ntuser.h File Reference

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Go to the source code of this file.

Classes
struct	_TL

Macros
#define	DECLARE_RETURN(type)   type _ret_
#define	RETURN(value)   { _ret_ = value; goto _cleanup_; }
#define	CLEANUP   /*unreachable*/ ASSERT(FALSE); _cleanup_
#define	END_CLEANUP   return _ret_;
#define	UserEnterCo   UserEnterExclusive
#define	UserLeaveCo   UserLeave

Typedefs
typedef VOID(*	TL_FN_FREE) (PVOID)
typedef struct _TL	TL
typedef struct _TL *	PTL

Functions
	CODE_SEG ("INIT") NTSTATUS NTAPI InitUserImpl(VOID)
VOID FASTCALL	CleanupUserImpl (VOID)
VOID FASTCALL	UserEnterShared (VOID)
VOID FASTCALL	UserEnterExclusive (VOID)
VOID FASTCALL	UserLeave (VOID)
BOOL FASTCALL	UserIsEntered (VOID)
BOOL FASTCALL	UserIsEnteredExclusive (VOID)
DWORD FASTCALL	UserGetLanguageToggle (VOID)
	_Success_ (return !=FALSE) BOOL NTAPI RegReadUserSetting(_In_z_ PCWSTR pwszKeyName
_In_z_ PCWSTR _In_ ULONG	_Out_writes_bytes_ (cjDataSize) _When_(ulType
_In_z_ PCWSTR _In_ ULONG	_In_reads_bytes_ (cjDataSize) const VOID *pvData
PGRAPHICS_DEVICE NTAPI	InitDisplayDriver (IN PWSTR pwszDeviceName, IN PWSTR pwszRegKey)

Variables
PSERVERINFO	gpsi
PTHREADINFO	gptiCurrent
PPROCESSINFO	gppiList
PPROCESSINFO	ppiScrnSaver
PPROCESSINFO	gppiInputProvider
BOOL	g_AlwaysDisplayVersion
ATOM	gaGuiConsoleWndClass
ATOM	AtomDDETrack
ATOM	AtomQOS
ATOM	AtomImeLevel
ERESOURCE	UserLock
_In_z_ PCWSTR	pwszValueName
_In_z_ PCWSTR _In_ ULONG	ulType
_In_z_ PCWSTR _In_ ULONG _Post_z_ PVOID	pvData
_In_z_ PCWSTR _In_ ULONG _Post_z_ PVOID _In_ ULONG	cjDataSize

Macro Definition Documentation

CLEANUP

#define CLEANUP   /*unreachable*/ ASSERT(FALSE); _cleanup_

Definition at line 5 of file ntuser.h.

DECLARE_RETURN

#define DECLARE_RETURN

(

type

)

type _ret_

Definition at line 3 of file ntuser.h.

END_CLEANUP

#define END_CLEANUP   return _ret_;

Definition at line 6 of file ntuser.h.

RETURN

#define RETURN

(

value

)

{ _ret_ = value; goto _cleanup_; }

Definition at line 4 of file ntuser.h.

UserEnterCo

#define UserEnterCo   UserEnterExclusive

Definition at line 8 of file ntuser.h.

UserLeaveCo

#define UserLeaveCo   UserLeave

Definition at line 9 of file ntuser.h.

Typedef Documentation

PTL

typedef struct _TL * PTL

TL

typedef struct _TL TL

TL_FN_FREE

typedef VOID(* TL_FN_FREE) (PVOID)

Definition at line 11 of file ntuser.h.

Function Documentation

_In_reads_bytes_()

_In_z_ PCWSTR _In_ ULONG _In_reads_bytes_

(

cjDataSize

)

const

_Out_writes_bytes_()

_In_z_ PCWSTR _In_ ULONG _Out_writes_bytes_

(

cjDataSize

)

_Success_()

_Success_

(

return !

= FALSE

)

Definition at line 1042 of file fsctrl.c.

{
    PLIST_ENTRY Link;
 
    PVPB Vpb = Vcb->Vpb;
    PVPB OldVpb;
 
    BOOLEAN Remount = FALSE;
 
    PAGED_CODE();
 
    UNREFERENCED_PARAMETER( IrpContext );
 
    //
    //  Check whether we are looking for a device only Mvcb.
    //
 
    for (Link = CdData.VcbQueue.Flink;
         Link != &CdData.VcbQueue;
         Link = Link->Flink) {
 
        *OldVcb = CONTAINING_RECORD( Link, VCB, VcbLinks );
 
        //
        //  Skip ourselves.
        //
 
        if (Vcb == *OldVcb) { continue; }
 
        //
        //  Look at the Vpb and state of the previous Vcb.
        //
 
        OldVpb = (*OldVcb)->Vpb;
 
        if ((OldVpb != Vpb) &&
            (OldVpb->RealDevice == Vpb->RealDevice) &&
            ((*OldVcb)->VcbCondition == VcbNotMounted)) {
 
            //
            //  If the current disk is a raw disk then it can match a previous music or
            //  raw disk.
            //
 
            if (FlagOn( Vcb->VcbState, VCB_STATE_AUDIO_DISK)) {
 
                if (FlagOn( (*OldVcb)->VcbState, VCB_STATE_AUDIO_DISK )) {
 
                    //
                    //  If we have both TOC then fail the remount if the lengths
                    //  are different or they don't match.
                    //
 
                    if ((Vcb->TocLength != (*OldVcb)->TocLength) ||
                        ((Vcb->TocLength != 0) &&
                         !RtlEqualMemory( Vcb->CdromToc,
                                          (*OldVcb)->CdromToc,
                                          Vcb->TocLength ))) {
 
                        continue;
                    }
 
                    Remount = TRUE;
                    break;
                }
 
            //
            //  The current disk is not a raw disk.  Go ahead and compare
            //  serial numbers, volume label and TOC.
            //
 
            }
            else if ((OldVpb->SerialNumber == Vpb->SerialNumber) &&
                     (Vcb->TocLength == (*OldVcb)->TocLength) &&
                     ((Vcb->TocLength == 0) || RtlEqualMemory( Vcb->CdromToc,
                                                               (*OldVcb)->CdromToc,
                                                               Vcb->TocLength )) &&
                     (Vpb->VolumeLabelLength == OldVpb->VolumeLabelLength) &&
                     (RtlEqualMemory( OldVpb->VolumeLabel,
                                        Vpb->VolumeLabel,
                                        Vpb->VolumeLabelLength ))) {
                //
                //  Remember the old Vcb.  Then set the return value to
                //  TRUE and break.
                //
 
                Remount = TRUE;
                break;
            }
        }
    }
 
    return Remount;
}

CleanupUserImpl()

VOID FASTCALL CleanupUserImpl

(

VOID

)

Definition at line 229 of file ntuser.c.

{
    ExDeleteResourceLite(&UserLock);
}

CODE_SEG()

CODE_SEG

(

"INIT"

)

Definition at line 1810 of file Interface.c.

{
    UNICODE_STRING DeviceName = RTL_CONSTANT_STRING(L"\\FileSystem\\Filters\\"DRIVER_NAME);
    PDEVICE_OBJECT RawDeviceObject;
    PDEVICE_OBJECT DeviceObject;
    PFILE_OBJECT RawFileObject;
    UNICODE_STRING ObjectName;
    UNICODE_STRING SymLink;
 
    NTSTATUS Status;
 
    RtlZeroMemory(&DriverData, sizeof(DRIVER_DATA));
    DriverData.DriverObject = DriverObject;
 
    /* Save the registry key for this driver */
    DriverData.ServiceKey.Length = RegistryPath->Length;
    DriverData.ServiceKey.MaximumLength = RegistryPath->MaximumLength;
    DriverData.ServiceKey.Buffer = (PWCHAR)ExAllocatePoolWithTag(NonPagedPool,
                                                                 RegistryPath->MaximumLength,
                                                                 FM_TAG_REGISTRY_DATA);
    if (!DriverData.ServiceKey.Buffer) return STATUS_INSUFFICIENT_RESOURCES;
    RtlCopyUnicodeString(&DriverData.ServiceKey, RegistryPath);
 
    /* Do some initialization */
    ExInitializeFastMutex(&DriverData.FilterAttachLock);
 
    /* Create the main filter manager device object */
    Status = IoCreateDevice(DriverObject,
                            0,
                            &DeviceName,
                            FILE_DEVICE_DISK_FILE_SYSTEM,
                            FILE_DEVICE_SECURE_OPEN,
                            FALSE,
                            &DeviceObject);
    if (!NT_SUCCESS(Status))
    {
        DPRINT1("fltmgr IoCreateDevice failed.  Status = %X\n", Status);
        goto Cleanup;
    }
 
    /* Store a global reference so we can access from callbacks */
    DriverData.DeviceObject = DeviceObject;
 
    /* Generate the symbolic link name */
    RtlInitUnicodeString(&SymLink, L"\\??\\"DRIVER_NAME);
    Status = IoCreateSymbolicLink(&SymLink, &DeviceName);
    if (!NT_SUCCESS(Status)) goto Cleanup;
 
    /* Create the callbacks for the dispatch table, FastIo and FS callbacks */
    Status = SetupDispatchAndCallbacksTables(DriverObject);
    if (!NT_SUCCESS(Status)) goto Cleanup;
 
    /* Initialize the comms objects */
    Status = FltpSetupCommunicationObjects(DriverObject);
    if (!NT_SUCCESS(Status)) goto Cleanup;
 
    /* Register for notifications when a new file system is loaded. This also enumerates any existing file systems */
    Status = IoRegisterFsRegistrationChange(DriverObject, FltpFsNotification);
    FLT_ASSERT(Status != STATUS_DEVICE_ALREADY_ATTACHED); // Windows checks for this, I'm not sure how it can happen. Needs investigation??
    if (!NT_SUCCESS(Status))  goto Cleanup;
 
    InitializeListHead(&FilterList);
    ExInitializeResourceLite(&FilterListLock);
 
    /* IoRegisterFsRegistrationChange isn't notified about the raw  file systems, so we attach to them manually */
    RtlInitUnicodeString(&ObjectName, L"\\Device\\RawDisk");
    Status = IoGetDeviceObjectPointer(&ObjectName,
                                      FILE_READ_ATTRIBUTES,
                                      &RawFileObject,
                                      &RawDeviceObject);
    if (NT_SUCCESS(Status))
    {
        FltpFsNotification(RawDeviceObject, TRUE);
        ObDereferenceObject(RawFileObject);
    }
 
    RtlInitUnicodeString(&ObjectName, L"\\Device\\RawCdRom");
    Status = IoGetDeviceObjectPointer(&ObjectName,
                                      FILE_READ_ATTRIBUTES,
                                      &RawFileObject,
                                      &RawDeviceObject);
    if (NT_SUCCESS(Status))
    {
        FltpFsNotification(RawDeviceObject, TRUE);
        ObDereferenceObject(RawFileObject);
    }
 
    /* We're done, clear the initializing flag */
    ClearFlag(DeviceObject->Flags, DO_DEVICE_INITIALIZING);
    Status = STATUS_SUCCESS;
 
Cleanup:
 
    if (!NT_SUCCESS(Status))
    {
        if (DriverData.FastIoDispatch)
        {
            DriverObject->FastIoDispatch = NULL;
            ExFreePoolWithTag(DriverData.FastIoDispatch, FM_TAG_DISPATCH_TABLE);
        }
 
        IoDeleteSymbolicLink(&SymLink);
 
        if (DeviceObject)
            IoDeleteDevice(DeviceObject);
 
        if (DriverData.ServiceKey.Buffer)
            ExFreePoolWithTag(DriverData.ServiceKey.Buffer, FM_TAG_REGISTRY_DATA);
    }
 
    return Status;
}

InitDisplayDriver()

PGRAPHICS_DEVICE NTAPI InitDisplayDriver	(	IN PWSTR	pwszDeviceName,
		IN PWSTR	pwszRegKey
	)

Definition at line 66 of file display.c.

{
    PGRAPHICS_DEVICE pGraphicsDevice;
    UNICODE_STRING ustrDeviceName, ustrDisplayDrivers, ustrDescription;
    NTSTATUS Status;
    WCHAR awcBuffer[128];
    ULONG cbSize;
    HKEY hkey;
    DWORD dwVga;
 
    TRACE("InitDisplayDriver(%S, %S);\n",
          pwszDeviceName, pwszRegKey);
 
    /* Open the driver's registry key */
    Status = RegOpenKey(pwszRegKey, &hkey);
    if (!NT_SUCCESS(Status))
    {
        ERR("Failed to open registry key: %ls\n", pwszRegKey);
        return NULL;
    }
 
    /* Query the diplay drivers */
    cbSize = sizeof(awcBuffer) - 10;
    Status = RegQueryValue(hkey,
                           L"InstalledDisplayDrivers",
                           REG_MULTI_SZ,
                           awcBuffer,
                           &cbSize);
    if (!NT_SUCCESS(Status))
    {
        ERR("Didn't find 'InstalledDisplayDrivers', status = 0x%lx\n", Status);
        ZwClose(hkey);
        return NULL;
    }
 
    /* Initialize the UNICODE_STRING */
    ustrDisplayDrivers.Buffer = awcBuffer;
    ustrDisplayDrivers.MaximumLength = (USHORT)cbSize;
    ustrDisplayDrivers.Length = (USHORT)cbSize;
 
    /* Set Buffer for description and size of remaining buffer */
    ustrDescription.Buffer = awcBuffer + (cbSize / sizeof(WCHAR));
    cbSize = sizeof(awcBuffer) - cbSize;
 
    /* Query the device string */
    Status = RegQueryValue(hkey,
                           L"Device Description",
                           REG_SZ,
                           ustrDescription.Buffer,
                           &cbSize);
    if (NT_SUCCESS(Status))
    {
        ustrDescription.MaximumLength = (USHORT)cbSize;
        ustrDescription.Length = (USHORT)cbSize;
    }
    else
    {
        RtlInitUnicodeString(&ustrDescription, L"<unknown>");
    }
 
    /* Query if this is a VGA compatible driver */
    cbSize = sizeof(DWORD);
    Status = RegQueryValue(hkey, L"VgaCompatible", REG_DWORD, &dwVga, &cbSize);
    if (!NT_SUCCESS(Status)) dwVga = 0;
 
    /* Close the registry key */
    ZwClose(hkey);
 
    /* Register the device with GDI */
    RtlInitUnicodeString(&ustrDeviceName, pwszDeviceName);
    pGraphicsDevice = EngpRegisterGraphicsDevice(&ustrDeviceName,
                                                 &ustrDisplayDrivers,
                                                 &ustrDescription);
    if (pGraphicsDevice && dwVga)
    {
        pGraphicsDevice->StateFlags |= DISPLAY_DEVICE_VGA_COMPATIBLE;
    }
 
    return pGraphicsDevice;
}

Referenced by EngpUpdateGraphicsDeviceList().

UserEnterExclusive()

VOID FASTCALL UserEnterExclusive

(

VOID

)

Definition at line 242 of file ntuser.c.

{
    ASSERT_NOGDILOCKS();
    KeEnterCriticalRegion();
    ExAcquireResourceExclusiveLite(&UserLock, TRUE);
    gptiCurrent = PsGetCurrentThreadWin32Thread();
}

Referenced by _Success_(), co_IntGetPeekMessage(), DesktopThreadMain(), DriverEntry(), EngCreateWnd(), EngDeleteWnd(), IntDesktopObjectClose(), IntDesktopObjectOpen(), NtGdiSetPixelFormat(), NtGdiSwapBuffers(), NtGdiUpdateColors(), NtUserActivateKeyboardLayout(), NtUserAlterWindowStyle(), NtUserAssociateInputContext(), NtUserAttachThreadInput(), NtUserBeginPaint(), NtUserBitBltSysBmp(), NtUserBlockInput(), NtUserBuildHimcList(), NtUserBuildHwndList(), NtUserCalcMenuBar(), NtUserCallHwnd(), NtUserCallHwndLock(), NtUserCallHwndParam(), NtUserCallHwndParamLock(), NtUserCallMsgFilter(), NtUserCallNextHookEx(), NtUserCallNoParam(), NtUserCallOneParam(), NtUserCallTwoParam(), NtUserChangeClipboardChain(), NtUserChangeDisplaySettings(), NtUserCheckImeHotKey(), NtUserCheckMenuItem(), NtUserChildWindowFromPointEx(), NtUserClipCursor(), NtUserCloseClipboard(), NtUserCloseDesktop(), NtUserConsoleControl(), NtUserConvertMemHandle(), NtUserCreateAcceleratorTable(), NtUserCreateCaret(), NtUserCreateDesktop(), NtUserCreateInputContext(), NtUserCreateWindowEx(), NtUserCreateWindowStation(), NtUserDeferWindowPos(), NtUserDefSetText(), NtUserDeleteMenu(), NtUserDestroyAcceleratorTable(), NtUserDestroyCursor(), NtUserDestroyInputContext(), NtUserDestroyMenu(), NtUserDestroyWindow(), NtUserDisableThreadIme(), NtUserDispatchMessage(), NtUserDragDetect(), NtUserDrawCaptionTemp(), NtUserDrawIconEx(), NtUserDrawMenuBarTemp(), NtUserEmptyClipboard(), NtUserEnableMenuItem(), NtUserEnableScrollBar(), NtUserEndDeferWindowPosEx(), NtUserEndMenu(), NtUserEndPaint(), NtUserExcludeUpdateRgn(), NtUserFillWindow(), NtUserFlashWindowEx(), NtUserGetAncestor(), NtUserGetAsyncKeyState(), NtUserGetClassInfo(), NtUserGetControlBrush(), NtUserGetControlColor(), NtUserGetCPD(), NtUserGetDCEx(), NtUserGetForegroundWindow(), NtUserGetImeHotKey(), NtUserGetLayeredWindowAttributes(), NtUserGetMessage(), NtUserGetScrollBarInfo(), NtUserGetSystemMenu(), NtUserGetThreadDesktop(), NtUserGetThreadState(), NtUserGetTitleBarInfo(), NtUserGetUpdateRect(), NtUserGetUpdateRgn(), NtUserGetWOWClass(), NtUserHideCaret(), NtUserHiliteMenuItem(), NtUserInitialize(), NtUserInitializeClientPfnArrays(), NtUserKillTimer(), NtUserLoadKeyboardLayoutEx(), NtUserLockWorkStation(), NtUserMenuItemFromPoint(), NtUserMessageCall(), NtUserMinMaximize(), NtUserNotifyIMEStatus(), NtUserNotifyWinEvent(), NtUserOpenClipboard(), NtUserOpenInputDesktop(), NtUserPaintDesktop(), NtUserPaintMenuBar(), NtUserPeekMessage(), NtUserPostMessage(), NtUserPostThreadMessage(), NtUserPrintWindow(), NtUserQueryInformationThread(), NtUserQueryInputContext(), NtUserRedrawWindow(), NtUserRegisterClassExWOW(), NtUserRegisterHotKey(), NtUserRegisterUserApiHook(), NtUserRegisterWindowMessage(), NtUserRemoveMenu(), NtUserRemoveProp(), NtUserResolveDesktop(), NtUserScrollDC(), NtUserScrollWindowEx(), NtUserSelectPalette(), NtUserSendInput(), NtUserSetActiveWindow(), NtUserSetAppImeLevel(), NtUserSetCapture(), NtUserSetClassLong(), NtUserSetClipboardData(), NtUserSetClipboardViewer(), NtUserSetCursor(), NtUserSetCursorIconData(), NtUserSetFocus(), NtUserSetImeHotKey(), NtUserSetImeInfoEx(), NtUserSetImeOwnerWindow(), NtUserSetInformationThread(), NtUserSetInternalWindowPos(), NtUserSetKeyboardState(), NtUserSetLayeredWindowAttributes(), NtUserSetMenu(), NtUserSetMenuContextHelpId(), NtUserSetMenuDefaultItem(), NtUserSetMenuFlagRtoL(), NtUserSetParent(), NtUserSetProcessWindowStation(), NtUserSetProp(), NtUserSetScrollBarInfo(), NtUserSetScrollInfo(), NtUserSetShellWindowEx(), NtUserSetSysColors(), NtUserSetSystemCursor(), NtUserSetSystemMenu(), NtUserSetSystemTimer(), NtUserSetThreadDesktop(), NtUserSetThreadLayoutHandles(), NtUserSetThreadState(), NtUserSetTimer(), NtUserSetWindowFNID(), NtUserSetWindowLong(), NtUserSetWindowPlacement(), NtUserSetWindowPos(), NtUserSetWindowRgn(), NtUserSetWindowsHookEx(), NtUserSetWindowStationUser(), NtUserSetWindowWord(), NtUserSetWinEventHook(), NtUserShowCaret(), NtUserShowScrollBar(), NtUserShowWindow(), NtUserShowWindowAsync(), NtUserSwitchDesktop(), NtUserSystemParametersInfo(), NtUserThunkedMenuInfo(), NtUserThunkedMenuItemInfo(), NtUserToUnicodeEx(), NtUserTrackMouseEvent(), NtUserTrackPopupMenuEx(), NtUserTranslateMessage(), NtUserUnhookWindowsHookEx(), NtUserUnhookWinEvent(), NtUserUnloadKeyboardLayout(), NtUserUnregisterClass(), NtUserUnregisterHotKey(), NtUserUnregisterUserApiHook(), NtUserUpdateInputContext(), NtUserUpdateLayeredWindow(), NtUserUpdatePerUserSystemParameters(), NtUserValidateHandleSecure(), NtUserWaitForInputIdle(), NtUserWaitMessage(), NtUserWindowFromPoint(), RawInputThreadMain(), UserGetDesktopDC(), UserGhostThreadEntry(), Win32kProcessCallback(), and Win32kThreadCallback().

UserEnterShared()

VOID FASTCALL UserEnterShared

(

VOID

)

Definition at line 235 of file ntuser.c.

{
    KeEnterCriticalRegion();
    ExAcquireResourceSharedLite(&UserLock, TRUE);
}

Referenced by NtUserBuildPropList(), NtUserCallHwnd(), NtUserCopyAcceleratorTable(), NtUserCountClipboardFormats(), NtUserCreateLocalMemHandle(), NtUserEnumDisplayDevices(), NtUserEnumDisplayMonitors(), NtUserEnumDisplaySettings(), NtUserFindExistingCursorIcon(), NtUserFindWindowEx(), NtUserGetAppImeLevel(), NtUserGetCaretBlinkTime(), NtUserGetCaretPos(), NtUserGetClassName(), NtUserGetClipboardData(), NtUserGetClipboardFormatName(), NtUserGetClipboardOwner(), NtUserGetClipboardSequenceNumber(), NtUserGetClipboardViewer(), NtUserGetClipCursor(), NtUserGetComboBoxInfo(), NtUserGetCursorFrameInfo(), NtUserGetCursorInfo(), NtUserGetDoubleClickTime(), NtUserGetGuiResources(), NtUserGetGUIThreadInfo(), NtUserGetIconSize(), NtUserGetImeInfoEx(), NtUserGetInternalWindowPos(), NtUserGetKeyboardLayoutList(), NtUserGetKeyboardLayoutName(), NtUserGetKeyboardState(), NtUserGetKeyNameText(), NtUserGetKeyState(), NtUserGetListBoxInfo(), NtUserGetMenuBarInfo(), NtUserGetMenuIndex(), NtUserGetMenuItemRect(), NtUserGetMonitorInfo(), NtUserGetMouseMovePointsEx(), NtUserGetOpenClipboardWindow(), NtUserGetPriorityClipboardFormat(), NtUserGetThreadState(), NtUserGetWindowPlacement(), NtUserInternalGetWindowText(), NtUserIsClipboardFormatAvailable(), NtUserMapVirtualKeyEx(), NtUserMonitorFromPoint(), NtUserMonitorFromRect(), NtUserMonitorFromWindow(), NtUserProcessConnect(), NtUserQueryWindow(), NtUserRealChildWindowFromPoint(), NtUserSBGetParms(), NtUserTranslateAccelerator(), NtUserValidateTimerCallback(), NtUserVkKeyScanEx(), and UserSystemThreadProc().

UserGetLanguageToggle()

DWORD FASTCALL UserGetLanguageToggle

(

VOID

)

Definition at line 81 of file misc.c.

{
    NTSTATUS Status;
    DWORD dwValue = 0;
 
    Status = RegReadUserSetting(L"Keyboard Layout\\Toggle", L"Layout Hotkey", REG_SZ, &dwValue, sizeof(dwValue));
    if (NT_SUCCESS(Status))
    {
        dwValue = atoi((char *)&dwValue);
        TRACE("Layout Hotkey %d\n",dwValue);
    }
    return dwValue;
}

Referenced by SpiGetSet(), and SpiUpdatePerUserSystemParameters().

UserIsEntered()

BOOL FASTCALL UserIsEntered

(

VOID

)

Definition at line 218 of file ntuser.c.

{
    return ExIsResourceAcquiredExclusiveLite(&UserLock) ||
           ExIsResourceAcquiredSharedLite(&UserLock);
}

Referenced by IntGetProp(), NtGdiUpdateColors(), UserGetProp(), and UserLeave().

UserIsEnteredExclusive()

BOOL FASTCALL UserIsEnteredExclusive

(

VOID

)

Definition at line 224 of file ntuser.c.

{
    return ExIsResourceAcquiredExclusiveLite(&UserLock);
}

Referenced by _Success_(), DesktopHeapAlloc(), DesktopHeapFree(), DesktopHeapReAlloc(), IntCreateDesktop(), IntDestroyMenu(), IntDestroyMenuObject(), IntGetWindowProc(), IntRemoveHook(), IntResolveDesktop(), UserCreateSystemThread(), UserHeapAlloc(), UserHeapFree(), UserHeapReAlloc(), and UserRemoveWindowProps().

UserLeave()

VOID FASTCALL UserLeave

(

VOID

)

Definition at line 251 of file ntuser.c.

{
    ASSERT_NOGDILOCKS();
    ASSERT(UserIsEntered());
    ExReleaseResourceLite(&UserLock);
    KeLeaveCriticalRegion();
}

Referenced by _Success_(), co_IntGetPeekMessage(), DesktopThreadMain(), DriverEntry(), EngCreateWnd(), EngDeleteWnd(), IntDesktopObjectClose(), IntDesktopObjectOpen(), NtGdiSetPixelFormat(), NtGdiSwapBuffers(), NtGdiUpdateColors(), NtUserActivateKeyboardLayout(), NtUserAlterWindowStyle(), NtUserAssociateInputContext(), NtUserAttachThreadInput(), NtUserBeginPaint(), NtUserBitBltSysBmp(), NtUserBlockInput(), NtUserBuildHimcList(), NtUserBuildHwndList(), NtUserBuildPropList(), NtUserCalcMenuBar(), NtUserCallHwnd(), NtUserCallHwndLock(), NtUserCallHwndParam(), NtUserCallHwndParamLock(), NtUserCallMsgFilter(), NtUserCallNextHookEx(), NtUserCallNoParam(), NtUserCallOneParam(), NtUserCallTwoParam(), NtUserChangeClipboardChain(), NtUserChangeDisplaySettings(), NtUserCheckImeHotKey(), NtUserCheckMenuItem(), NtUserChildWindowFromPointEx(), NtUserClipCursor(), NtUserCloseClipboard(), NtUserCloseDesktop(), NtUserConsoleControl(), NtUserConvertMemHandle(), NtUserCopyAcceleratorTable(), NtUserCountClipboardFormats(), NtUserCreateAcceleratorTable(), NtUserCreateCaret(), NtUserCreateDesktop(), NtUserCreateInputContext(), NtUserCreateLocalMemHandle(), NtUserCreateWindowEx(), NtUserCreateWindowStation(), NtUserDeferWindowPos(), NtUserDefSetText(), NtUserDeleteMenu(), NtUserDestroyAcceleratorTable(), NtUserDestroyCursor(), NtUserDestroyInputContext(), NtUserDestroyMenu(), NtUserDestroyWindow(), NtUserDisableThreadIme(), NtUserDispatchMessage(), NtUserDragDetect(), NtUserDrawCaptionTemp(), NtUserDrawIconEx(), NtUserDrawMenuBarTemp(), NtUserEmptyClipboard(), NtUserEnableMenuItem(), NtUserEnableScrollBar(), NtUserEndDeferWindowPosEx(), NtUserEndMenu(), NtUserEndPaint(), NtUserEnumDisplayDevices(), NtUserEnumDisplayMonitors(), NtUserEnumDisplaySettings(), NtUserExcludeUpdateRgn(), NtUserFillWindow(), NtUserFindExistingCursorIcon(), NtUserFindWindowEx(), NtUserFlashWindowEx(), NtUserGetAncestor(), NtUserGetAppImeLevel(), NtUserGetAsyncKeyState(), NtUserGetCaretBlinkTime(), NtUserGetCaretPos(), NtUserGetClassInfo(), NtUserGetClassName(), NtUserGetClipboardData(), NtUserGetClipboardFormatName(), NtUserGetClipboardOwner(), NtUserGetClipboardSequenceNumber(), NtUserGetClipboardViewer(), NtUserGetClipCursor(), NtUserGetComboBoxInfo(), NtUserGetControlBrush(), NtUserGetControlColor(), NtUserGetCPD(), NtUserGetCursorFrameInfo(), NtUserGetCursorInfo(), NtUserGetDCEx(), NtUserGetDoubleClickTime(), NtUserGetForegroundWindow(), NtUserGetGuiResources(), NtUserGetGUIThreadInfo(), NtUserGetIconSize(), NtUserGetImeHotKey(), NtUserGetImeInfoEx(), NtUserGetInternalWindowPos(), NtUserGetKeyboardLayoutList(), NtUserGetKeyboardLayoutName(), NtUserGetKeyboardState(), NtUserGetKeyNameText(), NtUserGetKeyState(), NtUserGetLayeredWindowAttributes(), NtUserGetListBoxInfo(), NtUserGetMenuBarInfo(), NtUserGetMenuIndex(), NtUserGetMenuItemRect(), NtUserGetMessage(), NtUserGetMonitorInfo(), NtUserGetMouseMovePointsEx(), NtUserGetOpenClipboardWindow(), NtUserGetPriorityClipboardFormat(), NtUserGetScrollBarInfo(), NtUserGetSystemMenu(), NtUserGetThreadDesktop(), NtUserGetThreadState(), NtUserGetTitleBarInfo(), NtUserGetUpdateRect(), NtUserGetUpdateRgn(), NtUserGetWindowPlacement(), NtUserGetWOWClass(), NtUserHideCaret(), NtUserHiliteMenuItem(), NtUserInitialize(), NtUserInitializeClientPfnArrays(), NtUserInternalGetWindowText(), NtUserIsClipboardFormatAvailable(), NtUserKillTimer(), NtUserLoadKeyboardLayoutEx(), NtUserLockWorkStation(), NtUserMapVirtualKeyEx(), NtUserMenuItemFromPoint(), NtUserMessageCall(), NtUserMinMaximize(), NtUserMonitorFromPoint(), NtUserMonitorFromRect(), NtUserMonitorFromWindow(), NtUserNotifyIMEStatus(), NtUserNotifyWinEvent(), NtUserOpenClipboard(), NtUserOpenInputDesktop(), NtUserPaintDesktop(), NtUserPaintMenuBar(), NtUserPeekMessage(), NtUserPostMessage(), NtUserPostThreadMessage(), NtUserPrintWindow(), NtUserProcessConnect(), NtUserQueryInformationThread(), NtUserQueryInputContext(), NtUserQueryWindow(), NtUserRealChildWindowFromPoint(), NtUserRedrawWindow(), NtUserRegisterClassExWOW(), NtUserRegisterHotKey(), NtUserRegisterUserApiHook(), NtUserRegisterWindowMessage(), NtUserRemoveMenu(), NtUserRemoveProp(), NtUserResolveDesktop(), NtUserSBGetParms(), NtUserScrollDC(), NtUserScrollWindowEx(), NtUserSelectPalette(), NtUserSendInput(), NtUserSetActiveWindow(), NtUserSetAppImeLevel(), NtUserSetCapture(), NtUserSetClassLong(), NtUserSetClipboardData(), NtUserSetClipboardViewer(), NtUserSetCursor(), NtUserSetCursorIconData(), NtUserSetFocus(), NtUserSetImeHotKey(), NtUserSetImeInfoEx(), NtUserSetImeOwnerWindow(), NtUserSetInformationThread(), NtUserSetInternalWindowPos(), NtUserSetKeyboardState(), NtUserSetLayeredWindowAttributes(), NtUserSetMenu(), NtUserSetMenuContextHelpId(), NtUserSetMenuDefaultItem(), NtUserSetMenuFlagRtoL(), NtUserSetParent(), NtUserSetProcessWindowStation(), NtUserSetProp(), NtUserSetScrollBarInfo(), NtUserSetScrollInfo(), NtUserSetShellWindowEx(), NtUserSetSysColors(), NtUserSetSystemCursor(), NtUserSetSystemMenu(), NtUserSetSystemTimer(), NtUserSetThreadDesktop(), NtUserSetThreadLayoutHandles(), NtUserSetThreadState(), NtUserSetTimer(), NtUserSetWindowFNID(), NtUserSetWindowLong(), NtUserSetWindowPlacement(), NtUserSetWindowPos(), NtUserSetWindowRgn(), NtUserSetWindowsHookEx(), NtUserSetWindowStationUser(), NtUserSetWindowWord(), NtUserSetWinEventHook(), NtUserShowCaret(), NtUserShowScrollBar(), NtUserShowWindow(), NtUserShowWindowAsync(), NtUserSwitchDesktop(), NtUserSystemParametersInfo(), NtUserThunkedMenuInfo(), NtUserThunkedMenuItemInfo(), NtUserToUnicodeEx(), NtUserTrackMouseEvent(), NtUserTrackPopupMenuEx(), NtUserTranslateAccelerator(), NtUserTranslateMessage(), NtUserUnhookWindowsHookEx(), NtUserUnhookWinEvent(), NtUserUnloadKeyboardLayout(), NtUserUnregisterClass(), NtUserUnregisterHotKey(), NtUserUnregisterUserApiHook(), NtUserUpdateInputContext(), NtUserUpdateLayeredWindow(), NtUserUpdatePerUserSystemParameters(), NtUserValidateHandleSecure(), NtUserValidateTimerCallback(), NtUserVkKeyScanEx(), NtUserWaitForInputIdle(), NtUserWaitMessage(), NtUserWindowFromPoint(), RawInputThreadMain(), UserGetDesktopDC(), UserGhostThreadEntry(), UserSystemThreadProc(), Win32kProcessCallback(), and Win32kThreadCallback().

Variable Documentation

AtomDDETrack

ATOM AtomDDETrack

extern

Definition at line 23 of file ntuser.c.

Referenced by InitUserAtoms(), IntDdeGetMessageHook(), and IntDdeSendMessageHook().

AtomImeLevel

ATOM AtomImeLevel

extern

Definition at line 28 of file ntuser.c.

Referenced by InitUserAtoms(), NtUserGetAppImeLevel(), and NtUserSetAppImeLevel().

AtomQOS

ATOM AtomQOS

extern

Definition at line 24 of file ntuser.c.

Referenced by InitUserAtoms().

cjDataSize

_In_z_ PCWSTR _In_ ULONG _In_ ULONG cjDataSize

Definition at line 50 of file ntuser.h.

Referenced by IntSynthesizeDib().

g_AlwaysDisplayVersion

BOOL g_AlwaysDisplayVersion

extern

Definition at line 17 of file ntuser.c.

Referenced by InitUserImpl(), and IntPaintDesktop().

gaGuiConsoleWndClass

ATOM gaGuiConsoleWndClass

extern

Definition at line 27 of file ntuser.c.

Referenced by co_UserCreateWindowEx(), co_UserFreeWindow(), NtUserConsoleControl(), and NtUserQueryWindow().

gppiInputProvider

PPROCESSINFO gppiInputProvider

extern

Definition at line 16 of file ntuser.c.

Referenced by CanForceFG(), co_IntSetForegroundAndFocusWindow(), UserProcessDestroy(), UserSendKeyboardInput(), and UserSendMouseInput().

gppiList

PPROCESSINFO gppiList

extern

Definition at line 30 of file main.c.

Referenced by ExitProcessCallback(), and InitProcessCallback().

gpsi

PSERVERINFO gpsi

extern

Definition at line 18 of file imm.c.

gptiCurrent

PTHREADINFO gptiCurrent

extern

Definition at line 15 of file ntuser.c.

Referenced by ActivateOtherWindowMin(), co_IntDoSendMessage(), co_IntUnloadKeyboardLayoutEx(), IntClearWindowState(), IntDdePostMessageHook(), IntDdeSendMessageHook(), IntDestroyInputContext(), IntGetLastTopMostWindow(), IntImeWindowPosChanged(), IntSetWindowPlacement(), IntSetWindowState(), IntUnloadKeyboardLayout(), IntWantImeWindow(), NtUserBuildHimcList(), NtUserCloseDesktop(), NtUserDestroyMenu(), NtUserMessageCall(), NtUserRegisterHotKey(), NtUserSetActiveWindow(), NtUserValidateHandleSecure(), UserBuildHimcList(), UserEnterExclusive(), UserPostMessage(), and UserUpdateFullscreen().

ppiScrnSaver

PPROCESSINFO ppiScrnSaver

extern

Definition at line 29 of file main.c.

Referenced by co_IntSetForegroundAndFocusWindow(), DoTheScreenSaver(), UserProcessCreate(), and UserProcessDestroy().

pvData

_In_z_ PCWSTR _In_ ULONG _Post_z_ PVOID pvData

Definition at line 49 of file ntuser.h.

pwszValueName

_In_z_ PCWSTR pwszValueName

Definition at line 47 of file ntuser.h.

Referenced by _Success_(), AllocAndRegQueryWSZ(), CryptGetOIDFunctionValue(), CryptSetOIDFunctionValue(), GetPrinterDataExA(), RegQueryValue(), SetPrinterDataExA(), and SpiLoadFont().

ulType

_In_z_ PCWSTR _In_ ULONG ulType

Definition at line 48 of file ntuser.h.

Referenced by _Success_(), CM_Get_Class_Registry_PropertyA(), CM_Get_Class_Registry_PropertyW(), CM_Set_DevNode_Registry_Property_ExA(), CM_Set_DevNode_Registry_Property_ExW(), GetDeviceInstanceKeyPath(), NtGdiCreateClientObj(), NtGdiDeleteClientObj(), and RegQueryValue().

UserLock

ERESOURCE UserLock

extern

Definition at line 18 of file ntuser.c.

Referenced by CleanupUserImpl(), DriverEntry(), UserEnterExclusive(), UserEnterShared(), UserIsEntered(), UserIsEnteredExclusive(), and UserLeave().