xref: /reactos/win32ss/user/ntuser/misc.c (revision 7b1049c8) 
1 /*
2  * COPYRIGHT:        See COPYING in the top level directory
3  * PROJECT:          ReactOS Win32k subsystem
4  * PURPOSE:          Miscellaneous User functions
5  * FILE:             win32ss/user/ntuser/misc.c
6  * PROGRAMER:        Ge van Geldorp (ge@gse.nl)
7  */
8 
9 #include <win32k.h>
10 DBG_DEFAULT_CHANNEL(UserMisc);
11 
12 
13 /*
14  * NOTE: _scwprintf() is NOT exported by ntoskrnl.exe,
15  * only _vscwprintf() is, so we need to implement it here.
16  * Code comes from sdk/lib/crt/printf/_scwprintf.c .
17  * See also win32ss/user/winsrv/usersrv/harderror.c .
18  */
19 int
20 __cdecl
21 _scwprintf(
22     const wchar_t *format,
23     ...)
24 {
25     int len;
26     va_list args;
27 
28     va_start(args, format);
29     len = _vscwprintf(format, args);
30     va_end(args);
31 
32     return len;
33 }
34 
35 
36 /*
37  * Test the Thread to verify and validate it. Hard to the core tests are required.
38  */
39 PTHREADINFO
40 FASTCALL
41 IntTID2PTI(HANDLE id)
42 {
43    NTSTATUS Status;
44    PETHREAD Thread;
45    PTHREADINFO pti;
46    Status = PsLookupThreadByThreadId(id, &Thread);
47    if (!NT_SUCCESS(Status))
48    {
49       return NULL;
50    }
51    if (PsIsThreadTerminating(Thread))
52    {
53       ObDereferenceObject(Thread);
54       return NULL;
55    }
56    pti = PsGetThreadWin32Thread(Thread);
57    if (!pti)
58    {
59       ObDereferenceObject(Thread);
60       return NULL;
61    }
62    // Validate and verify!
63    _SEH2_TRY
64    {
65       if (pti->TIF_flags & TIF_INCLEANUP) pti = NULL;
66       if (pti && !(pti->TIF_flags & TIF_GUITHREADINITIALIZED)) pti = NULL;
67       if (PsGetThreadId(Thread) != id) pti = NULL;
68    }
69    _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
70    {
71       pti = NULL;
72    }
73    _SEH2_END
74    ObDereferenceObject(Thread);
75    return pti;
76 }
77 
78 DWORD
79 FASTCALL
80 UserGetLanguageToggle(VOID)
81 {
82     NTSTATUS Status;
83     DWORD dwValue = 0;
84 
85     Status = RegReadUserSetting(L"Keyboard Layout\\Toggle", L"Layout Hotkey", REG_SZ, &dwValue, sizeof(dwValue));
86     if (NT_SUCCESS(Status))
87     {
88         dwValue = atoi((char *)&dwValue);
89         TRACE("Layout Hotkey %d\n",dwValue);
90     }
91     return dwValue;
92 }
93 
94 USHORT
95 FASTCALL
96 UserGetLanguageID(VOID)
97 {
98   HANDLE KeyHandle;
99   OBJECT_ATTRIBUTES ObAttr;
100 //  http://support.microsoft.com/kb/324097
101   ULONG Ret = MAKELANGID(LANG_ENGLISH, SUBLANG_DEFAULT);
102   PKEY_VALUE_PARTIAL_INFORMATION pKeyInfo;
103   ULONG Size = sizeof(KEY_VALUE_PARTIAL_INFORMATION) + MAX_PATH*sizeof(WCHAR);
104   UNICODE_STRING Language;
105 
106   RtlInitUnicodeString( &Language,
107     L"\\Registry\\Machine\\System\\CurrentControlSet\\Control\\Nls\\Language");
108 
109   InitializeObjectAttributes( &ObAttr,
110                               &Language,
111                               OBJ_CASE_INSENSITIVE | OBJ_KERNEL_HANDLE,
112                               NULL,
113                               NULL);
114 
115   if ( NT_SUCCESS(ZwOpenKey(&KeyHandle, KEY_READ, &ObAttr)))
116   {
117      pKeyInfo = ExAllocatePoolWithTag(PagedPool, Size, TAG_STRING);
118      if ( pKeyInfo )
119      {
120         RtlInitUnicodeString(&Language, L"Default");
121 
122         if ( NT_SUCCESS(ZwQueryValueKey( KeyHandle,
123                                          &Language,
124                         KeyValuePartialInformation,
125                                           pKeyInfo,
126                                               Size,
127                                              &Size)) )
128       {
129         RtlInitUnicodeString(&Language, (PWSTR)pKeyInfo->Data);
130         if (!NT_SUCCESS(RtlUnicodeStringToInteger(&Language, 16, &Ret)))
131         {
132             Ret = MAKELANGID(LANG_ENGLISH, SUBLANG_DEFAULT);
133         }
134       }
135       ExFreePoolWithTag(pKeyInfo, TAG_STRING);
136     }
137     ZwClose(KeyHandle);
138   }
139   TRACE("Language ID = %x\n",Ret);
140   return (USHORT) Ret;
141 }
142 
143 HBRUSH
144 FASTCALL
145 GetControlColor(
146    PWND pwndParent,
147    PWND pwnd,
148    HDC hdc,
149    UINT CtlMsg)
150 {
151     HBRUSH hBrush;
152 
153     if (!pwndParent) pwndParent = pwnd;
154 
155     if ( pwndParent->head.pti->ppi != PsGetCurrentProcessWin32Process())
156     {
157        return (HBRUSH)IntDefWindowProc( pwndParent, CtlMsg, (WPARAM)hdc, (LPARAM)UserHMGetHandle(pwnd), FALSE);
158     }
159 
160     hBrush = (HBRUSH)co_IntSendMessage( UserHMGetHandle(pwndParent), CtlMsg, (WPARAM)hdc, (LPARAM)UserHMGetHandle(pwnd));
161 
162     if (!hBrush || !GreIsHandleValid(hBrush))
163     {
164        hBrush = (HBRUSH)IntDefWindowProc( pwndParent, CtlMsg, (WPARAM)hdc, (LPARAM)UserHMGetHandle(pwnd), FALSE);
165     }
166     return hBrush;
167 }
168 
169 HBRUSH
170 FASTCALL
171 GetControlBrush(
172    PWND pwnd,
173    HDC  hdc,
174    UINT ctlType)
175 {
176     PWND pwndParent = IntGetParent(pwnd);
177     return GetControlColor( pwndParent, pwnd, hdc, ctlType);
178 }
179 
180 HBRUSH
181 APIENTRY
182 NtUserGetControlBrush(
183    HWND hwnd,
184    HDC  hdc,
185    UINT ctlType)
186 {
187    PWND pwnd;
188    HBRUSH hBrush = NULL;
189 
190    UserEnterExclusive();
191    if ( (pwnd = UserGetWindowObject(hwnd)) &&
192        ((ctlType - WM_CTLCOLORMSGBOX) < CTLCOLOR_MAX) &&
193         hdc )
194    {
195       hBrush = GetControlBrush(pwnd, hdc, ctlType);
196    }
197    UserLeave();
198    return hBrush;
199 }
200 
201 /*
202  * Called from PaintRect, works almost like wine PaintRect16 but returns hBrush.
203  */
204 HBRUSH
205 APIENTRY
206 NtUserGetControlColor(
207    HWND hwndParent,
208    HWND hwnd,
209    HDC hdc,
210    UINT CtlMsg) // Wine PaintRect: WM_CTLCOLORMSGBOX + hbrush
211 {
212    PWND pwnd, pwndParent = NULL;
213    HBRUSH hBrush = NULL;
214 
215    UserEnterExclusive();
216    if ( (pwnd = UserGetWindowObject(hwnd)) &&
217        ((CtlMsg - WM_CTLCOLORMSGBOX) < CTLCOLOR_MAX) &&
218         hdc )
219    {
220       if (hwndParent) pwndParent = UserGetWindowObject(hwndParent);
221       hBrush = GetControlColor( pwndParent, pwnd, hdc, CtlMsg);
222    }
223    UserLeave();
224    return hBrush;
225 }
226 
227 /*
228  * @unimplemented
229  */
230 DWORD_PTR APIENTRY
231 NtUserGetThreadState(
232    DWORD Routine)
233 {
234    DWORD_PTR ret = 0;
235 
236    TRACE("Enter NtUserGetThreadState\n");
237    if (Routine != THREADSTATE_GETTHREADINFO)
238    {
239        UserEnterShared();
240    }
241    else
242    {
243        UserEnterExclusive();
244    }
245 
246    switch (Routine)
247    {
248       case THREADSTATE_GETTHREADINFO:
249          GetW32ThreadInfo();
250          break;
251       case THREADSTATE_FOCUSWINDOW:
252          ret = (DWORD_PTR)IntGetThreadFocusWindow();
253          break;
254       case THREADSTATE_CAPTUREWINDOW:
255          /* FIXME: Should use UserEnterShared */
256          ret = (DWORD_PTR)IntGetCapture();
257          break;
258       case THREADSTATE_PROGMANWINDOW:
259          ret = (DWORD_PTR)GetW32ThreadInfo()->pDeskInfo->hProgmanWindow;
260          break;
261       case THREADSTATE_TASKMANWINDOW:
262          ret = (DWORD_PTR)GetW32ThreadInfo()->pDeskInfo->hTaskManWindow;
263          break;
264       case THREADSTATE_ACTIVEWINDOW:
265          ret = (DWORD_PTR)UserGetActiveWindow();
266          break;
267       case THREADSTATE_INSENDMESSAGE:
268          {
269            PUSER_SENT_MESSAGE Message =
270                 ((PTHREADINFO)PsGetCurrentThreadWin32Thread())->pusmCurrent;
271            TRACE("THREADSTATE_INSENDMESSAGE\n");
272 
273            ret = ISMEX_NOSEND;
274            if (Message)
275            {
276              if (Message->ptiSender)
277                 ret = ISMEX_SEND;
278              else
279              {
280                 if (Message->CompletionCallback)
281                    ret = ISMEX_CALLBACK;
282                 else
283                    ret = ISMEX_NOTIFY;
284              }
285              /* If ReplyMessage */
286              if (Message->QS_Flags & QS_SMRESULT) ret |= ISMEX_REPLIED;
287            }
288 
289            break;
290          }
291       case THREADSTATE_GETMESSAGETIME:
292          ret = ((PTHREADINFO)PsGetCurrentThreadWin32Thread())->timeLast;
293          break;
294 
295       case THREADSTATE_UPTIMELASTREAD:
296          {
297            PTHREADINFO pti;
298            pti = PsGetCurrentThreadWin32Thread();
299            pti->pcti->timeLastRead = EngGetTickCount32();
300            break;
301          }
302 
303       case THREADSTATE_GETINPUTSTATE:
304          ret = LOWORD(IntGetQueueStatus(QS_POSTMESSAGE|QS_TIMER|QS_PAINT|QS_SENDMESSAGE|QS_INPUT)) & (QS_KEY | QS_MOUSEBUTTON);
305          break;
306 
307       case THREADSTATE_FOREGROUNDTHREAD:
308          ret = (gpqForeground == GetW32ThreadInfo()->MessageQueue);
309          break;
310       case THREADSTATE_GETCURSOR:
311          ret = (DWORD_PTR) (GetW32ThreadInfo()->MessageQueue->CursorObject ?
312                             UserHMGetHandle(GetW32ThreadInfo()->MessageQueue->CursorObject) : 0);
313          break;
314       case THREADSTATE_GETMESSAGEEXTRAINFO:
315          ret = (DWORD_PTR)MsqGetMessageExtraInfo();
316         break;
317    }
318 
319    TRACE("Leave NtUserGetThreadState, ret=%lu\n", ret);
320    UserLeave();
321 
322    return ret;
323 }
324 
325 DWORD
326 APIENTRY
327 NtUserSetThreadState(
328    DWORD Set,
329    DWORD Flags)
330 {
331    PTHREADINFO pti;
332    DWORD Ret = 0;
333    // Test the only flags user can change.
334    if (Set & ~(QF_FF10STATUS|QF_DIALOGACTIVE|QF_TABSWITCHING|QF_FMENUSTATUS|QF_FMENUSTATUSBREAK)) return 0;
335    if (Flags & ~(QF_FF10STATUS|QF_DIALOGACTIVE|QF_TABSWITCHING|QF_FMENUSTATUS|QF_FMENUSTATUSBREAK)) return 0;
336    UserEnterExclusive();
337    pti = PsGetCurrentThreadWin32Thread();
338    if (pti->MessageQueue)
339    {
340       Ret = pti->MessageQueue->QF_flags;    // Get the queue flags.
341       if (Set)
342          pti->MessageQueue->QF_flags |= (Set&Flags); // Set the queue flags.
343       else
344       {
345          if (Flags) pti->MessageQueue->QF_flags &= ~Flags; // Clr the queue flags.
346       }
347    }
348    UserLeave();
349    return Ret;
350 }
351 
352 UINT
353 APIENTRY
354 NtUserGetDoubleClickTime(VOID)
355 {
356    UINT Result;
357 
358    TRACE("Enter NtUserGetDoubleClickTime\n");
359    UserEnterShared();
360 
361    // FIXME: Check if this works on non-interactive winsta
362    Result = gspv.iDblClickTime;
363 
364    TRACE("Leave NtUserGetDoubleClickTime, ret=%u\n", Result);
365    UserLeave();
366    return Result;
367 }
368 
369 BOOL
370 APIENTRY
371 NtUserGetGUIThreadInfo(
372    DWORD idThread, /* If NULL use foreground thread */
373    LPGUITHREADINFO lpgui)
374 {
375    NTSTATUS Status;
376    PTHRDCARETINFO CaretInfo;
377    GUITHREADINFO SafeGui;
378    PDESKTOP Desktop;
379    PUSER_MESSAGE_QUEUE MsgQueue;
380    PTHREADINFO W32Thread, pti;
381 
382    DECLARE_RETURN(BOOLEAN);
383 
384    TRACE("Enter NtUserGetGUIThreadInfo\n");
385    UserEnterShared();
386 
387    Status = MmCopyFromCaller(&SafeGui, lpgui, sizeof(DWORD));
388    if(!NT_SUCCESS(Status))
389    {
390       SetLastNtError(Status);
391       RETURN( FALSE);
392    }
393 
394    if(SafeGui.cbSize != sizeof(GUITHREADINFO))
395    {
396       EngSetLastError(ERROR_INVALID_PARAMETER);
397       RETURN( FALSE);
398    }
399 
400    if (idThread)
401    {
402       pti = PsGetCurrentThreadWin32Thread();
403 
404       // Validate Tread ID
405       W32Thread = IntTID2PTI((HANDLE)(DWORD_PTR)idThread);
406 
407       if ( !W32Thread )
408       {
409           EngSetLastError(ERROR_ACCESS_DENIED);
410           RETURN( FALSE);
411       }
412 
413       Desktop = W32Thread->rpdesk;
414 
415       // Check Desktop and it must be the same as current.
416       if ( !Desktop || Desktop != pti->rpdesk )
417       {
418           EngSetLastError(ERROR_ACCESS_DENIED);
419           RETURN( FALSE);
420       }
421 
422       if ( W32Thread->MessageQueue )
423         MsgQueue = W32Thread->MessageQueue;
424       else
425       {
426         if ( Desktop ) MsgQueue = Desktop->ActiveMessageQueue;
427       }
428    }
429    else
430    {  /* Get the foreground thread */
431       /* FIXME: Handle NULL queue properly? */
432       MsgQueue = IntGetFocusMessageQueue();
433       if(!MsgQueue)
434       {
435         EngSetLastError(ERROR_ACCESS_DENIED);
436         RETURN( FALSE);
437       }
438    }
439 
440    CaretInfo = &MsgQueue->CaretInfo;
441 
442    SafeGui.flags = (CaretInfo->Visible ? GUI_CARETBLINKING : 0);
443 /*
444    if (W32Thread->pMenuState->pGlobalPopupMenu)
445    {
446        SafeGui.flags |= GUI_INMENUMODE;
447 
448        if (W32Thread->pMenuState->pGlobalPopupMenu->spwndNotify)
449           SafeGui.hwndMenuOwner = UserHMGetHandle(W32Thread->pMenuState->pGlobalPopupMenu->spwndNotify);
450 
451        if (W32Thread->pMenuState->pGlobalPopupMenu->fHasMenuBar)
452        {
453           if (W32Thread->pMenuState->pGlobalPopupMenu->fIsSysMenu)
454           {
455              SafeGui.flags |= GUI_SYSTEMMENUMODE;
456           }
457        }
458        else
459        {
460           SafeGui.flags |= GUI_POPUPMENUMODE;
461        }
462    }
463  */
464    SafeGui.hwndMenuOwner = MsgQueue->MenuOwner;
465 
466    if (MsgQueue->MenuOwner)
467       SafeGui.flags |= GUI_INMENUMODE | MsgQueue->MenuState;
468 
469    if (MsgQueue->MoveSize)
470       SafeGui.flags |= GUI_INMOVESIZE;
471 
472    /* FIXME: Add flag GUI_16BITTASK */
473 
474    SafeGui.hwndActive = MsgQueue->spwndActive ? UserHMGetHandle(MsgQueue->spwndActive) : 0;
475    SafeGui.hwndFocus = MsgQueue->spwndFocus ? UserHMGetHandle(MsgQueue->spwndFocus) : 0;
476    SafeGui.hwndCapture = MsgQueue->spwndCapture ? UserHMGetHandle(MsgQueue->spwndCapture) : 0;
477    SafeGui.hwndMoveSize = MsgQueue->MoveSize;
478    SafeGui.hwndCaret = CaretInfo->hWnd;
479 
480    SafeGui.rcCaret.left = CaretInfo->Pos.x;
481    SafeGui.rcCaret.top = CaretInfo->Pos.y;
482    SafeGui.rcCaret.right = SafeGui.rcCaret.left + CaretInfo->Size.cx;
483    SafeGui.rcCaret.bottom = SafeGui.rcCaret.top + CaretInfo->Size.cy;
484 
485    Status = MmCopyToCaller(lpgui, &SafeGui, sizeof(GUITHREADINFO));
486    if(!NT_SUCCESS(Status))
487    {
488       SetLastNtError(Status);
489       RETURN( FALSE);
490    }
491 
492    RETURN( TRUE);
493 
494 CLEANUP:
495    TRACE("Leave NtUserGetGUIThreadInfo, ret=%u\n",_ret_);
496    UserLeave();
497    END_CLEANUP;
498 }
499 
500 
501 DWORD
502 APIENTRY
503 NtUserGetGuiResources(
504    HANDLE hProcess,
505    DWORD uiFlags)
506 {
507    PEPROCESS Process;
508    PPROCESSINFO W32Process;
509    NTSTATUS Status;
510    DWORD Ret = 0;
511    DECLARE_RETURN(DWORD);
512 
513    TRACE("Enter NtUserGetGuiResources\n");
514    UserEnterShared();
515 
516    Status = ObReferenceObjectByHandle(hProcess,
517                                       PROCESS_QUERY_INFORMATION,
518                                       *PsProcessType,
519                                       ExGetPreviousMode(),
520                                       (PVOID*)&Process,
521                                       NULL);
522 
523    if(!NT_SUCCESS(Status))
524    {
525       SetLastNtError(Status);
526       RETURN( 0);
527    }
528 
529    W32Process = (PPROCESSINFO)Process->Win32Process;
530    if(!W32Process)
531    {
532       ObDereferenceObject(Process);
533       EngSetLastError(ERROR_INVALID_PARAMETER);
534       RETURN( 0);
535    }
536 
537    switch(uiFlags)
538    {
539       case GR_GDIOBJECTS:
540          {
541             Ret = (DWORD)W32Process->GDIHandleCount;
542             break;
543          }
544       case GR_USEROBJECTS:
545          {
546             Ret = (DWORD)W32Process->UserHandleCount;
547             break;
548          }
549       default:
550          {
551             EngSetLastError(ERROR_INVALID_PARAMETER);
552             break;
553          }
554    }
555 
556    ObDereferenceObject(Process);
557 
558    RETURN( Ret);
559 
560 CLEANUP:
561    TRACE("Leave NtUserGetGuiResources, ret=%lu\n",_ret_);
562    UserLeave();
563    END_CLEANUP;
564 }
565 
566 VOID FASTCALL
567 IntSetWindowState(PWND pWnd, UINT Flag)
568 {
569    UINT bit;
570    if (gptiCurrent->ppi != pWnd->head.pti->ppi) return;
571    bit = 1 << LOWORD(Flag);
572    TRACE("SWS %x\n",bit);
573    switch(HIWORD(Flag))
574    {
575       case 0:
576           pWnd->state |= bit;
577           break;
578       case 1:
579           pWnd->state2 |= bit;
580           break;
581       case 2:
582           pWnd->ExStyle2 |= bit;
583           break;
584    }
585 }
586 
587 VOID FASTCALL
588 IntClearWindowState(PWND pWnd, UINT Flag)
589 {
590    UINT bit;
591    if (gptiCurrent->ppi != pWnd->head.pti->ppi) return;
592    bit = 1 << LOWORD(Flag);
593    TRACE("CWS %x\n",bit);
594    switch(HIWORD(Flag))
595    {
596       case 0:
597           pWnd->state &= ~bit;
598           break;
599       case 1:
600           pWnd->state2 &= ~bit;
601           break;
602       case 2:
603           pWnd->ExStyle2 &= ~bit;
604           break;
605    }
606 }
607 
608 NTSTATUS FASTCALL
609 IntSafeCopyUnicodeString(PUNICODE_STRING Dest,
610                          PUNICODE_STRING Source)
611 {
612    NTSTATUS Status;
613    PWSTR Src;
614 
615    Status = MmCopyFromCaller(Dest, Source, sizeof(UNICODE_STRING));
616    if(!NT_SUCCESS(Status))
617    {
618       return Status;
619    }
620 
621    if(Dest->Length > 0x4000)
622    {
623       return STATUS_UNSUCCESSFUL;
624    }
625 
626    Src = Dest->Buffer;
627    Dest->Buffer = NULL;
628    Dest->MaximumLength = Dest->Length;
629 
630    if(Dest->Length > 0 && Src)
631    {
632       Dest->Buffer = ExAllocatePoolWithTag(PagedPool, Dest->MaximumLength, TAG_STRING);
633       if(!Dest->Buffer)
634       {
635          return STATUS_NO_MEMORY;
636       }
637 
638       Status = MmCopyFromCaller(Dest->Buffer, Src, Dest->Length);
639       if(!NT_SUCCESS(Status))
640       {
641          ExFreePoolWithTag(Dest->Buffer, TAG_STRING);
642          Dest->Buffer = NULL;
643          return Status;
644       }
645 
646 
647       return STATUS_SUCCESS;
648    }
649 
650    /* String is empty */
651    return STATUS_SUCCESS;
652 }
653 
654 NTSTATUS FASTCALL
655 IntSafeCopyUnicodeStringTerminateNULL(PUNICODE_STRING Dest,
656                                       PUNICODE_STRING Source)
657 {
658    NTSTATUS Status;
659    PWSTR Src;
660 
661    Status = MmCopyFromCaller(Dest, Source, sizeof(UNICODE_STRING));
662    if(!NT_SUCCESS(Status))
663    {
664       return Status;
665    }
666 
667    if(Dest->Length > 0x4000)
668    {
669       return STATUS_UNSUCCESSFUL;
670    }
671 
672    Src = Dest->Buffer;
673    Dest->Buffer = NULL;
674    Dest->MaximumLength = 0;
675 
676    if(Dest->Length > 0 && Src)
677    {
678       Dest->MaximumLength = Dest->Length + sizeof(WCHAR);
679       Dest->Buffer = ExAllocatePoolWithTag(PagedPool, Dest->MaximumLength, TAG_STRING);
680       if(!Dest->Buffer)
681       {
682          return STATUS_NO_MEMORY;
683       }
684 
685       Status = MmCopyFromCaller(Dest->Buffer, Src, Dest->Length);
686       if(!NT_SUCCESS(Status))
687       {
688          ExFreePoolWithTag(Dest->Buffer, TAG_STRING);
689          Dest->Buffer = NULL;
690          return Status;
691       }
692 
693       /* Make sure the string is null-terminated */
694       Src = (PWSTR)((PBYTE)Dest->Buffer + Dest->Length);
695       *Src = L'\0';
696 
697       return STATUS_SUCCESS;
698    }
699 
700    /* String is empty */
701    return STATUS_SUCCESS;
702 }
703 
704 void UserDbgAssertThreadInfo(BOOL showCaller)
705 {
706     PTEB Teb;
707     PPROCESSINFO ppi;
708     PCLIENTINFO pci;
709     PTHREADINFO pti;
710 
711     ppi = PsGetCurrentProcessWin32Process();
712     pti = PsGetCurrentThreadWin32Thread();
713     Teb = NtCurrentTeb();
714     pci = GetWin32ClientInfo();
715 
716     ASSERT(Teb);
717     ASSERT(pti);
718     ASSERT(pti->ppi == ppi);
719     ASSERT(pti->pClientInfo == pci);
720     ASSERT(Teb->Win32ThreadInfo == pti);
721     ASSERT(pci->ppi == ppi);
722     ASSERT(pci->fsHooks == pti->fsHooks);
723     ASSERT(pci->ulClientDelta == DesktopHeapGetUserDelta());
724     if (pti->pcti && pci->pDeskInfo)
725         ASSERT(pci->pClientThreadInfo == (PVOID)((ULONG_PTR)pti->pcti - pci->ulClientDelta));
726     //if (pti->pcti && IsListEmpty(&pti->SentMessagesListHead))
727     //    ASSERT((pti->pcti->fsChangeBits & QS_SENDMESSAGE) == 0);
728     if (pti->KeyboardLayout)
729         ASSERT(pci->hKL == pti->KeyboardLayout->hkl);
730     if(pti->rpdesk != NULL)
731         ASSERT(pti->pDeskInfo == pti->rpdesk->pDeskInfo);
732 
733     /*too bad we still get this assertion*/
734 
735     // Why? Not all flags are passed to the user and doing so could crash the system........
736 
737     /* ASSERT(pci->dwTIFlags == pti->TIF_flags); */
738 /*    if(pci->dwTIFlags != pti->TIF_flags)
739     {
740         ERR("pci->dwTIFlags(0x%x) doesn't match pti->TIF_flags(0x%x)\n", pci->dwTIFlags, pti->TIF_flags);
741         if(showCaller)
742         {
743             DbgPrint("Caller:\n");
744             KeRosDumpStackFrames(NULL, 10);
745         }
746         pci->dwTIFlags = pti->TIF_flags;
747     }
748 */
749 }
750 
751 void
752 NTAPI
753 UserDbgPreServiceHook(ULONG ulSyscallId, PULONG_PTR pulArguments)
754 {
755     UserDbgAssertThreadInfo(FALSE);
756 }
757 
758 ULONG_PTR
759 NTAPI
760 UserDbgPostServiceHook(ULONG ulSyscallId, ULONG_PTR ulResult)
761 {
762     /* Make sure that the first syscall is NtUserInitialize */
763     /* too bad this fails */
764     // ASSERT(gpepCSRSS);
765 
766     UserDbgAssertThreadInfo(TRUE);
767 
768     return ulResult;
769 }
770 
771 
772 PPROCESSINFO
773 GetW32ProcessInfo(VOID)
774 {
775     return (PPROCESSINFO)PsGetCurrentProcessWin32Process();
776 }
777 
778 PTHREADINFO
779 GetW32ThreadInfo(VOID)
780 {
781     UserDbgAssertThreadInfo(TRUE);
782     return (PTHREADINFO)PsGetCurrentThreadWin32Thread();
783 }
784 
785 
786 NTSTATUS
787 GetProcessLuid(
788     IN PETHREAD Thread OPTIONAL,
789     IN PEPROCESS Process OPTIONAL,
790     OUT PLUID Luid)
791 {
792     NTSTATUS Status;
793     PACCESS_TOKEN Token = NULL;
794     SECURITY_IMPERSONATION_LEVEL ImpersonationLevel;
795     BOOLEAN CopyOnOpen, EffectiveOnly;
796 
797     if (Thread && Process)
798         return STATUS_INVALID_PARAMETER;
799 
800     /* If nothing has been specified, use the current thread */
801     if (!Thread && !Process)
802         Thread = PsGetCurrentThread();
803 
804     if (Thread)
805     {
806         /* Use a thread token */
807         ASSERT(!Process);
808         Token = PsReferenceImpersonationToken(Thread,
809                                               &CopyOnOpen,
810                                               &EffectiveOnly,
811                                               &ImpersonationLevel);
812 
813         /* If we don't have a thread token, use a process token */
814         if (!Token)
815             Process = PsGetThreadProcess(Thread);
816     }
817     if (!Token && Process)
818     {
819         /* Use a process token */
820         Token = PsReferencePrimaryToken(Process);
821 
822         /* If we don't have a token, fail */
823         if (!Token)
824             return STATUS_NO_TOKEN;
825     }
826     ASSERT(Token);
827 
828     /* Query the LUID */
829     Status = SeQueryAuthenticationIdToken(Token, Luid);
830 
831     /* Get rid of the token and return */
832     ObDereferenceObject(Token);
833     return Status;
834 }
835 
836 /* EOF */
837