keyboard.c File Reference

#include <win32k.h>
#include <cjkcode.h>

Include dependency graph for keyboard.c:

Go to the source code of this file.

Enumerations
enum	_ALTNUM_STATE {   ALTNUM_INACTIVE , ALTNUM_OEM , ALTNUM_ACP , ALTNUM_HEX_ACP ,   ALTNUM_HEX_UTF }

Functions
	DBG_DEFAULT_CHANNEL (UserKbd)
NTSTATUS NTAPI	InitKeyboardImpl (VOID)
NTSTATUS APIENTRY	IntKeyboardGetIndicatorTrans (HANDLE hKeyboardDevice, PKEYBOARD_INDICATOR_TRANSLATION *ppIndicatorTrans)
static NTSTATUS APIENTRY	IntKeyboardUpdateLeds (HANDLE hKeyboardDevice, WORD wVk, WORD wScanCode)
VOID NTAPI	UserInitKeyboard (HANDLE hKeyboardDevice)
static WORD	IntSimplifyVk (WORD wVk)
static WORD	IntFixVk (WORD wVk, BOOL bExt)
static WORD	IntTranslateNumpadKey (WORD wVk)
static DWORD	IntGetModBits (PKBDTABLES pKbdTbl, PBYTE pKeyState)
static BOOL	IntTranslateChar (WORD wVirtKey, PBYTE pKeyState, PBOOL pbDead, PBOOL pbLigature, PWCHAR pwcTranslatedChar, PKBDTABLES pKbdTbl)
static int APIENTRY	IntToUnicodeEx (UINT wVirtKey, UINT wScanCode, PBYTE pKeyState, LPWSTR pwszBuff, int cchBuff, UINT wFlags, PKBDTABLES pKbdTbl)
static WORD FASTCALL	IntVkToVsc (WORD wVk, PKBDTABLES pKbdTbl)
static WORD FASTCALL	IntVscToVk (WORD wScanCode, PKBDTABLES pKbdTbl)
static WCHAR FASTCALL	IntVkToChar (WORD wVk, PKBDTABLES pKbdTbl)
SHORT APIENTRY	NtUserGetAsyncKeyState (INT Key)
static VOID NTAPI	UpdateAsyncKeyState (WORD wVk, BOOL bIsDown)
static LRESULT	co_CallLowLevelKeyboardHook (WORD wVk, WORD wScanCode, DWORD dwFlags, BOOL bInjected, DWORD dwTime, DWORD dwExtraInfo)
static VOID	SnapWindow (HWND hWnd)
static PKL FASTCALL	IntGetNextKL (_In_ PKL pKL, _In_ BOOL bNext, _In_ BOOL bSameLang)
static VOID	IntLanguageToggle (_In_ PUSER_MESSAGE_QUEUE pFocusQueue, _In_ BOOL bSameLang, _In_ INT nKeyState)
static BOOL	IntCheckLanguageToggle (_In_ PUSER_MESSAGE_QUEUE pFocusQueue, _In_ BOOL bIsDown, _In_ WORD wVk, _Inout_ PINT pKeyState)
static BOOL	IntHandleAltNumpad (_In_ WORD wVk, _In_ BOOL bIsDown, _In_ DWORD dwTime)
	Handles Alt+Numpad character composition.
BOOL NTAPI	ProcessKeyEvent (WORD wVk, WORD wScanCode, DWORD dwFlags, BOOL bInjected, DWORD dwTime, DWORD dwExtraInfo)
BOOL NTAPI	UserSendKeyboardInput (KEYBDINPUT *pKbdInput, BOOL bInjected)
VOID NTAPI	UserProcessKeyboardInput (PKEYBOARD_INPUT_DATA pKbdInputData)
BOOL FASTCALL	IntTranslateKbdMessage (LPMSG lpMsg, UINT flags)
static UINT	IntMapVirtualKeyEx (UINT uCode, UINT Type, PKBDTABLES pKbdTbl)
UINT APIENTRY	NtUserMapVirtualKeyEx (UINT uCode, UINT uType, DWORD keyboardId, HKL dwhkl)
int APIENTRY	NtUserToUnicodeEx (UINT wVirtKey, UINT wScanCode, PBYTE pKeyStateUnsafe, LPWSTR pwszBuffUnsafe, INT cchBuff, UINT wFlags, HKL dwhkl)
DWORD APIENTRY	NtUserGetKeyNameText (LONG lParam, LPWSTR lpString, int cchSize)
DWORD FASTCALL	UserGetKeyboardType (DWORD dwTypeFlag)
DWORD APIENTRY	NtUserVkKeyScanEx (WCHAR wch, HKL dwhkl, BOOL bUsehKL)

Variables
BYTE	gafAsyncKeyState [256 *2/8]
static BYTE	gafAsyncKeyStateRecentDown [256/8]
static PKEYBOARD_INDICATOR_TRANSLATION	gpKeyboardIndicatorTrans = NULL
static KEYBOARD_INDICATOR_PARAMETERS	gIndicators = {0, 0}
KEYBOARD_ATTRIBUTES	gKeyboardInfo
static INT	gLanguageToggleKeyState = 0
DWORD	gdwLanguageToggleKey = 1
static INT	gLayoutToggleKeyState = 0
DWORD	gdwLayoutToggleKey = 2
static enum _ALTNUM_STATE	gAltNumPadState = ALTNUM_INACTIVE
static ULONG	gAltNumPadValue = 0
BOOL	gbEnableHexNumpad = FALSE

Enumeration Type Documentation

_ALTNUM_STATE

enum _ALTNUM_STATE

Enumerator
ALTNUM_INACTIVE
ALTNUM_OEM
ALTNUM_ACP
ALTNUM_HEX_ACP
ALTNUM_HEX_UTF

Definition at line 26 of file keyboard.c.

{
    ALTNUM_INACTIVE,
    ALTNUM_OEM,     // Alt  xxx
    ALTNUM_ACP,     // Alt 0xxx
    ALTNUM_HEX_ACP, // Alt .xxx
    ALTNUM_HEX_UTF  // Alt +xxx
} gAltNumPadState = ALTNUM_INACTIVE;

Function Documentation

co_CallLowLevelKeyboardHook()

static LRESULT co_CallLowLevelKeyboardHook ( WORD  wVk, WORD  wScanCode, DWORD  dwFlags, BOOL  bInjected, DWORD  dwTime, DWORD  dwExtraInfo  )

static

Definition at line 704 of file keyboard.c.

{
    KBDLLHOOKSTRUCT KbdHookData;
    UINT uMsg;
 
    KbdHookData.vkCode = wVk;
    KbdHookData.scanCode = wScanCode;
    KbdHookData.flags = 0;
    if (dwFlags & KEYEVENTF_EXTENDEDKEY)
        KbdHookData.flags |= LLKHF_EXTENDED;
    if (IS_KEY_DOWN(gafAsyncKeyState, VK_MENU))
        KbdHookData.flags |= LLKHF_ALTDOWN;
    if (dwFlags & KEYEVENTF_KEYUP)
        KbdHookData.flags |= LLKHF_UP;
    if (bInjected)
        KbdHookData.flags |= LLKHF_INJECTED;
    KbdHookData.time = dwTime;
    KbdHookData.dwExtraInfo = dwExtraInfo;
 
    /* Note: it doesnt support WM_SYSKEYUP */
    if (dwFlags & KEYEVENTF_KEYUP)
        uMsg = WM_KEYUP;
    else if (IS_KEY_DOWN(gafAsyncKeyState, VK_MENU) && !IS_KEY_DOWN(gafAsyncKeyState, VK_CONTROL))
        uMsg = WM_SYSKEYDOWN;
    else
        uMsg = WM_KEYDOWN;
 
    return co_HOOK_CallHooks(WH_KEYBOARD_LL, HC_ACTION, uMsg, (LPARAM)&KbdHookData);
}

Referenced by ProcessKeyEvent().

DBG_DEFAULT_CHANNEL()

DBG_DEFAULT_CHANNEL

(

UserKbd

)

InitKeyboardImpl()

NTSTATUS NTAPI InitKeyboardImpl

(

VOID

)

Definition at line 48 of file keyboard.c.

{
    RtlZeroMemory(&gafAsyncKeyState, sizeof(gafAsyncKeyState));
    RtlZeroMemory(&gafAsyncKeyStateRecentDown, sizeof(gafAsyncKeyStateRecentDown));
    // Clear and set default information.
    RtlZeroMemory(&gKeyboardInfo, sizeof(gKeyboardInfo));
    gKeyboardInfo.KeyboardIdentifier.Type = 4; /* AT-101 */
    gKeyboardInfo.NumberOfFunctionKeys = 12; /* We're doing an 101 for now, so return 12 F-keys */
    return STATUS_SUCCESS;
}

Referenced by DriverEntry().

IntCheckLanguageToggle()

static BOOL IntCheckLanguageToggle ( _In_ PUSER_MESSAGE_QUEUE  pFocusQueue, _In_ BOOL  bIsDown, _In_ WORD  wVk, _Inout_ PINT  pKeyState  )

static

Definition at line 871 of file keyboard.c.

{
    if (bIsDown) /* Toggle key combination is pressed? */
    {
        if (wVk == VK_LSHIFT)
            *pKeyState = INPUTLANGCHANGE_FORWARD;
        else if (wVk == VK_RSHIFT)
            *pKeyState = INPUTLANGCHANGE_BACKWARD;
        else if (!wVk && IS_KEY_DOWN(gafAsyncKeyState, VK_LSHIFT))
            *pKeyState = INPUTLANGCHANGE_FORWARD;
        else if (!wVk && IS_KEY_DOWN(gafAsyncKeyState, VK_RSHIFT))
            *pKeyState = INPUTLANGCHANGE_BACKWARD;
        else
            return FALSE;
    }
    else
    {
        if (*pKeyState == 0)
            return FALSE;
 
        IntLanguageToggle(pFocusQueue, (pKeyState == &gLayoutToggleKeyState), *pKeyState);
        *pKeyState = 0;
    }
    return TRUE;
}

Referenced by ProcessKeyEvent().

IntFixVk()

static WORD IntFixVk ( WORD  wVk, BOOL  bExt  )

static

Definition at line 264 of file keyboard.c.

{
    switch (wVk)
    {
        case VK_SHIFT:
            return bExt ? VK_RSHIFT : VK_LSHIFT;
 
        case VK_CONTROL:
            return bExt ? VK_RCONTROL : VK_LCONTROL;
 
        case VK_MENU:
            return bExt ? VK_RMENU : VK_LMENU;
 
        default:
            return wVk;
    }
}

Referenced by IntMapVirtualKeyEx(), and ProcessKeyEvent().

IntGetModBits()

static DWORD IntGetModBits ( PKBDTABLES  pKbdTbl, PBYTE  pKeyState  )

static

Definition at line 315 of file keyboard.c.

{
    DWORD i, dwModBits = 0;
 
    /* DumpKeyState( KeyState ); */
 
    for (i = 0; pKbdTbl->pCharModifiers->pVkToBit[i].Vk; i++)
        if (IS_KEY_DOWN(pKeyState, pKbdTbl->pCharModifiers->pVkToBit[i].Vk))
            dwModBits |= pKbdTbl->pCharModifiers->pVkToBit[i].ModBits;
 
    TRACE("Current Mod Bits: %lx\n", dwModBits);
 
    return dwModBits;
}

Referenced by IntTranslateChar().

IntGetNextKL()

static PKL FASTCALL IntGetNextKL ( _In_ PKL  pKL, _In_ BOOL  bNext, _In_ BOOL  bSameLang  )

static

Definition at line 813 of file keyboard.c.

{
    PKL pFirstKL = pKL;
    LANGID LangID = LOWORD(pKL->hkl);
 
    do
    {
        pKL = (bNext ? pKL->pklNext : pKL->pklPrev);
 
        if (!(pKL->dwKL_Flags & KL_UNLOAD) && bSameLang == (LangID == LOWORD(pKL->hkl)))
            return pKL;
    } while (pKL != pFirstKL);
 
    return pFirstKL;
}

Referenced by IntLanguageToggle().

IntHandleAltNumpad()

static BOOL IntHandleAltNumpad ( _In_ WORD  wVk, _In_ BOOL  bIsDown, _In_ DWORD  dwTime  )

static

Handles Alt+Numpad character composition.

Parameters

[in]	wVk	The virtual key code of the key being input, in its "simplified" shift-less version, as given by IntSimplifyVk().
[in]	bIsDown	TRUE if the current key is being pressed; FALSE if it is released.

Returns

TRUE if no further key processing needs to be done; FALSE if regular key processing has to be done by the caller.

Definition at line 916 of file keyboard.c.

{
    if (bIsDown &&
        IS_KEY_DOWN(gafAsyncKeyState, VK_MENU) &&
        !IS_KEY_DOWN(gafAsyncKeyState, VK_CONTROL))
    {
        TRACE("VK_MENU && !VK_CONTROL - wVk: 0x%04x\n", wVk);
 
        /* Initialize the Alt+Numpad state if necessary */
        if (gAltNumPadState == ALTNUM_INACTIVE)
        {
            if (gbEnableHexNumpad && (wVk == VK_DECIMAL)) // || (wVk == VK_OEM_PERIOD)
                gAltNumPadState = ALTNUM_HEX_ACP, wVk = VK_NUMPAD0; // Replace '.' by '0'
            else if (gbEnableHexNumpad && (wVk == VK_ADD)) // || (wVk == VK_OEM_PLUS)
                gAltNumPadState = ALTNUM_HEX_UTF, wVk = VK_NUMPAD0; // Replace '+' by '0'
            else if (wVk >= VK_NUMPAD0 && wVk <= VK_NUMPAD9) // || (wVk >= '0' && wVk <= '9')
                gAltNumPadState = (wVk == VK_NUMPAD0) ? ALTNUM_ACP : ALTNUM_OEM;
            else
                return FALSE; /* Unhandled, do regular key processing */
        }
 
        /* Check the incoming key */
        switch (gAltNumPadState)
        {
            case ALTNUM_OEM: case ALTNUM_ACP:
            {
                UINT uDigit;
 
                /* Check if it is a numpad digit */
                if (wVk >= VK_NUMPAD0 && wVk <= VK_NUMPAD9)
                    uDigit = wVk - VK_NUMPAD0;
                // else if (wVk >= '0' && wVk <= '9')
                //     uDigit = wVk - '0';
                else
                    break;
 
                /* Build the decimal value; the value can overflow
                 * and be truncated (same behaviour as on Windows) */
                gAltNumPadValue = (gAltNumPadValue * 10) + uDigit;
                return TRUE; /* No key processing needs to be done */
            }
            case ALTNUM_HEX_ACP: case ALTNUM_HEX_UTF:
            {
                UINT uDigit;
 
                /* Check if it represents a valid hexadecimal digit */
                if (wVk >= VK_NUMPAD0 && wVk <= VK_NUMPAD9)
                    uDigit = wVk - VK_NUMPAD0;
                else if (wVk >= '0' && wVk <= '9')
                    uDigit = wVk - '0';
                else if (wVk >= 'A' && wVk <= 'F')
                    uDigit = wVk - 'A' + 10;
                else
                    break;
 
                /* Build the hexadecimal value; the value can overflow
                 * and be truncated (same behaviour as on Windows) */
                gAltNumPadValue = (gAltNumPadValue * 16) + uDigit;
                return TRUE; /* No key processing needs to be done */
            }
            DEFAULT_UNREACHABLE;
        }
 
        /* If the incoming key is not the ALT key, reset the Alt+Numpad state */
        if (wVk != VK_MENU)
        {
            gAltNumPadState = ALTNUM_INACTIVE;
            gAltNumPadValue = 0;
        }
    }
    TRACE("gAltNumPadState: %lu, gAltNumPadValue: %lu\n",
          gAltNumPadState, gAltNumPadValue);
 
    /* Check for the end of an Alt+Numpad sequence, triggered by the ALT key release */
    if ((gAltNumPadState != ALTNUM_INACTIVE) && !bIsDown && (wVk == VK_MENU))
    {
        PUSER_MESSAGE_QUEUE pFocusQueue = IntGetFocusMessageQueue();
 
        TRACE("End of Alt+Numpad\n");
        if (gAltNumPadValue != 0 && pFocusQueue && pFocusQueue->ptiKeyboard)
        {
            NTSTATUS Status;
            WCHAR wchUnicodeChar;
 
            /* Convert the input codepoint value to UTF-16 */
            if (gAltNumPadState == ALTNUM_HEX_UTF)
            {
                /* Convert the Unicode codepoint to UTF-16 */
                // FIXME: We currently support only the Basic Multilingual Plane
                // (equivalent to UCS-2) and don't exclude the surrogate range
                // (U+D800 to U+DFFF). In the future, we should handle all the
                // valid values, generating two UTF-16 code units if necessary
                // so as to support the other Unicode planes.
                // See https://en.wikipedia.org/wiki/UTF-16#Description
                wchUnicodeChar = (WCHAR)(gAltNumPadValue & 0xFFFF);
                Status = STATUS_SUCCESS;
            }
            else
            {
                NTSTATUS (NTAPI* pRtlCPToUnicodeN)(
                    _Out_writes_bytes_to_(MaxBytesInUnicodeString, *BytesInUnicodeString) PWCH UnicodeString,
                    _In_ ULONG MaxBytesInUnicodeString,
                    _Out_opt_ PULONG BytesInUnicodeString,
                    _In_reads_bytes_(BytesInString) PCCH String,
                    _In_ ULONG BytesInString);
 
                USHORT AnsiCP, OemCP, wCodePage, mbChar;
 
                /* Check the current codepage and select a conversion function.
                 * NOTE: Windows WIN32K invokes the ClientCharToWchar
                 * USER32 callback to perform the conversion. */
                RtlGetDefaultCodePage(&AnsiCP, &OemCP);
                if (gAltNumPadState == ALTNUM_OEM)
                {
                    // TODO: Handle console where we do not know its active
                    // OEM codepage. In this case we need to directly send
                    // the raw OEM numpad value, OR'ed with ALTNUMPAD_BIT.
                    // For more details, see:
                    // https://github.com/microsoft/terminal/blob/e20e1f7bf92b61580baea69483a74a7f4578a586/src/host/stream.cpp#L170
 
                    /* Use the current OEM codepage -> Unicode function */
                    wCodePage = OemCP;
                    pRtlCPToUnicodeN = RtlOemToUnicodeN;
                }
                else // if ((gAltNumPadState == ALTNUM_ACP) ||
                     //     (gAltNumPadState == ALTNUM_HEX_ACP))
                {
                    /* Use the current ANSI codepage (ACP) MultiByte -> Unicode function */
                    wCodePage = AnsiCP;
                    pRtlCPToUnicodeN = RtlMultiByteToUnicodeN;
                }
 
                /* For CJK codepages, keep the input value on 2 bytes,
                 * otherwise truncate it to 1 byte for legacy behaviour. */
                if (IsCJKCodePage(wCodePage))
                {
                    mbChar = (USHORT)(gAltNumPadValue & 0xFFFF);
                }
                else
                {
                    /*
                     * NOTE: the input value is considered modulo 256 as it is
                     * stored in a 1-byte CHAR. Other input systems that hook and
                     * re-implement the Alt+Numpad system (e.g. RichEdit, ...)
                     * store instead the value in a 2-byte WORD, i.e. consider
                     * the value modulo 65536.
                     * See: https://devblogs.microsoft.com/oldnewthing/20240702-00/?p=109951
                     */
                    mbChar = (USHORT)(gAltNumPadValue & 0xFF);
                }
 
                Status = pRtlCPToUnicodeN(&wchUnicodeChar,
                                          sizeof(wchUnicodeChar),
                                          NULL,
                                          (PCCH)&mbChar,
                                          sizeof(mbChar));
            }
 
            /* Post the Unicode character to the focused message queue if conversion succeeded */
            if (NT_SUCCESS(Status))
            {
                MSG msgChar;
                msgChar.hwnd = pFocusQueue->spwndFocus ? UserHMGetHandle(pFocusQueue->spwndFocus) : NULL;
                msgChar.message = WM_CHAR;
                msgChar.wParam = wchUnicodeChar;
                msgChar.lParam = 1;
                msgChar.time = dwTime;
                msgChar.pt = gpsi->ptCursor;
 
                MsqPostMessage(pFocusQueue->ptiKeyboard, &msgChar, FALSE, QS_KEY, 0, 0);
            }
        }
 
        /* Reset the Alt+Numpad state */
        gAltNumPadState = ALTNUM_INACTIVE;
        gAltNumPadValue = 0;
    }
 
    return FALSE; /* More key processing has to be done */
}

Referenced by ProcessKeyEvent().

IntKeyboardGetIndicatorTrans()

NTSTATUS APIENTRY IntKeyboardGetIndicatorTrans	(	HANDLE	hKeyboardDevice,
		PKEYBOARD_INDICATOR_TRANSLATION *	ppIndicatorTrans
	)

Definition at line 67 of file keyboard.c.

{
    NTSTATUS Status;
    DWORD dwSize = 0;
    IO_STATUS_BLOCK Block;
    PKEYBOARD_INDICATOR_TRANSLATION pRet;
 
    dwSize = sizeof(KEYBOARD_INDICATOR_TRANSLATION);
 
    pRet = ExAllocatePoolWithTag(PagedPool,
                                 dwSize,
                                 USERTAG_KBDTABLE);
 
    while (pRet)
    {
        Status = ZwDeviceIoControlFile(hKeyboardDevice,
                                       NULL,
                                       NULL,
                                       NULL,
                                       &Block,
                                       IOCTL_KEYBOARD_QUERY_INDICATOR_TRANSLATION,
                                       NULL, 0,
                                       pRet, dwSize);
 
        if (Status != STATUS_BUFFER_TOO_SMALL)
            break;
 
        ExFreePoolWithTag(pRet, USERTAG_KBDTABLE);
 
        dwSize += sizeof(KEYBOARD_INDICATOR_TRANSLATION);
 
        pRet = ExAllocatePoolWithTag(PagedPool,
                                     dwSize,
                                     USERTAG_KBDTABLE);
    }
 
    if (!pRet)
        return STATUS_INSUFFICIENT_RESOURCES;
 
    if (!NT_SUCCESS(Status))
    {
        ExFreePoolWithTag(pRet, USERTAG_KBDTABLE);
        return Status;
    }
 
    *ppIndicatorTrans = pRet;
    return Status;
}

Referenced by UserInitKeyboard().

IntKeyboardUpdateLeds()

static NTSTATUS APIENTRY IntKeyboardUpdateLeds ( HANDLE  hKeyboardDevice, WORD  wVk, WORD  wScanCode  )

static

Definition at line 124 of file keyboard.c.

{
    NTSTATUS Status;
    UINT i;
    USHORT LedFlag = 0;
    IO_STATUS_BLOCK Block;
 
    if (!gpKeyboardIndicatorTrans)
        return STATUS_NOT_SUPPORTED;
 
    switch (wVk)
    {
        case VK_CAPITAL: LedFlag = KEYBOARD_CAPS_LOCK_ON; break;
        case VK_NUMLOCK: LedFlag = KEYBOARD_NUM_LOCK_ON; break;
        case VK_SCROLL: LedFlag = KEYBOARD_SCROLL_LOCK_ON; break;
        default:
            for (i = 0; i < gpKeyboardIndicatorTrans->NumberOfIndicatorKeys; i++)
            {
                if (gpKeyboardIndicatorTrans->IndicatorList[i].MakeCode == wScanCode)
                {
                    LedFlag = gpKeyboardIndicatorTrans->IndicatorList[i].IndicatorFlags;
                    break;
                }
            }
    }
 
    if (LedFlag)
    {
        gIndicators.LedFlags ^= LedFlag;
 
        /* Update the lights on the hardware */
        Status = ZwDeviceIoControlFile(hKeyboardDevice,
                                       NULL,
                                       NULL,
                                       NULL,
                                       &Block,
                                       IOCTL_KEYBOARD_SET_INDICATORS,
                                       &gIndicators, sizeof(gIndicators),
                                       NULL, 0);
 
        return Status;
    }
 
    return STATUS_SUCCESS;
}

Referenced by ProcessKeyEvent().

IntLanguageToggle()

static VOID IntLanguageToggle ( _In_ PUSER_MESSAGE_QUEUE  pFocusQueue, _In_ BOOL  bSameLang, _In_ INT  nKeyState  )

static

Definition at line 834 of file keyboard.c.

{
    PWND pWnd;
    PTHREADINFO pti;
    PKL pkl;
    WPARAM wParam = 0;
 
    if (!pFocusQueue)
    {
        ERR("IntLanguageToggle(): NULL pFocusQueue\n");
        return;
    }
    pWnd = pFocusQueue->spwndFocus;
    if (!pWnd)
        pWnd = pFocusQueue->spwndActive;
    if (!pWnd)
        return;
 
    pti = pWnd->head.pti;
    pkl = pti->KeyboardLayout;
 
    if (nKeyState == INPUTLANGCHANGE_FORWARD)
        pkl = IntGetNextKL(pkl, TRUE, bSameLang);
    else if (nKeyState == INPUTLANGCHANGE_BACKWARD)
        pkl = IntGetNextKL(pkl, FALSE, bSameLang);
 
    if (gSystemFS & pkl->dwFontSigs)
        wParam |= INPUTLANGCHANGE_SYSCHARSET;
 
    UserPostMessage(UserHMGetHandle(pWnd), WM_INPUTLANGCHANGEREQUEST, wParam, (LPARAM)pkl->hkl);
}

Referenced by IntCheckLanguageToggle().

IntMapVirtualKeyEx()

static UINT IntMapVirtualKeyEx ( UINT  uCode, UINT  Type, PKBDTABLES  pKbdTbl  )

static

Definition at line 1616 of file keyboard.c.

{
    UINT uRet = 0;
 
    switch (Type)
    {
        case MAPVK_VK_TO_VSC:
            uCode = IntFixVk(uCode, FALSE);
            uRet = IntVkToVsc(uCode, pKbdTbl);
            if (uRet > 0xFF) // Fail for scancodes with prefix (e0, e1)
                uRet = 0;
            break;
 
        case MAPVK_VSC_TO_VK:
            uRet = IntVscToVk(uCode, pKbdTbl) & 0xFF;
            uRet = IntSimplifyVk(uRet);
            break;
 
        case MAPVK_VK_TO_CHAR:
            uRet = (UINT)IntVkToChar(uCode, pKbdTbl);
        break;
 
        case MAPVK_VSC_TO_VK_EX:
            uRet = IntVscToVk(uCode, pKbdTbl) & 0xFF;
            break;
 
        case MAPVK_VK_TO_VSC_EX:
            uRet = IntVkToVsc(uCode, pKbdTbl);
            break;
 
        default:
            EngSetLastError(ERROR_INVALID_PARAMETER);
            ERR("Wrong type value: %u\n", Type);
    }
 
    return uRet;
}

Referenced by NtUserMapVirtualKeyEx().

IntSimplifyVk()

static WORD IntSimplifyVk ( WORD  wVk )

static

Definition at line 236 of file keyboard.c.

{
    switch (wVk)
    {
        case VK_LSHIFT:
        case VK_RSHIFT:
            return VK_SHIFT;
 
        case VK_LCONTROL:
        case VK_RCONTROL:
            return VK_CONTROL;
 
        case VK_LMENU:
        case VK_RMENU:
            return VK_MENU;
 
        default:
            return wVk;
    }
}

Referenced by IntMapVirtualKeyEx(), and ProcessKeyEvent().

IntToUnicodeEx()

static int APIENTRY IntToUnicodeEx ( UINT  wVirtKey, UINT  wScanCode, PBYTE  pKeyState, LPWSTR  pwszBuff, int  cchBuff, UINT  wFlags, PKBDTABLES  pKbdTbl  )

static

Definition at line 449 of file keyboard.c.

{
    WCHAR wchTranslatedChar;
    BOOL bDead, bLigature;
    static WCHAR wchDead = 0;
    int iRet = 0;
 
    ASSERT(pKbdTbl);
 
    if (!IntTranslateChar(wVirtKey,
                          pKeyState,
                          &bDead,
                          &bLigature,
                          &wchTranslatedChar,
                          pKbdTbl))
    {
        return 0;
    }
 
    if (bLigature)
    {
        WARN("Not handling ligature (yet)\n" );
        return 0;
    }
 
    /* If we got dead char in previous call check dead keys in keyboard layout */
    if (wchDead)
    {
        UINT i;
        WCHAR wchFirst, wchSecond;
        TRACE("Previous dead char: %lc (%x)\n", wchDead, wchDead);
 
        if (pKbdTbl->pDeadKey)
        {
            for (i = 0; pKbdTbl->pDeadKey[i].dwBoth; i++)
            {
                wchFirst = pKbdTbl->pDeadKey[i].dwBoth >> 16;
                wchSecond = pKbdTbl->pDeadKey[i].dwBoth & 0xFFFF;
                if (wchFirst == wchDead && wchSecond == wchTranslatedChar)
                {
                    wchTranslatedChar = pKbdTbl->pDeadKey[i].wchComposed;
                    wchDead = 0;
                    bDead = FALSE;
                    break;
                }
            }
        }
        else
        {
#if defined(__GNUC__)
            if (wchDead == 0x8000)
            {
                ERR("GCC is inventing bits, ignoring fake dead key\n");
                wchDead = 0;
            }
#endif
        }
 
        TRACE("Final char: %lc (%x)\n", wchTranslatedChar, wchTranslatedChar);
    }
 
    /* Dead char has not been not found */
    if (wchDead)
    {
        /* Treat both characters normally */
        if (cchBuff > iRet)
            pwszBuff[iRet++] = wchDead;
        bDead = FALSE;
    }
 
    /* Add character to the buffer */
    if (cchBuff > iRet)
        pwszBuff[iRet++] = wchTranslatedChar;
 
    /* Save dead character */
    wchDead = bDead ? wchTranslatedChar : 0;
 
    return bDead ? -iRet : iRet;
}

Referenced by IntTranslateKbdMessage(), and NtUserToUnicodeEx().

IntTranslateChar()

static BOOL IntTranslateChar ( WORD  wVirtKey, PBYTE  pKeyState, PBOOL  pbDead, PBOOL  pbLigature, PWCHAR  pwcTranslatedChar, PKBDTABLES  pKbdTbl  )

static

Definition at line 337 of file keyboard.c.

{
    PVK_TO_WCHAR_TABLE pVkToVchTbl;
    PVK_TO_WCHARS10 pVkToVch;
    DWORD i, dwModBits, dwVkModBits, dwModNumber = 0;
    WCHAR wch;
    BOOL bAltGr;
    WORD wCaplokAttr;
 
    dwModBits = pKeyState ? IntGetModBits(pKbdTbl, pKeyState) : 0;
    bAltGr = pKeyState && (pKbdTbl->fLocaleFlags & KLLF_ALTGR) && IS_KEY_DOWN(pKeyState, VK_RMENU);
    wCaplokAttr = bAltGr ? CAPLOKALTGR : CAPLOK;
 
    TRACE("TryToTranslate: %04x %x\n", wVirtKey, dwModBits);
 
    /* If ALT without CTRL has ben used, remove ALT flag */
    if ((dwModBits & (KBDALT|KBDCTRL)) == KBDALT)
        dwModBits &= ~KBDALT;
 
    if (dwModBits > pKbdTbl->pCharModifiers->wMaxModBits)
    {
        TRACE("dwModBits %x > wMaxModBits %x\n", dwModBits, pKbdTbl->pCharModifiers->wMaxModBits);
        return FALSE;
    }
 
    for (i = 0; pKbdTbl->pVkToWcharTable[i].pVkToWchars; i++)
    {
        pVkToVchTbl = &pKbdTbl->pVkToWcharTable[i];
        pVkToVch = (PVK_TO_WCHARS10)(pVkToVchTbl->pVkToWchars);
        while (pVkToVch->VirtualKey)
        {
            if (wVirtKey == (pVkToVch->VirtualKey & 0xFF))
            {
                dwVkModBits = dwModBits;
 
                /* If CapsLock is enabled for this key and locked, add SHIFT bit */
                if ((pVkToVch->Attributes & wCaplokAttr) &&
                    pKeyState &&
                    IS_KEY_LOCKED(pKeyState, VK_CAPITAL))
                {
                    /* Note: we use special value here instead of getting VK_SHIFT mod bit - it's verified */
                    dwVkModBits ^= KBDSHIFT;
                }
 
                if (dwVkModBits > pKbdTbl->pCharModifiers->wMaxModBits)
                    break;
 
                /* Get modification number */
                dwModNumber = pKbdTbl->pCharModifiers->ModNumber[dwVkModBits];
                if (dwModNumber >= pVkToVchTbl->nModifications)
                {
                    TRACE("dwModNumber %u >= nModifications %u\n", dwModNumber, pVkToVchTbl->nModifications);
                    break;
                }
 
                /* Read character */
                wch = pVkToVch->wch[dwModNumber];
                if (wch == WCH_NONE)
                    break;
 
                *pbDead = (wch == WCH_DEAD);
                *pbLigature = (wch == WCH_LGTR);
                *pwcTranslatedChar = wch;
 
                TRACE("%lu %04x: dwModNumber %08x Char %04x\n",
                      i, wVirtKey, dwModNumber, wch);
 
                if (*pbDead)
                {
                    /* After WCH_DEAD, real character is located */
                    pVkToVch = (PVK_TO_WCHARS10)(((BYTE *)pVkToVch) + pVkToVchTbl->cbSize);
                    if (pVkToVch->VirtualKey != 0xFF)
                    {
                        WARN("Found dead key with no trailer in the table.\n");
                        WARN("VK: %04x, ADDR: %p\n", wVirtKey, pVkToVch);
                        break;
                    }
                    *pwcTranslatedChar = pVkToVch->wch[dwModNumber];
                }
                return TRUE;
            }
            pVkToVch = (PVK_TO_WCHARS10)(((BYTE *)pVkToVch) + pVkToVchTbl->cbSize);
        }
    }
 
    /* If nothing has been found in layout, check if this is ASCII control character.
       Note: we could add it to layout table, but windows does not have it there */
    if (wVirtKey >= 'A' && wVirtKey <= 'Z' &&
        pKeyState && IS_KEY_DOWN(pKeyState, VK_CONTROL) &&
        !IS_KEY_DOWN(pKeyState, VK_MENU))
    {
        *pwcTranslatedChar = (wVirtKey - 'A') + 1; /* ASCII control character */
        *pbDead = FALSE;
        *pbLigature = FALSE;
        return TRUE;
    }
 
    return FALSE;
}

Referenced by IntToUnicodeEx(), and IntVkToChar().

IntTranslateKbdMessage()

BOOL FASTCALL IntTranslateKbdMessage	(	LPMSG	lpMsg,
		UINT	flags
	)

Definition at line 1499 of file keyboard.c.

{
    PTHREADINFO pti;
    INT cch = 0, i;
    WCHAR wch[3] = { 0 };
    MSG NewMsg = { 0 };
    PKBDTABLES pKbdTbl;
    BOOL bResult = FALSE;
 
    switch(lpMsg->message)
    {
       case WM_KEYDOWN:
       case WM_KEYUP:
       case WM_SYSKEYDOWN:
       case WM_SYSKEYUP:
          break;
       default:
          return FALSE;
    }
 
    pti = PsGetCurrentThreadWin32Thread();
 
    if (!pti->KeyboardLayout)
    {
        PKL pDefKL = W32kGetDefaultKeyLayout();
        UserAssignmentLock((PVOID*)&(pti->KeyboardLayout), pDefKL);
        if (pDefKL)
        {
            pti->pClientInfo->hKL = pDefKL->hkl;
            pKbdTbl = pDefKL->spkf->pKbdTbl;
        }
        else
        {
            pti->pClientInfo->hKL = NULL;
            pKbdTbl = NULL;
        }
    }
    else
       pKbdTbl = pti->KeyboardLayout->spkf->pKbdTbl;
    if (!pKbdTbl)
        return FALSE;
 
    if (lpMsg->message != WM_KEYDOWN && lpMsg->message != WM_SYSKEYDOWN)
        return FALSE;
 
    /* Init pt, hwnd and time msg fields */
    NewMsg.pt = gpsi->ptCursor;
    NewMsg.hwnd = lpMsg->hwnd;
    NewMsg.time = EngGetTickCount32();
 
    TRACE("Enter IntTranslateKbdMessage msg %s, vk %x\n",
        lpMsg->message == WM_SYSKEYDOWN ? "WM_SYSKEYDOWN" : "WM_KEYDOWN", lpMsg->wParam);
 
    if (lpMsg->wParam == VK_PACKET)
    {
        NewMsg.message = (lpMsg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
        NewMsg.wParam = HIWORD(lpMsg->lParam);
        NewMsg.lParam = LOWORD(lpMsg->lParam);
        MsqPostMessage(pti, &NewMsg, FALSE, QS_KEY, 0, 0);
        return TRUE;
    }
 
    cch = IntToUnicodeEx(lpMsg->wParam,
                         HIWORD(lpMsg->lParam) & 0xFF,
                         pti->MessageQueue->afKeyState,
                         wch,
                         sizeof(wch) / sizeof(wch[0]),
                         0,
                         pKbdTbl);
 
    if (cch)
    {
        if (cch > 0) /* Normal characters */
            NewMsg.message = (lpMsg->message == WM_KEYDOWN) ? WM_CHAR : WM_SYSCHAR;
        else /* Dead character */
        {
            cch = -cch;
            NewMsg.message =
                (lpMsg->message == WM_KEYDOWN) ? WM_DEADCHAR : WM_SYSDEADCHAR;
        }
        NewMsg.lParam = lpMsg->lParam;
 
        /* Send all characters */
        for (i = 0; i < cch; ++i)
        {
            TRACE("Msg: %x '%lc' (%04x) %08x\n", NewMsg.message, wch[i], wch[i], NewMsg.lParam);
            NewMsg.wParam = wch[i];
            MsqPostMessage(pti, &NewMsg, FALSE, QS_KEY, 0, 0);
        }
        bResult = TRUE;
    }
 
    TRACE("Leave IntTranslateKbdMessage ret %d, cch %d, msg %x, wch %x\n",
        bResult, cch, NewMsg.message, NewMsg.wParam);
    return bResult;
}

Referenced by DefWndDoSizeMove(), DefWndStartSizeMove(), MENU_TrackMenu(), and NtUserTranslateMessage().

IntTranslateNumpadKey()

static WORD IntTranslateNumpadKey ( WORD  wVk )

static

Definition at line 289 of file keyboard.c.

{
    switch (wVk)
    {
        case VK_INSERT: return VK_NUMPAD0;
        case VK_END: return VK_NUMPAD1;
        case VK_DOWN: return VK_NUMPAD2;
        case VK_NEXT: return VK_NUMPAD3;
        case VK_LEFT: return VK_NUMPAD4;
        case VK_CLEAR: return VK_NUMPAD5;
        case VK_RIGHT: return VK_NUMPAD6;
        case VK_HOME: return VK_NUMPAD7;
        case VK_UP: return VK_NUMPAD8;
        case VK_PRIOR: return VK_NUMPAD9;
        case VK_DELETE: return VK_DECIMAL;
        default: return wVk;
    }
}

Referenced by UserProcessKeyboardInput().

IntVkToChar()

static WCHAR FASTCALL IntVkToChar ( WORD  wVk, PKBDTABLES  pKbdTbl  )

static

Definition at line 622 of file keyboard.c.

{
    WCHAR wch;
    BOOL bDead, bLigature;
 
    ASSERT(pKbdTbl);
 
    if (IntTranslateChar(wVk,
                         NULL,
                         &bDead,
                         &bLigature,
                         &wch,
                         pKbdTbl))
    {
        return wch;
    }
 
    return 0;
}

Referenced by IntMapVirtualKeyEx(), and NtUserGetKeyNameText().

IntVkToVsc()

static WORD FASTCALL IntVkToVsc ( WORD  wVk, PKBDTABLES  pKbdTbl  )

static

Definition at line 542 of file keyboard.c.

{
    unsigned i;
 
    ASSERT(pKbdTbl);
 
    /* Check standard keys first */
    for (i = 0; i < pKbdTbl->bMaxVSCtoVK; i++)
    {
        if ((pKbdTbl->pusVSCtoVK[i] & 0xFF) == wVk)
            return i;
    }
 
    /* Check extended keys now */
    for (i = 0; pKbdTbl->pVSCtoVK_E0[i].Vsc; i++)
    {
        if ((pKbdTbl->pVSCtoVK_E0[i].Vk & 0xFF) == wVk)
            return 0xE000 | pKbdTbl->pVSCtoVK_E0[i].Vsc;
    }
 
    for (i = 0; pKbdTbl->pVSCtoVK_E1[i].Vsc; i++)
    {
        if ((pKbdTbl->pVSCtoVK_E1[i].Vk & 0xFF) == wVk)
            return 0xE100 | pKbdTbl->pVSCtoVK_E1[i].Vsc;
    }
 
    /* Virtual key has not been found */
    return 0;
}

Referenced by IntMapVirtualKeyEx().

IntVscToVk()

static WORD FASTCALL IntVscToVk ( WORD  wScanCode, PKBDTABLES  pKbdTbl  )

static

Definition at line 579 of file keyboard.c.

{
    unsigned i;
    WORD wVk = 0;
 
    ASSERT(pKbdTbl);
 
    if ((wScanCode & 0xFF00) == 0xE000)
    {
        for (i = 0; pKbdTbl->pVSCtoVK_E0[i].Vsc; i++)
        {
            if (pKbdTbl->pVSCtoVK_E0[i].Vsc == (wScanCode & 0xFF))
            {
                wVk = pKbdTbl->pVSCtoVK_E0[i].Vk;
            }
        }
    }
    else if ((wScanCode & 0xFF00) == 0xE100)
    {
        for (i = 0; pKbdTbl->pVSCtoVK_E1[i].Vsc; i++)
        {
            if (pKbdTbl->pVSCtoVK_E1[i].Vsc == (wScanCode & 0xFF))
            {
                wVk = pKbdTbl->pVSCtoVK_E1[i].Vk;
            }
        }
    }
    else if (wScanCode < pKbdTbl->bMaxVSCtoVK)
    {
        wVk = pKbdTbl->pusVSCtoVK[wScanCode];
    }
 
    /* 0xFF nad 0x00 are invalid VKs */
    return wVk != 0xFF ? wVk : 0;
}

Referenced by IntMapVirtualKeyEx(), NtUserGetKeyNameText(), UserProcessKeyboardInput(), and UserSendKeyboardInput().

NtUserGetAsyncKeyState()

SHORT APIENTRY NtUserGetAsyncKeyState

(

INT

Key

)

Definition at line 649 of file keyboard.c.

{
    WORD wRet = 0;
 
    TRACE("Enter NtUserGetAsyncKeyState\n");
 
    if (Key >= 0x100 || Key < 0)
    {
        EngSetLastError(ERROR_INVALID_PARAMETER);
        ERR("Invalid parameter Key\n");
        return 0;
    }
 
    UserEnterExclusive();
 
    if (IS_KEY_DOWN(gafAsyncKeyState, Key))
        wRet |= 0x8000; // If down, windows returns 0x8000.
    if (gafAsyncKeyStateRecentDown[Key / 8] & (1 << (Key % 8)))
        wRet |= 0x1;
    gafAsyncKeyStateRecentDown[Key / 8] &= ~(1 << (Key % 8));
 
    UserLeave();
 
    TRACE("Leave NtUserGetAsyncKeyState, ret=%u\n", wRet);
    return wRet;
}

Referenced by GetAsyncKeyState(), and START_TEST().

NtUserGetKeyNameText()

DWORD APIENTRY NtUserGetKeyNameText	(	LONG	lParam,
		LPWSTR	lpString,
		int	cchSize
	)

Definition at line 1807 of file keyboard.c.

{
    PTHREADINFO pti;
    DWORD i, dwRet = 0;
    SIZE_T cchKeyName;
    WORD wScanCode = (lParam >> 16) & 0xFF;
    BOOL bExtKey = (HIWORD(lParam) & KF_EXTENDED) ? TRUE : FALSE;
    PKBDTABLES pKbdTbl;
    VSC_LPWSTR *pKeyNames = NULL;
    CONST WCHAR *pKeyName = NULL;
    WCHAR KeyNameBuf[2];
 
    TRACE("Enter NtUserGetKeyNameText\n");
 
    UserEnterShared();
 
    /* Get current keyboard layout */
    pti = PsGetCurrentThreadWin32Thread();
    pKbdTbl = pti ? pti->KeyboardLayout->spkf->pKbdTbl : NULL;
 
    if (!pKbdTbl || cchSize < 1)
    {
        ERR("Invalid parameter\n");
        goto cleanup;
    }
 
    /* "Do not care" flag */
    if(lParam & LP_DO_NOT_CARE_BIT)
    {
        /* Note: We could do vsc -> vk -> vsc conversion, instead of using
                 hardcoded scan codes, but it's not what Windows does */
        if (wScanCode == SCANCODE_RSHIFT && !bExtKey)
            wScanCode = SCANCODE_LSHIFT;
        else if (wScanCode == SCANCODE_CTRL || wScanCode == SCANCODE_ALT)
            bExtKey = FALSE;
    }
 
    if (bExtKey)
        pKeyNames = pKbdTbl->pKeyNamesExt;
    else
        pKeyNames = pKbdTbl->pKeyNames;
 
    for (i = 0; pKeyNames[i].pwsz; i++)
    {
        if (pKeyNames[i].vsc == wScanCode)
        {
            pKeyName = pKeyNames[i].pwsz;
            break;
        }
    }
 
    if (!pKeyName)
    {
        WORD wVk = IntVscToVk(wScanCode, pKbdTbl);
 
        if (wVk)
        {
            KeyNameBuf[0] = IntVkToChar(wVk, pKbdTbl);
            KeyNameBuf[1] = 0;
            if (KeyNameBuf[0])
                pKeyName = KeyNameBuf;
        }
    }
 
    if (pKeyName)
    {
        cchKeyName = wcslen(pKeyName);
        if (cchKeyName > (cchSize - 1UL))
            cchKeyName = cchSize - 1UL; // Don't count '\0'
 
        _SEH2_TRY
        {
            ProbeForWrite(lpString, (cchKeyName + 1) * sizeof(WCHAR), 1);
            RtlCopyMemory(lpString, pKeyName, cchKeyName * sizeof(WCHAR));
            lpString[cchKeyName] = UNICODE_NULL;
            dwRet = cchKeyName;
        }
        _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
        {
            SetLastNtError(_SEH2_GetExceptionCode());
        }
        _SEH2_END;
    }
    else
    {
        EngSetLastError(ERROR_INVALID_PARAMETER);
    }
 
cleanup:
    UserLeave();
    TRACE("Leave NtUserGetKeyNameText, ret=%lu\n", dwRet);
    return dwRet;
}

Referenced by GetKeyNameTextA(), and GetKeyNameTextW().

NtUserMapVirtualKeyEx()

UINT APIENTRY NtUserMapVirtualKeyEx	(	UINT	uCode,
		UINT	uType,
		DWORD	keyboardId,
		HKL	dwhkl
	)

Definition at line 1662 of file keyboard.c.

{
    PKBDTABLES pKbdTbl = NULL;
    UINT ret = 0;
 
    TRACE("Enter NtUserMapVirtualKeyEx\n");
    UserEnterShared();
 
    if (!dwhkl)
    {
        PTHREADINFO pti;
 
        pti = PsGetCurrentThreadWin32Thread();
        if (pti && pti->KeyboardLayout)
            pKbdTbl = pti->KeyboardLayout->spkf->pKbdTbl;
    }
    else
    {
        PKL pKl;
 
        pKl = UserHklToKbl(dwhkl);
        if (pKl)
            pKbdTbl = pKl->spkf->pKbdTbl;
    }
 
    if (pKbdTbl)
        ret = IntMapVirtualKeyEx(uCode, uType, pKbdTbl);
 
    UserLeave();
    TRACE("Leave NtUserMapVirtualKeyEx, ret=%u\n", ret);
    return ret;
}

Referenced by MapVirtualKeyExA(), MapVirtualKeyExW(), and MapVirtualKeyW().

NtUserToUnicodeEx()

int APIENTRY NtUserToUnicodeEx	(	UINT	wVirtKey,
		UINT	wScanCode,
		PBYTE	pKeyStateUnsafe,
		LPWSTR	pwszBuffUnsafe,
		INT	cchBuff,
		UINT	wFlags,
		HKL	dwhkl
	)

Definition at line 1702 of file keyboard.c.

{
    PTHREADINFO pti;
    BYTE afKeyState[256 * 2 / 8] = {0};
    PWCHAR pwszBuff = NULL;
    INT i, iRet = 0;
    PKL pKl = NULL;
    NTSTATUS Status = STATUS_SUCCESS;
 
    TRACE("Enter NtUserSetKeyboardState\n");
 
    /* Return 0 if SC_KEY_UP bit is set */
    if (wScanCode & SC_KEY_UP || wVirtKey >= 0x100)
    {
        ERR("Invalid parameter\n");
        return 0;
    }
 
    _SEH2_TRY
    {
        /* Probe and copy key state to smaller bitmap */
        ProbeForRead(pKeyStateUnsafe, 256 * sizeof(BYTE), 1);
        for (i = 0; i < 256; ++i)
        {
            if (pKeyStateUnsafe[i] & KS_DOWN_BIT)
                SET_KEY_DOWN(afKeyState, i, TRUE);
            if (pKeyStateUnsafe[i] & KS_LOCK_BIT)
                SET_KEY_LOCKED(afKeyState, i, TRUE);
        }
    }
    _SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
    {
        ERR("Cannot copy key state\n");
        SetLastNtError(_SEH2_GetExceptionCode());
        _SEH2_YIELD(return 0);
    }
    _SEH2_END;
 
    pwszBuff = ExAllocatePoolWithTag(NonPagedPool, sizeof(WCHAR) * cchBuff, TAG_STRING);
    if (!pwszBuff)
    {
        ERR("ExAllocatePoolWithTag(%u) failed\n", sizeof(WCHAR) * cchBuff);
        return 0;
    }
    RtlZeroMemory(pwszBuff, sizeof(WCHAR) * cchBuff);
 
    UserEnterExclusive(); // Note: We modify wchDead static variable
 
    if (dwhkl)
        pKl = UserHklToKbl(dwhkl);
 
    if (!pKl)
    {
        pti = PsGetCurrentThreadWin32Thread();
        pKl = pti->KeyboardLayout;
    }
 
    if (pKl)
    {
        iRet = IntToUnicodeEx(wVirtKey,
                            wScanCode,
                            afKeyState,
                            pwszBuff,
                            cchBuff,
                            wFlags,
                            pKl->spkf->pKbdTbl);
 
        if (iRet)
        {
            Status = MmCopyToCaller(pwszBuffUnsafe, pwszBuff, cchBuff * sizeof(WCHAR));
        }
    }
    else
    {
        ERR("No keyboard layout ?!\n");
        Status = STATUS_INVALID_HANDLE;
    }
 
    ExFreePoolWithTag(pwszBuff, TAG_STRING);
 
    if (!NT_SUCCESS(Status))
    {
        iRet = 0;
        SetLastNtError(Status);
    }
 
    UserLeave();
    TRACE("Leave NtUserSetKeyboardState, ret=%i\n", iRet);
    return iRet;
}

NtUserVkKeyScanEx()

DWORD APIENTRY NtUserVkKeyScanEx	(	WCHAR	wch,
		HKL	dwhkl,
		BOOL	bUsehKL
	)

Definition at line 1932 of file keyboard.c.

{
    PKBDTABLES pKbdTbl;
    PVK_TO_WCHAR_TABLE pVkToWchTbl;
    PVK_TO_WCHARS10 pVkToWch;
    PKL pKl = NULL;
    DWORD i, dwModBits = 0, dwModNumber = 0, Ret = (DWORD)-1;
 
    TRACE("NtUserVkKeyScanEx() wch %u, KbdLayout 0x%p\n", wch, dwhkl);
    UserEnterShared();
 
    if (bUsehKL)
    {
        // Use given keyboard layout
        if (dwhkl)
            pKl = UserHklToKbl(dwhkl);
    }
    else
    {
        // Use thread keyboard layout
        pKl = ((PTHREADINFO)PsGetCurrentThreadWin32Thread())->KeyboardLayout;
    }
 
    if (!pKl)
        goto Exit;
 
    pKbdTbl = pKl->spkf->pKbdTbl;
 
    // Interate through all VkToWchar tables while pVkToWchars is not NULL
    for (i = 0; pKbdTbl->pVkToWcharTable[i].pVkToWchars; i++)
    {
        pVkToWchTbl = &pKbdTbl->pVkToWcharTable[i];
        pVkToWch = (PVK_TO_WCHARS10)(pVkToWchTbl->pVkToWchars);
 
        // Interate through all virtual keys
        while (pVkToWch->VirtualKey)
        {
            for (dwModNumber = 0; dwModNumber < pVkToWchTbl->nModifications; dwModNumber++)
            {
                if (pVkToWch->wch[dwModNumber] == wch)
                {
                    dwModBits = pKbdTbl->pCharModifiers->ModNumber[dwModNumber];
                    TRACE("i %lu wC %04x: dwModBits %08x dwModNumber %08x MaxModBits %08x\n",
                          i, wch, dwModBits, dwModNumber, pKbdTbl->pCharModifiers->wMaxModBits);
                    Ret = (dwModBits << 8) | (pVkToWch->VirtualKey & 0xFF);
                    goto Exit;
                }
            }
            pVkToWch = (PVK_TO_WCHARS10)(((BYTE *)pVkToWch) + pVkToWchTbl->cbSize);
        }
    }
Exit:
    UserLeave();
    return Ret;
}

Referenced by VkKeyScanExA(), VkKeyScanExW(), and VkKeyScanW().

ProcessKeyEvent()

BOOL NTAPI ProcessKeyEvent	(	WORD	wVk,
		WORD	wScanCode,
		DWORD	dwFlags,
		BOOL	bInjected,
		DWORD	dwTime,
		DWORD	dwExtraInfo
	)

Definition at line 1107 of file keyboard.c.

{
    WORD wSimpleVk, wFixedVk, wVk2;
    PUSER_MESSAGE_QUEUE pFocusQueue;
    PTHREADINFO pti;
    BOOL bExt = (dwFlags & KEYEVENTF_EXTENDEDKEY) ? TRUE : FALSE;
    BOOL bIsDown = (dwFlags & KEYEVENTF_KEYUP) ? FALSE : TRUE;
    BOOL bPacket = (dwFlags & KEYEVENTF_UNICODE) ? TRUE : FALSE;
    BOOL bWasSimpleDown = FALSE, bPostMsg = TRUE, bIsSimpleDown;
    MSG Msg;
    static BOOL bMenuDownRecently = FALSE;
    BOOL bLangToggled = FALSE;
 
    /* Get virtual key without shifts (VK_(L|R)* -> VK_*) */
    wSimpleVk = IntSimplifyVk(wVk);
 
    if (PRIMARYLANGID(gusLanguageID) == LANG_JAPANESE)
    {
        /* Japanese special! */
        if (IS_KEY_DOWN(gafAsyncKeyState, VK_SHIFT))
        {
            if (wSimpleVk == VK_OEM_ATTN)
                wSimpleVk = VK_CAPITAL;
            else if (wSimpleVk == VK_OEM_COPY)
                wSimpleVk = VK_OEM_FINISH;
        }
    }
 
    /* Handle Alt+Numpad character composition */
    if (IntHandleAltNumpad(wSimpleVk, bIsDown, dwTime))
        return TRUE;
 
    bWasSimpleDown = IS_KEY_DOWN(gafAsyncKeyState, wSimpleVk);
 
    /* Update key without shifts */
    wVk2 = IntFixVk(wSimpleVk, !bExt);
    bIsSimpleDown = bIsDown || IS_KEY_DOWN(gafAsyncKeyState, wVk2);
    UpdateAsyncKeyState(wSimpleVk, bIsSimpleDown);
 
    if (bIsDown)
    {
        /* Update keyboard LEDs */
        IntKeyboardUpdateLeds(ghKeyboardDevice,
                              wSimpleVk,
                              wScanCode);
    }
 
    /* Call WH_KEYBOARD_LL hook */
    if (co_CallLowLevelKeyboardHook(wVk, wScanCode, dwFlags, bInjected, dwTime, dwExtraInfo))
    {
        ERR("Kbd msg dropped by WH_KEYBOARD_LL hook\n");
        bPostMsg = FALSE;
    }
 
    /* Check if this is a hotkey */
    if (co_UserProcessHotKeys(wSimpleVk, bIsDown)) 
    {
        TRACE("HotKey Processed\n");
        bPostMsg = FALSE;
    }
 
    wFixedVk = IntFixVk(wSimpleVk, bExt); /* LSHIFT + EXT = RSHIFT */
    if (wSimpleVk == VK_SHIFT) /* shift can't be extended */
        bExt = FALSE;
 
    /* If we have a focus queue, post a keyboard message */
    pFocusQueue = IntGetFocusMessageQueue();
    TRACE("ProcessKeyEvent Q 0x%p Active pWnd 0x%p Focus pWnd 0x%p\n",
          pFocusQueue,
          (pFocusQueue ? pFocusQueue->spwndActive : NULL),
          (pFocusQueue ? pFocusQueue->spwndFocus : NULL));
 
    /* If it is F10 or ALT is down and CTRL is up, it's a system key */
    if ( wVk == VK_F10 ||
        (wSimpleVk == VK_MENU && bMenuDownRecently) ||
        (IS_KEY_DOWN(gafAsyncKeyState, VK_MENU) &&
        !IS_KEY_DOWN(gafAsyncKeyState, VK_CONTROL)) ||
         // See MSDN WM_SYSKEYDOWN/UP fixes last wine Win test_keyboard_input.
        (pFocusQueue && !pFocusQueue->spwndFocus) )
    {
        bMenuDownRecently = FALSE; // reset
        if (bIsDown)
        {
            Msg.message = WM_SYSKEYDOWN;
            if (wSimpleVk == VK_MENU)
            {
                // Note: If only LALT is pressed WM_SYSKEYUP is generated instead of WM_KEYUP
                bMenuDownRecently = TRUE;
            }
        }
        else
            Msg.message = WM_SYSKEYUP;
    }
    else
    {
        if (bIsDown)
            Msg.message = WM_KEYDOWN;
        else
            Msg.message = WM_KEYUP;
    }
 
    /* Update async state of not simplified vk here.
       See user32_apitest:GetKeyState */
    UpdateAsyncKeyState(wFixedVk, bIsDown);
 
    /* Alt-Tab/Esc Check. Use FocusQueue or RIT Queue */
    if (bIsSimpleDown && !bWasSimpleDown &&
        IS_KEY_DOWN(gafAsyncKeyState, VK_MENU) &&
        !IS_KEY_DOWN(gafAsyncKeyState, VK_CONTROL) &&
        (wVk == VK_ESCAPE || wVk == VK_TAB))
    {
       TRACE("Alt-Tab/Esc Pressed wParam %x\n",wVk);
    }
 
    /*
     * Check Language/Layout Toggle by [Left Alt]+Shift or Ctrl+Shift.
     * @see https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-2000-server/cc976564%28v=technet.10%29
     */
    if (gdwLanguageToggleKey == 1 || gdwLanguageToggleKey == 2)
    {
        if (wSimpleVk == VK_SHIFT) /* Shift key is pressed or released */
        {
            UINT targetKey = ((gdwLanguageToggleKey == 1) ? VK_LMENU : VK_CONTROL);
            if (IS_KEY_DOWN(gafAsyncKeyState, targetKey))
                bLangToggled = IntCheckLanguageToggle(pFocusQueue, bIsDown, wVk, &gLanguageToggleKeyState);
        }
        else if ((wSimpleVk == VK_MENU && gdwLanguageToggleKey == 1) ||
                 (wSimpleVk == VK_CONTROL && gdwLanguageToggleKey == 2))
        {
            if (IS_KEY_DOWN(gafAsyncKeyState, VK_SHIFT))
                bLangToggled = IntCheckLanguageToggle(pFocusQueue, bIsDown, 0, &gLanguageToggleKeyState);
        }
    }
    if (!bLangToggled && (gdwLayoutToggleKey == 1 || gdwLayoutToggleKey == 2))
    {
        if (wSimpleVk == VK_SHIFT) /* Shift key is pressed or released */
        {
            UINT targetKey = ((gdwLayoutToggleKey == 1) ? VK_LMENU : VK_CONTROL);
            if (IS_KEY_DOWN(gafAsyncKeyState, targetKey))
                IntCheckLanguageToggle(pFocusQueue, bIsDown, wVk, &gLayoutToggleKeyState);
        }
        else if ((wSimpleVk == VK_MENU && gdwLayoutToggleKey == 1) ||
                 (wSimpleVk == VK_CONTROL && gdwLayoutToggleKey == 2))
        {
            if (IS_KEY_DOWN(gafAsyncKeyState, VK_SHIFT))
                IntCheckLanguageToggle(pFocusQueue, bIsDown, 0, &gLayoutToggleKeyState);
        }
    }
 
    if (bIsDown && wVk == VK_SNAPSHOT)
    {
        if (pFocusQueue &&
            IS_KEY_DOWN(gafAsyncKeyState, VK_MENU) &&
            !IS_KEY_DOWN(gafAsyncKeyState, VK_CONTROL))
        {
            // Snap from Active Window, Focus can be null.
            SnapWindow(pFocusQueue->spwndActive ? UserHMGetHandle(pFocusQueue->spwndActive) : NULL);
        }
        else
            SnapWindow(NULL); // Snap Desktop.
    }
    else if (pFocusQueue && bPostMsg)
    {
        PWND Wnd = pFocusQueue->spwndFocus; // SysInit.....
 
        pti = pFocusQueue->ptiKeyboard;
 
        if (!Wnd && pFocusQueue->spwndActive) // SysInit.....
        {
           // Going with Active. WM_SYSKEYXXX last wine Win test_keyboard_input.
           Wnd = pFocusQueue->spwndActive;
        }
        if (Wnd) pti = Wnd->head.pti;
 
        /* Init message */
        Msg.hwnd = Wnd ? UserHMGetHandle(Wnd) : NULL;
        Msg.wParam = wFixedVk & 0xFF; /* Note: It's simplified by msg queue */
        Msg.lParam = MAKELPARAM(1, wScanCode);
        Msg.time = dwTime;
        Msg.pt = gpsi->ptCursor;
 
        if ( Msg.message == WM_KEYDOWN || Msg.message == WM_SYSKEYDOWN )
        {
           if ( (Msg.wParam == VK_SHIFT ||
                 Msg.wParam == VK_CONTROL ||
                 Msg.wParam == VK_MENU ) &&
               !IS_KEY_DOWN(gafAsyncKeyState, Msg.wParam))
           {
              ERR("Set last input\n");
              //ptiLastInput = pti;
           }
        }
 
        /* If it is VK_PACKET, high word of wParam is used for wchar */
        if (!bPacket)
        {
            if (bExt)
                Msg.lParam |= KF_EXTENDED << 16;
            if (IS_KEY_DOWN(gafAsyncKeyState, VK_MENU))
                Msg.lParam |= KF_ALTDOWN << 16;
            if (bWasSimpleDown)
                Msg.lParam |= KF_REPEAT << 16;
            if (!bIsDown)
                Msg.lParam |= KF_UP << 16;
            /* FIXME: Set KF_DLGMODE and KF_MENUMODE when needed */
            if (pFocusQueue->QF_flags & QF_DIALOGACTIVE)
                Msg.lParam |= KF_DLGMODE << 16;
            if (pFocusQueue->MenuOwner) // pti->pMenuState->fMenuStarted
                Msg.lParam |= KF_MENUMODE << 16;
        }
 
        // Post mouse move before posting key buttons, to keep it syned.
        if (pFocusQueue->QF_flags & QF_MOUSEMOVED)
        {
           IntCoalesceMouseMove(pti);
        }
 
        /* Post a keyboard message */
        TRACE("Posting keyboard msg %u wParam 0x%x lParam 0x%x\n", Msg.message, Msg.wParam, Msg.lParam);
        if (!Wnd) {ERR("Window is NULL\n");}
        MsqPostMessage(pti, &Msg, TRUE, QS_KEY, 0, dwExtraInfo);
    }
    return TRUE;
}

Referenced by UserSendKeyboardInput().

SnapWindow()

static VOID SnapWindow ( HWND  hWnd )

static

Definition at line 740 of file keyboard.c.

{
    HBITMAP hbm = NULL, hbmOld;
    HDC hdc = NULL, hdcMem;
    SETCLIPBDATA scd;
    INT cx, cy;
    PWND pWnd = NULL;
 
    TRACE("SnapWindow(%p)\n", hWnd);
 
    /* If no windows is given, make snapshot of desktop window */
    if (!hWnd)
        hWnd = IntGetDesktopWindow();
 
    pWnd = UserGetWindowObject(hWnd);
    if (!pWnd)
    {
        ERR("Invalid window\n");
        goto cleanup;
    }
 
    hdc = UserGetDCEx(pWnd, NULL, DCX_USESTYLE | DCX_WINDOW);
    if (!hdc)
    {
        ERR("UserGetDCEx failed!\n");
        goto cleanup;
    }
 
    cx = pWnd->rcWindow.right - pWnd->rcWindow.left;
    cy = pWnd->rcWindow.bottom - pWnd->rcWindow.top;
 
    hbm = NtGdiCreateCompatibleBitmap(hdc, cx, cy);
    if (!hbm)
    {
        ERR("NtGdiCreateCompatibleBitmap failed!\n");
        goto cleanup;
    }
 
    hdcMem = NtGdiCreateCompatibleDC(hdc);
    if (!hdcMem)
    {
        ERR("NtGdiCreateCompatibleDC failed!\n");
        goto cleanup;
    }
 
    hbmOld = NtGdiSelectBitmap(hdcMem, hbm);
    NtGdiBitBlt(hdcMem, 0, 0, cx, cy, hdc, 0, 0, SRCCOPY, CLR_INVALID, 0);
    NtGdiSelectBitmap(hdcMem, hbmOld);
    IntGdiDeleteDC(hdcMem, FALSE);
 
    /* Save snapshot in clipboard */
    if (UserOpenClipboard(NULL))
    {
        UserEmptyClipboard();
        scd.fIncSerialNumber = TRUE;
        scd.fGlobalHandle = FALSE;
        if (UserSetClipboardData(CF_BITMAP, hbm, &scd))
        {
            /* Bitmap is managed by system now */
            hbm = NULL;
        }
        UserCloseClipboard();
    }
 
cleanup:
    if (hbm)
        GreDeleteObject(hbm);
    if (hdc)
        UserReleaseDC(pWnd, hdc, FALSE);
}

Referenced by ProcessKeyEvent().

UpdateAsyncKeyState()

static VOID NTAPI UpdateAsyncKeyState ( WORD  wVk, BOOL  bIsDown  )

static

Definition at line 683 of file keyboard.c.

{
    if (bIsDown)
    {
        /* If it's first key down event, xor lock bit */
        if (!IS_KEY_DOWN(gafAsyncKeyState, wVk))
            SET_KEY_LOCKED(gafAsyncKeyState, wVk, !IS_KEY_LOCKED(gafAsyncKeyState, wVk));
 
        SET_KEY_DOWN(gafAsyncKeyState, wVk, TRUE);
        gafAsyncKeyStateRecentDown[wVk / 8] |= (1 << (wVk % 8));
    }
    else
        SET_KEY_DOWN(gafAsyncKeyState, wVk, FALSE);
}

Referenced by ProcessKeyEvent().

UserGetKeyboardType()

DWORD FASTCALL UserGetKeyboardType

(

DWORD

dwTypeFlag

)

Definition at line 1907 of file keyboard.c.

{
    switch (dwTypeFlag)
    {
        case 0:        /* Keyboard type */
            return (DWORD)gKeyboardInfo.KeyboardIdentifier.Type;
        case 1:        /* Keyboard Subtype */
            return (DWORD)gKeyboardInfo.KeyboardIdentifier.Subtype;
        case 2:        /* Number of F-keys */
            return (DWORD)gKeyboardInfo.NumberOfFunctionKeys;
        default:
            ERR("Unknown type!\n");
            return 0;    /* Note: we don't have to set last error here */
    }
}

Referenced by NtUserCallOneParam().

UserInitKeyboard()

VOID NTAPI UserInitKeyboard

(

HANDLE

hKeyboardDevice

)

Definition at line 178 of file keyboard.c.

{
    NTSTATUS Status;
    IO_STATUS_BLOCK Block;
 
    IntKeyboardGetIndicatorTrans(hKeyboardDevice, &gpKeyboardIndicatorTrans);
 
    Status = ZwDeviceIoControlFile(hKeyboardDevice,
                                   NULL,
                                   NULL,
                                   NULL,
                                   &Block,
                                   IOCTL_KEYBOARD_QUERY_INDICATORS,
                                   NULL, 0,
                                   &gIndicators,
                                   sizeof(gIndicators));
 
    if (!NT_SUCCESS(Status))
    {
        WARN("NtDeviceIoControlFile() failed, ignored\n");
        gIndicators.LedFlags = 0;
        gIndicators.UnitId = 0;
    }
 
    SET_KEY_LOCKED(gafAsyncKeyState, VK_CAPITAL,
                   gIndicators.LedFlags & KEYBOARD_CAPS_LOCK_ON);
    SET_KEY_LOCKED(gafAsyncKeyState, VK_NUMLOCK,
                   gIndicators.LedFlags & KEYBOARD_NUM_LOCK_ON);
    SET_KEY_LOCKED(gafAsyncKeyState, VK_SCROLL,
                   gIndicators.LedFlags & KEYBOARD_SCROLL_LOCK_ON);
 
    // FIXME: Need device driver to work! HID support more than one!!!!
    Status = ZwDeviceIoControlFile(hKeyboardDevice,
                                   NULL,
                                   NULL,
                                   NULL,
                                   &Block,
                                   IOCTL_KEYBOARD_QUERY_ATTRIBUTES,
                                   NULL, 0,
                                   &gKeyboardInfo, sizeof(gKeyboardInfo));
 
    if (!NT_SUCCESS(Status))
    {
        ERR("NtDeviceIoControlFile() failed, ignored\n");
    }
    TRACE("Keyboard type %u, subtype %u and number of func keys %u\n",
             gKeyboardInfo.KeyboardIdentifier.Type,
             gKeyboardInfo.KeyboardIdentifier.Subtype,
             gKeyboardInfo.NumberOfFunctionKeys);
}

Referenced by RawInputThreadMain().

UserProcessKeyboardInput()

VOID NTAPI UserProcessKeyboardInput

(

PKEYBOARD_INPUT_DATA

pKbdInputData

)

Definition at line 1414 of file keyboard.c.

{
    WORD wScanCode, wVk;
    PKL pKl = NULL;
    PKBDTABLES pKbdTbl;
    PUSER_MESSAGE_QUEUE pFocusQueue;
 
    /* Calculate scan code with prefix */
    wScanCode = pKbdInputData->MakeCode & 0x7F;
    if (pKbdInputData->Flags & KEY_E0)
        wScanCode |= 0xE000;
    if (pKbdInputData->Flags & KEY_E1)
        wScanCode |= 0xE100;
 
    /* Find the target thread whose locale is in effect */
    pFocusQueue = IntGetFocusMessageQueue();
 
    if (pFocusQueue && pFocusQueue->ptiKeyboard)
    {
        pKl = pFocusQueue->ptiKeyboard->KeyboardLayout;
    }
 
    if (!pKl)
        pKl = W32kGetDefaultKeyLayout();
    if (!pKl)
        return;
 
    pKbdTbl = pKl->spkf->pKbdTbl;
 
    /* Convert scan code to virtual key.
       Note: We could call UserSendKeyboardInput using scan code,
             but it wouldn't interpret E1 key(s) properly */
    wVk = IntVscToVk(wScanCode, pKbdTbl);
    TRACE("UserProcessKeyboardInput: %x (break: %u) -> %x\n",
          wScanCode, (pKbdInputData->Flags & KEY_BREAK) ? 1u : 0, wVk);
 
    if (wVk)
    {
        KEYBDINPUT KbdInput;
 
        /* Support numlock */
        if ((wVk & KBDNUMPAD) && IS_KEY_LOCKED(gafAsyncKeyState, VK_NUMLOCK))
        {
            wVk = IntTranslateNumpadKey(wVk & 0xFF);
        }
 
        /* Send keyboard input */
        KbdInput.wVk = wVk & 0xFF;
        KbdInput.wScan = wScanCode & 0x7F;
        KbdInput.dwFlags = 0;
        if (pKbdInputData->Flags & KEY_BREAK)
            KbdInput.dwFlags |= KEYEVENTF_KEYUP;
 
        if (wVk & KBDEXT)
            KbdInput.dwFlags |= KEYEVENTF_EXTENDEDKEY;
        //
        // Based on wine input:test_Input_blackbox this is okay. It seems the
        // bit did not get set and more research is needed. Now the right
        // shift works.
        //
        if (wVk == VK_RSHIFT)
            KbdInput.dwFlags |= KEYEVENTF_EXTENDEDKEY;
 
        KbdInput.time = 0;
        KbdInput.dwExtraInfo = pKbdInputData->ExtraInformation;
        UserSendKeyboardInput(&KbdInput, FALSE);
 
        /* E1 keys don't have break code */
        if (pKbdInputData->Flags & KEY_E1)
        {
            /* Send key up event */
            KbdInput.dwFlags |= KEYEVENTF_KEYUP;
            UserSendKeyboardInput(&KbdInput, FALSE);
        }
    }
}

Referenced by RawInputThreadMain().

UserSendKeyboardInput()

BOOL NTAPI UserSendKeyboardInput	(	KEYBDINPUT *	pKbdInput,
		BOOL	bInjected
	)

Definition at line 1333 of file keyboard.c.

{
    WORD wScanCode, wVk;
    PKL pKl = NULL;
    PKBDTABLES pKbdTbl;
    PUSER_MESSAGE_QUEUE pFocusQueue;
    DWORD dwTime;
    BOOL bExt = (pKbdInput->dwFlags & KEYEVENTF_EXTENDEDKEY) ? TRUE : FALSE;
 
    gppiInputProvider = ((PTHREADINFO)PsGetCurrentThreadWin32Thread())->ppi;
 
    /* Find the target thread whose locale is in effect */
    pFocusQueue = IntGetFocusMessageQueue();
 
    if (pFocusQueue && pFocusQueue->ptiKeyboard)
    {
        pKl = pFocusQueue->ptiKeyboard->KeyboardLayout;
    }
 
    if (!pKl)
        pKl = W32kGetDefaultKeyLayout();
    if (!pKl)
    {
        ERR("No keyboard layout!\n");
        return FALSE;
    }
 
    pKbdTbl = pKl->spkf->pKbdTbl;
 
    /* Note: wScan field is always used */
    wScanCode = pKbdInput->wScan;
 
    if (pKbdInput->dwFlags & KEYEVENTF_UNICODE)
    {
        /* Generate WM_KEYDOWN msg with wParam == VK_PACKET and
           high order word of lParam == pKbdInput->wScan */
        wVk = VK_PACKET;
    }
    else
    {
        wScanCode &= 0x7F;
        if (pKbdInput->dwFlags & KEYEVENTF_SCANCODE)
        {
            /* Don't ignore invalid scan codes */
            wVk = IntVscToVk(wScanCode | (bExt ? 0xE000 : 0), pKbdTbl);
            if (!wVk) /* use 0xFF if vsc is invalid */
                wVk = 0xFF;
        }
        else
        {
            wVk = pKbdInput->wVk;
        }
 
        /* Remove all virtual key flags (KBDEXT, KBDMULTIVK, KBDSPECIAL, KBDNUMPAD) */
        wVk &= 0xFF;
    }
 
    /* If time is given, use it */
    if (pKbdInput->time)
        dwTime = pKbdInput->time;
    else
    {
        dwTime = EngGetTickCount32();
    }
 
    if (wVk == VK_RMENU && (pKbdTbl->fLocaleFlags & KLLF_ALTGR))
    {
        /* For AltGr keyboards RALT generates CTRL events */
        ProcessKeyEvent(VK_LCONTROL, 0, pKbdInput->dwFlags & KEYEVENTF_KEYUP, bInjected, dwTime, 0);
    }
 
    /* Finally process this key */
    return ProcessKeyEvent(wVk, wScanCode, pKbdInput->dwFlags, bInjected, dwTime, pKbdInput->dwExtraInfo);
}

Referenced by NtUserSendInput(), and UserProcessKeyboardInput().

Variable Documentation

gafAsyncKeyState

BYTE gafAsyncKeyState[256 *2/8]

Definition at line 13 of file keyboard.c.

Referenced by co_CallLowLevelKeyboardHook(), co_UserProcessHotKeys(), InitKeyboardImpl(), IntCheckLanguageToggle(), IntDefWindowProc(), IntHandleAltNumpad(), MsqInitializeMessageQueue(), NtUserGetAsyncKeyState(), ProcessKeyEvent(), UpdateAsyncKeyState(), UserAttachThreadInput(), UserGetMouseButtonsState(), UserInitKeyboard(), UserProcessKeyboardInput(), and UserSendMouseInput().

gafAsyncKeyStateRecentDown

BYTE gafAsyncKeyStateRecentDown[256/8]

static

Definition at line 14 of file keyboard.c.

Referenced by InitKeyboardImpl(), NtUserGetAsyncKeyState(), and UpdateAsyncKeyState().

gAltNumPadState

enum _ALTNUM_STATE gAltNumPadState = ALTNUM_INACTIVE

static

Referenced by IntHandleAltNumpad().

gAltNumPadValue

ULONG gAltNumPadValue = 0

static

Definition at line 35 of file keyboard.c.

Referenced by IntHandleAltNumpad().

gbEnableHexNumpad

BOOL gbEnableHexNumpad = FALSE

Definition at line 36 of file keyboard.c.

Referenced by IntHandleAltNumpad(), and SpiUpdatePerUserSystemParameters().

gdwLanguageToggleKey

DWORD gdwLanguageToggleKey = 1

Definition at line 19 of file keyboard.c.

Referenced by ProcessKeyEvent(), SpiGetSet(), and SpiUpdatePerUserSystemParameters().

gdwLayoutToggleKey

DWORD gdwLayoutToggleKey = 2

Definition at line 21 of file keyboard.c.

Referenced by ProcessKeyEvent(), SpiGetSet(), and SpiUpdatePerUserSystemParameters().

gIndicators

KEYBOARD_INDICATOR_PARAMETERS gIndicators = {0, 0}

static

Definition at line 16 of file keyboard.c.

Referenced by IntKeyboardUpdateLeds(), and UserInitKeyboard().

gKeyboardInfo

KEYBOARD_ATTRIBUTES gKeyboardInfo

Definition at line 17 of file keyboard.c.

Referenced by InitKeyboardImpl(), SetDebugHotKeys(), UserGetKeyboardType(), and UserInitKeyboard().

gLanguageToggleKeyState

INT gLanguageToggleKeyState = 0

static

Definition at line 18 of file keyboard.c.

Referenced by ProcessKeyEvent().

gLayoutToggleKeyState

INT gLayoutToggleKeyState = 0

static

Definition at line 20 of file keyboard.c.

Referenced by IntCheckLanguageToggle(), and ProcessKeyEvent().

gpKeyboardIndicatorTrans

PKEYBOARD_INDICATOR_TRANSLATION gpKeyboardIndicatorTrans = NULL

static

Definition at line 15 of file keyboard.c.

Referenced by IntKeyboardUpdateLeds(), and UserInitKeyboard().