BOOL FASTCALL
1875 UserSendNotifyMessage( HWND hWnd,
1876  UINT Msg,
1877  WPARAM wParam,
1878  LPARAM lParam )
1879 {
1880  BOOL Ret = TRUE;
1881 
1882  if (is_pointer_message(Msg))
1883  {
1884  EngSetLastError(ERROR_MESSAGE_SYNC_ONLY );
1885  return FALSE;
1886  }
1887 
1888  // Basicly the same as IntPostOrSendMessage
1889  if (hWnd == HWND_BROADCAST) // Handle Broadcast
1890  {
1891  HWND *List;
1892  PWND DesktopWindow;
1893  ULONG i;
1894 
1895  DesktopWindow = UserGetDesktopWindow();
1896  List = IntWinListChildren(DesktopWindow);
1897 
1898  if (List != NULL)
1899  {
1900  UserSendNotifyMessage(DesktopWindow->head.h, Msg, wParam, lParam);
1901  for (i = 0; List[i]; i++)
1902  {
1903  PWND pwnd = UserGetWindowObject(List[i]);
1904  if (!pwnd) continue;
1905 
1906  if ( pwnd->fnid == FNID_MENU ||
1907  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
1908  continue;
1909 
1910  Ret = UserSendNotifyMessage(List[i], Msg, wParam, lParam);
1911  }
1912  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
1913  }
1914  }
1915  else
1916  {
1917  Ret = co_IntSendMessageNoWait( hWnd, Msg, wParam, lParam);
1918  }
1919  return Ret;
1920 }
1921 
1922 
1923 DWORD APIENTRY
1924 IntGetQueueStatus(DWORD Changes)
1925 {
1926  PTHREADINFO pti;
1927  DWORD Result;
1928 
1929  pti = PsGetCurrentThreadWin32Thread();
1930 // wine:
1931  Changes &= (QS_ALLINPUT|QS_ALLPOSTMESSAGE|QS_SMRESULT);
1932 
1933  /* High word, types of messages currently in the queue.
1934  Low word, types of messages that have been added to the queue and that
1935  are still in the queue
1936  */
1937  Result = MAKELONG(pti->pcti->fsChangeBits & Changes, pti->pcti->fsWakeBits & Changes);
1938 
1939  pti->pcti->fsChangeBits &= ~Changes;
1940 
1941  return Result;
1942 }
1943 
1944 BOOL APIENTRY
1945 IntInitMessagePumpHook(VOID)
1946 {
1947  PTHREADINFO pti = PsGetCurrentThreadWin32Thread();
1948 
1949  if (pti->pcti)
1950  {
1951  pti->pcti->dwcPumpHook++;
1952  return TRUE;
1953  }
1954  return FALSE;
1955 }
1956 
1957 BOOL APIENTRY
1958 IntUninitMessagePumpHook(VOID)
1959 {
1960  PTHREADINFO pti = PsGetCurrentThreadWin32Thread();
1961 
1962  if (pti->pcti)
1963  {
1964  if (pti->pcti->dwcPumpHook <= 0)
1965  {
1966  return FALSE;
1967  }
1968  pti->pcti->dwcPumpHook--;
1969  return TRUE;
1970  }
1971  return FALSE;
1972 }
1973 
1974 BOOL FASTCALL
1975 IntCallMsgFilter( LPMSG lpmsg, INT code)
1976 {
1977  BOOL Ret = FALSE;
1978 
1979  if ( co_HOOK_CallHooks( WH_SYSMSGFILTER, code, 0, (LPARAM)lpmsg))
1980  {
1981  Ret = TRUE;
1982  }
1983  else
1984  {
1985  Ret = co_HOOK_CallHooks( WH_MSGFILTER, code, 0, (LPARAM)lpmsg);
1986  }
1987  return Ret;
1988 }
1989 
1992 BOOL
1993 APIENTRY
1994 NtUserDragDetect(
1995  HWND hWnd,
1996  POINT pt) // Just like the User call.
1997 {
1998  MSG msg;
1999  RECT rect;
2000  ULONG wDragWidth, wDragHeight;
2001  DECLARE_RETURN(BOOL);
2002 
2003  TRACE("Enter NtUserDragDetect(%p)\n", hWnd);
2004  UserEnterExclusive();
2005 
2006  wDragWidth = UserGetSystemMetrics(SM_CXDRAG);
2007  wDragHeight= UserGetSystemMetrics(SM_CYDRAG);
2008 
2009  rect.left = pt.x - wDragWidth;
2010  rect.right = pt.x + wDragWidth;
2011 
2012  rect.top = pt.y - wDragHeight;
2013  rect.bottom = pt.y + wDragHeight;
2014 
2015  co_UserSetCapture(hWnd);
2016 
2017  for (;;)
2018  {
2019  while (co_IntGetPeekMessage( &msg, 0, WM_MOUSEFIRST, WM_MOUSELAST, PM_REMOVE, FALSE ) ||
2020  co_IntGetPeekMessage( &msg, 0, WM_QUEUESYNC, WM_QUEUESYNC, PM_REMOVE, FALSE ) ||
2021  co_IntGetPeekMessage( &msg, 0, WM_KEYFIRST, WM_KEYLAST, PM_REMOVE, FALSE ) )
2022  {
2023  if ( msg.message == WM_LBUTTONUP )
2024  {
2025  co_UserSetCapture(NULL);
2026  RETURN( FALSE);
2027  }
2028  if ( msg.message == WM_MOUSEMOVE )
2029  {
2030  POINT tmp;
2031  tmp.x = (short)LOWORD(msg.lParam);
2032  tmp.y = (short)HIWORD(msg.lParam);
2033  if( !RECTL_bPointInRect( &rect, tmp.x, tmp.y ) )
2034  {
2035  co_UserSetCapture(NULL);
2036  RETURN( TRUE);
2037  }
2038  }
2039  if ( msg.message == WM_KEYDOWN )
2040  {
2041  if ( msg.wParam == VK_ESCAPE )
2042  {
2043  co_UserSetCapture(NULL);
2044  RETURN( TRUE);
2045  }
2046  }
2047  if ( msg.message == WM_QUEUESYNC )
2048  {
2049  co_HOOK_CallHooks( WH_CBT, HCBT_QS, 0, 0 );
2050  }
2051  }
2052  co_IntWaitMessage(NULL, 0, 0);
2053  }
2054  RETURN( FALSE);
2055 
2056 CLEANUP:
2057  TRACE("Leave NtUserDragDetect, ret=%i\n",_ret_);
2058  UserLeave();
2059  END_CLEANUP;
2060 }
2061 
2062 BOOL APIENTRY
2063 NtUserPostMessage(HWND hWnd,
2064  UINT Msg,
2065  WPARAM wParam,
2066  LPARAM lParam)
2067 {
2068  BOOL ret;
2069 
2070  UserEnterExclusive();
2071 
2072  ret = UserPostMessage(hWnd, Msg, wParam, lParam);
2073 
2074  UserLeave();
2075 
2076  return ret;
2077 }
2078 
2079 BOOL APIENTRY
2080 NtUserPostThreadMessage(DWORD idThread,
2081  UINT Msg,
2082  WPARAM wParam,
2083  LPARAM lParam)
2084 {
2085  BOOL ret = FALSE;
2086  PETHREAD peThread;
2087  PTHREADINFO pThread;
2088  NTSTATUS Status;
2089 
2090  UserEnterExclusive();
2091 
2092  Status = PsLookupThreadByThreadId(UlongToHandle(idThread), &peThread);
2093 
2094  if ( Status == STATUS_SUCCESS )
2095  {
2096  pThread = (PTHREADINFO)peThread->Tcb.Win32Thread;
2097  if( !pThread ||
2098  !pThread->MessageQueue ||
2099  (pThread->TIF_flags & TIF_INCLEANUP))
2100  {
2101  ObDereferenceObject( peThread );
2102  goto exit;
2103  }
2104  ret = UserPostThreadMessage( pThread, Msg, wParam, lParam);
2105  ObDereferenceObject( peThread );
2106  }
2107  else
2108  {
2109  SetLastNtError( Status );
2110  }
2111 exit:
2112  UserLeave();
2113  return ret;
2114 }
2115 
2116 BOOL APIENTRY
2117 NtUserWaitMessage(VOID)
2118 {
2119  BOOL ret;
2120 
2121  UserEnterExclusive();
2122  TRACE("NtUserWaitMessage Enter\n");
2123  ret = co_IntWaitMessage(NULL, 0, 0);
2124  TRACE("NtUserWaitMessage Leave\n");
2125  UserLeave();
2126 
2127  return ret;
2128 }
2129 
2130 BOOL APIENTRY
2131 NtUserGetMessage(PMSG pMsg,
2132  HWND hWnd,
2133  UINT MsgFilterMin,
2134  UINT MsgFilterMax )
2135 {
2136  MSG Msg;
2137  BOOL Ret;
2138 
2139  if ( (MsgFilterMin|MsgFilterMax) & ~WM_MAXIMUM )
2140  {
2141  EngSetLastError(ERROR_INVALID_PARAMETER);
2142  return FALSE;
2143  }
2144 
2145  UserEnterExclusive();
2146 
2147  RtlZeroMemory(&Msg, sizeof(MSG));
2148 
2149  Ret = co_IntGetPeekMessage(&Msg, hWnd, MsgFilterMin, MsgFilterMax, PM_REMOVE, TRUE);
2150 
2151  UserLeave();
2152 
2153  if (Ret)
2154  {
2155  _SEH2_TRY
2156  {
2157  ProbeForWrite(pMsg, sizeof(MSG), 1);
2158  RtlCopyMemory(pMsg, &Msg, sizeof(MSG));
2159  }
2160  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2161  {
2162  SetLastNtError(_SEH2_GetExceptionCode());
2163  Ret = FALSE;
2164  }
2165  _SEH2_END;
2166  }
2167 
2168  if ((INT)Ret != -1)
2169  Ret = Ret ? (WM_QUIT != pMsg->message) : FALSE;
2170 
2171  return Ret;
2172 }
2173 
2174 BOOL APIENTRY
2175 NtUserPeekMessage( PMSG pMsg,
2176  HWND hWnd,
2177  UINT MsgFilterMin,
2178  UINT MsgFilterMax,
2179  UINT RemoveMsg)
2180 {
2181  MSG Msg;
2182  BOOL Ret;
2183 
2184  if ( RemoveMsg & PM_BADMSGFLAGS )
2185  {
2186  EngSetLastError(ERROR_INVALID_FLAGS);
2187  return FALSE;
2188  }
2189 
2190  UserEnterExclusive();
2191 
2192  RtlZeroMemory(&Msg, sizeof(MSG));
2193 
2194  Ret = co_IntGetPeekMessage(&Msg, hWnd, MsgFilterMin, MsgFilterMax, RemoveMsg, FALSE);
2195 
2196  UserLeave();
2197 
2198  if (Ret)
2199  {
2200  _SEH2_TRY
2201  {
2202  ProbeForWrite(pMsg, sizeof(MSG), 1);
2203  RtlCopyMemory(pMsg, &Msg, sizeof(MSG));
2204  }
2205  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2206  {
2207  SetLastNtError(_SEH2_GetExceptionCode());
2208  Ret = FALSE;
2209  }
2210  _SEH2_END;
2211  }
2212 
2213  return Ret;
2214 }
2215 
2216 BOOL APIENTRY
2217 NtUserCallMsgFilter( LPMSG lpmsg, INT code)
2218 {
2219  BOOL Ret = FALSE;
2220  MSG Msg;
2221 
2222  _SEH2_TRY
2223  {
2224  ProbeForRead(lpmsg, sizeof(MSG), 1);
2225  RtlCopyMemory( &Msg, lpmsg, sizeof(MSG));
2226  }
2227  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2228  {
2229  _SEH2_YIELD(return FALSE);
2230  }
2231  _SEH2_END;
2232 
2233  UserEnterExclusive();
2234 
2235  if ( co_HOOK_CallHooks( WH_SYSMSGFILTER, code, 0, (LPARAM)&Msg))
2236  {
2237  Ret = TRUE;
2238  }
2239  else
2240  {
2241  Ret = co_HOOK_CallHooks( WH_MSGFILTER, code, 0, (LPARAM)&Msg);
2242  }
2243 
2244  UserLeave();
2245 
2246  _SEH2_TRY
2247  {
2248  ProbeForWrite(lpmsg, sizeof(MSG), 1);
2249  RtlCopyMemory(lpmsg, &Msg, sizeof(MSG));
2250  }
2251  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2252  {
2253  Ret = FALSE;
2254  }
2255  _SEH2_END;
2256 
2257  return Ret;
2258 }
2259 
2260 LRESULT APIENTRY
2261 NtUserDispatchMessage(PMSG UnsafeMsgInfo)
2262 {
2263  LRESULT Res = 0;
2264  MSG SafeMsg;
2265 
2266  _SEH2_TRY
2267  {
2268  ProbeForRead(UnsafeMsgInfo, sizeof(MSG), 1);
2269  RtlCopyMemory(&SafeMsg, UnsafeMsgInfo, sizeof(MSG));
2270  }
2271  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2272  {
2273  SetLastNtError(_SEH2_GetExceptionCode());
2274  _SEH2_YIELD(return FALSE);
2275  }
2276  _SEH2_END;
2277 
2278  UserEnterExclusive();
2279 
2280  Res = IntDispatchMessage(&SafeMsg);
2281 
2282  UserLeave();
2283  return Res;
2284 }
2285 
2286 BOOL APIENTRY
2287 NtUserTranslateMessage(LPMSG lpMsg, UINT flags)
2288 {
2289  MSG SafeMsg;
2290  BOOL Ret;
2291  PWND pWnd;
2292 
2293  _SEH2_TRY
2294  {
2295  ProbeForRead(lpMsg, sizeof(MSG), 1);
2296  RtlCopyMemory(&SafeMsg, lpMsg, sizeof(MSG));
2297  }
2298  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2299  {
2300  SetLastNtError(_SEH2_GetExceptionCode());
2301  _SEH2_YIELD(return FALSE);
2302  }
2303  _SEH2_END;
2304 
2305  UserEnterExclusive();
2306  pWnd = UserGetWindowObject(SafeMsg.hwnd);
2307  if (pWnd) // Must have a window!
2308  {
2309  Ret = IntTranslateKbdMessage(&SafeMsg, flags);
2310  }
2311  else
2312  {
2313  TRACE("No Window for Translate. hwnd 0x%p Msg %u\n", SafeMsg.hwnd, SafeMsg.message);
2314  Ret = FALSE;
2315  }
2316  UserLeave();
2317 
2318  return Ret;
2319 }
2320 
2321 LRESULT APIENTRY ScrollBarWndProc(HWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam);
2322 
2323 BOOL APIENTRY
2324 NtUserMessageCall( HWND hWnd,
2325  UINT Msg,
2326  WPARAM wParam,
2327  LPARAM lParam,
2328  ULONG_PTR ResultInfo,
2329  DWORD dwType, // fnID?
2330  BOOL Ansi)
2331 {
2332  LRESULT lResult = 0;
2333  BOOL Ret = FALSE;
2334  PWND Window = NULL;
2335  USER_REFERENCE_ENTRY Ref;
2336 
2337  UserEnterExclusive();
2338 
2339  switch(dwType)
2340  {
2341  case FNID_SCROLLBAR:
2342  {
2343  lResult = ScrollBarWndProc(hWnd, Msg, wParam, lParam);
2344  break;
2345  }
2346  case FNID_DESKTOP:
2347  {
2348  Window = UserGetWindowObject(hWnd);
2349  if (Window)
2350  {
2351  //ERR("FNID_DESKTOP IN\n");
2352  Ret = DesktopWindowProc(Window, Msg, wParam, lParam, &lResult);
2353  //ERR("FNID_DESKTOP OUT\n");
2354  }
2355  break;
2356  }
2357  case FNID_MENU:
2358  {
2359  Window = UserGetWindowObject(hWnd);
2360  if (Window)
2361  {
2362  Ret = PopupMenuWndProc( Window, Msg, wParam, lParam, &lResult);
2363  }
2364  break;
2365  }
2366  case FNID_MESSAGEWND:
2367  {
2368  Window = UserGetWindowObject(hWnd);
2369  if (Window)
2370  {
2371  Ret = !UserMessageWindowProc(Window, Msg, wParam, lParam, &lResult);
2372  }
2373  break;
2374  }
2375  case FNID_DEFWINDOWPROC:
2376  /* Validate input */
2377  if (hWnd)
2378  {
2379  Window = UserGetWindowObject(hWnd);
2380  if (!Window)
2381  {
2382  UserLeave();
2383  return FALSE;
2384  }
2385  UserRefObjectCo(Window, &Ref);
2386  }
2387  lResult = IntDefWindowProc(Window, Msg, wParam, lParam, Ansi);
2388  Ret = TRUE;
2389  if (hWnd)
2390  UserDerefObjectCo(Window);
2391  break;
2392  case FNID_SENDNOTIFYMESSAGE:
2393  Ret = UserSendNotifyMessage(hWnd, Msg, wParam, lParam);
2394  break;
2395  case FNID_BROADCASTSYSTEMMESSAGE:
2396  {
2397  BROADCASTPARM parm, *retparam;
2398  DWORD_PTR RetVal = 0;
2399 
2400  if (ResultInfo)
2401  {
2402  _SEH2_TRY
2403  {
2404  ProbeForWrite((PVOID)ResultInfo, sizeof(BROADCASTPARM), 1);
2405  RtlCopyMemory(&parm, (PVOID)ResultInfo, sizeof(BROADCASTPARM));
2406  }
2407  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2408  {
2409  _SEH2_YIELD(break);
2410  }
2411  _SEH2_END;
2412  }
2413  else
2414  break;
2415 
2416  if ( parm.recipients & BSM_ALLDESKTOPS ||
2417  parm.recipients == BSM_ALLCOMPONENTS )
2418  {
2419  PLIST_ENTRY DesktopEntry;
2420  PDESKTOP rpdesk;
2421  HWND *List, hwndDenied = NULL;
2422  HDESK hDesk = NULL;
2423  PWND pwnd, pwndDesk;
2424  ULONG i;
2425  UINT fuFlags;
2426 
2427  for (DesktopEntry = InputWindowStation->DesktopListHead.Flink;
2428  DesktopEntry != &InputWindowStation->DesktopListHead;
2429  DesktopEntry = DesktopEntry->Flink)
2430  {
2431  rpdesk = CONTAINING_RECORD(DesktopEntry, DESKTOP, ListEntry);
2432  pwndDesk = rpdesk->pDeskInfo->spwnd;
2433  List = IntWinListChildren(pwndDesk);
2434 
2435  if (parm.flags & BSF_QUERY)
2436  {
2437  if (List != NULL)
2438  {
2439  if (parm.flags & BSF_FORCEIFHUNG || parm.flags & BSF_NOHANG)
2440  {
2441  fuFlags = SMTO_ABORTIFHUNG;
2442  }
2443  else if (parm.flags & BSF_NOTIMEOUTIFNOTHUNG)
2444  {
2445  fuFlags = SMTO_NOTIMEOUTIFNOTHUNG;
2446  }
2447  else
2448  {
2449  fuFlags = SMTO_NORMAL;
2450  }
2451  co_IntSendMessageTimeout( UserHMGetHandle(pwndDesk),
2452  Msg,
2453  wParam,
2454  lParam,
2455  fuFlags,
2456  2000,
2457  &RetVal);
2458  Ret = TRUE;
2459  for (i = 0; List[i]; i++)
2460  {
2461  pwnd = UserGetWindowObject(List[i]);
2462  if (!pwnd) continue;
2463 
2464  if ( pwnd->fnid == FNID_MENU ||
2465  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2466  continue;
2467 
2468  if ( parm.flags & BSF_IGNORECURRENTTASK )
2469  {
2470  if ( pwnd->head.pti == gptiCurrent )
2471  continue;
2472  }
2473  co_IntSendMessageTimeout( List[i],
2474  Msg,
2475  wParam,
2476  lParam,
2477  fuFlags,
2478  2000,
2479  &RetVal);
2480 
2481  if (!RetVal && EngGetLastError() == ERROR_TIMEOUT)
2482  {
2483  if (!(parm.flags & BSF_FORCEIFHUNG))
2484  Ret = FALSE;
2485  }
2486  if (RetVal == BROADCAST_QUERY_DENY)
2487  {
2488  hwndDenied = List[i];
2489  hDesk = UserHMGetHandle(pwndDesk);
2490  Ret = FALSE;
2491  }
2492  }
2493  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2494  _SEH2_TRY
2495  {
2496  retparam = (PBROADCASTPARM) ResultInfo;
2497  retparam->hDesk = hDesk;
2498  retparam->hWnd = hwndDenied;
2499  }
2500  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2501  {
2502  _SEH2_YIELD(break);
2503  }
2504  _SEH2_END;
2505  if (!Ret) break; // Have a hit! Let everyone know!
2506  }
2507  }
2508  else if (parm.flags & BSF_POSTMESSAGE)
2509  {
2510  if (List != NULL)
2511  {
2512  UserPostMessage(UserHMGetHandle(pwndDesk), Msg, wParam, lParam);
2513 
2514  for (i = 0; List[i]; i++)
2515  {
2516  pwnd = UserGetWindowObject(List[i]);
2517  if (!pwnd) continue;
2518 
2519  if ( pwnd->fnid == FNID_MENU ||
2520  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2521  continue;
2522 
2523  if ( parm.flags & BSF_IGNORECURRENTTASK )
2524  {
2525  if ( pwnd->head.pti == gptiCurrent )
2526  continue;
2527  }
2528  UserPostMessage(List[i], Msg, wParam, lParam);
2529  }
2530  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2531  }
2532  Ret = TRUE;
2533  }
2534  else
2535  {
2536  if (List != NULL)
2537  {
2538  UserSendNotifyMessage(UserHMGetHandle(pwndDesk), Msg, wParam, lParam);
2539 
2540  for (i = 0; List[i]; i++)
2541  {
2542  pwnd = UserGetWindowObject(List[i]);
2543  if (!pwnd) continue;
2544 
2545  if ( pwnd->fnid == FNID_MENU ||
2546  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2547  continue;
2548 
2549  if ( parm.flags & BSF_IGNORECURRENTTASK )
2550  {
2551  if ( pwnd->head.pti == gptiCurrent )
2552  continue;
2553  }
2554  UserSendNotifyMessage(List[i], Msg, wParam, lParam);
2555  }
2556  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2557  }
2558  Ret = TRUE;
2559  }
2560  }
2561  }
2562  else if (parm.recipients & BSM_APPLICATIONS)
2563  {
2564  HWND *List, hwndDenied = NULL;
2565  HDESK hDesk = NULL;
2566  PWND pwnd, pwndDesk;
2567  ULONG i;
2568  UINT fuFlags;
2569 
2570  pwndDesk = UserGetDesktopWindow();
2571  List = IntWinListChildren(pwndDesk);
2572 
2573  if (parm.flags & BSF_QUERY)
2574  {
2575  if (List != NULL)
2576  {
2577  if (parm.flags & BSF_FORCEIFHUNG || parm.flags & BSF_NOHANG)
2578  {
2579  fuFlags = SMTO_ABORTIFHUNG;
2580  }
2581  else if (parm.flags & BSF_NOTIMEOUTIFNOTHUNG)
2582  {
2583  fuFlags = SMTO_NOTIMEOUTIFNOTHUNG;
2584  }
2585  else
2586  {
2587  fuFlags = SMTO_NORMAL;
2588  }
2589  co_IntSendMessageTimeout( UserHMGetHandle(pwndDesk),
2590  Msg,
2591  wParam,
2592  lParam,
2593  fuFlags,
2594  2000,
2595  &RetVal);
2596  Ret = TRUE;
2597  for (i = 0; List[i]; i++)
2598  {
2599  pwnd = UserGetWindowObject(List[i]);
2600  if (!pwnd) continue;
2601 
2602  if ( pwnd->fnid == FNID_MENU ||
2603  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2604  continue;
2605 
2606  if ( parm.flags & BSF_IGNORECURRENTTASK )
2607  {
2608  if ( pwnd->head.pti == gptiCurrent )
2609  continue;
2610  }
2611  co_IntSendMessageTimeout( List[i],
2612  Msg,
2613  wParam,
2614  lParam,
2615  fuFlags,
2616  2000,
2617  &RetVal);
2618 
2619  if (!RetVal && EngGetLastError() == ERROR_TIMEOUT)
2620  {
2621  if (!(parm.flags & BSF_FORCEIFHUNG))
2622  Ret = FALSE;
2623  }
2624  if (RetVal == BROADCAST_QUERY_DENY)
2625  {
2626  hwndDenied = List[i];
2627  hDesk = UserHMGetHandle(pwndDesk);
2628  Ret = FALSE;
2629  }
2630  }
2631  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2632  _SEH2_TRY
2633  {
2634  retparam = (PBROADCASTPARM) ResultInfo;
2635  retparam->hDesk = hDesk;
2636  retparam->hWnd = hwndDenied;
2637  }
2638  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2639  {
2640  _SEH2_YIELD(break);
2641  }
2642  _SEH2_END;
2643  }
2644  }
2645  else if (parm.flags & BSF_POSTMESSAGE)
2646  {
2647  if (List != NULL)
2648  {
2649  UserPostMessage(UserHMGetHandle(pwndDesk), Msg, wParam, lParam);
2650 
2651  for (i = 0; List[i]; i++)
2652  {
2653  pwnd = UserGetWindowObject(List[i]);
2654  if (!pwnd) continue;
2655 
2656  if ( pwnd->fnid == FNID_MENU ||
2657  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2658  continue;
2659 
2660  if ( parm.flags & BSF_IGNORECURRENTTASK )
2661  {
2662  if ( pwnd->head.pti == gptiCurrent )
2663  continue;
2664  }
2665  UserPostMessage(List[i], Msg, wParam, lParam);
2666  }
2667  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2668  }
2669  Ret = TRUE;
2670  }
2671  else
2672  {
2673  if (List != NULL)
2674  {
2675  UserSendNotifyMessage(UserHMGetHandle(pwndDesk), Msg, wParam, lParam);
2676 
2677  for (i = 0; List[i]; i++)
2678  {
2679  pwnd = UserGetWindowObject(List[i]);
2680  if (!pwnd) continue;
2681 
2682  if ( pwnd->fnid == FNID_MENU ||
2683  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2684  continue;
2685 
2686  if ( parm.flags & BSF_IGNORECURRENTTASK )
2687  {
2688  if ( pwnd->head.pti == gptiCurrent )
2689  continue;
2690  }
2691  UserSendNotifyMessage(List[i], Msg, wParam, lParam);
2692  }
2693  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2694  }
2695  Ret = TRUE;
2696  }
2697  }
2698  }
2699  break;
2700  case FNID_SENDMESSAGECALLBACK:
2701  {
2702  CALL_BACK_INFO CallBackInfo;
2703  ULONG_PTR uResult;
2704 
2705  _SEH2_TRY
2706  {
2707  ProbeForRead((PVOID)ResultInfo, sizeof(CALL_BACK_INFO), 1);
2708  RtlCopyMemory(&CallBackInfo, (PVOID)ResultInfo, sizeof(CALL_BACK_INFO));
2709  }
2710  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2711  {
2712  _SEH2_YIELD(break);
2713  }
2714  _SEH2_END;
2715 
2716  if (is_pointer_message(Msg))
2717  {
2718  EngSetLastError(ERROR_MESSAGE_SYNC_ONLY );
2719  break;
2720  }
2721 
2722  if (!(Ret = co_IntSendMessageWithCallBack(hWnd, Msg, wParam, lParam,
2723  CallBackInfo.CallBack, CallBackInfo.Context, &uResult)))
2724  {
2725  ERR("Callback failure!\n");
2726  }
2727  }
2728  break;
2729  case FNID_SENDMESSAGE:
2730  {
2731  lResult = co_IntDoSendMessage(hWnd, Msg, wParam, lParam, 0);
2732  Ret = TRUE;
2733 
2734  if (ResultInfo)
2735  {
2736  _SEH2_TRY
2737  {
2738  ProbeForWrite((PVOID)ResultInfo, sizeof(ULONG_PTR), 1);
2739  RtlCopyMemory((PVOID)ResultInfo, &lResult, sizeof(ULONG_PTR));
2740  }
2741  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2742  {
2743  Ret = FALSE;
2744  _SEH2_YIELD(break);
2745  }
2746  _SEH2_END;
2747  }
2748  break;
2749  }
2750  case FNID_SENDMESSAGEFF:
2751  case FNID_SENDMESSAGEWTOOPTION:
2752  {
2753  DOSENDMESSAGE dsm, *pdsm = (PDOSENDMESSAGE)ResultInfo;
2754  if (ResultInfo)
2755  {
2756  _SEH2_TRY
2757  {
2758  ProbeForRead(pdsm, sizeof(DOSENDMESSAGE), 1);
2759  RtlCopyMemory(&dsm, pdsm, sizeof(DOSENDMESSAGE));
2760  }
2761  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2762  {
2763  _SEH2_YIELD(break);
2764  }
2765  _SEH2_END;
2766  }
2767 
2768  Ret = co_IntDoSendMessage( hWnd, Msg, wParam, lParam, pdsm ? &dsm : NULL );
2769 
2770  if (pdsm)
2771  {
2772  _SEH2_TRY
2773  {
2774  ProbeForWrite(pdsm, sizeof(DOSENDMESSAGE), 1);
2775  RtlCopyMemory(pdsm, &dsm, sizeof(DOSENDMESSAGE));
2776  }
2777  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2778  {
2779  Ret = FALSE;
2780  _SEH2_YIELD(break);
2781  }
2782  _SEH2_END;
2783  }
2784  break;
2785  }
2786  // CallNextHook bypass.
2787  case FNID_CALLWNDPROC:
2788  case FNID_CALLWNDPROCRET:
2789  {
2790  PTHREADINFO pti;
2791  PCLIENTINFO ClientInfo;
2792  PHOOK NextObj, Hook;
2793 
2794  pti = GetW32ThreadInfo();
2795 
2796  Hook = pti->sphkCurrent;
2797 
2798  if (!Hook) break;
2799 
2800  NextObj = Hook->phkNext;
2801  ClientInfo = pti->pClientInfo;
2802  _SEH2_TRY
2803  {
2804  ClientInfo->phkCurrent = NextObj;
2805  }
2806  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2807  {
2808  ClientInfo = NULL;
2809  }
2810  _SEH2_END;
2811 
2812  if (!ClientInfo || !NextObj) break;
2813 
2814  NextObj->phkNext = IntGetNextHook(NextObj);
2815 
2816  if ( Hook->HookId == WH_CALLWNDPROC)
2817  {
2818  CWPSTRUCT CWP;
2819  CWP.hwnd = hWnd;
2820  CWP.message = Msg;
2821  CWP.wParam = wParam;
2822  CWP.lParam = lParam;
2823  TRACE("WH_CALLWNDPROC: Hook %p NextHook %p\n", Hook, NextObj);
2824 
2825  lResult = co_IntCallHookProc( Hook->HookId,
2826  HC_ACTION,
2827  ((ClientInfo->CI_flags & CI_CURTHPRHOOK) ? 1 : 0),
2828  (LPARAM)&CWP,
2829  Hook->Proc,
2830  Hook->ihmod,
2831  Hook->offPfn,
2832  Hook->Ansi,
2833  &Hook->ModuleName);
2834  }
2835  else
2836  {
2837  CWPRETSTRUCT CWPR;
2838  CWPR.hwnd = hWnd;
2839  CWPR.message = Msg;
2840  CWPR.wParam = wParam;
2841  CWPR.lParam = lParam;
2842  CWPR.lResult = ClientInfo->dwHookData;
2843 
2844  lResult = co_IntCallHookProc( Hook->HookId,
2845  HC_ACTION,
2846  ((ClientInfo->CI_flags & CI_CURTHPRHOOK) ? 1 : 0),
2847  (LPARAM)&CWPR,
2848  Hook->Proc,
2849  Hook->ihmod,
2850  Hook->offPfn,
2851  Hook->Ansi,
2852  &Hook->ModuleName);
2853  }
2854  }
2855  break;
2856  }
2857 
2858  switch(dwType)
2859  {
2860  case FNID_DEFWINDOWPROC:
2861  case FNID_CALLWNDPROC:
2862  case FNID_CALLWNDPROCRET:
2863  case FNID_SCROLLBAR:
2864  case FNID_DESKTOP:
2865  case FNID_MENU:
2866  if (ResultInfo)
2867  {
2868  _SEH2_TRY
2869  {
2870  ProbeForWrite((PVOID)ResultInfo, sizeof(LRESULT), 1);
2871  RtlCopyMemory((PVOID)ResultInfo, &lResult, sizeof(LRESULT));
2872  }
2873  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2874  {
2875  Ret = FALSE;
2876  }
2877  _SEH2_END;
2878  }
2879  break;
2880  default:
2881  break;
2882  }
2883 
2884  UserLeave();
2885 
2886  return Ret;
2887 }
2888 
2889 #define INFINITE 0xFFFFFFFF
2890 #define WAIT_FAILED ((DWORD)0xFFFFFFFF)
2891 
2892 DWORD
2893 APIENTRY
2894 NtUserWaitForInputIdle( IN HANDLE hProcess,
2895  IN DWORD dwMilliseconds,
2896  IN BOOL Unknown2)
2897 {
2898  PEPROCESS Process;
2899  PPROCESSINFO W32Process;
2900  PTHREADINFO pti;
2901  NTSTATUS Status;
2902  HANDLE Handles[3];
2903  LARGE_INTEGER Timeout;
2904  KAPC_STATE ApcState;
2905 
2906  UserEnterExclusive();
2907 
2908  Status = ObReferenceObjectByHandle(hProcess,
2909  PROCESS_QUERY_INFORMATION,
2910  *PsProcessType,
2911  UserMode,
2912  (PVOID*)&Process,
2913  NULL);
2914 
2915  if (!NT_SUCCESS(Status))
2916  {
2917  UserLeave();
2918  SetLastNtError(Status);
2919  return WAIT_FAILED;
2920  }
2921 
2922  pti = PsGetCurrentThreadWin32Thread();
2923 
2924  W32Process = (PPROCESSINFO)Process->Win32Process;
2925 
2926  if ( PsGetProcessExitProcessCalled(Process) ||
2927  !W32Process ||
2928  pti->ppi == W32Process)
2929  {
2930  ObDereferenceObject(Process);
2931  UserLeave();
2932  EngSetLastError(ERROR_INVALID_PARAMETER);
2933  return WAIT_FAILED;
2934  }
2935 
2936  Handles[0] = Process;
2937  Handles[1] = W32Process->InputIdleEvent;
2938  Handles[2] = pti->pEventQueueServer; // IntMsqSetWakeMask returns hEventQueueClient
2939 
2940  if (!Handles[1])
2941  {
2942  ObDereferenceObject(Process);
2943  UserLeave();
2944  return STATUS_SUCCESS; /* no event to wait on */
2945  }
2946 
2947  if (dwMilliseconds != INFINITE)
2948  Timeout.QuadPart = (LONGLONG) dwMilliseconds * (LONGLONG) -10000;
2949 
2950  KeStackAttachProcess(&Process->Pcb, &ApcState);
2951 
2952  W32Process->W32PF_flags |= W32PF_WAITFORINPUTIDLE;
2953  for (pti = W32Process->ptiList; pti; pti = pti->ptiSibling)
2954  {
2955  pti->TIF_flags |= TIF_WAITFORINPUTIDLE;
2956  pti->pClientInfo->dwTIFlags = pti->TIF_flags;
2957  }
2958 
2959  KeUnstackDetachProcess(&ApcState);
2960 
2961  TRACE("WFII: ppi %p\n", W32Process);
2962  TRACE("WFII: waiting for %p\n", Handles[1] );
2963 
2964  /*
2965  * We must add a refcount to our current PROCESSINFO,
2966  * because anything could happen (including process death) we're leaving win32k
2967  */
2968  IntReferenceProcessInfo(W32Process);
2969 
2970  do
2971  {
2972  UserLeave();
2973  Status = KeWaitForMultipleObjects( 3,
2974  Handles,
2975  WaitAny,
2976  UserRequest,
2977  UserMode,
2978  FALSE,
2979  dwMilliseconds == INFINITE ? NULL : &Timeout,
2980  NULL);
2981  UserEnterExclusive();
2982 
2983  if (!NT_SUCCESS(Status))
2984  {
2985  SetLastNtError(Status);
2986  Status = WAIT_FAILED;
2987  goto WaitExit;
2988  }
2989 
2990  switch (Status)
2991  {
2992  case STATUS_WAIT_0:
2993  goto WaitExit;
2994 
2995  case STATUS_WAIT_2:
2996  {
2997  MSG Msg;
2998  co_IntGetPeekMessage( &Msg, 0, 0, 0, PM_REMOVE | PM_QS_SENDMESSAGE, FALSE);
2999  ERR("WFII: WAIT 2\n");
3000  }
3001  break;
3002 
3003  case STATUS_TIMEOUT:
3004  ERR("WFII: timeout\n");
3005  case WAIT_FAILED:
3006  goto WaitExit;
3007 
3008  default:
3009  ERR("WFII: finished\n");
3010  Status = STATUS_SUCCESS;
3011  goto WaitExit;
3012  }
3013  }
3014  while (TRUE);
3015 
3016 WaitExit:
3017  for (pti = W32Process->ptiList; pti; pti = pti->ptiSibling)
3018  {
3019  pti->TIF_flags &= ~TIF_WAITFORINPUTIDLE;
3020  pti->pClientInfo->dwTIFlags = pti->TIF_flags;
3021  }
3022  W32Process->W32PF_flags &= ~W32PF_WAITFORINPUTIDLE;
3023  IntDereferenceProcessInfo(W32Process);
3024  ObDereferenceObject(Process);
3025  UserLeave();
3026  return Status;
3027 }
3028 
3029 /* EOF */
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i
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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Implementation of the Explorer desktop window.
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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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#define QS_EVENT
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BOOL APIENTRY IntDdeGetMessageHook(PMSG pMsg, LONG_PTR ExtraInfo)
Definition: dde.c:326
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unsigned long DWORD
Definition: ntddk_ex.h:95
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BOOL APIENTRY NtUserCallMsgFilter(LPMSG lpmsg, INT code)
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Definition: winuser.h:3000
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Definition: msgqueue.h:20
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Definition: winuser.h:3001
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struct _CLIENTINFO * pClientInfo
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Definition: x11stubs.h:26
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VOID APIENTRY co_IntCallSentMessageCallback(SENDASYNCPROC CompletionCallback, HWND hWnd, UINT Msg, ULONG_PTR CompletionCallbackContext, LRESULT Result)
Definition: callback.c:245
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BOOL FASTCALL PostTimerMessages(PWND Window)
Definition: timer.c:395
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GLbitfield flags
Definition: glext.h:7161
PsGetProcessExitProcessCalled
BOOLEAN NTAPI PsGetProcessExitProcessCalled(PEPROCESS Process)
Definition: process.c:1043
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VOID FASTCALL IntCoalesceMouseMove(PTHREADINFO pti)
Definition: msgqueue.c:551
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BOOL FASTCALL UserMessageWindowProc(PWND pwnd, UINT Msg, WPARAM wParam, LPARAM lParam, LRESULT *lResult)
Definition: desktop.c:1487
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#define WM_PAINT
Definition: winuser.h:1602
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#define HCBT_QS
Definition: winuser.h:57
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ASSERT((InvokeOnSuccess||InvokeOnError||InvokeOnCancel) ?(CompletionRoutine !=NULL) :TRUE)
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CHAR Message[80]
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#define ExAllocatePoolWithTag(hernya, size, tag)
Definition: env_spec_w32.h:350
WM_MDIGETACTIVE
#define WM_MDIGETACTIVE
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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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PWND FASTCALL UserGetDesktopWindow(VOID)
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#define FNID_SENDNOTIFYMESSAGE
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LONG timeLast
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Definition: winuser.h:3002
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PUSER_SENT_MESSAGE FASTCALL AllocateUserMessage(BOOL KEvent)
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struct _WND * spwnd
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struct tagHOOK * sphkCurrent
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Definition: message.c:116
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IN PVOID IN PVOID IN USHORT IN USHORT Size
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uint32_t DWORD_PTR
Definition: typedefs.h:63
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ULONG_PTR SIZE_T
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static int is_pointer_message(UINT message)
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VOID FASTCALL IdlePong(VOID)
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NTSTATUS FASTCALL IntCleanupMessageImpl(VOID)
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struct tagNCCALCSIZE_PARAMS NCCALCSIZE_PARAMS
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VOID NTAPI KeUnstackDetachProcess(IN PRKAPC_STATE ApcState)
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#define QS_ALLINPUT
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