ReactOS  0.4.15-dev-5126-g3bb451b
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, WPARAM wparam )
100 {
101  if (message >= 8*sizeof(message_pointer_flags)) return FALSE;
102  if (message == WM_DEVICECHANGE && !(wparam & 0x8000)) return FALSE;
103  return (message_pointer_flags[message / 32] & SET(message)) != 0;
104 }
105 #undef SET
106 
107 #define MMS_SIZE_WPARAM -1
108 #define MMS_SIZE_WPARAMWCHAR -2
109 #define MMS_SIZE_LPARAMSZ -3
110 #define MMS_SIZE_SPECIAL -4
111 #define MMS_FLAG_READ 0x01
112 #define MMS_FLAG_WRITE 0x02
113 #define MMS_FLAG_READWRITE (MMS_FLAG_READ | MMS_FLAG_WRITE)
114 typedef struct tagMSGMEMORY
115 {
116  UINT Message;
117  UINT Size;
118  INT Flags;
119 }
120 MSGMEMORY, *PMSGMEMORY;
121 
122 static MSGMEMORY g_MsgMemory[] =
123 {
124  { WM_CREATE, MMS_SIZE_SPECIAL, MMS_FLAG_READWRITE },
125  { WM_GETMINMAXINFO, sizeof(MINMAXINFO), MMS_FLAG_READWRITE },
126  { WM_GETTEXT, MMS_SIZE_WPARAMWCHAR, MMS_FLAG_WRITE },
127  { WM_NCCALCSIZE, MMS_SIZE_SPECIAL, MMS_FLAG_READWRITE },
128  { WM_NCCREATE, MMS_SIZE_SPECIAL, MMS_FLAG_READWRITE },
129  { WM_SETTEXT, MMS_SIZE_LPARAMSZ, MMS_FLAG_READ },
130  { WM_STYLECHANGED, sizeof(STYLESTRUCT), MMS_FLAG_READ },
131  { WM_STYLECHANGING, sizeof(STYLESTRUCT), MMS_FLAG_READWRITE },
132  { WM_SETTINGCHANGE, MMS_SIZE_LPARAMSZ, MMS_FLAG_READ },
133  { WM_COPYDATA, MMS_SIZE_SPECIAL, MMS_FLAG_READ },
134  { WM_COPYGLOBALDATA, MMS_SIZE_WPARAM, MMS_FLAG_READ },
135  { WM_WINDOWPOSCHANGED, sizeof(WINDOWPOS), MMS_FLAG_READWRITE },
136  { WM_WINDOWPOSCHANGING, sizeof(WINDOWPOS), MMS_FLAG_READWRITE },
137  { WM_SIZING, sizeof(RECT), MMS_FLAG_READWRITE },
138  { WM_MOVING, sizeof(RECT), MMS_FLAG_READWRITE },
139  { WM_MEASUREITEM, sizeof(MEASUREITEMSTRUCT), MMS_FLAG_READWRITE },
140  { WM_DRAWITEM, sizeof(DRAWITEMSTRUCT), MMS_FLAG_READWRITE },
141  { WM_HELP, sizeof(HELPINFO), MMS_FLAG_READWRITE },
142  { WM_NEXTMENU, sizeof(MDINEXTMENU), MMS_FLAG_READWRITE },
143  { WM_DEVICECHANGE, MMS_SIZE_SPECIAL, MMS_FLAG_READ },
144 };
145 
146 static PMSGMEMORY FASTCALL
147 FindMsgMemory(UINT Msg)
148 {
149  PMSGMEMORY MsgMemoryEntry;
150 
151  /* See if this message type is present in the table */
152  for (MsgMemoryEntry = g_MsgMemory;
153  MsgMemoryEntry < g_MsgMemory + sizeof(g_MsgMemory) / sizeof(MSGMEMORY);
154  MsgMemoryEntry++)
155  {
156  if (Msg == MsgMemoryEntry->Message)
157  {
158  return MsgMemoryEntry;
159  }
160  }
161 
162  return NULL;
163 }
164 
165 static UINT FASTCALL
166 MsgMemorySize(PMSGMEMORY MsgMemoryEntry, WPARAM wParam, LPARAM lParam)
167 {
168  CREATESTRUCTW *Cs;
169  PLARGE_STRING WindowName;
170  PUNICODE_STRING ClassName;
171  UINT Size = 0;
172 
173  _SEH2_TRY
174  {
175  if (MMS_SIZE_WPARAM == MsgMemoryEntry->Size)
176  {
177  Size = (UINT)wParam;
178  }
179  else if (MMS_SIZE_WPARAMWCHAR == MsgMemoryEntry->Size)
180  {
181  Size = (UINT) (wParam * sizeof(WCHAR));
182  }
183  else if (MMS_SIZE_LPARAMSZ == MsgMemoryEntry->Size)
184  {
185  // WM_SETTEXT and WM_SETTINGCHANGE can be null!
186  if (!lParam)
187  {
188  TRACE("lParam is NULL!\n");
189  Size = 0;
190  }
191  else
192  Size = (UINT) ((wcslen((PWSTR) lParam) + 1) * sizeof(WCHAR));
193  }
194  else if (MMS_SIZE_SPECIAL == MsgMemoryEntry->Size)
195  {
196  switch(MsgMemoryEntry->Message)
197  {
198  case WM_CREATE:
199  case WM_NCCREATE:
200  Cs = (CREATESTRUCTW *) lParam;
201  WindowName = (PLARGE_STRING) Cs->lpszName;
202  ClassName = (PUNICODE_STRING) Cs->lpszClass;
203  Size = sizeof(CREATESTRUCTW) + WindowName->Length + sizeof(WCHAR);
204  if (IS_ATOM(ClassName->Buffer))
205  {
206  Size += sizeof(WCHAR) + sizeof(ATOM);
207  }
208  else
209  {
210  Size += sizeof(WCHAR) + ClassName->Length + sizeof(WCHAR);
211  }
212  break;
213 
214  case WM_NCCALCSIZE:
215  Size = wParam ? sizeof(NCCALCSIZE_PARAMS) + sizeof(WINDOWPOS) : sizeof(RECT);
216  break;
217 
218  case WM_COPYDATA:
219  {
220  COPYDATASTRUCT *cds = (COPYDATASTRUCT *)lParam;
221  Size = sizeof(COPYDATASTRUCT) + cds->cbData;
222  }
223  break;
224 
225  case WM_DEVICECHANGE:
226  {
227  if ( lParam && (wParam & 0x8000) )
228  {
229  DEV_BROADCAST_HDR *header = (DEV_BROADCAST_HDR *)lParam;
230  Size = header->dbch_size;
231  }
232  }
233  break;
234 
235  default:
236  ASSERT(FALSE);
237  Size = 0;
238  break;
239  }
240  }
241  else
242  {
243  Size = MsgMemoryEntry->Size;
244  }
245  }
246  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
247  {
248  ERR("Exception caught in MsgMemorySize()! Status: 0x%x\n", _SEH2_GetExceptionCode());
249  Size = 0;
250  }
251  _SEH2_END;
252  return Size;
253 }
254 
255 UINT lParamMemorySize(UINT Msg, WPARAM wParam, LPARAM lParam)
256 {
257  PMSGMEMORY MsgMemoryEntry = FindMsgMemory(Msg);
258  if(MsgMemoryEntry == NULL) return 0;
259  return MsgMemorySize(MsgMemoryEntry, wParam, lParam);
260 }
261 
262 static NTSTATUS
263 PackParam(LPARAM *lParamPacked, UINT Msg, WPARAM wParam, LPARAM lParam, BOOL NonPagedPoolNeeded)
264 {
265  NCCALCSIZE_PARAMS *UnpackedNcCalcsize;
266  NCCALCSIZE_PARAMS *PackedNcCalcsize;
267  CREATESTRUCTW *UnpackedCs;
268  CREATESTRUCTW *PackedCs;
269  PLARGE_STRING WindowName;
270  PUNICODE_STRING ClassName;
271  POOL_TYPE PoolType;
272  UINT Size;
273  PCHAR CsData;
274 
275  *lParamPacked = lParam;
276 
277  if (NonPagedPoolNeeded)
278  PoolType = NonPagedPool;
279  else
280  PoolType = PagedPool;
281 
282  if (WM_NCCALCSIZE == Msg && wParam)
283  {
284 
285  UnpackedNcCalcsize = (NCCALCSIZE_PARAMS *) lParam;
286  PackedNcCalcsize = ExAllocatePoolWithTag(PoolType,
287  sizeof(NCCALCSIZE_PARAMS) + sizeof(WINDOWPOS),
288  TAG_MSG);
289 
290  if (NULL == PackedNcCalcsize)
291  {
292  ERR("Not enough memory to pack lParam\n");
293  return STATUS_NO_MEMORY;
294  }
295  RtlCopyMemory(PackedNcCalcsize, UnpackedNcCalcsize, sizeof(NCCALCSIZE_PARAMS));
296  PackedNcCalcsize->lppos = (PWINDOWPOS) (PackedNcCalcsize + 1);
297  RtlCopyMemory(PackedNcCalcsize->lppos, UnpackedNcCalcsize->lppos, sizeof(WINDOWPOS));
298  *lParamPacked = (LPARAM) PackedNcCalcsize;
299  }
300  else if (WM_CREATE == Msg || WM_NCCREATE == Msg)
301  {
302  UnpackedCs = (CREATESTRUCTW *) lParam;
303  WindowName = (PLARGE_STRING) UnpackedCs->lpszName;
304  ClassName = (PUNICODE_STRING) UnpackedCs->lpszClass;
305  Size = sizeof(CREATESTRUCTW) + WindowName->Length + sizeof(WCHAR);
306  if (IS_ATOM(ClassName->Buffer))
307  {
308  Size += sizeof(WCHAR) + sizeof(ATOM);
309  }
310  else
311  {
312  Size += sizeof(WCHAR) + ClassName->Length + sizeof(WCHAR);
313  }
314  PackedCs = ExAllocatePoolWithTag(PoolType, Size, TAG_MSG);
315  if (NULL == PackedCs)
316  {
317  ERR("Not enough memory to pack lParam\n");
318  return STATUS_NO_MEMORY;
319  }
320  RtlCopyMemory(PackedCs, UnpackedCs, sizeof(CREATESTRUCTW));
321  CsData = (PCHAR) (PackedCs + 1);
322  PackedCs->lpszName = (LPCWSTR) (CsData - (PCHAR) PackedCs);
323  RtlCopyMemory(CsData, WindowName->Buffer, WindowName->Length);
324  CsData += WindowName->Length;
325  *((WCHAR *) CsData) = L'\0';
326  CsData += sizeof(WCHAR);
327  PackedCs->lpszClass = (LPCWSTR) (CsData - (PCHAR) PackedCs);
328  if (IS_ATOM(ClassName->Buffer))
329  {
330  *((WCHAR *) CsData) = L'A';
331  CsData += sizeof(WCHAR);
332  *((ATOM *) CsData) = (ATOM)(DWORD_PTR) ClassName->Buffer;
333  CsData += sizeof(ATOM);
334  }
335  else
336  {
337  NT_ASSERT(ClassName->Buffer != NULL);
338  *((WCHAR *) CsData) = L'S';
339  CsData += sizeof(WCHAR);
340  RtlCopyMemory(CsData, ClassName->Buffer, ClassName->Length);
341  CsData += ClassName->Length;
342  *((WCHAR *) CsData) = L'\0';
343  CsData += sizeof(WCHAR);
344  }
345  ASSERT(CsData == (PCHAR) PackedCs + Size);
346  *lParamPacked = (LPARAM) PackedCs;
347  }
348  else if (PoolType == NonPagedPool)
349  {
350  PMSGMEMORY MsgMemoryEntry;
351  PVOID PackedData;
352  SIZE_T size;
353 
354  MsgMemoryEntry = FindMsgMemory(Msg);
355 
356  if (!MsgMemoryEntry)
357  {
358  /* Keep previous behavior */
359  return STATUS_SUCCESS;
360  }
361  size = MsgMemorySize(MsgMemoryEntry, wParam, lParam);
362  if (!size)
363  {
364  ERR("No size for lParamPacked\n");
365  return STATUS_SUCCESS;
366  }
367  PackedData = ExAllocatePoolWithTag(NonPagedPool, size, TAG_MSG);
368  if (PackedData == NULL)
369  {
370  ERR("Not enough memory to pack lParam\n");
371  return STATUS_NO_MEMORY;
372  }
373  RtlCopyMemory(PackedData, (PVOID)lParam, MsgMemorySize(MsgMemoryEntry, wParam, lParam));
374  *lParamPacked = (LPARAM)PackedData;
375  }
376 
377  return STATUS_SUCCESS;
378 }
379 
380 static NTSTATUS
381 UnpackParam(LPARAM lParamPacked, UINT Msg, WPARAM wParam, LPARAM lParam, BOOL NonPagedPoolUsed)
382 {
383  NCCALCSIZE_PARAMS *UnpackedParams;
384  NCCALCSIZE_PARAMS *PackedParams;
385  PWINDOWPOS UnpackedWindowPos;
386 
387  if (lParamPacked == lParam)
388  {
389  return STATUS_SUCCESS;
390  }
391 
392  if (WM_NCCALCSIZE == Msg && wParam)
393  {
394  PackedParams = (NCCALCSIZE_PARAMS *) lParamPacked;
395  UnpackedParams = (NCCALCSIZE_PARAMS *) lParam;
396  UnpackedWindowPos = UnpackedParams->lppos;
397  RtlCopyMemory(UnpackedParams, PackedParams, sizeof(NCCALCSIZE_PARAMS));
398  UnpackedParams->lppos = UnpackedWindowPos;
399  RtlCopyMemory(UnpackedWindowPos, PackedParams + 1, sizeof(WINDOWPOS));
400  ExFreePool((PVOID) lParamPacked);
401 
402  return STATUS_SUCCESS;
403  }
404  else if (WM_CREATE == Msg || WM_NCCREATE == Msg)
405  {
406  ExFreePool((PVOID) lParamPacked);
407 
408  return STATUS_SUCCESS;
409  }
410  else if (NonPagedPoolUsed)
411  {
412  PMSGMEMORY MsgMemoryEntry;
413  MsgMemoryEntry = FindMsgMemory(Msg);
414  ASSERT(MsgMemoryEntry);
415 
416  if (MsgMemoryEntry->Flags == MMS_FLAG_READWRITE)
417  {
418  //RtlCopyMemory((PVOID)lParam, (PVOID)lParamPacked, MsgMemoryEntry->Size);
419  }
420  ExFreePool((PVOID) lParamPacked);
421  return STATUS_SUCCESS;
422  }
423 
424  ASSERT(FALSE);
425 
426  return STATUS_INVALID_PARAMETER;
427 }
428 
429 static NTSTATUS FASTCALL
430 CopyMsgToKernelMem(MSG *KernelModeMsg, MSG *UserModeMsg, PMSGMEMORY MsgMemoryEntry)
431 {
432  NTSTATUS Status;
433 
434  PVOID KernelMem;
435  UINT Size;
436 
437  *KernelModeMsg = *UserModeMsg;
438 
439  /* See if this message type is present in the table */
440  if (NULL == MsgMemoryEntry)
441  {
442  /* Not present, no copying needed */
443  return STATUS_SUCCESS;
444  }
445 
446  /* Determine required size */
447  Size = MsgMemorySize(MsgMemoryEntry, UserModeMsg->wParam, UserModeMsg->lParam);
448 
449  if (0 != Size)
450  {
451  /* Allocate kernel mem */
452  KernelMem = ExAllocatePoolWithTag(PagedPool, Size, TAG_MSG);
453  if (NULL == KernelMem)
454  {
455  ERR("Not enough memory to copy message to kernel mem\n");
456  return STATUS_NO_MEMORY;
457  }
458  KernelModeMsg->lParam = (LPARAM) KernelMem;
459 
460  /* Copy data if required */
461  if (0 != (MsgMemoryEntry->Flags & MMS_FLAG_READ))
462  {
463  TRACE("Copy Message %u from usermode buffer\n", KernelModeMsg->message);
464  Status = MmCopyFromCaller(KernelMem, (PVOID) UserModeMsg->lParam, Size);
465  if (! NT_SUCCESS(Status))
466  {
467  ERR("Failed to copy message to kernel: invalid usermode lParam buffer\n");
468  ExFreePoolWithTag(KernelMem, TAG_MSG);
469  return Status;
470  }
471  }
472  else
473  {
474  /* Make sure we don't pass any secrets to usermode */
475  RtlZeroMemory(KernelMem, Size);
476  }
477  }
478  else
479  {
480  KernelModeMsg->lParam = 0;
481  }
482 
483  return STATUS_SUCCESS;
484 }
485 
486 static NTSTATUS FASTCALL
487 CopyMsgToUserMem(MSG *UserModeMsg, MSG *KernelModeMsg)
488 {
489  NTSTATUS Status;
490  PMSGMEMORY MsgMemoryEntry;
491  UINT Size;
492 
493  /* See if this message type is present in the table */
494  MsgMemoryEntry = FindMsgMemory(UserModeMsg->message);
495  if (NULL == MsgMemoryEntry)
496  {
497  /* Not present, no copying needed */
498  return STATUS_SUCCESS;
499  }
500 
501  /* Determine required size */
502  Size = MsgMemorySize(MsgMemoryEntry, UserModeMsg->wParam, UserModeMsg->lParam);
503 
504  if (0 != Size)
505  {
506  /* Copy data if required */
507  if (0 != (MsgMemoryEntry->Flags & MMS_FLAG_WRITE))
508  {
509  Status = MmCopyToCaller((PVOID) UserModeMsg->lParam, (PVOID) KernelModeMsg->lParam, Size);
510  if (! NT_SUCCESS(Status))
511  {
512  ERR("Failed to copy message from kernel: invalid usermode lParam buffer\n");
513  ExFreePool((PVOID) KernelModeMsg->lParam);
514  return Status;
515  }
516  }
517  ExFreePool((PVOID) KernelModeMsg->lParam);
518  }
519 
520  return STATUS_SUCCESS;
521 }
522 
523 //
524 // Wakeup any thread/process waiting on idle input.
525 //
526 VOID FASTCALL
527 IdlePing(VOID)
528 {
529  PPROCESSINFO ppi = PsGetCurrentProcessWin32Process();
530  PTHREADINFO pti;
531 
532  pti = PsGetCurrentThreadWin32Thread();
533 
534  if ( pti )
535  {
536  pti->pClientInfo->cSpins = 0; // Reset spins.
537 
538  if ( pti->pDeskInfo && pti == gptiForeground )
539  {
540  if ( pti->fsHooks & HOOKID_TO_FLAG(WH_FOREGROUNDIDLE) ||
541  pti->pDeskInfo->fsHooks & HOOKID_TO_FLAG(WH_FOREGROUNDIDLE) )
542  {
543  co_HOOK_CallHooks(WH_FOREGROUNDIDLE,HC_ACTION,0,0);
544  }
545  }
546  }
547 
548  TRACE("IdlePing ppi %p\n", ppi);
549  if ( ppi && ppi->InputIdleEvent )
550  {
551  TRACE("InputIdleEvent\n");
552  KeSetEvent( ppi->InputIdleEvent, IO_NO_INCREMENT, FALSE);
553  }
554 }
555 
556 VOID FASTCALL
557 IdlePong(VOID)
558 {
559  PPROCESSINFO ppi = PsGetCurrentProcessWin32Process();
560 
561  TRACE("IdlePong ppi %p\n", ppi);
562  if ( ppi && ppi->InputIdleEvent )
563  {
564  KeClearEvent(ppi->InputIdleEvent);
565  }
566 }
567 
568 static BOOL is_message_broadcastable(UINT msg)
569 {
570  return msg < WM_USER || msg >= 0xc000;
571 }
572 
573 UINT FASTCALL
574 GetWakeMask(UINT first, UINT last )
575 {
576  UINT mask = QS_POSTMESSAGE | QS_SENDMESSAGE; /* Always selected */
577 
578  if (first || last)
579  {
580  if ((first <= WM_KEYLAST) && (last >= WM_KEYFIRST)) mask |= QS_KEY;
581  if ( ((first <= WM_MOUSELAST) && (last >= WM_MOUSEFIRST)) ||
582  ((first <= WM_NCMOUSELAST) && (last >= WM_NCMOUSEFIRST)) ) mask |= QS_MOUSE;
583  if ((first <= WM_TIMER) && (last >= WM_TIMER)) mask |= QS_TIMER;
584  if ((first <= WM_SYSTIMER) && (last >= WM_SYSTIMER)) mask |= QS_TIMER;
585  if ((first <= WM_PAINT) && (last >= WM_PAINT)) mask |= QS_PAINT;
586  }
587  else mask = QS_ALLINPUT;
588 
589  return mask;
590 }
591 
592 //
593 // Pass Strings to User Heap Space for Message Hook Callbacks.
594 //
595 BOOL
596 FASTCALL
597 IntMsgCreateStructW(
598  PWND Window,
599  CREATESTRUCTW *pCsw,
600  CREATESTRUCTW *Cs,
601  PVOID *ppszClass,
602  PVOID *ppszName )
603 {
604  PLARGE_STRING WindowName;
605  PUNICODE_STRING ClassName;
606  PVOID pszClass = NULL, pszName = NULL;
607 
608  /* Fill the new CREATESTRUCTW */
609  RtlCopyMemory(pCsw, Cs, sizeof(CREATESTRUCTW));
610  pCsw->style = Window->style; /* HCBT_CREATEWND needs the real window style */
611 
612  WindowName = (PLARGE_STRING) Cs->lpszName;
613  ClassName = (PUNICODE_STRING) Cs->lpszClass;
614 
615  // Based on the assumption this is from "unicode source" user32, ReactOS, answer is yes.
616  if (!IS_ATOM(ClassName->Buffer))
617  {
618  if (ClassName->Length)
619  {
620  if (Window->state & WNDS_ANSICREATOR)
621  {
622  ANSI_STRING AnsiString;
623  AnsiString.MaximumLength = (USHORT)RtlUnicodeStringToAnsiSize(ClassName)+sizeof(CHAR);
624  pszClass = UserHeapAlloc(AnsiString.MaximumLength);
625  if (!pszClass)
626  {
627  ERR("UserHeapAlloc() failed!\n");
628  return FALSE;
629  }
630  RtlZeroMemory(pszClass, AnsiString.MaximumLength);
631  AnsiString.Buffer = (PCHAR)pszClass;
632  RtlUnicodeStringToAnsiString(&AnsiString, ClassName, FALSE);
633  }
634  else
635  {
636  UNICODE_STRING UnicodeString;
637  UnicodeString.MaximumLength = ClassName->Length + sizeof(UNICODE_NULL);
638  pszClass = UserHeapAlloc(UnicodeString.MaximumLength);
639  if (!pszClass)
640  {
641  ERR("UserHeapAlloc() failed!\n");
642  return FALSE;
643  }
644  RtlZeroMemory(pszClass, UnicodeString.MaximumLength);
645  UnicodeString.Buffer = (PWSTR)pszClass;
646  RtlCopyUnicodeString(&UnicodeString, ClassName);
647  }
648  *ppszClass = pszClass;
649  pCsw->lpszClass = UserHeapAddressToUser(pszClass);
650  }
651  else
652  {
653  pCsw->lpszClass = NULL;
654  }
655  }
656  else
657  {
658  pCsw->lpszClass = ClassName->Buffer;
659  }
660  if (WindowName->Length)
661  {
662  UNICODE_STRING Name;
663  Name.Buffer = WindowName->Buffer;
664  Name.Length = (USHORT)min(WindowName->Length, MAXUSHORT); // FIXME: LARGE_STRING truncated
665  Name.MaximumLength = (USHORT)min(WindowName->MaximumLength, MAXUSHORT);
666 
667  if (Window->state & WNDS_ANSICREATOR)
668  {
669  ANSI_STRING AnsiString;
670  AnsiString.MaximumLength = (USHORT)RtlUnicodeStringToAnsiSize(&Name) + sizeof(CHAR);
671  pszName = UserHeapAlloc(AnsiString.MaximumLength);
672  if (!pszName)
673  {
674  ERR("UserHeapAlloc() failed!\n");
675  return FALSE;
676  }
677  RtlZeroMemory(pszName, AnsiString.MaximumLength);
678  AnsiString.Buffer = (PCHAR)pszName;
679  RtlUnicodeStringToAnsiString(&AnsiString, &Name, FALSE);
680  }
681  else
682  {
683  UNICODE_STRING UnicodeString;
684  UnicodeString.MaximumLength = Name.Length + sizeof(UNICODE_NULL);
685  pszName = UserHeapAlloc(UnicodeString.MaximumLength);
686  if (!pszName)
687  {
688  ERR("UserHeapAlloc() failed!\n");
689  return FALSE;
690  }
691  RtlZeroMemory(pszName, UnicodeString.MaximumLength);
692  UnicodeString.Buffer = (PWSTR)pszName;
693  RtlCopyUnicodeString(&UnicodeString, &Name);
694  }
695  *ppszName = pszName;
696  pCsw->lpszName = UserHeapAddressToUser(pszName);
697  }
698  else
699  {
700  pCsw->lpszName = NULL;
701  }
702 
703  return TRUE;
704 }
705 
706 static VOID FASTCALL
707 IntCallWndProc( PWND Window, HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam )
708 {
709  BOOL SameThread = FALSE;
710  CWPSTRUCT CWP;
711  PVOID pszClass = NULL, pszName = NULL;
712  CREATESTRUCTW Csw;
713 
715  if ( !ISITHOOKED(WH_CALLWNDPROC) && !(Window->head.rpdesk->pDeskInfo->fsHooks & HOOKID_TO_FLAG(WH_CALLWNDPROC)) )
716  return;
717 
718  if (Window->head.pti == ((PTHREADINFO)PsGetCurrentThreadWin32Thread()))
719  SameThread = TRUE;
720 
721  if ( Msg == WM_CREATE || Msg == WM_NCCREATE )
722  { //
723  // String pointers are in user heap space, like WH_CBT HCBT_CREATEWND.
724  //
725  if (!IntMsgCreateStructW( Window, &Csw, (CREATESTRUCTW *)lParam, &pszClass, &pszName ))
726  return;
727  lParam = (LPARAM)&Csw;
728  }
729 
730  CWP.hwnd = hWnd;
731  CWP.message = Msg;
732  CWP.wParam = wParam;
733  CWP.lParam = lParam;
734  co_HOOK_CallHooks( WH_CALLWNDPROC, HC_ACTION, SameThread, (LPARAM)&CWP );
735 
736  if (pszName) UserHeapFree(pszName);
737  if (pszClass) UserHeapFree(pszClass);
738 }
739 
740 static VOID FASTCALL
741 IntCallWndProcRet( PWND Window, HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, LRESULT *uResult )
742 {
743  BOOL SameThread = FALSE;
744  CWPRETSTRUCT CWPR;
745  PVOID pszClass = NULL, pszName = NULL;
746  CREATESTRUCTW Csw;
747 
748  if ( !ISITHOOKED(WH_CALLWNDPROCRET) && !(Window->head.rpdesk->pDeskInfo->fsHooks & HOOKID_TO_FLAG(WH_CALLWNDPROCRET)) )
749  return;
750 
751  if (Window->head.pti == ((PTHREADINFO)PsGetCurrentThreadWin32Thread()))
752  SameThread = TRUE;
753 
754  if ( Msg == WM_CREATE || Msg == WM_NCCREATE )
755  {
756  if (!IntMsgCreateStructW( Window, &Csw, (CREATESTRUCTW *)lParam, &pszClass, &pszName ))
757  return;
758  lParam = (LPARAM)&Csw;
759  }
760 
761  CWPR.hwnd = hWnd;
762  CWPR.message = Msg;
763  CWPR.wParam = wParam;
764  CWPR.lParam = lParam;
765  CWPR.lResult = uResult ? (*uResult) : 0;
766  co_HOOK_CallHooks( WH_CALLWNDPROCRET, HC_ACTION, SameThread, (LPARAM)&CWPR );
767 
768  if (pszName) UserHeapFree(pszName);
769  if (pszClass) UserHeapFree(pszClass);
770 }
771 
772 static LRESULT handle_internal_message( PWND pWnd, UINT msg, WPARAM wparam, LPARAM lparam )
773 {
774  LRESULT lRes;
775 // USER_REFERENCE_ENTRY Ref;
776 // PTHREADINFO pti = PsGetCurrentThreadWin32Thread();
777 
778  if (!pWnd || UserIsDesktopWindow(pWnd) || UserIsMessageWindow(pWnd))
779  return 0;
780 
781  TRACE("Internal Event Msg 0x%x hWnd 0x%p\n", msg, pWnd->head.h);
782 
783  switch(msg)
784  {
785  case WM_ASYNC_SHOWWINDOW:
786  return co_WinPosShowWindow( pWnd, wparam );
787  case WM_ASYNC_SETWINDOWPOS:
788  {
789  PWINDOWPOS winpos = (PWINDOWPOS)lparam;
790  if (!winpos) return 0;
791  lRes = co_WinPosSetWindowPos( pWnd,
792  winpos->hwndInsertAfter,
793  winpos->x,
794  winpos->y,
795  winpos->cx,
796  winpos->cy,
797  winpos->flags);
798  ExFreePoolWithTag(winpos, USERTAG_SWP);
799  return lRes;
800  }
801  case WM_ASYNC_DESTROYWINDOW:
802  {
803  TRACE("WM_ASYNC_DESTROYWINDOW\n");
804  if (pWnd->style & WS_CHILD)
805  return co_UserFreeWindow(pWnd, PsGetCurrentProcessWin32Process(), PsGetCurrentThreadWin32Thread(), TRUE);
806  else
807  co_UserDestroyWindow(pWnd);
808  }
809  }
810  return 0;
811 }
812 
813 static LRESULT handle_internal_events( PTHREADINFO pti, PWND pWnd, DWORD dwQEvent, LONG_PTR ExtraInfo, PMSG pMsg)
814 {
815  LRESULT Result = 0;
816 
817  switch(dwQEvent)
818  {
819  case POSTEVENT_NWE:
820  {
821  co_EVENT_CallEvents( pMsg->message, pMsg->hwnd, pMsg->wParam, ExtraInfo);
822  }
823  break;
824  case POSTEVENT_SAW:
825  {
826  //ERR("HIE : SAW : pti 0x%p hWnd 0x%p\n",pti,pMsg->hwnd);
827  IntActivateWindow((PWND)pMsg->wParam, pti, (HANDLE)pMsg->lParam, (DWORD)ExtraInfo);
828  }
829  break;
830  case POSTEVENT_DAW:
831  {
832  //ERR("HIE : DAW : pti 0x%p tid 0x%p hWndPrev 0x%p\n",pti,ExtraInfo,pMsg->hwnd);
833  IntDeactivateWindow(pti, (HANDLE)ExtraInfo);
834  }
835  break;
836  }
837  return Result;
838 }
839 
840 LRESULT FASTCALL
841 IntDispatchMessage(PMSG pMsg)
842 {
843  LONG Time;
844  LRESULT retval = 0;
845  PTHREADINFO pti;
846  PWND Window = NULL;
847  BOOL DoCallBack = TRUE;
848 
849  if (pMsg->hwnd)
850  {
851  Window = UserGetWindowObject(pMsg->hwnd);
852  if (!Window) return 0;
853  }
854 
855  pti = PsGetCurrentThreadWin32Thread();
856 
857  if ( Window && Window->head.pti != pti)
858  {
859  EngSetLastError( ERROR_MESSAGE_SYNC_ONLY );
860  return 0;
861  }
862 
863  if (((pMsg->message == WM_SYSTIMER) ||
864  (pMsg->message == WM_TIMER)) &&
865  (pMsg->lParam) )
866  {
867  if (pMsg->message == WM_TIMER)
868  {
869  if (ValidateTimerCallback(pti,pMsg->lParam))
870  {
871  Time = EngGetTickCount32();
872  retval = co_IntCallWindowProc((WNDPROC)pMsg->lParam,
873  TRUE,
874  pMsg->hwnd,
875  WM_TIMER,
876  pMsg->wParam,
877  (LPARAM)Time,
878  -1);
879  }
880  return retval;
881  }
882  else
883  {
884  PTIMER pTimer = FindSystemTimer(pMsg);
885  if (pTimer && pTimer->pfn)
886  {
887  Time = EngGetTickCount32();
888  pTimer->pfn(pMsg->hwnd, WM_SYSTIMER, (UINT)pMsg->wParam, Time);
889  }
890  return 0;
891  }
892  }
893  // Need a window!
894  if ( !Window ) return 0;
895 
896  if (pMsg->message == WM_PAINT) Window->state |= WNDS_PAINTNOTPROCESSED;
897 
898  if ( Window->state & WNDS_SERVERSIDEWINDOWPROC )
899  {
900  TRACE("Dispatch: Server Side Window Procedure\n");
901  switch(Window->fnid)
902  {
903  case FNID_DESKTOP:
904  DoCallBack = !DesktopWindowProc( Window,
905  pMsg->message,
906  pMsg->wParam,
907  pMsg->lParam,
908  &retval);
909  break;
910  case FNID_MESSAGEWND:
911  DoCallBack = !UserMessageWindowProc( Window,
912  pMsg->message,
913  pMsg->wParam,
914  pMsg->lParam,
915  &retval);
916  break;
917  case FNID_MENU:
918  DoCallBack = !PopupMenuWndProc( Window,
919  pMsg->message,
920  pMsg->wParam,
921  pMsg->lParam,
922  &retval);
923  break;
924  }
925  }
926 
927  /* Since we are doing a callback on the same thread right away, there is
928  no need to copy the lparam to kernel mode and then back to usermode.
929  We just pretend it isn't a pointer */
930 
931  if (DoCallBack)
932  retval = co_IntCallWindowProc( Window->lpfnWndProc,
933  !Window->Unicode,
934  pMsg->hwnd,
935  pMsg->message,
936  pMsg->wParam,
937  pMsg->lParam,
938  -1);
939 
940  if ( pMsg->message == WM_PAINT &&
941  VerifyWnd(Window) &&
942  Window->state & WNDS_PAINTNOTPROCESSED ) // <--- Cleared, paint was already processed!
943  {
944  Window->state2 &= ~WNDS2_WMPAINTSENT;
945  /* send a WM_ERASEBKGND if the non-client area is still invalid */
946  ERR("Message WM_PAINT count %d Internal Paint Set? %s\n",Window->head.pti->cPaintsReady, Window->state & WNDS_INTERNALPAINT ? "TRUE" : "FALSE");
947  IntPaintWindow( Window );
948  }
949 
950  return retval;
951 }
952 
953 /*
954  * Internal version of PeekMessage() doing all the work
955  *
956  * MSDN:
957  * Sent messages
958  * Posted messages
959  * Input (hardware) messages and system internal events
960  * Sent messages (again)
961  * WM_PAINT messages
962  * WM_TIMER messages
963  */
964 BOOL APIENTRY
965 co_IntPeekMessage( PMSG Msg,
966  PWND Window,
967  UINT MsgFilterMin,
968  UINT MsgFilterMax,
969  UINT RemoveMsg,
970  LONG_PTR *ExtraInfo,
971  BOOL bGMSG )
972 {
973  PTHREADINFO pti;
974  BOOL RemoveMessages;
975  UINT ProcessMask;
976  BOOL Hit = FALSE;
977 
978  pti = PsGetCurrentThreadWin32Thread();
979 
980  RemoveMessages = RemoveMsg & PM_REMOVE;
981  ProcessMask = HIWORD(RemoveMsg);
982 
983  /* Hint, "If wMsgFilterMin and wMsgFilterMax are both zero, PeekMessage returns
984  all available messages (that is, no range filtering is performed)". */
985  if (!ProcessMask) ProcessMask = (QS_ALLPOSTMESSAGE|QS_ALLINPUT);
986 
987  IdlePong();
988 
989  do
990  {
991  /* Update the last message-queue access time */
992  pti->pcti->timeLastRead = EngGetTickCount32();
993 
994  // Post mouse moves while looping through peek messages.
995  if (pti->MessageQueue->QF_flags & QF_MOUSEMOVED)
996  {
997  IntCoalesceMouseMove(pti);
998  }
999 
1000  /* Dispatch sent messages here. */
1001  while ( co_MsqDispatchOneSentMessage(pti) )
1002  {
1003  /* if some PM_QS* flags were specified, only handle sent messages from now on */
1004  if (HIWORD(RemoveMsg) && !bGMSG) Hit = TRUE; // wine does this; ProcessMask = QS_SENDMESSAGE;
1005  }
1006  if (Hit) return FALSE;
1007 
1008  /* Clear changed bits so we can wait on them if we don't find a message */
1009  if (ProcessMask & QS_POSTMESSAGE)
1010  {
1011  pti->pcti->fsChangeBits &= ~(QS_POSTMESSAGE | QS_HOTKEY | QS_TIMER);
1012  if (MsgFilterMin == 0 && MsgFilterMax == 0) // Wine hack does this; ~0U)
1013  {
1014  pti->pcti->fsChangeBits &= ~QS_ALLPOSTMESSAGE;
1015  }
1016  }
1017 
1018  if (ProcessMask & QS_INPUT)
1019  {
1020  pti->pcti->fsChangeBits &= ~QS_INPUT;
1021  }
1022 
1023  /* Now check for normal messages. */
1024  if (( (ProcessMask & QS_POSTMESSAGE) ||
1025  (ProcessMask & QS_HOTKEY) ) &&
1026  MsqPeekMessage( pti,
1027  RemoveMessages,
1028  Window,
1029  MsgFilterMin,
1030  MsgFilterMax,
1031  ProcessMask,
1032  ExtraInfo,
1033  0,
1034  Msg ))
1035  {
1036  goto GotMessage;
1037  }
1038 
1039  /* Only check for quit messages if not posted messages pending. */
1040  if (ProcessMask & QS_POSTMESSAGE && pti->QuitPosted)
1041  {
1042  /* According to the PSDK, WM_QUIT messages are always returned, regardless
1043  of the filter specified */
1044  Msg->hwnd = NULL;
1045  Msg->message = WM_QUIT;
1046  Msg->wParam = pti->exitCode;
1047  Msg->lParam = 0;
1048  if (RemoveMessages)
1049  {
1050  pti->QuitPosted = FALSE;
1051  ClearMsgBitsMask(pti, QS_POSTMESSAGE);
1052  pti->pcti->fsWakeBits &= ~QS_ALLPOSTMESSAGE;
1053  pti->pcti->fsChangeBits &= ~QS_ALLPOSTMESSAGE;
1054  }
1055  goto GotMessage;
1056  }
1057 
1058  /* Check for hardware events. */
1059  if ((ProcessMask & QS_INPUT) &&
1060  co_MsqPeekHardwareMessage( pti,
1061  RemoveMessages,
1062  Window,
1063  MsgFilterMin,
1064  MsgFilterMax,
1065  ProcessMask,
1066  Msg))
1067  {
1068  goto GotMessage;
1069  }
1070 
1071  /* Now check for System Event messages. */
1072  {
1073  LONG_PTR eExtraInfo;
1074  MSG eMsg;
1075  DWORD dwQEvent;
1076  if (MsqPeekMessage( pti,
1077  TRUE,
1078  Window,
1079  0,
1080  0,
1081  QS_EVENT,
1082  &eExtraInfo,
1083  &dwQEvent,
1084  &eMsg ))
1085  {
1086  handle_internal_events( pti, Window, dwQEvent, eExtraInfo, &eMsg);
1087  continue;
1088  }
1089  }
1090 
1091  /* Check for sent messages again. */
1092  while ( co_MsqDispatchOneSentMessage(pti) )
1093  {
1094  if (HIWORD(RemoveMsg) && !bGMSG) Hit = TRUE;
1095  }
1096  if (Hit) return FALSE;
1097 
1098  /* Check for paint messages. */
1099  if ((ProcessMask & QS_PAINT) &&
1100  pti->cPaintsReady &&
1101  IntGetPaintMessage( Window,
1102  MsgFilterMin,
1103  MsgFilterMax,
1104  pti,
1105  Msg,
1106  RemoveMessages))
1107  {
1108  goto GotMessage;
1109  }
1110 
1111  /* This is correct, check for the current threads timers waiting to be
1112  posted to this threads message queue. If any we loop again.
1113  */
1114  if ((ProcessMask & QS_TIMER) &&
1115  PostTimerMessages(Window))
1116  {
1117  continue;
1118  }
1119 
1120  return FALSE;
1121  }
1122  while (TRUE);
1123 
1124 GotMessage:
1125  /* Update the last message-queue access time */
1126  pti->pcti->timeLastRead = EngGetTickCount32();
1127  return TRUE;
1128 }
1129 
1130 BOOL FASTCALL
1131 co_IntWaitMessage( PWND Window,
1132  UINT MsgFilterMin,
1133  UINT MsgFilterMax )
1134 {
1135  PTHREADINFO pti;
1136  NTSTATUS Status = STATUS_SUCCESS;
1137  MSG Msg;
1138  LONG_PTR ExtraInfo = 0;
1139 
1140  pti = PsGetCurrentThreadWin32Thread();
1141 
1142  do
1143  {
1144  if ( co_IntPeekMessage( &Msg, // Dont reenter!
1145  Window,
1146  MsgFilterMin,
1147  MsgFilterMax,
1148  MAKELONG( PM_NOREMOVE, GetWakeMask( MsgFilterMin, MsgFilterMax)),
1149  &ExtraInfo,
1150  TRUE ) ) // act like GetMessage.
1151  {
1152  return TRUE;
1153  }
1154 
1155  /* Nothing found. Wait for new messages. */
1156  Status = co_MsqWaitForNewMessages( pti,
1157  Window,
1158  MsgFilterMin,
1159  MsgFilterMax);
1160  if (!NT_SUCCESS(Status))
1161  {
1162  SetLastNtError(Status);
1163  ERR("Exit co_IntWaitMessage on error!\n");
1164  return FALSE;
1165  }
1166  if (Status == STATUS_USER_APC || Status == STATUS_TIMEOUT)
1167  {
1168  return FALSE;
1169  }
1170  }
1171  while ( TRUE );
1172 
1173  return FALSE;
1174 }
1175 
1176 BOOL APIENTRY
1177 co_IntGetPeekMessage( PMSG pMsg,
1178  HWND hWnd,
1179  UINT MsgFilterMin,
1180  UINT MsgFilterMax,
1181  UINT RemoveMsg,
1182  BOOL bGMSG )
1183 {
1184  PWND Window;
1185  PTHREADINFO pti;
1186  BOOL Present = FALSE;
1187  NTSTATUS Status;
1188  LONG_PTR ExtraInfo = 0;
1189 
1190  if ( hWnd == HWND_TOPMOST || hWnd == HWND_BROADCAST )
1191  hWnd = HWND_BOTTOM;
1192 
1193  /* Validate input */
1194  if (hWnd && hWnd != HWND_BOTTOM)
1195  {
1196  if (!(Window = UserGetWindowObject(hWnd)))
1197  {
1198  if (bGMSG)
1199  return -1;
1200  else
1201  return FALSE;
1202  }
1203  }
1204  else
1205  {
1206  Window = (PWND)hWnd;
1207  }
1208 
1209  if (MsgFilterMax < MsgFilterMin)
1210  {
1211  MsgFilterMin = 0;
1212  MsgFilterMax = 0;
1213  }
1214 
1215  if (bGMSG)
1216  {
1217  RemoveMsg |= ((GetWakeMask( MsgFilterMin, MsgFilterMax ))<< 16);
1218  }
1219 
1220  pti = PsGetCurrentThreadWin32Thread();
1221  pti->pClientInfo->cSpins++; // Bump up the spin count.
1222 
1223  do
1224  {
1225  Present = co_IntPeekMessage( pMsg,
1226  Window,
1227  MsgFilterMin,
1228  MsgFilterMax,
1229  RemoveMsg,
1230  &ExtraInfo,
1231  bGMSG );
1232  if (Present)
1233  {
1234  if ( pMsg->message != WM_DEVICECHANGE || (pMsg->wParam & 0x8000) )
1235  {
1236  /* GetMessage or PostMessage must never get messages that contain pointers */
1237  ASSERT(FindMsgMemory(pMsg->message) == NULL);
1238  }
1239 
1240  if ( pMsg->message >= WM_DDE_FIRST && pMsg->message <= WM_DDE_LAST )
1241  {
1242  if (!IntDdeGetMessageHook(pMsg, ExtraInfo))
1243  {
1244  TRACE("DDE Get return ERROR\n");
1245  continue;
1246  }
1247  }
1248 
1249  if (pMsg->message != WM_PAINT && pMsg->message != WM_QUIT)
1250  {
1251  if (!RtlEqualMemory(&pti->ptLast, &pMsg->pt, sizeof(POINT)))
1252  {
1253  pti->TIF_flags |= TIF_MSGPOSCHANGED;
1254  }
1255  pti->timeLast = pMsg->time;
1256  pti->ptLast = pMsg->pt;
1257  }
1258 
1259  // The WH_GETMESSAGE hook enables an application to monitor messages about to
1260  // be returned by the GetMessage or PeekMessage function.
1261 
1262  co_HOOK_CallHooks( WH_GETMESSAGE, HC_ACTION, RemoveMsg & PM_REMOVE, (LPARAM)pMsg);
1263 
1264  if ( bGMSG || pMsg->message == WM_PAINT) break;
1265  }
1266 
1267  if ( bGMSG )
1268  {
1269  Status = co_MsqWaitForNewMessages( pti,
1270  Window,
1271  MsgFilterMin,
1272  MsgFilterMax);
1273  if ( !NT_SUCCESS(Status) ||
1274  Status == STATUS_USER_APC ||
1275  Status == STATUS_TIMEOUT )
1276  {
1277  Present = -1;
1278  break;
1279  }
1280  }
1281  else
1282  {
1283  if (!(RemoveMsg & PM_NOYIELD))
1284  {
1285  IdlePing();
1286  // Yield this thread!
1287  UserLeave();
1288  ZwYieldExecution();
1289  UserEnterExclusive();
1290  // Fall through to exit.
1291  IdlePong();
1292  }
1293  break;
1294  }
1295  }
1296  while( bGMSG && !Present );
1297 
1298  // Been spinning, time to swap vinyl...
1299  if (pti->pClientInfo->cSpins >= 100)
1300  {
1301  // Clear the spin cycle to fix the mix.
1302  pti->pClientInfo->cSpins = 0;
1303  //if (!(pti->TIF_flags & TIF_SPINNING)) // FIXME: Need to swap vinyl...
1304  }
1305  return Present;
1306 }
1307 
1308 BOOL FASTCALL
1309 UserPostThreadMessage( PTHREADINFO pti,
1310  UINT Msg,
1311  WPARAM wParam,
1312  LPARAM lParam )
1313 {
1314  MSG Message;
1315 
1316  if (is_pointer_message(Msg, wParam))
1317  {
1318  EngSetLastError(ERROR_MESSAGE_SYNC_ONLY );
1319  return FALSE;
1320  }
1321  Message.hwnd = NULL;
1322  Message.message = Msg;
1323  Message.wParam = wParam;
1324  Message.lParam = lParam;
1325  Message.pt = gpsi->ptCursor;
1326  Message.time = EngGetTickCount32();
1327  MsqPostMessage(pti, &Message, FALSE, QS_POSTMESSAGE, 0, 0);
1328  return TRUE;
1329 }
1330 
1331 PTHREADINFO FASTCALL
1332 IntSendTo(PWND Window, PTHREADINFO ptiCur, UINT Msg)
1333 {
1334  if ( ptiCur )
1335  {
1336  if (!Window ||
1337  Window->head.pti == ptiCur )
1338  {
1339  return NULL;
1340  }
1341  }
1342  return Window ? Window->head.pti : NULL;
1343 }
1344 
1345 BOOL FASTCALL
1346 UserPostMessage( HWND Wnd,
1347  UINT Msg,
1348  WPARAM wParam,
1349  LPARAM lParam )
1350 {
1351  PTHREADINFO pti;
1352  MSG Message;
1353  LONG_PTR ExtraInfo = 0;
1354 
1355  Message.hwnd = Wnd;
1356  Message.message = Msg;
1357  Message.wParam = wParam;
1358  Message.lParam = lParam;
1359  Message.pt = gpsi->ptCursor;
1360  Message.time = EngGetTickCount32();
1361 
1362  if (is_pointer_message(Message.message, Message.wParam))
1363  {
1364  EngSetLastError(ERROR_MESSAGE_SYNC_ONLY );
1365  return FALSE;
1366  }
1367 
1368  if (Wnd == HWND_BROADCAST || Wnd == HWND_TOPMOST)
1369  {
1370  HWND *List;
1371  PWND DesktopWindow;
1372  ULONG i;
1373 
1374  if (!is_message_broadcastable(Msg)) return TRUE;
1375 
1376  DesktopWindow = UserGetDesktopWindow();
1377  List = IntWinListChildren(DesktopWindow);
1378 
1379  if (List != NULL)
1380  {
1381  UserPostMessage(DesktopWindow->head.h, Msg, wParam, lParam);
1382  for (i = 0; List[i]; i++)
1383  {
1384  PWND pwnd = UserGetWindowObject(List[i]);
1385  if (!pwnd) continue;
1386 
1387  if ( pwnd->fnid == FNID_MENU || // Also need pwnd->pcls->atomClassName == gaOleMainThreadWndClass
1388  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
1389  continue;
1390 
1391  UserPostMessage(List[i], Msg, wParam, lParam);
1392  }
1393  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
1394  }
1395  }
1396  else
1397  {
1398  PWND Window;
1399 
1400  if (!Wnd)
1401  {
1402  return UserPostThreadMessage( gptiCurrent,
1403  Msg,
1404  wParam,
1405  lParam);
1406  }
1407 
1408  Window = UserGetWindowObject(Wnd);
1409  if ( !Window )
1410  {
1411  ERR("UserPostMessage: Invalid handle 0x%p Msg 0x%x!\n", Wnd, Msg);
1412  return FALSE;
1413  }
1414 
1415  pti = Window->head.pti;
1416 
1417  if ( pti->TIF_flags & TIF_INCLEANUP )
1418  {
1419  ERR("Attempted to post message to window %p when the thread is in cleanup!\n", Wnd);
1420  return FALSE;
1421  }
1422 
1423  if ( Window->state & WNDS_DESTROYED )
1424  {
1425  ERR("Attempted to post message to window %p that is being destroyed!\n", Wnd);
1426  EngSetLastError(ERROR_INVALID_WINDOW_HANDLE);
1427  return FALSE;
1428  }
1429 
1430  if ( Msg >= WM_DDE_FIRST && Msg <= WM_DDE_LAST )
1431  {
1432  if (!IntDdePostMessageHook(Window, Msg, wParam, &lParam, &ExtraInfo))
1433  {
1434  TRACE("Posting Exit DDE 0x%x\n",Msg);
1435  return FALSE;
1436  }
1437  Message.lParam = lParam;
1438  }
1439 
1440  MsqPostMessage(pti, &Message, FALSE, QS_POSTMESSAGE, 0, ExtraInfo);
1441  }
1442  return TRUE;
1443 }
1444 
1445 LRESULT FASTCALL
1446 co_IntSendMessage( HWND hWnd,
1447  UINT Msg,
1448  WPARAM wParam,
1449  LPARAM lParam )
1450 {
1451  ULONG_PTR Result = 0;
1452 
1453  if (co_IntSendMessageTimeout(hWnd, Msg, wParam, lParam, SMTO_NORMAL, 0, &Result))
1454  {
1455  return (LRESULT)Result;
1456  }
1457  return 0;
1458 }
1459 
1460 static LRESULT FASTCALL
1461 co_IntSendMessageTimeoutSingle( HWND hWnd,
1462  UINT Msg,
1463  WPARAM wParam,
1464  LPARAM lParam,
1465  UINT uFlags,
1466  UINT uTimeout,
1467  ULONG_PTR *uResult )
1468 {
1469  NTSTATUS Status = STATUS_SUCCESS;
1470  PWND Window = NULL;
1471  PMSGMEMORY MsgMemoryEntry;
1472  INT lParamBufferSize;
1473  LPARAM lParamPacked;
1474  PTHREADINFO Win32Thread, ptiSendTo = NULL;
1475  ULONG_PTR Result = 0;
1476  DECLARE_RETURN(LRESULT);
1477  USER_REFERENCE_ENTRY Ref;
1478  BOOL DoCallBack = TRUE;
1479 
1480  if (!(Window = UserGetWindowObject(hWnd)))
1481  {
1482  TRACE("SendMessageTimeoutSingle: Invalid handle 0x%p!\n",hWnd);
1483  RETURN( FALSE);
1484  }
1485 
1486  UserRefObjectCo(Window, &Ref);
1487 
1488  Win32Thread = PsGetCurrentThreadWin32Thread();
1489 
1490  ptiSendTo = IntSendTo(Window, Win32Thread, Msg);
1491 
1492  if ( Msg >= WM_DDE_FIRST && Msg <= WM_DDE_LAST )
1493  {
1494  if (!IntDdeSendMessageHook(Window, Msg, wParam, lParam))
1495  {
1496  ERR("Sending Exit DDE 0x%x\n",Msg);
1497  RETURN( FALSE);
1498  }
1499  }
1500 
1501  if ( !ptiSendTo )
1502  {
1503  if (Win32Thread->TIF_flags & TIF_INCLEANUP)
1504  {
1505  /* Never send messages to exiting threads */
1506  RETURN( FALSE);
1507  }
1508 
1509  if (Msg & 0x80000000)
1510  {
1511  TRACE("SMTS: Internal Message!\n");
1512  Result = (ULONG_PTR)handle_internal_message( Window, Msg, wParam, lParam );
1513  if (uResult) *uResult = Result;
1514  RETURN( TRUE);
1515  }
1516 
1517  // Only happens when calling the client!
1518  IntCallWndProc( Window, hWnd, Msg, wParam, lParam);
1519 
1520  if ( Window->state & WNDS_SERVERSIDEWINDOWPROC )
1521  {
1522  TRACE("SMT: Server Side Window Procedure\n");
1523  // Handle it here. Safeguard against excessive recursions.
1524  if (IoGetRemainingStackSize() < PAGE_SIZE)
1525  {
1526  ERR("Server Callback Exceeded Stack!\n");
1527  RETURN( FALSE);
1528  }
1529  /* Return after server side call, IntCallWndProcRet will not be called. */
1530  switch(Window->fnid)
1531  {
1532  case FNID_DESKTOP:
1533  DoCallBack = !DesktopWindowProc(Window, Msg, wParam, lParam,(LRESULT*)&Result);
1534  break;
1535  case FNID_MESSAGEWND:
1536  DoCallBack = !UserMessageWindowProc(Window, Msg, wParam, lParam,(LRESULT*)&Result);
1537  break;
1538  case FNID_MENU:
1539  DoCallBack = !PopupMenuWndProc( Window, Msg, wParam, lParam,(LRESULT*)&Result);
1540  break;
1541  }
1542  if (!DoCallBack)
1543  {
1544  if (uResult) *uResult = Result;
1545  RETURN( TRUE);
1546  }
1547  }
1548  /* See if this message type is present in the table */
1549  MsgMemoryEntry = FindMsgMemory(Msg);
1550  if (NULL == MsgMemoryEntry)
1551  {
1552  lParamBufferSize = -1;
1553  }
1554  else
1555  {
1556  lParamBufferSize = MsgMemorySize(MsgMemoryEntry, wParam, lParam);
1557  // If zero, do not allow callback on client side to allocate a buffer!!!!! See CORE-7695.
1558  if (!lParamBufferSize) lParamBufferSize = -1;
1559  }
1560 
1561  if (! NT_SUCCESS(PackParam(&lParamPacked, Msg, wParam, lParam, FALSE)))
1562  {
1563  ERR("Failed to pack message parameters\n");
1564  RETURN( FALSE);
1565  }
1566 
1567  Result = (ULONG_PTR)co_IntCallWindowProc( Window->lpfnWndProc,
1568  !Window->Unicode,
1569  hWnd,
1570  Msg,
1571  wParam,
1572  lParamPacked,
1573  lParamBufferSize );
1574  if (uResult)
1575  {
1576  *uResult = Result;
1577  }
1578 
1579  if (! NT_SUCCESS(UnpackParam(lParamPacked, Msg, wParam, lParam, FALSE)))
1580  {
1581  ERR("Failed to unpack message parameters\n");
1582  RETURN( TRUE);
1583  }
1584 
1585  // Only happens when calling the client!
1586  IntCallWndProcRet( Window, hWnd, Msg, wParam, lParam, (LRESULT *)uResult);
1587 
1588  RETURN( TRUE);
1589  }
1590 
1591  if (Window->state & WNDS_DESTROYED)
1592  {
1593  /* FIXME: Last error? */
1594  ERR("Attempted to send message to window %p that is being destroyed!\n", hWnd);
1595  RETURN( FALSE);
1596  }
1597 
1598  if ((uFlags & SMTO_ABORTIFHUNG) && MsqIsHung(ptiSendTo, 4 * MSQ_HUNG))
1599  {
1600  // FIXME: Set window hung and add to a list.
1601  /* FIXME: Set a LastError? */
1602  ERR("Window %p (%p) (pti %p) is hung!\n", hWnd, Window, ptiSendTo);
1603  RETURN( FALSE);
1604  }
1605 
1606  do
1607  {
1608  Status = co_MsqSendMessage( ptiSendTo,
1609  hWnd,
1610  Msg,
1611  wParam,
1612  lParam,
1613  uTimeout,
1614  (uFlags & SMTO_BLOCK),
1615  MSQ_NORMAL,
1616  uResult );
1617  }
1618  while ((Status == STATUS_TIMEOUT) &&
1619  (uFlags & SMTO_NOTIMEOUTIFNOTHUNG) &&
1620  !MsqIsHung(ptiSendTo, MSQ_HUNG)); // FIXME: Set window hung and add to a list.
1621 
1622  if (Status == STATUS_TIMEOUT)
1623  {
1624  if (0 && MsqIsHung(ptiSendTo, MSQ_HUNG))
1625  {
1626  TRACE("Let's go Ghost!\n");
1627  IntMakeHungWindowGhosted(hWnd);
1628  }
1629 /*
1630  * MSDN says:
1631  * Microsoft Windows 2000: If GetLastError returns zero, then the function
1632  * timed out.
1633  * XP+ : If the function fails or times out, the return value is zero.
1634  * To get extended error information, call GetLastError. If GetLastError
1635  * returns ERROR_TIMEOUT, then the function timed out.
1636  */
1637  EngSetLastError(ERROR_TIMEOUT);
1638  RETURN( FALSE);
1639  }
1640  else if (!NT_SUCCESS(Status))
1641  {
1642  SetLastNtError(Status);
1643  RETURN( FALSE);
1644  }
1645 
1646  RETURN( TRUE);
1647 
1648 CLEANUP:
1649  if (Window) UserDerefObjectCo(Window);
1650  END_CLEANUP;
1651 }
1652 
1653 LRESULT FASTCALL
1654 co_IntSendMessageTimeout( HWND hWnd,
1655  UINT Msg,
1656  WPARAM wParam,
1657  LPARAM lParam,
1658  UINT uFlags,
1659  UINT uTimeout,
1660  ULONG_PTR *uResult )
1661 {
1662  PWND DesktopWindow;
1663  HWND *Children;
1664  HWND *Child;
1665 
1666  if (hWnd != HWND_BROADCAST && hWnd != HWND_TOPMOST)
1667  {
1668  return co_IntSendMessageTimeoutSingle(hWnd, Msg, wParam, lParam, uFlags, uTimeout, uResult);
1669  }
1670 
1671  if (!is_message_broadcastable(Msg)) return TRUE;
1672 
1673  DesktopWindow = UserGetDesktopWindow();
1674  if (NULL == DesktopWindow)
1675  {
1676  EngSetLastError(ERROR_INTERNAL_ERROR);
1677  return 0;
1678  }
1679 
1680  if (hWnd != HWND_TOPMOST)
1681  {
1682  /* Send message to the desktop window too! */
1683  co_IntSendMessageTimeoutSingle(DesktopWindow->head.h, Msg, wParam, lParam, uFlags, uTimeout, uResult);
1684  }
1685 
1686  Children = IntWinListChildren(DesktopWindow);
1687  if (NULL == Children)
1688  {
1689  return 0;
1690  }
1691 
1692  for (Child = Children; NULL != *Child; Child++)
1693  {
1694  PWND pwnd = UserGetWindowObject(*Child);
1695  if (!pwnd) continue;
1696 
1697  if ( pwnd->fnid == FNID_MENU ||
1698  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
1699  continue;
1700 
1701  co_IntSendMessageTimeoutSingle(*Child, Msg, wParam, lParam, uFlags, uTimeout, uResult);
1702  }
1703 
1704  ExFreePoolWithTag(Children, USERTAG_WINDOWLIST);
1705 
1706  return (LRESULT) TRUE;
1707 }
1708 
1709 LRESULT FASTCALL
1710 co_IntSendMessageNoWait(HWND hWnd,
1711  UINT Msg,
1712  WPARAM wParam,
1713  LPARAM lParam)
1714 {
1715  ULONG_PTR Result = 0;
1716  return co_IntSendMessageWithCallBack( hWnd,
1717  Msg,
1718  wParam,
1719  lParam,
1720  NULL,
1721  0,
1722  &Result);
1723 }
1724 /* MSDN:
1725  If you send a message in the range below WM_USER to the asynchronous message
1726  functions (PostMessage, SendNotifyMessage, and SendMessageCallback), its
1727  message parameters cannot include pointers. Otherwise, the operation will fail.
1728  The functions will return before the receiving thread has had a chance to
1729  process the message and the sender will free the memory before it is used.
1730 */
1731 LRESULT FASTCALL
1732 co_IntSendMessageWithCallBack( HWND hWnd,
1733  UINT Msg,
1734  WPARAM wParam,
1735  LPARAM lParam,
1736  SENDASYNCPROC CompletionCallback,
1737  ULONG_PTR CompletionCallbackContext,
1738  ULONG_PTR *uResult)
1739 {
1740  ULONG_PTR Result;
1741  PWND Window = NULL;
1742  PMSGMEMORY MsgMemoryEntry;
1743  INT lParamBufferSize;
1744  LPARAM lParamPacked;
1745  PTHREADINFO Win32Thread, ptiSendTo = NULL;
1746  DECLARE_RETURN(LRESULT);
1747  USER_REFERENCE_ENTRY Ref;
1748  PUSER_SENT_MESSAGE Message;
1749  BOOL DoCallBack = TRUE;
1750 
1751  if (!(Window = UserGetWindowObject(hWnd)))
1752  {
1753  TRACE("SendMessageWithCallBack: Invalid handle 0x%p!\n",hWnd);
1754  RETURN(FALSE);
1755  }
1756 
1757  UserRefObjectCo(Window, &Ref);
1758 
1759  if (Window->state & WNDS_DESTROYED)
1760  {
1761  /* FIXME: last error? */
1762  ERR("Attempted to send message to window %p that is being destroyed!\n", hWnd);
1763  RETURN(FALSE);
1764  }
1765 
1766  Win32Thread = PsGetCurrentThreadWin32Thread();
1767 
1768  if (Win32Thread == NULL ||
1769  Win32Thread->TIF_flags & TIF_INCLEANUP)
1770  {
1771  RETURN(FALSE);
1772  }
1773 
1774  ptiSendTo = IntSendTo(Window, Win32Thread, Msg);
1775 
1776  if (Msg & 0x80000000 &&
1777  !ptiSendTo)
1778  {
1779  if (Win32Thread->TIF_flags & TIF_INCLEANUP) RETURN( FALSE);
1780 
1781  TRACE("SMWCB: Internal Message!\n");
1782  Result = (ULONG_PTR)handle_internal_message( Window, Msg, wParam, lParam );
1783  if (uResult) *uResult = Result;
1784  RETURN( TRUE);
1785  }
1786 
1787  /* See if this message type is present in the table */
1788  MsgMemoryEntry = FindMsgMemory(Msg);
1789  if (NULL == MsgMemoryEntry)
1790  {
1791  lParamBufferSize = -1;
1792  }
1793  else
1794  {
1795  lParamBufferSize = MsgMemorySize(MsgMemoryEntry, wParam, lParam);
1796  if (!lParamBufferSize) lParamBufferSize = -1;
1797  }
1798 
1799  if (! NT_SUCCESS(PackParam(&lParamPacked, Msg, wParam, lParam, !!ptiSendTo)))
1800  {
1801  ERR("Failed to pack message parameters\n");
1802  RETURN( FALSE);
1803  }
1804 
1805  /* If it can be sent now, then send it. */
1806  if ( !ptiSendTo )
1807  {
1808  if (Win32Thread->TIF_flags & TIF_INCLEANUP)
1809  {
1810  UnpackParam(lParamPacked, Msg, wParam, lParam, FALSE);
1811  /* Never send messages to exiting threads */
1812  RETURN(FALSE);
1813  }
1814 
1815  IntCallWndProc( Window, hWnd, Msg, wParam, lParam);
1816 
1817  if ( Window->state & WNDS_SERVERSIDEWINDOWPROC )
1818  {
1819  TRACE("SMWCB: Server Side Window Procedure\n");
1820  switch(Window->fnid)
1821  {
1822  case FNID_DESKTOP:
1823  DoCallBack = !DesktopWindowProc(Window, Msg, wParam, lParamPacked, (LRESULT*)&Result);
1824  break;
1825  case FNID_MESSAGEWND:
1826  DoCallBack = !UserMessageWindowProc(Window, Msg, wParam, lParam,(LRESULT*)&Result);
1827  break;
1828  case FNID_MENU:
1829  DoCallBack = !PopupMenuWndProc( Window, Msg, wParam, lParam,(LRESULT*)&Result);
1830  break;
1831  }
1832  }
1833 
1834  if (DoCallBack)
1835  Result = (ULONG_PTR)co_IntCallWindowProc( Window->lpfnWndProc,
1836  !Window->Unicode,
1837  hWnd,
1838  Msg,
1839  wParam,
1840  lParamPacked,
1841  lParamBufferSize );
1842  if(uResult)
1843  {
1844  *uResult = Result;
1845  }
1846 
1847  IntCallWndProcRet( Window, hWnd, Msg, wParam, lParam, (LRESULT *)uResult);
1848 
1849  if (CompletionCallback)
1850  {
1851  co_IntCallSentMessageCallback(CompletionCallback,
1852  hWnd,
1853  Msg,
1854  CompletionCallbackContext,
1855  Result);
1856  }
1857  }
1858 
1859  if ( !ptiSendTo)
1860  {
1861  if (! NT_SUCCESS(UnpackParam(lParamPacked, Msg, wParam, lParam, FALSE)))
1862  {
1863  ERR("Failed to unpack message parameters\n");
1864  }
1865  RETURN(TRUE);
1866  }
1867 
1868  if(!(Message = AllocateUserMessage(FALSE)))
1869  {
1870  ERR("MsqSendMessage(): Not enough memory to allocate a message\n");
1871  RETURN(FALSE);
1872  }
1873 
1874  Message->Msg.hwnd = hWnd;
1875  Message->Msg.message = Msg;
1876  Message->Msg.wParam = wParam;
1877  Message->Msg.lParam = lParamPacked;
1878  Message->pkCompletionEvent = NULL; // No event needed.
1879  Message->lResult = 0;
1880  Message->QS_Flags = 0;
1881  Message->ptiReceiver = ptiSendTo;
1882  Message->ptiSender = NULL; // mjmartin, you are right! This is null.
1883  Message->ptiCallBackSender = Win32Thread;
1884  Message->CompletionCallback = CompletionCallback;
1885  Message->CompletionCallbackContext = CompletionCallbackContext;
1886  Message->HookMessage = MSQ_NORMAL;
1887  Message->HasPackedLParam = (lParamBufferSize > 0);
1888  Message->QS_Flags = QS_SENDMESSAGE;
1889  Message->flags = SMF_RECEIVERFREE;
1890 
1891  if (Msg & 0x80000000) // Higher priority event message!
1892  InsertHeadList(&ptiSendTo->SentMessagesListHead, &Message->ListEntry);
1893  else
1894  InsertTailList(&ptiSendTo->SentMessagesListHead, &Message->ListEntry);
1895  MsqWakeQueue(ptiSendTo, QS_SENDMESSAGE, TRUE);
1896 
1897  RETURN(TRUE);
1898 
1899 CLEANUP:
1900  if (Window) UserDerefObjectCo(Window);
1901  END_CLEANUP;
1902 }
1903 
1904 #if 0
1905 /*
1906  This HACK function posts a message if the destination's message queue belongs to
1907  another thread, otherwise it sends the message. It does not support broadcast
1908  messages!
1909 */
1910 LRESULT FASTCALL
1911 co_IntPostOrSendMessage( HWND hWnd,
1912  UINT Msg,
1913  WPARAM wParam,
1914  LPARAM lParam )
1915 {
1916  ULONG_PTR Result;
1917  PTHREADINFO pti;
1918  PWND Window;
1919 
1920  if ( hWnd == HWND_BROADCAST )
1921  {
1922  return 0;
1923  }
1924 
1925  if(!(Window = UserGetWindowObject(hWnd)))
1926  {
1927  TRACE("PostOrSendMessage: Invalid handle 0x%p!\n",hWnd);
1928  return 0;
1929  }
1930 
1931  pti = PsGetCurrentThreadWin32Thread();
1932 
1933  if ( IntSendTo(Window, pti, Msg) &&
1934  FindMsgMemory(Msg) == 0 )
1935  {
1936  Result = UserPostMessage(hWnd, Msg, wParam, lParam);
1937  }
1938  else
1939  {
1940  if ( !co_IntSendMessageTimeoutSingle(hWnd, Msg, wParam, lParam, SMTO_NORMAL, 0, &Result) )
1941  {
1942  Result = 0;
1943  }
1944  }
1945 
1946  return (LRESULT)Result;
1947 }
1948 #endif
1949 
1950 static LRESULT FASTCALL
1951 co_IntDoSendMessage( HWND hWnd,
1952  UINT Msg,
1953  WPARAM wParam,
1954  LPARAM lParam,
1955  PDOSENDMESSAGE dsm)
1956 {
1957  LRESULT Result = TRUE;
1958  NTSTATUS Status;
1959  PWND Window = NULL;
1960  MSG UserModeMsg, KernelModeMsg;
1961  PMSGMEMORY MsgMemoryEntry;
1962  PTHREADINFO ptiSendTo;
1963 
1964  if (hWnd != HWND_BROADCAST && hWnd != HWND_TOPMOST)
1965  {
1966  Window = UserGetWindowObject(hWnd);
1967  if ( !Window )
1968  {
1969  return 0;
1970  }
1971  }
1972 
1973  /* Check for an exiting window. */
1974  if (Window && Window->state & WNDS_DESTROYED)
1975  {
1976  ERR("co_IntDoSendMessage Window Exiting!\n");
1977  }
1978 
1979  /* See if the current thread can handle this message */
1980  ptiSendTo = IntSendTo(Window, gptiCurrent, Msg);
1981 
1982  // If broadcasting or sending to another thread, save the users data.
1983  if (!Window || ptiSendTo )
1984  {
1985  UserModeMsg.hwnd = hWnd;
1986  UserModeMsg.message = Msg;
1987  UserModeMsg.wParam = wParam;
1988  UserModeMsg.lParam = lParam;
1989  MsgMemoryEntry = FindMsgMemory(UserModeMsg.message);
1990  Status = CopyMsgToKernelMem(&KernelModeMsg, &UserModeMsg, MsgMemoryEntry);
1991  if (!NT_SUCCESS(Status))
1992  {
1993  EngSetLastError(ERROR_INVALID_PARAMETER);
1994  return (dsm ? 0 : -1);
1995  }
1996  }
1997  else
1998  {
1999  KernelModeMsg.hwnd = hWnd;
2000  KernelModeMsg.message = Msg;
2001  KernelModeMsg.wParam = wParam;
2002  KernelModeMsg.lParam = lParam;
2003  }
2004 
2005  if (!dsm)
2006  {
2007  Result = co_IntSendMessage( KernelModeMsg.hwnd,
2008  KernelModeMsg.message,
2009  KernelModeMsg.wParam,
2010  KernelModeMsg.lParam );
2011  }
2012  else
2013  {
2014  Result = co_IntSendMessageTimeout( KernelModeMsg.hwnd,
2015  KernelModeMsg.message,
2016  KernelModeMsg.wParam,
2017  KernelModeMsg.lParam,
2018  dsm->uFlags,
2019  dsm->uTimeout,
2020  &dsm->Result );
2021  }
2022 
2023  if (!Window || ptiSendTo )
2024  {
2025  Status = CopyMsgToUserMem(&UserModeMsg, &KernelModeMsg);
2026  if (!NT_SUCCESS(Status))
2027  {
2028  EngSetLastError(ERROR_INVALID_PARAMETER);
2029  return(dsm ? 0 : -1);
2030  }
2031  }
2032 
2033  return (LRESULT)Result;
2034 }
2035 
2036 BOOL FASTCALL
2037 UserSendNotifyMessage( HWND hWnd,
2038  UINT Msg,
2039  WPARAM wParam,
2040  LPARAM lParam )
2041 {
2042  BOOL Ret = TRUE;
2043 
2044  if (is_pointer_message(Msg, wParam))
2045  {
2046  EngSetLastError(ERROR_MESSAGE_SYNC_ONLY );
2047  return FALSE;
2048  }
2049 
2050  // Basicly the same as IntPostOrSendMessage
2051  if (hWnd == HWND_BROADCAST) // Handle Broadcast
2052  {
2053  HWND *List;
2054  PWND DesktopWindow;
2055  ULONG i;
2056 
2057  DesktopWindow = UserGetDesktopWindow();
2058  List = IntWinListChildren(DesktopWindow);
2059 
2060  if (List != NULL)
2061  {
2062  UserSendNotifyMessage(DesktopWindow->head.h, Msg, wParam, lParam);
2063  for (i = 0; List[i]; i++)
2064  {
2065  PWND pwnd = UserGetWindowObject(List[i]);
2066  if (!pwnd) continue;
2067 
2068  if ( pwnd->fnid == FNID_MENU ||
2069  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2070  continue;
2071 
2072  Ret = UserSendNotifyMessage(List[i], Msg, wParam, lParam);
2073  }
2074  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2075  }
2076  }
2077  else
2078  {
2079  Ret = co_IntSendMessageNoWait( hWnd, Msg, wParam, lParam);
2080  }
2081  return Ret;
2082 }
2083 
2084 
2085 DWORD APIENTRY
2086 IntGetQueueStatus(DWORD Changes)
2087 {
2088  PTHREADINFO pti;
2089  DWORD Result;
2090 
2091  pti = PsGetCurrentThreadWin32Thread();
2092 // wine:
2093  Changes &= (QS_ALLINPUT|QS_ALLPOSTMESSAGE|QS_SMRESULT);
2094 
2095  /* High word, types of messages currently in the queue.
2096  Low word, types of messages that have been added to the queue and that
2097  are still in the queue
2098  */
2099  Result = MAKELONG(pti->pcti->fsChangeBits & Changes, pti->pcti->fsWakeBits & Changes);
2100 
2101  pti->pcti->fsChangeBits &= ~Changes;
2102 
2103  return Result;
2104 }
2105 
2106 BOOL APIENTRY
2107 IntInitMessagePumpHook(VOID)
2108 {
2109  PTHREADINFO pti = PsGetCurrentThreadWin32Thread();
2110 
2111  if (pti->pcti)
2112  {
2113  pti->pcti->dwcPumpHook++;
2114  return TRUE;
2115  }
2116  return FALSE;
2117 }
2118 
2119 BOOL APIENTRY
2120 IntUninitMessagePumpHook(VOID)
2121 {
2122  PTHREADINFO pti = PsGetCurrentThreadWin32Thread();
2123 
2124  if (pti->pcti)
2125  {
2126  if (pti->pcti->dwcPumpHook <= 0)
2127  {
2128  return FALSE;
2129  }
2130  pti->pcti->dwcPumpHook--;
2131  return TRUE;
2132  }
2133  return FALSE;
2134 }
2135 
2136 BOOL FASTCALL
2137 IntCallMsgFilter( LPMSG lpmsg, INT code)
2138 {
2139  BOOL Ret = FALSE;
2140 
2141  if ( co_HOOK_CallHooks( WH_SYSMSGFILTER, code, 0, (LPARAM)lpmsg))
2142  {
2143  Ret = TRUE;
2144  }
2145  else
2146  {
2147  Ret = co_HOOK_CallHooks( WH_MSGFILTER, code, 0, (LPARAM)lpmsg);
2148  }
2149  return Ret;
2150 }
2151 
2154 BOOL
2155 APIENTRY
2156 NtUserDragDetect(
2157  HWND hWnd,
2158  POINT pt) // Just like the User call.
2159 {
2160  MSG msg;
2161  RECT rect;
2162  ULONG wDragWidth, wDragHeight;
2163  DECLARE_RETURN(BOOL);
2164 
2165  TRACE("Enter NtUserDragDetect(%p)\n", hWnd);
2166  UserEnterExclusive();
2167 
2168  wDragWidth = UserGetSystemMetrics(SM_CXDRAG);
2169  wDragHeight= UserGetSystemMetrics(SM_CYDRAG);
2170 
2171  rect.left = pt.x - wDragWidth;
2172  rect.right = pt.x + wDragWidth;
2173 
2174  rect.top = pt.y - wDragHeight;
2175  rect.bottom = pt.y + wDragHeight;
2176 
2177  co_UserSetCapture(hWnd);
2178 
2179  for (;;)
2180  {
2181  while (co_IntGetPeekMessage( &msg, 0, WM_MOUSEFIRST, WM_MOUSELAST, PM_REMOVE, FALSE ) ||
2182  co_IntGetPeekMessage( &msg, 0, WM_QUEUESYNC, WM_QUEUESYNC, PM_REMOVE, FALSE ) ||
2183  co_IntGetPeekMessage( &msg, 0, WM_KEYFIRST, WM_KEYLAST, PM_REMOVE, FALSE ) )
2184  {
2185  if ( msg.message == WM_LBUTTONUP )
2186  {
2187  co_UserSetCapture(NULL);
2188  RETURN( FALSE);
2189  }
2190  if ( msg.message == WM_MOUSEMOVE )
2191  {
2192  POINT tmp;
2193  tmp.x = (short)LOWORD(msg.lParam);
2194  tmp.y = (short)HIWORD(msg.lParam);
2195  if( !RECTL_bPointInRect( &rect, tmp.x, tmp.y ) )
2196  {
2197  co_UserSetCapture(NULL);
2198  RETURN( TRUE);
2199  }
2200  }
2201  if ( msg.message == WM_KEYDOWN )
2202  {
2203  if ( msg.wParam == VK_ESCAPE )
2204  {
2205  co_UserSetCapture(NULL);
2206  RETURN( TRUE);
2207  }
2208  }
2209  if ( msg.message == WM_QUEUESYNC )
2210  {
2211  co_HOOK_CallHooks( WH_CBT, HCBT_QS, 0, 0 );
2212  }
2213  }
2214  co_IntWaitMessage(NULL, 0, 0);
2215  }
2216  RETURN( FALSE);
2217 
2218 CLEANUP:
2219  TRACE("Leave NtUserDragDetect, ret=%i\n",_ret_);
2220  UserLeave();
2221  END_CLEANUP;
2222 }
2223 
2224 BOOL APIENTRY
2225 NtUserPostMessage(HWND hWnd,
2226  UINT Msg,
2227  WPARAM wParam,
2228  LPARAM lParam)
2229 {
2230  BOOL ret;
2231 
2232  UserEnterExclusive();
2233 
2234  ret = UserPostMessage(hWnd, Msg, wParam, lParam);
2235 
2236  UserLeave();
2237 
2238  return ret;
2239 }
2240 
2241 BOOL APIENTRY
2242 NtUserPostThreadMessage(DWORD idThread,
2243  UINT Msg,
2244  WPARAM wParam,
2245  LPARAM lParam)
2246 {
2247  BOOL ret = FALSE;
2248  PETHREAD peThread;
2249  PTHREADINFO pThread;
2250  NTSTATUS Status;
2251 
2252  UserEnterExclusive();
2253 
2254  Status = PsLookupThreadByThreadId(UlongToHandle(idThread), &peThread);
2255 
2256  if ( Status == STATUS_SUCCESS )
2257  {
2258  pThread = (PTHREADINFO)peThread->Tcb.Win32Thread;
2259  if( !pThread ||
2260  !pThread->MessageQueue ||
2261  (pThread->TIF_flags & TIF_INCLEANUP))
2262  {
2263  ObDereferenceObject( peThread );
2264  goto exit;
2265  }
2266  ret = UserPostThreadMessage( pThread, Msg, wParam, lParam);
2267  ObDereferenceObject( peThread );
2268  }
2269  else
2270  {
2271  SetLastNtError( Status );
2272  }
2273 exit:
2274  UserLeave();
2275  return ret;
2276 }
2277 
2278 BOOL APIENTRY
2279 NtUserWaitMessage(VOID)
2280 {
2281  BOOL ret;
2282 
2283  UserEnterExclusive();
2284  TRACE("NtUserWaitMessage Enter\n");
2285  ret = co_IntWaitMessage(NULL, 0, 0);
2286  TRACE("NtUserWaitMessage Leave\n");
2287  UserLeave();
2288 
2289  return ret;
2290 }
2291 
2292 BOOL APIENTRY
2293 NtUserGetMessage(PMSG pMsg,
2294  HWND hWnd,
2295  UINT MsgFilterMin,
2296  UINT MsgFilterMax )
2297 {
2298  MSG Msg;
2299  BOOL Ret;
2300 
2301  if ( (MsgFilterMin|MsgFilterMax) & ~WM_MAXIMUM )
2302  {
2303  EngSetLastError(ERROR_INVALID_PARAMETER);
2304  return FALSE;
2305  }
2306 
2307  UserEnterExclusive();
2308 
2309  RtlZeroMemory(&Msg, sizeof(MSG));
2310 
2311  Ret = co_IntGetPeekMessage(&Msg, hWnd, MsgFilterMin, MsgFilterMax, PM_REMOVE, TRUE);
2312 
2313  UserLeave();
2314 
2315  if (Ret)
2316  {
2317  _SEH2_TRY
2318  {
2319  ProbeForWrite(pMsg, sizeof(MSG), 1);
2320  RtlCopyMemory(pMsg, &Msg, sizeof(MSG));
2321  }
2322  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2323  {
2324  SetLastNtError(_SEH2_GetExceptionCode());
2325  Ret = FALSE;
2326  }
2327  _SEH2_END;
2328  }
2329 
2330  if ((INT)Ret != -1)
2331  Ret = Ret ? (WM_QUIT != pMsg->message) : FALSE;
2332 
2333  return Ret;
2334 }
2335 
2336 BOOL APIENTRY
2337 NtUserPeekMessage( PMSG pMsg,
2338  HWND hWnd,
2339  UINT MsgFilterMin,
2340  UINT MsgFilterMax,
2341  UINT RemoveMsg)
2342 {
2343  MSG Msg;
2344  BOOL Ret;
2345 
2346  if ( RemoveMsg & PM_BADMSGFLAGS )
2347  {
2348  EngSetLastError(ERROR_INVALID_FLAGS);
2349  return FALSE;
2350  }
2351 
2352  UserEnterExclusive();
2353 
2354  RtlZeroMemory(&Msg, sizeof(MSG));
2355 
2356  Ret = co_IntGetPeekMessage(&Msg, hWnd, MsgFilterMin, MsgFilterMax, RemoveMsg, FALSE);
2357 
2358  UserLeave();
2359 
2360  if (Ret)
2361  {
2362  _SEH2_TRY
2363  {
2364  ProbeForWrite(pMsg, sizeof(MSG), 1);
2365  RtlCopyMemory(pMsg, &Msg, sizeof(MSG));
2366  }
2367  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2368  {
2369  SetLastNtError(_SEH2_GetExceptionCode());
2370  Ret = FALSE;
2371  }
2372  _SEH2_END;
2373  }
2374 
2375  return Ret;
2376 }
2377 
2378 BOOL APIENTRY
2379 NtUserCallMsgFilter( LPMSG lpmsg, INT code)
2380 {
2381  BOOL Ret = FALSE;
2382  MSG Msg;
2383 
2384  _SEH2_TRY
2385  {
2386  ProbeForRead(lpmsg, sizeof(MSG), 1);
2387  RtlCopyMemory( &Msg, lpmsg, sizeof(MSG));
2388  }
2389  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2390  {
2391  _SEH2_YIELD(return FALSE);
2392  }
2393  _SEH2_END;
2394 
2395  UserEnterExclusive();
2396 
2397  if ( co_HOOK_CallHooks( WH_SYSMSGFILTER, code, 0, (LPARAM)&Msg))
2398  {
2399  Ret = TRUE;
2400  }
2401  else
2402  {
2403  Ret = co_HOOK_CallHooks( WH_MSGFILTER, code, 0, (LPARAM)&Msg);
2404  }
2405 
2406  UserLeave();
2407 
2408  _SEH2_TRY
2409  {
2410  ProbeForWrite(lpmsg, sizeof(MSG), 1);
2411  RtlCopyMemory(lpmsg, &Msg, sizeof(MSG));
2412  }
2413  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2414  {
2415  Ret = FALSE;
2416  }
2417  _SEH2_END;
2418 
2419  return Ret;
2420 }
2421 
2422 LRESULT APIENTRY
2423 NtUserDispatchMessage(PMSG UnsafeMsgInfo)
2424 {
2425  LRESULT Res = 0;
2426  MSG SafeMsg;
2427 
2428  _SEH2_TRY
2429  {
2430  ProbeForRead(UnsafeMsgInfo, sizeof(MSG), 1);
2431  RtlCopyMemory(&SafeMsg, UnsafeMsgInfo, sizeof(MSG));
2432  }
2433  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2434  {
2435  SetLastNtError(_SEH2_GetExceptionCode());
2436  _SEH2_YIELD(return FALSE);
2437  }
2438  _SEH2_END;
2439 
2440  UserEnterExclusive();
2441 
2442  Res = IntDispatchMessage(&SafeMsg);
2443 
2444  UserLeave();
2445  return Res;
2446 }
2447 
2448 BOOL APIENTRY
2449 NtUserTranslateMessage(LPMSG lpMsg, UINT flags)
2450 {
2451  MSG SafeMsg;
2452  BOOL Ret;
2453  PWND pWnd;
2454 
2455  _SEH2_TRY
2456  {
2457  ProbeForRead(lpMsg, sizeof(MSG), 1);
2458  RtlCopyMemory(&SafeMsg, lpMsg, sizeof(MSG));
2459  }
2460  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2461  {
2462  SetLastNtError(_SEH2_GetExceptionCode());
2463  _SEH2_YIELD(return FALSE);
2464  }
2465  _SEH2_END;
2466 
2467  UserEnterExclusive();
2468  pWnd = UserGetWindowObject(SafeMsg.hwnd);
2469  if (pWnd) // Must have a window!
2470  {
2471  Ret = IntTranslateKbdMessage(&SafeMsg, flags);
2472  }
2473  else
2474  {
2475  TRACE("No Window for Translate. hwnd 0x%p Msg %u\n", SafeMsg.hwnd, SafeMsg.message);
2476  Ret = FALSE;
2477  }
2478  UserLeave();
2479 
2480  return Ret;
2481 }
2482 
2483 LRESULT APIENTRY ScrollBarWndProc(HWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam);
2484 
2485 BOOL APIENTRY
2486 NtUserMessageCall( HWND hWnd,
2487  UINT Msg,
2488  WPARAM wParam,
2489  LPARAM lParam,
2490  ULONG_PTR ResultInfo,
2491  DWORD dwType, // fnID?
2492  BOOL Ansi)
2493 {
2494  LRESULT lResult = 0;
2495  BOOL Ret = FALSE;
2496  PWND Window = NULL;
2497  USER_REFERENCE_ENTRY Ref;
2498 
2499  UserEnterExclusive();
2500 
2501  switch(dwType)
2502  {
2503  case FNID_SCROLLBAR:
2504  {
2505  lResult = ScrollBarWndProc(hWnd, Msg, wParam, lParam);
2506  break;
2507  }
2508  case FNID_DESKTOP:
2509  {
2510  Window = UserGetWindowObject(hWnd);
2511  if (Window)
2512  {
2513  //ERR("FNID_DESKTOP IN\n");
2514  Ret = DesktopWindowProc(Window, Msg, wParam, lParam, &lResult);
2515  //ERR("FNID_DESKTOP OUT\n");
2516  }
2517  break;
2518  }
2519  case FNID_MENU:
2520  {
2521  Window = UserGetWindowObject(hWnd);
2522  if (Window)
2523  {
2524  Ret = PopupMenuWndProc( Window, Msg, wParam, lParam, &lResult);
2525  }
2526  break;
2527  }
2528  case FNID_MESSAGEWND:
2529  {
2530  Window = UserGetWindowObject(hWnd);
2531  if (Window)
2532  {
2533  Ret = !UserMessageWindowProc(Window, Msg, wParam, lParam, &lResult);
2534  }
2535  break;
2536  }
2537  case FNID_DEFWINDOWPROC:
2538  /* Validate input */
2539  if (hWnd)
2540  {
2541  Window = UserGetWindowObject(hWnd);
2542  if (!Window)
2543  {
2544  UserLeave();
2545  return FALSE;
2546  }
2547  UserRefObjectCo(Window, &Ref);
2548  }
2549  lResult = IntDefWindowProc(Window, Msg, wParam, lParam, Ansi);
2550  Ret = TRUE;
2551  if (hWnd)
2552  UserDerefObjectCo(Window);
2553  break;
2554  case FNID_SENDNOTIFYMESSAGE:
2555  Ret = UserSendNotifyMessage(hWnd, Msg, wParam, lParam);
2556  break;
2557  case FNID_BROADCASTSYSTEMMESSAGE:
2558  {
2559  BROADCASTPARM parm, *retparam;
2560  DWORD_PTR RetVal = 0;
2561 
2562  if (ResultInfo)
2563  {
2564  _SEH2_TRY
2565  {
2566  ProbeForWrite((PVOID)ResultInfo, sizeof(BROADCASTPARM), 1);
2567  RtlCopyMemory(&parm, (PVOID)ResultInfo, sizeof(BROADCASTPARM));
2568  }
2569  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2570  {
2571  _SEH2_YIELD(break);
2572  }
2573  _SEH2_END;
2574  }
2575  else
2576  break;
2577 
2578  if ( parm.recipients & BSM_ALLDESKTOPS ||
2579  parm.recipients == BSM_ALLCOMPONENTS )
2580  {
2581  PLIST_ENTRY DesktopEntry;
2582  PDESKTOP rpdesk;
2583  HWND *List, hwndDenied = NULL;
2584  HDESK hDesk = NULL;
2585  PWND pwnd, pwndDesk;
2586  ULONG i;
2587  UINT fuFlags;
2588 
2589  for (DesktopEntry = InputWindowStation->DesktopListHead.Flink;
2590  DesktopEntry != &InputWindowStation->DesktopListHead;
2591  DesktopEntry = DesktopEntry->Flink)
2592  {
2593  rpdesk = CONTAINING_RECORD(DesktopEntry, DESKTOP, ListEntry);
2594  pwndDesk = rpdesk->pDeskInfo->spwnd;
2595  List = IntWinListChildren(pwndDesk);
2596 
2597  if (parm.flags & BSF_QUERY)
2598  {
2599  if (List != NULL)
2600  {
2601  if (parm.flags & BSF_FORCEIFHUNG || parm.flags & BSF_NOHANG)
2602  {
2603  fuFlags = SMTO_ABORTIFHUNG;
2604  }
2605  else if (parm.flags & BSF_NOTIMEOUTIFNOTHUNG)
2606  {
2607  fuFlags = SMTO_NOTIMEOUTIFNOTHUNG;
2608  }
2609  else
2610  {
2611  fuFlags = SMTO_NORMAL;
2612  }
2613  co_IntSendMessageTimeout( UserHMGetHandle(pwndDesk),
2614  Msg,
2615  wParam,
2616  lParam,
2617  fuFlags,
2618  2000,
2619  &RetVal);
2620  Ret = TRUE;
2621  for (i = 0; List[i]; i++)
2622  {
2623  pwnd = UserGetWindowObject(List[i]);
2624  if (!pwnd) continue;
2625 
2626  if ( pwnd->fnid == FNID_MENU ||
2627  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2628  continue;
2629 
2630  if ( parm.flags & BSF_IGNORECURRENTTASK )
2631  {
2632  if ( pwnd->head.pti == gptiCurrent )
2633  continue;
2634  }
2635  co_IntSendMessageTimeout( List[i],
2636  Msg,
2637  wParam,
2638  lParam,
2639  fuFlags,
2640  2000,
2641  &RetVal);
2642 
2643  if (!RetVal && EngGetLastError() == ERROR_TIMEOUT)
2644  {
2645  if (!(parm.flags & BSF_FORCEIFHUNG))
2646  Ret = FALSE;
2647  }
2648  if (RetVal == BROADCAST_QUERY_DENY)
2649  {
2650  hwndDenied = List[i];
2651  hDesk = UserHMGetHandle(pwndDesk);
2652  Ret = FALSE;
2653  }
2654  }
2655  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2656  _SEH2_TRY
2657  {
2658  retparam = (PBROADCASTPARM) ResultInfo;
2659  retparam->hDesk = hDesk;
2660  retparam->hWnd = hwndDenied;
2661  }
2662  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2663  {
2664  _SEH2_YIELD(break);
2665  }
2666  _SEH2_END;
2667  if (!Ret) break; // Have a hit! Let everyone know!
2668  }
2669  }
2670  else if (parm.flags & BSF_POSTMESSAGE)
2671  {
2672  if (List != NULL)
2673  {
2674  UserPostMessage(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  UserPostMessage(List[i], Msg, wParam, lParam);
2691  }
2692  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2693  }
2694  Ret = TRUE;
2695  }
2696  else
2697  {
2698  if (List != NULL)
2699  {
2700  UserSendNotifyMessage(UserHMGetHandle(pwndDesk), Msg, wParam, lParam);
2701 
2702  for (i = 0; List[i]; i++)
2703  {
2704  pwnd = UserGetWindowObject(List[i]);
2705  if (!pwnd) continue;
2706 
2707  if ( pwnd->fnid == FNID_MENU ||
2708  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2709  continue;
2710 
2711  if ( parm.flags & BSF_IGNORECURRENTTASK )
2712  {
2713  if ( pwnd->head.pti == gptiCurrent )
2714  continue;
2715  }
2716  UserSendNotifyMessage(List[i], Msg, wParam, lParam);
2717  }
2718  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2719  }
2720  Ret = TRUE;
2721  }
2722  }
2723  }
2724  else if (parm.recipients & BSM_APPLICATIONS)
2725  {
2726  HWND *List, hwndDenied = NULL;
2727  HDESK hDesk = NULL;
2728  PWND pwnd, pwndDesk;
2729  ULONG i;
2730  UINT fuFlags;
2731 
2732  pwndDesk = UserGetDesktopWindow();
2733  List = IntWinListChildren(pwndDesk);
2734 
2735  if (parm.flags & BSF_QUERY)
2736  {
2737  if (List != NULL)
2738  {
2739  if (parm.flags & BSF_FORCEIFHUNG || parm.flags & BSF_NOHANG)
2740  {
2741  fuFlags = SMTO_ABORTIFHUNG;
2742  }
2743  else if (parm.flags & BSF_NOTIMEOUTIFNOTHUNG)
2744  {
2745  fuFlags = SMTO_NOTIMEOUTIFNOTHUNG;
2746  }
2747  else
2748  {
2749  fuFlags = SMTO_NORMAL;
2750  }
2751  co_IntSendMessageTimeout( UserHMGetHandle(pwndDesk),
2752  Msg,
2753  wParam,
2754  lParam,
2755  fuFlags,
2756  2000,
2757  &RetVal);
2758  Ret = TRUE;
2759  for (i = 0; List[i]; i++)
2760  {
2761  pwnd = UserGetWindowObject(List[i]);
2762  if (!pwnd) continue;
2763 
2764  if ( pwnd->fnid == FNID_MENU ||
2765  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2766  continue;
2767 
2768  if ( parm.flags & BSF_IGNORECURRENTTASK )
2769  {
2770  if ( pwnd->head.pti == gptiCurrent )
2771  continue;
2772  }
2773  co_IntSendMessageTimeout( List[i],
2774  Msg,
2775  wParam,
2776  lParam,
2777  fuFlags,
2778  2000,
2779  &RetVal);
2780 
2781  if (!RetVal && EngGetLastError() == ERROR_TIMEOUT)
2782  {
2783  if (!(parm.flags & BSF_FORCEIFHUNG))
2784  Ret = FALSE;
2785  }
2786  if (RetVal == BROADCAST_QUERY_DENY)
2787  {
2788  hwndDenied = List[i];
2789  hDesk = UserHMGetHandle(pwndDesk);
2790  Ret = FALSE;
2791  }
2792  }
2793  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2794  _SEH2_TRY
2795  {
2796  retparam = (PBROADCASTPARM) ResultInfo;
2797  retparam->hDesk = hDesk;
2798  retparam->hWnd = hwndDenied;
2799  }
2800  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2801  {
2802  _SEH2_YIELD(break);
2803  }
2804  _SEH2_END;
2805  }
2806  }
2807  else if (parm.flags & BSF_POSTMESSAGE)
2808  {
2809  if (List != NULL)
2810  {
2811  UserPostMessage(UserHMGetHandle(pwndDesk), Msg, wParam, lParam);
2812 
2813  for (i = 0; List[i]; i++)
2814  {
2815  pwnd = UserGetWindowObject(List[i]);
2816  if (!pwnd) continue;
2817 
2818  if ( pwnd->fnid == FNID_MENU ||
2819  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2820  continue;
2821 
2822  if ( parm.flags & BSF_IGNORECURRENTTASK )
2823  {
2824  if ( pwnd->head.pti == gptiCurrent )
2825  continue;
2826  }
2827  UserPostMessage(List[i], Msg, wParam, lParam);
2828  }
2829  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2830  }
2831  Ret = TRUE;
2832  }
2833  else
2834  {
2835  if (List != NULL)
2836  {
2837  UserSendNotifyMessage(UserHMGetHandle(pwndDesk), Msg, wParam, lParam);
2838 
2839  for (i = 0; List[i]; i++)
2840  {
2841  pwnd = UserGetWindowObject(List[i]);
2842  if (!pwnd) continue;
2843 
2844  if ( pwnd->fnid == FNID_MENU ||
2845  pwnd->pcls->atomClassName == gpsi->atomSysClass[ICLS_SWITCH] )
2846  continue;
2847 
2848  if ( parm.flags & BSF_IGNORECURRENTTASK )
2849  {
2850  if ( pwnd->head.pti == gptiCurrent )
2851  continue;
2852  }
2853  UserSendNotifyMessage(List[i], Msg, wParam, lParam);
2854  }
2855  ExFreePoolWithTag(List, USERTAG_WINDOWLIST);
2856  }
2857  Ret = TRUE;
2858  }
2859  }
2860  }
2861  break;
2862  case FNID_SENDMESSAGECALLBACK:
2863  {
2864  CALL_BACK_INFO CallBackInfo;
2865  ULONG_PTR uResult;
2866 
2867  _SEH2_TRY
2868  {
2869  ProbeForRead((PVOID)ResultInfo, sizeof(CALL_BACK_INFO), 1);
2870  RtlCopyMemory(&CallBackInfo, (PVOID)ResultInfo, sizeof(CALL_BACK_INFO));
2871  }
2872  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2873  {
2874  _SEH2_YIELD(break);
2875  }
2876  _SEH2_END;
2877 
2878  if (is_pointer_message(Msg, wParam))
2879  {
2880  EngSetLastError(ERROR_MESSAGE_SYNC_ONLY );
2881  break;
2882  }
2883 
2884  if (!(Ret = co_IntSendMessageWithCallBack(hWnd, Msg, wParam, lParam,
2885  CallBackInfo.CallBack, CallBackInfo.Context, &uResult)))
2886  {
2887  ERR("Callback failure!\n");
2888  }
2889  }
2890  break;
2891  case FNID_SENDMESSAGE:
2892  {
2893  lResult = co_IntDoSendMessage(hWnd, Msg, wParam, lParam, 0);
2894  Ret = TRUE;
2895 
2896  if (ResultInfo)
2897  {
2898  _SEH2_TRY
2899  {
2900  ProbeForWrite((PVOID)ResultInfo, sizeof(ULONG_PTR), 1);
2901  RtlCopyMemory((PVOID)ResultInfo, &lResult, sizeof(ULONG_PTR));
2902  }
2903  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2904  {
2905  Ret = FALSE;
2906  _SEH2_YIELD(break);
2907  }
2908  _SEH2_END;
2909  }
2910  break;
2911  }
2912  case FNID_SENDMESSAGEFF:
2913  case FNID_SENDMESSAGEWTOOPTION:
2914  {
2915  DOSENDMESSAGE dsm, *pdsm = (PDOSENDMESSAGE)ResultInfo;
2916  if (ResultInfo)
2917  {
2918  _SEH2_TRY
2919  {
2920  ProbeForRead(pdsm, sizeof(DOSENDMESSAGE), 1);
2921  RtlCopyMemory(&dsm, pdsm, sizeof(DOSENDMESSAGE));
2922  }
2923  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2924  {
2925  _SEH2_YIELD(break);
2926  }
2927  _SEH2_END;
2928  }
2929 
2930  Ret = co_IntDoSendMessage( hWnd, Msg, wParam, lParam, pdsm ? &dsm : NULL );
2931 
2932  if (pdsm)
2933  {
2934  _SEH2_TRY
2935  {
2936  ProbeForWrite(pdsm, sizeof(DOSENDMESSAGE), 1);
2937  RtlCopyMemory(pdsm, &dsm, sizeof(DOSENDMESSAGE));
2938  }
2939  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2940  {
2941  Ret = FALSE;
2942  _SEH2_YIELD(break);
2943  }
2944  _SEH2_END;
2945  }
2946  break;
2947  }
2948  // CallNextHook bypass.
2949  case FNID_CALLWNDPROC:
2950  case FNID_CALLWNDPROCRET:
2951  {
2952  PTHREADINFO pti;
2953  PCLIENTINFO ClientInfo;
2954  PHOOK NextObj, Hook;
2955 
2956  pti = GetW32ThreadInfo();
2957 
2958  Hook = pti->sphkCurrent;
2959 
2960  if (!Hook) break;
2961 
2962  NextObj = Hook->phkNext;
2963  ClientInfo = pti->pClientInfo;
2964  _SEH2_TRY
2965  {
2966  ClientInfo->phkCurrent = NextObj;
2967  }
2968  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
2969  {
2970  ClientInfo = NULL;
2971  }
2972  _SEH2_END;
2973 
2974  if (!ClientInfo || !NextObj) break;
2975 
2976  NextObj->phkNext = IntGetNextHook(NextObj);
2977 
2978  if ( Hook->HookId == WH_CALLWNDPROC)
2979  {
2980  CWPSTRUCT CWP;
2981  CWP.hwnd = hWnd;
2982  CWP.message = Msg;
2983  CWP.wParam = wParam;
2984  CWP.lParam = lParam;
2985  TRACE("WH_CALLWNDPROC: Hook %p NextHook %p\n", Hook, NextObj);
2986 
2987  lResult = co_IntCallHookProc( Hook->HookId,
2988  HC_ACTION,
2989  ((ClientInfo->CI_flags & CI_CURTHPRHOOK) ? 1 : 0),
2990  (LPARAM)&CWP,
2991  Hook->Proc,
2992  Hook->ihmod,
2993  Hook->offPfn,
2994  Hook->Ansi,
2995  &Hook->ModuleName);
2996  }
2997  else
2998  {
2999  CWPRETSTRUCT CWPR;
3000  CWPR.hwnd = hWnd;
3001  CWPR.message = Msg;
3002  CWPR.wParam = wParam;
3003  CWPR.lParam = lParam;
3004  CWPR.lResult = ClientInfo->dwHookData;
3005 
3006  lResult = co_IntCallHookProc( Hook->HookId,
3007  HC_ACTION,
3008  ((ClientInfo->CI_flags & CI_CURTHPRHOOK) ? 1 : 0),
3009  (LPARAM)&CWPR,
3010  Hook->Proc,
3011  Hook->ihmod,
3012  Hook->offPfn,
3013  Hook->Ansi,
3014  &Hook->ModuleName);
3015  }
3016  }
3017  break;
3018  }
3019 
3020  switch(dwType)
3021  {
3022  case FNID_DEFWINDOWPROC:
3023  case FNID_CALLWNDPROC:
3024  case FNID_CALLWNDPROCRET:
3025  case FNID_SCROLLBAR:
3026  case FNID_DESKTOP:
3027  case FNID_MENU:
3028  if (ResultInfo)
3029  {
3030  _SEH2_TRY
3031  {
3032  ProbeForWrite((PVOID)ResultInfo, sizeof(LRESULT), 1);
3033  RtlCopyMemory((PVOID)ResultInfo, &lResult, sizeof(LRESULT));
3034  }
3035  _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
3036  {
3037  Ret = FALSE;
3038  }
3039  _SEH2_END;
3040  }
3041  break;
3042  default:
3043  break;
3044  }
3045 
3046  UserLeave();
3047 
3048  return Ret;
3049 }
3050 
3051 #define INFINITE 0xFFFFFFFF
3052 #define WAIT_FAILED ((DWORD)0xFFFFFFFF)
3053 
3054 DWORD
3055 APIENTRY
3056 NtUserWaitForInputIdle( IN HANDLE hProcess,
3057  IN DWORD dwMilliseconds,
3058  IN BOOL bSharedWow)
3059 {
3060  PEPROCESS Process;
3061  PPROCESSINFO W32Process;
3062  PTHREADINFO pti;
3063  NTSTATUS Status;
3064  HANDLE Handles[3];
3065  LARGE_INTEGER Timeout;
3066  KAPC_STATE ApcState;
3067 
3068  UserEnterExclusive();
3069 
3070  Status = ObReferenceObjectByHandle(hProcess,
3071  PROCESS_QUERY_INFORMATION,
3072  *PsProcessType,
3073  UserMode,
3074  (PVOID*)&Process,
3075  NULL);
3076 
3077  if (!NT_SUCCESS(Status))
3078  {
3079  UserLeave();
3080  SetLastNtError(Status);
3081  return WAIT_FAILED;
3082  }
3083 
3084  pti = PsGetCurrentThreadWin32Thread();
3085 
3086  W32Process = (PPROCESSINFO)Process->Win32Process;
3087 
3088  if ( PsGetProcessExitProcessCalled(Process) ||
3089  !W32Process ||
3090  pti->ppi == W32Process)
3091  {
3092  ObDereferenceObject(Process);
3093  UserLeave();
3094  EngSetLastError(ERROR_INVALID_PARAMETER);
3095  return WAIT_FAILED;
3096  }
3097 
3098  Handles[0] = Process;
3099  Handles[1] = W32Process->InputIdleEvent;
3100  Handles[2] = pti->pEventQueueServer; // IntMsqSetWakeMask returns hEventQueueClient
3101 
3102  if (!Handles[1])
3103  {
3104  ObDereferenceObject(Process);
3105  UserLeave();
3106  return STATUS_SUCCESS; /* no event to wait on */
3107  }
3108 
3109  if (dwMilliseconds != INFINITE)
3110  Timeout.QuadPart = (LONGLONG) dwMilliseconds * (LONGLONG) -10000;
3111 
3112  KeStackAttachProcess(&Process->Pcb, &ApcState);
3113 
3114  W32Process->W32PF_flags |= W32PF_WAITFORINPUTIDLE;
3115  for (pti = W32Process->ptiList; pti; pti = pti->ptiSibling)
3116  {
3117  pti->TIF_flags |= TIF_WAITFORINPUTIDLE;
3118  pti->pClientInfo->dwTIFlags = pti->TIF_flags;
3119  }
3120 
3121  KeUnstackDetachProcess(&ApcState);
3122 
3123  TRACE("WFII: ppi %p\n", W32Process);
3124  TRACE("WFII: waiting for %p\n", Handles[1] );
3125 
3126  /*
3127  * We must add a refcount to our current PROCESSINFO,
3128  * because anything could happen (including process death) we're leaving win32k
3129  */
3130  IntReferenceProcessInfo(W32Process);
3131 
3132  do
3133  {
3134  UserLeave();
3135  Status = KeWaitForMultipleObjects( 3,
3136  Handles,
3137  WaitAny,
3138  UserRequest,
3139  UserMode,
3140  FALSE,
3141  dwMilliseconds == INFINITE ? NULL : &Timeout,
3142  NULL);
3143  UserEnterExclusive();
3144 
3145  if (!NT_SUCCESS(Status))
3146  {
3147  SetLastNtError(Status);
3148  Status = WAIT_FAILED;
3149  goto WaitExit;
3150  }
3151 
3152  switch (Status)
3153  {
3154  case STATUS_WAIT_0:
3155  goto WaitExit;
3156 
3157  case STATUS_WAIT_2:
3158  {
3159  MSG Msg;
3160  co_IntGetPeekMessage( &Msg, 0, 0, 0, PM_REMOVE | PM_QS_SENDMESSAGE, FALSE);
3161  ERR("WFII: WAIT 2\n");
3162  }
3163  break;
3164 
3165  case STATUS_TIMEOUT:
3166  ERR("WFII: timeout\n");
3167  case WAIT_FAILED:
3168  goto WaitExit;
3169 
3170  default:
3171  ERR("WFII: finished\n");
3172  Status = STATUS_SUCCESS;
3173  goto WaitExit;
3174  }
3175  }
3176  while (TRUE);
3177 
3178 WaitExit:
3179  for (pti = W32Process->ptiList; pti; pti = pti->ptiSibling)
3180  {
3181  pti->TIF_flags &= ~TIF_WAITFORINPUTIDLE;
3182  pti->pClientInfo->dwTIFlags = pti->TIF_flags;
3183  }
3184  W32Process->W32PF_flags &= ~W32PF_WAITFORINPUTIDLE;
3185  IntDereferenceProcessInfo(W32Process);
3186  ObDereferenceObject(Process);
3187  UserLeave();
3188  return Status;
3189 }
3190 
3191 /* EOF */
_SEH2_TRY
_SEH2_TRY
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ZwYieldExecution
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static LRESULT FASTCALL co_IntDoSendMessage(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, PDOSENDMESSAGE dsm)
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IntReferenceProcessInfo
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#define W32PF_WAITFORINPUTIDLE
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INT exitCode
Definition: win32.h:103
WM_WININICHANGE
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Definition: winuser.h:1620
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Definition: wsk.h:426
QS_SENDMESSAGE
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Definition: winuser.h:874
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Definition: winuser.h:1705
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Definition: winuser.h:3107
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CopyMsgToKernelMem
static NTSTATUS FASTCALL CopyMsgToKernelMem(MSG *KernelModeMsg, MSG *UserModeMsg, PMSGMEMORY MsgMemoryEntry)
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Definition: winuser.h:1022
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CREATESTRUCTW
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Definition: winuser.h:35
gptiCurrent
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CONTAINING_RECORD
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Definition: winuser.h:3577
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Definition: ntuser.h:861
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Definition: metric.c:194
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UserEnterExclusive
VOID FASTCALL UserEnterExclusive(VOID)
Definition: ntuser.c:249
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UserHMGetHandle
#define UserHMGetHandle(obj)
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Definition: ntuser.h:856
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struct tagDRAWITEMSTRUCT DRAWITEMSTRUCT
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NtUserMessageCall
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struct tagHELPINFO HELPINFO
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PTIMER FASTCALL FindSystemTimer(PMSG pMsg)
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Definition: msgqueue.h:239
FNID_SENDMESSAGEFF
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Definition: shobjidl.idl:595
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ERROR_INVALID_WINDOW_HANDLE
#define ERROR_INVALID_WINDOW_HANDLE
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ULONG fsHooks
Definition: win32.h:113
co_UserSetCapture
HWND FASTCALL co_UserSetCapture(HWND hWnd)
Definition: focus.c:1453
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SENDASYNCPROC CallBack
Definition: callback.h:50
size
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Definition: glext.h:5919
PTHREADINFO
struct _THREADINFO * PTHREADINFO
Definition: ntwin32.h:6
ClearMsgBitsMask
VOID FASTCALL ClearMsgBitsMask(PTHREADINFO pti, UINT MessageBits)
Definition: msgqueue.c:445
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Definition: ntuser.h:242
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#define CB_GETDROPPEDCONTROLRECT
Definition: winuser.h:1934
IntCallWndProc
static VOID FASTCALL IntCallWndProc(PWND Window, HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
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Definition: ntuser.h:236
tagHOOK::ModuleName
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Definition: ntuser.h:243
ASSERT
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Definition: mode.c:44
RtlEqualMemory
NTSYSAPI ULONG NTAPI RtlEqualMemory(CONST VOID *Source1, CONST VOID *Source2, ULONG Length)
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int y
Definition: winuser.h:3581
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__wchar_t WCHAR
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DesktopWindow
Implementation of the Explorer desktop window.
Definition: desktop.h:51
NT_SUCCESS
#define NT_SUCCESS(StatCode)
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POOL_TYPE
INT POOL_TYPE
Definition: typedefs.h:78
EXCEPTION_EXECUTE_HANDLER
#define EXCEPTION_EXECUTE_HANDLER
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_LARGE_STRING::Length
ULONG Length
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UlongToHandle
#define UlongToHandle(ul)
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#define WM_TIMER
Definition: winuser.h:1732
WM_WINDOWPOSCHANGING
#define WM_WINDOWPOSCHANGING
Definition: winuser.h:1651
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PKEVENT pEventQueueServer
Definition: win32.h:121
WM_MOUSELAST
#define WM_MOUSELAST
Definition: winuser.h:1791
ISITHOOKED
#define ISITHOOKED(HookId)
Definition: hook.h:6
SENDASYNCPROC
void(CALLBACK * SENDASYNCPROC)(HWND, UINT, ULONG_PTR, LRESULT)
Definition: winuser.h:2906
co_IntSendMessageTimeout
LRESULT FASTCALL co_IntSendMessageTimeout(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, UINT uFlags, UINT uTimeout, ULONG_PTR *uResult)
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ObDereferenceObject
#define ObDereferenceObject
Definition: obfuncs.h:203
NtUserDragDetect
BOOL APIENTRY NtUserDragDetect(HWND hWnd, POINT pt)
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QS_EVENT
#define QS_EVENT
Definition: undocuser.h:96
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:2379
DECLARE_RETURN
#define DECLARE_RETURN(type)
Definition: ntuser.h:3
WM_KEYLAST
#define WM_KEYLAST
Definition: winuser.h:1718
WM_MEASUREITEM
#define WM_MEASUREITEM
Definition: winuser.h:1636
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Definition: winuser.h:3015
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VOID FASTCALL MsqPostMessage(PTHREADINFO pti, MSG *Msg, BOOLEAN HardwareMessage, DWORD MessageBits, DWORD dwQEvent, LONG_PTR ExtraInfo)
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FNID_SENDMESSAGECALLBACK
#define FNID_SENDMESSAGECALLBACK
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Definition: msgqueue.h:20
MMS_SIZE_LPARAMSZ
#define MMS_SIZE_LPARAMSZ
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HOOKPROC Proc
Definition: ntuser.h:241
tagCWPSTRUCT::wParam
WPARAM wParam
Definition: winuser.h:3016
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#define UserIsMessageWindow(pWnd)
Definition: desktop.h:197
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:2106
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
IntMsgCreateStructW
BOOL FASTCALL IntMsgCreateStructW(PWND Window, CREATESTRUCTW *pCsw, CREATESTRUCTW *Cs, PVOID *ppszClass, PVOID *ppszName)
Definition: message.c:597
ICLS_SWITCH
#define ICLS_SWITCH
Definition: ntuser.h:911
_THREADINFO::pClientInfo
struct _CLIENTINFO * pClientInfo
Definition: win32.h:90
Window
int Window
Definition: x11stubs.h:26
POSTEVENT_NWE
#define POSTEVENT_NWE
Definition: msgqueue.h:125
co_IntCallSentMessageCallback
VOID APIENTRY co_IntCallSentMessageCallback(SENDASYNCPROC CompletionCallback, HWND hWnd, UINT Msg, ULONG_PTR CompletionCallbackContext, LRESULT Result)
Definition: callback.c:238
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:1525
WM_PAINT
#define WM_PAINT
Definition: winuser.h:1610
HCBT_QS
#define HCBT_QS
Definition: winuser.h:57
Message
CHAR Message[80]
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ExAllocatePoolWithTag
#define ExAllocatePoolWithTag(hernya, size, tag)
Definition: env_spec_w32.h:350
WM_MDIGETACTIVE
#define WM_MDIGETACTIVE
Definition: winuser.h:1811
co_HOOK_CallHooks
LRESULT APIENTRY co_HOOK_CallHooks(INT HookId, INT Code, WPARAM wParam, LPARAM lParam)
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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)
Definition: desktop.c:1386
FNID_SENDNOTIFYMESSAGE
#define FNID_SENDNOTIFYMESSAGE
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WM_DDE_LAST
#define WM_DDE_LAST
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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:3017
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
LB_GETTEXT
#define LB_GETTEXT
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WNDS2_WMPAINTSENT
#define WNDS2_WMPAINTSENT
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co_IntSendMessage
LRESULT FASTCALL co_IntSendMessage(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam)
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WH_CALLWNDPROC
#define WH_CALLWNDPROC
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CI_CURTHPRHOOK
#define CI_CURTHPRHOOK
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g_MsgMemory
static MSGMEMORY g_MsgMemory[]
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SBM_GETRANGE
#define SBM_GETRANGE
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tagCREATESTRUCTW::lpszName
LPCWSTR lpszName
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CB_SELECTSTRING
#define CB_SELECTSTRING
Definition: winuser.h:1950
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_Must_inspect_result_ _In_ WDFCMRESLIST List
Definition: wdfresource.h:550
IntInitMessagePumpHook
BOOL APIENTRY IntInitMessagePumpHook(VOID)
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tagDOSENDMESSAGE::Result
ULONG_PTR Result
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