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![Giannis Adamopoulos](/assets/img/avatar_default.png)
- load gpsi->dtCaretBlink and g_PaintDesktopVersion in sysparams.c - Rename IntGdiGetLanguageID to UserGetLanguageID - Remove some unused functions and definitions svn path=/trunk/; revision=55439
537 lines
14 KiB
C
537 lines
14 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS Win32k subsystem
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* PURPOSE: General input functions
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* FILE: subsystems/win32/win32k/ntuser/input.c
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* PROGRAMERS: Casper S. Hornstrup (chorns@users.sourceforge.net)
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* Rafal Harabien (rafalh@reactos.org)
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*/
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#include <win32k.h>
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DBG_DEFAULT_CHANNEL(UserInput);
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/* GLOBALS *******************************************************************/
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PTHREADINFO ptiRawInput;
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PTHREADINFO ptiKeyboard;
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PTHREADINFO ptiMouse;
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PKTIMER MasterTimer = NULL;
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PATTACHINFO gpai = NULL;
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HANDLE ghKeyboardDevice;
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static DWORD LastInputTick = 0;
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static HANDLE ghMouseDevice;
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/* FUNCTIONS *****************************************************************/
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/*
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* IntLastInputTick
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*
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* Updates or gets last input tick count
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*/
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static DWORD FASTCALL
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IntLastInputTick(BOOL bUpdate)
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{
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if (bUpdate)
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{
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LARGE_INTEGER TickCount;
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KeQueryTickCount(&TickCount);
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LastInputTick = MsqCalculateMessageTime(&TickCount);
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if (gpsi) gpsi->dwLastRITEventTickCount = LastInputTick;
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}
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return LastInputTick;
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}
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/*
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* DoTheScreenSaver
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*
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* Check if scrensaver should be started and sends message to SAS window
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*/
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VOID FASTCALL
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DoTheScreenSaver(VOID)
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{
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LARGE_INTEGER TickCount;
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DWORD Test, TO;
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if (gspv.iScrSaverTimeout > 0) // Zero means Off.
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{
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KeQueryTickCount(&TickCount);
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Test = MsqCalculateMessageTime(&TickCount);
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Test = Test - LastInputTick;
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TO = 1000 * gspv.iScrSaverTimeout;
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if (Test > TO)
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{
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TRACE("Screensaver Message Start! Tick %d Timeout %d \n", Test, gspv.iScrSaverTimeout);
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if (ppiScrnSaver) // We are or we are not the screensaver, prevent reentry...
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{
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if (!(ppiScrnSaver->W32PF_flags & W32PF_IDLESCREENSAVER))
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{
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ppiScrnSaver->W32PF_flags |= W32PF_IDLESCREENSAVER;
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ERR("Screensaver is Idle\n");
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}
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}
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else
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{
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PUSER_MESSAGE_QUEUE ForegroundQueue = IntGetFocusMessageQueue();
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if (ForegroundQueue && ForegroundQueue->ActiveWindow)
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UserPostMessage(hwndSAS, WM_LOGONNOTIFY, LN_START_SCREENSAVE, 1); // lParam 1 == Secure
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else
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UserPostMessage(hwndSAS, WM_LOGONNOTIFY, LN_START_SCREENSAVE, 0);
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}
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}
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}
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}
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/*
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* OpenInputDevice
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*
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* Opens input device for asynchronous access
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*/
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static
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NTSTATUS NTAPI
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OpenInputDevice(PHANDLE pHandle, PFILE_OBJECT *ppObject, CONST WCHAR *pszDeviceName)
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{
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UNICODE_STRING DeviceName;
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OBJECT_ATTRIBUTES ObjectAttributes;
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NTSTATUS Status;
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IO_STATUS_BLOCK Iosb;
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RtlInitUnicodeString(&DeviceName, pszDeviceName);
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InitializeObjectAttributes(&ObjectAttributes,
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&DeviceName,
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0,
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NULL,
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NULL);
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Status = ZwOpenFile(pHandle,
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FILE_ALL_ACCESS,
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&ObjectAttributes,
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&Iosb,
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0,
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0);
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if (NT_SUCCESS(Status) && ppObject)
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{
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Status = ObReferenceObjectByHandle(*pHandle, SYNCHRONIZE, NULL, KernelMode, (PVOID*)ppObject, NULL);
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ASSERT(NT_SUCCESS(Status));
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}
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return Status;
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}
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/*
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* RawInputThreadMain
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*
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* Reads data from input devices and supports win32 timers
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*/
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VOID NTAPI
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RawInputThreadMain()
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{
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NTSTATUS MouStatus = STATUS_UNSUCCESSFUL, KbdStatus = STATUS_UNSUCCESSFUL, Status;
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IO_STATUS_BLOCK MouIosb, KbdIosb;
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PFILE_OBJECT pKbdDevice, pMouDevice;
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LARGE_INTEGER ByteOffset;
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//LARGE_INTEGER WaitTimeout;
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PVOID WaitObjects[3], pSignaledObject = NULL;
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ULONG cWaitObjects = 0, cMaxWaitObjects = 1;
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MOUSE_INPUT_DATA MouseInput;
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KEYBOARD_INPUT_DATA KeyInput;
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ByteOffset.QuadPart = (LONGLONG)0;
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//WaitTimeout.QuadPart = (LONGLONG)(-10000000);
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ptiRawInput = PsGetCurrentThreadWin32Thread();
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ptiRawInput->TIF_flags |= TIF_SYSTEMTHREAD;
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TRACE("Raw Input Thread 0x%x\n", ptiRawInput);
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KeSetPriorityThread(&PsGetCurrentThread()->Tcb,
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LOW_REALTIME_PRIORITY + 3);
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UserEnterExclusive();
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StartTheTimers();
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UserLeave();
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for(;;)
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{
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if (!ghMouseDevice)
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{
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/* Check if mouse device already exists */
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Status = OpenInputDevice(&ghMouseDevice, &pMouDevice, L"\\Device\\PointerClass0" );
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if (NT_SUCCESS(Status))
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{
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++cMaxWaitObjects;
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TRACE("Mouse connected!\n");
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}
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}
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if (!ghKeyboardDevice)
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{
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/* Check if keyboard device already exists */
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Status = OpenInputDevice(&ghKeyboardDevice, &pKbdDevice, L"\\Device\\KeyboardClass0");
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if (NT_SUCCESS(Status))
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{
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++cMaxWaitObjects;
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TRACE("Keyboard connected!\n");
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}
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}
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/* Reset WaitHandles array */
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cWaitObjects = 0;
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WaitObjects[cWaitObjects++] = MasterTimer;
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if (ghMouseDevice)
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{
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/* Try to read from mouse if previous reading is not pending */
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if (MouStatus != STATUS_PENDING)
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{
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MouStatus = ZwReadFile(ghMouseDevice,
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NULL,
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NULL,
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NULL,
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&MouIosb,
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&MouseInput,
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sizeof(MOUSE_INPUT_DATA),
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&ByteOffset,
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NULL);
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}
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if (MouStatus == STATUS_PENDING)
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WaitObjects[cWaitObjects++] = &pMouDevice->Event;
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}
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if (ghKeyboardDevice)
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{
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/* Try to read from keyboard if previous reading is not pending */
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if (KbdStatus != STATUS_PENDING)
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{
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KbdStatus = ZwReadFile(ghKeyboardDevice,
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NULL,
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NULL,
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NULL,
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&KbdIosb,
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&KeyInput,
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sizeof(KEYBOARD_INPUT_DATA),
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&ByteOffset,
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NULL);
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}
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if (KbdStatus == STATUS_PENDING)
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WaitObjects[cWaitObjects++] = &pKbdDevice->Event;
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}
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/* If all objects are pending, wait for them */
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if (cWaitObjects == cMaxWaitObjects)
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{
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Status = KeWaitForMultipleObjects(cWaitObjects,
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WaitObjects,
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WaitAny,
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UserRequest,
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KernelMode,
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TRUE,
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NULL,//&WaitTimeout,
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NULL);
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if (Status >= STATUS_WAIT_0 && Status < STATUS_WAIT_0 + cWaitObjects)
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{
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/* Some device has finished reading */
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pSignaledObject = WaitObjects[Status - STATUS_WAIT_0];
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/* Check if it is mouse or keyboard and update status */
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if (pSignaledObject == &pMouDevice->Event)
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MouStatus = MouIosb.Status;
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else if (pSignaledObject == &pKbdDevice->Event)
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KbdStatus = KbdIosb.Status;
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else if (pSignaledObject == MasterTimer)
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{
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ProcessTimers();
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}
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else ASSERT(FALSE);
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}
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}
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/* Have we successed reading from mouse? */
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if (NT_SUCCESS(MouStatus) && MouStatus != STATUS_PENDING)
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{
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TRACE("MouseEvent\n");
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/* Set LastInputTick */
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IntLastInputTick(TRUE);
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/* Process data */
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UserEnterExclusive();
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UserProcessMouseInput(&MouseInput);
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UserLeave();
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}
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else if (MouStatus != STATUS_PENDING)
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ERR("Failed to read from mouse: %x.\n", MouStatus);
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/* Have we successed reading from keyboard? */
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if (NT_SUCCESS(KbdStatus) && KbdStatus != STATUS_PENDING)
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{
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TRACE("KeyboardEvent: %s %04x\n",
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(KeyInput.Flags & KEY_BREAK) ? "up" : "down",
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KeyInput.MakeCode);
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/* Set LastInputTick */
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IntLastInputTick(TRUE);
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/* Process data */
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UserEnterExclusive();
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UserProcessKeyboardInput(&KeyInput);
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UserLeave();
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}
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else if (KbdStatus != STATUS_PENDING)
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ERR("Failed to read from keyboard: %x.\n", KbdStatus);
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}
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ERR("Raw Input Thread Exit!\n");
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}
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/*
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* CreateSystemThreads
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*
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* Called form dedicated thread in CSRSS. RIT is started in context of this
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* thread because it needs valid Win32 process with TEB initialized
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*/
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DWORD NTAPI
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CreateSystemThreads(UINT Type)
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{
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UserLeave();
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switch (Type)
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{
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case 0: RawInputThreadMain(); break;
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default: ERR("Wrong type: %x\n", Type);
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}
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UserEnterShared();
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return 0;
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}
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/*
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* InitInputImpl
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*
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* Inits input implementation
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*/
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INIT_FUNCTION
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NTSTATUS
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NTAPI
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InitInputImpl(VOID)
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{
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MasterTimer = ExAllocatePoolWithTag(NonPagedPool, sizeof(KTIMER), USERTAG_SYSTEM);
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if (!MasterTimer)
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{
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ERR("Failed to allocate memory\n");
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ASSERT(FALSE);
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return STATUS_UNSUCCESSFUL;
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}
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KeInitializeTimer(MasterTimer);
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return STATUS_SUCCESS;
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}
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/*
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* CleanupInputImp
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*
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* Cleans input implementation
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*/
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NTSTATUS FASTCALL
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CleanupInputImp(VOID)
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{
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return STATUS_SUCCESS;
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}
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BOOL FASTCALL
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IntBlockInput(PTHREADINFO pti, BOOL BlockIt)
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{
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PTHREADINFO OldBlock;
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ASSERT(pti);
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if(!pti->rpdesk || ((pti->TIF_flags & TIF_INCLEANUP) && BlockIt))
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{
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/*
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* Fail blocking if exiting the thread
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*/
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return FALSE;
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}
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/*
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* FIXME: Check access rights of the window station
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* e.g. services running in the service window station cannot block input
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*/
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if(!ThreadHasInputAccess(pti) ||
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!IntIsActiveDesktop(pti->rpdesk))
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{
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EngSetLastError(ERROR_ACCESS_DENIED);
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return FALSE;
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}
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ASSERT(pti->rpdesk);
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OldBlock = pti->rpdesk->BlockInputThread;
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if(OldBlock)
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{
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if(OldBlock != pti)
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{
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EngSetLastError(ERROR_ACCESS_DENIED);
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return FALSE;
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}
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pti->rpdesk->BlockInputThread = (BlockIt ? pti : NULL);
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return OldBlock == NULL;
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}
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pti->rpdesk->BlockInputThread = (BlockIt ? pti : NULL);
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return OldBlock == NULL;
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}
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BOOL
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APIENTRY
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NtUserBlockInput(
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BOOL BlockIt)
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{
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BOOL ret;
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TRACE("Enter NtUserBlockInput\n");
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UserEnterExclusive();
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ret = IntBlockInput(PsGetCurrentThreadWin32Thread(), BlockIt);
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UserLeave();
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TRACE("Leave NtUserBlockInput, ret=%i\n", ret);
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return ret;
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}
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BOOL FASTCALL
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UserAttachThreadInput(PTHREADINFO pti, PTHREADINFO ptiTo, BOOL fAttach)
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{
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PATTACHINFO pai;
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/* Can not be the same thread. */
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if (pti == ptiTo) return FALSE;
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/* Do not attach to system threads or between different desktops. */
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if (pti->TIF_flags & TIF_DONTATTACHQUEUE ||
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ptiTo->TIF_flags & TIF_DONTATTACHQUEUE ||
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pti->rpdesk != ptiTo->rpdesk)
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return FALSE;
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/* If Attach set, allocate and link. */
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if (fAttach)
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{
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pai = ExAllocatePoolWithTag(PagedPool, sizeof(ATTACHINFO), USERTAG_ATTACHINFO);
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if (!pai) return FALSE;
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pai->paiNext = gpai;
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pai->pti1 = pti;
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pai->pti2 = ptiTo;
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gpai = pai;
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}
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else /* If clear, unlink and free it. */
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{
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PATTACHINFO paiprev = NULL;
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if (!gpai) return FALSE;
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pai = gpai;
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/* Search list and free if found or return false. */
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do
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{
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if (pai->pti2 == ptiTo && pai->pti1 == pti) break;
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paiprev = pai;
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pai = pai->paiNext;
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} while (pai);
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if (!pai) return FALSE;
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if (paiprev) paiprev->paiNext = pai->paiNext;
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ExFreePoolWithTag(pai, USERTAG_ATTACHINFO);
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}
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return TRUE;
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}
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/*
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* NtUserSendInput
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*
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* Generates input events from software
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*/
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UINT
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APIENTRY
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NtUserSendInput(
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UINT nInputs,
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LPINPUT pInput,
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INT cbSize)
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{
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PTHREADINFO pti;
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UINT uRet = 0;
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TRACE("Enter NtUserSendInput\n");
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UserEnterExclusive();
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pti = PsGetCurrentThreadWin32Thread();
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ASSERT(pti);
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if (!pti->rpdesk)
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{
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goto cleanup;
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}
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if (!nInputs || !pInput || cbSize != sizeof(INPUT))
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{
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EngSetLastError(ERROR_INVALID_PARAMETER);
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goto cleanup;
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}
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/*
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* FIXME: Check access rights of the window station
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* e.g. services running in the service window station cannot block input
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*/
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if (!ThreadHasInputAccess(pti) ||
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!IntIsActiveDesktop(pti->rpdesk))
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{
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EngSetLastError(ERROR_ACCESS_DENIED);
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goto cleanup;
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}
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while (nInputs--)
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{
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INPUT SafeInput;
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NTSTATUS Status;
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Status = MmCopyFromCaller(&SafeInput, pInput++, sizeof(INPUT));
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if (!NT_SUCCESS(Status))
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{
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SetLastNtError(Status);
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goto cleanup;
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}
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switch (SafeInput.type)
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{
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case INPUT_MOUSE:
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if (UserSendMouseInput(&SafeInput.mi, TRUE))
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uRet++;
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break;
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case INPUT_KEYBOARD:
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if (UserSendKeyboardInput(&SafeInput.ki, TRUE))
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uRet++;
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break;
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case INPUT_HARDWARE:
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FIXME("INPUT_HARDWARE not supported!");
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break;
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default:
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ERR("SendInput(): Invalid input type: 0x%x\n", SafeInput.type);
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break;
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}
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}
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cleanup:
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TRACE("Leave NtUserSendInput, ret=%i\n", uRet);
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UserLeave();
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return uRet;
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}
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/* EOF */
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