kbswitch.c File Reference

#include "kbswitch.h"
#include <shlobj.h>
#include <shlwapi_undoc.h>
#include <imm.h>

Include dependency graph for kbswitch.c:

Go to the source code of this file.

Classes
struct	SPECIAL_ID
struct	tagLOAD_ICON

Macros
#define	IME_MASK   (0xE0000000UL)
#define	SPECIAL_MASK   (0xF0000000UL)
#define	IS_IME_HKL(hKL)   ((((ULONG_PTR)(hKL)) & 0xF0000000) == IME_MASK)
#define	IS_SPECIAL_HKL(hKL)   ((((ULONG_PTR)(hKL)) & 0xF0000000) == SPECIAL_MASK)
#define	SPECIALIDFROMHKL(hKL)   ((WORD)(HIWORD(hKL) & 0x0FFF))
#define	WM_NOTIFYICONMSG   (WM_USER + 248)

Typedefs
typedef struct SPECIAL_ID *	PSPECIAL_ID
typedef struct tagLOAD_ICON	LOAD_ICON
typedef struct tagLOAD_ICON *	PLOAD_ICON

Functions
static VOID	LoadSpecialIds (VOID)
static VOID	GetKLIDFromHKL (HKL hKL, LPTSTR szKLID, SIZE_T KLIDLength)
static VOID	UpdateLayoutList (HKL hKL OPTIONAL)
static HKL	GetHKLFromLayoutNum (INT nLayoutNum)
static VOID	GetKLIDFromLayoutNum (INT nLayoutNum, LPTSTR szKLID, SIZE_T KLIDLength)
static BOOL	GetSystemLibraryPath (LPTSTR szPath, SIZE_T cchPath, LPCTSTR FileName)
static BOOL	GetLayoutName (INT nLayoutNum, LPTSTR szName, SIZE_T NameLength)
static BOOL	GetImeFile (LPTSTR szImeFile, SIZE_T cchImeFile, LPCTSTR szKLID)
static BOOL CALLBACK	EnumResNameProc (HMODULE hModule, LPCTSTR lpszType, LPTSTR lpszName, LPARAM lParam)
static HICON	FakeExtractIcon (LPCTSTR szIconPath, INT cxIcon, INT cyIcon)
static HBITMAP	BitmapFromIcon (HICON hIcon)
static HICON	CreateTrayIcon (LPTSTR szKLID, LPCTSTR szImeFile OPTIONAL)
static VOID	AddTrayIcon (HWND hwnd)
static VOID	DeleteTrayIcon (HWND hwnd)
static VOID	UpdateTrayIcon (HWND hwnd, LPTSTR szKLID, LPTSTR szName)
static BOOL CALLBACK	EnumWindowsProc (HWND hwnd, LPARAM lParam)
static VOID	ActivateLayout (HWND hwnd, ULONG uLayoutNum, HWND hwndTarget OPTIONAL, BOOL bNoActivate)
static HMENU	BuildLeftPopupMenu (VOID)
BOOL	SetHooks (VOID)
VOID	DeleteHooks (VOID)
static UINT	GetLayoutNum (HKL hKL)
ULONG	GetNextLayout (VOID)
UINT	UpdateLanguageDisplay (HWND hwnd, HKL hKL)
HWND	GetTargetWindow (HWND hwndFore)
UINT	UpdateLanguageDisplayCurrent (HWND hwnd, HWND hwndFore)
static BOOL	RememberLastActive (HWND hwnd, HWND hwndFore)
LRESULT CALLBACK	WndProc (HWND hwnd, UINT Message, WPARAM wParam, LPARAM lParam)
INT WINAPI	_tWinMain (HINSTANCE hInstance, HINSTANCE hPrevInst, LPTSTR lpCmdLine, INT nCmdShow)

Variables
PKBSWITCHSETHOOKS	KbSwitchSetHooks = NULL
PKBSWITCHDELETEHOOKS	KbSwitchDeleteHooks = NULL
UINT	ShellHookMessage = 0
HINSTANCE	hInst
HANDLE	hProcessHeap
HMODULE	g_hHookDLL = NULL
INT	g_nCurrentLayoutNum = 1
HICON	g_hTrayIcon = NULL
HWND	g_hwndLastActive = NULL
INT	g_cKLs = 0
HKL	g_ahKLs [64]
SPECIAL_ID	g_SpecialIds [80]
INT	g_cSpecialIds = 0

Macro Definition Documentation

IME_MASK

#define IME_MASK   (0xE0000000UL)

Definition at line 29 of file kbswitch.c.

IS_IME_HKL

#define IS_IME_HKL

(

hKL

)

((((ULONG_PTR)(hKL)) & 0xF0000000) == IME_MASK)

Definition at line 32 of file kbswitch.c.

IS_SPECIAL_HKL

#define IS_SPECIAL_HKL

(

hKL

)

((((ULONG_PTR)(hKL)) & 0xF0000000) == SPECIAL_MASK)

Definition at line 33 of file kbswitch.c.

SPECIAL_MASK

#define SPECIAL_MASK   (0xF0000000UL)

Definition at line 30 of file kbswitch.c.

SPECIALIDFROMHKL

#define SPECIALIDFROMHKL

(

hKL

)

((WORD)(HIWORD(hKL) & 0x0FFF))

Definition at line 34 of file kbswitch.c.

WM_NOTIFYICONMSG

#define WM_NOTIFYICONMSG   (WM_USER + 248)

Definition at line 36 of file kbswitch.c.

Typedef Documentation

LOAD_ICON

typedef struct tagLOAD_ICON LOAD_ICON

PLOAD_ICON

typedef struct tagLOAD_ICON * PLOAD_ICON

PSPECIAL_ID

typedef struct SPECIAL_ID * PSPECIAL_ID

Function Documentation

_tWinMain()

INT WINAPI _tWinMain	(	HINSTANCE	hInstance,
		HINSTANCE	hPrevInst,
		LPTSTR	lpCmdLine,
		INT	nCmdShow
	)

Definition at line 880 of file kbswitch.c.

{
    WNDCLASS WndClass;
    MSG msg;
    HANDLE hMutex;
    HWND hwnd;
 
    switch (GetUserDefaultUILanguage())
    {
        case MAKELANGID(LANG_HEBREW, SUBLANG_DEFAULT):
            SetProcessDefaultLayout(LAYOUT_RTL);
            break;
        default:
            break;
    }
 
    hMutex = CreateMutex(NULL, FALSE, szKbSwitcherName);
    if (!hMutex)
        return 1;
 
    if (GetLastError() == ERROR_ALREADY_EXISTS)
    {
        CloseHandle(hMutex);
        return 1;
    }
 
    hInst = hInstance;
    hProcessHeap = GetProcessHeap();
 
    ZeroMemory(&WndClass, sizeof(WndClass));
    WndClass.lpfnWndProc   = WndProc;
    WndClass.hInstance     = hInstance;
    WndClass.hCursor       = LoadCursor(NULL, IDC_ARROW);
    WndClass.lpszClassName = szKbSwitcherName;
    if (!RegisterClass(&WndClass))
    {
        CloseHandle(hMutex);
        return 1;
    }
 
    hwnd = CreateWindow(szKbSwitcherName, NULL, 0, 0, 0, 1, 1, HWND_DESKTOP, NULL, hInstance, NULL);
    ShellHookMessage = RegisterWindowMessage(L"SHELLHOOK");
    RegisterShellHookWindow(hwnd);
 
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
 
    CloseHandle(hMutex);
    return 0;
}

ActivateLayout()

static VOID ActivateLayout ( HWND  hwnd, ULONG  uLayoutNum, HWND hwndTarget  OPTIONAL, BOOL  bNoActivate  )

static

Definition at line 485 of file kbswitch.c.

{
    HKL hKl;
    TCHAR szKLID[CCH_LAYOUT_ID + 1], szLangName[MAX_PATH];
    LANGID LangID;
 
    /* The layout number starts from one. Zero is invalid */
    if (uLayoutNum == 0 || uLayoutNum > 0xFF) /* Invalid */
        return;
 
    GetKLIDFromLayoutNum(uLayoutNum, szKLID, ARRAYSIZE(szKLID));
    LangID = (LANGID)_tcstoul(szKLID, NULL, 16);
 
    /* Switch to the new keyboard layout */
    GetLocaleInfo(LangID, LOCALE_SLANGUAGE, szLangName, ARRAYSIZE(szLangName));
    UpdateTrayIcon(hwnd, szKLID, szLangName);
 
    if (hwndTarget && !bNoActivate)
        SetForegroundWindow(hwndTarget);
 
    hKl = LoadKeyboardLayout(szKLID, KLF_ACTIVATE);
    if (hKl)
        ActivateKeyboardLayout(hKl, KLF_SETFORPROCESS);
 
    /* Post WM_INPUTLANGCHANGEREQUEST */
    if (hwndTarget)
    {
        PostMessage(hwndTarget, WM_INPUTLANGCHANGEREQUEST,
                    INPUTLANGCHANGE_SYSCHARSET, (LPARAM)hKl);
    }
    else
    {
        EnumWindows(EnumWindowsProc, (LPARAM) hKl);
    }
 
    g_nCurrentLayoutNum = uLayoutNum;
}

Referenced by WndProc().

AddTrayIcon()

static VOID AddTrayIcon ( HWND  hwnd )

static

Definition at line 425 of file kbswitch.c.

{
    NOTIFYICONDATA tnid = { sizeof(tnid), hwnd, 1, NIF_ICON | NIF_MESSAGE | NIF_TIP };
    TCHAR szKLID[CCH_LAYOUT_ID + 1], szName[MAX_PATH], szImeFile[80];
 
    GetKLIDFromLayoutNum(g_nCurrentLayoutNum, szKLID, ARRAYSIZE(szKLID));
    GetLayoutName(g_nCurrentLayoutNum, szName, ARRAYSIZE(szName));
    GetImeFile(szImeFile, ARRAYSIZE(szImeFile), szKLID);
 
    tnid.uCallbackMessage = WM_NOTIFYICONMSG;
    tnid.hIcon = CreateTrayIcon(szKLID, szImeFile);
    StringCchCopy(tnid.szTip, ARRAYSIZE(tnid.szTip), szName);
 
    Shell_NotifyIcon(NIM_ADD, &tnid);
 
    if (g_hTrayIcon)
        DestroyIcon(g_hTrayIcon);
    g_hTrayIcon = tnid.hIcon;
}

Referenced by WndProc().

BitmapFromIcon()

static HBITMAP BitmapFromIcon ( HICON  hIcon )

static

Definition at line 306 of file kbswitch.c.

{
    HDC hdcScreen = GetDC(NULL);
    HDC hdc = CreateCompatibleDC(hdcScreen);
    INT cxIcon = GetSystemMetrics(SM_CXSMICON);
    INT cyIcon = GetSystemMetrics(SM_CYSMICON);
    HBITMAP hbm = CreateCompatibleBitmap(hdcScreen, cxIcon, cyIcon);
    HGDIOBJ hbmOld;
 
    if (hbm != NULL)
    {
        hbmOld = SelectObject(hdc, hbm);
        DrawIconEx(hdc, 0, 0, hIcon, cxIcon, cyIcon, 0, GetSysColorBrush(COLOR_MENU), DI_NORMAL);
        SelectObject(hdc, hbmOld);
    }
 
    DeleteDC(hdc);
    ReleaseDC(NULL, hdcScreen);
    return hbm;
}

Referenced by BuildLeftPopupMenu(), and FileTypesDlg_OnItemChanging().

BuildLeftPopupMenu()

static HMENU BuildLeftPopupMenu ( VOID  )

static

Definition at line 524 of file kbswitch.c.

{
    HMENU hMenu = CreatePopupMenu();
    TCHAR szName[MAX_PATH], szKLID[CCH_LAYOUT_ID + 1], szImeFile[80];
    HICON hIcon;
    MENUITEMINFO mii = { sizeof(mii) };
    INT iKL;
 
    for (iKL = 0; iKL < g_cKLs; ++iKL)
    {
        GetKLIDFromHKL(g_ahKLs[iKL], szKLID, ARRAYSIZE(szKLID));
        GetImeFile(szImeFile, ARRAYSIZE(szImeFile), szKLID);
 
        if (!GetLayoutName(iKL + 1, szName, ARRAYSIZE(szName)))
            continue;
 
        mii.fMask       = MIIM_ID | MIIM_STRING;
        mii.wID         = iKL + 1;
        mii.dwTypeData  = szName;
 
        hIcon = CreateTrayIcon(szKLID, szImeFile);
        if (hIcon)
        {
            mii.hbmpItem = BitmapFromIcon(hIcon);
            if (mii.hbmpItem)
                mii.fMask |= MIIM_BITMAP;
        }
 
        InsertMenuItem(hMenu, -1, TRUE, &mii);
        DestroyIcon(hIcon);
    }
 
    CheckMenuItem(hMenu, g_nCurrentLayoutNum, MF_CHECKED);
 
    return hMenu;
}

Referenced by WndProc().

CreateTrayIcon()

static HICON CreateTrayIcon ( LPTSTR  szKLID, LPCTSTR szImeFile  OPTIONAL  )

static

Definition at line 328 of file kbswitch.c.

{
    LANGID LangID;
    TCHAR szBuf[4];
    HDC hdcScreen, hdc;
    HBITMAP hbmColor, hbmMono, hBmpOld;
    HFONT hFont, hFontOld;
    LOGFONT lf;
    RECT rect;
    ICONINFO IconInfo;
    HICON hIcon;
    INT cxIcon = GetSystemMetrics(SM_CXSMICON);
    INT cyIcon = GetSystemMetrics(SM_CYSMICON);
    TCHAR szPath[MAX_PATH];
 
    if (szImeFile && szImeFile[0])
    {
        if (GetSystemLibraryPath(szPath, ARRAYSIZE(szPath), szImeFile))
            return FakeExtractIcon(szPath, cxIcon, cyIcon);
    }
 
    /* Getting "EN", "FR", etc. from English, French, ... */
    LangID = LANGIDFROMLCID(_tcstoul(szKLID, NULL, 16));
    if (GetLocaleInfo(LangID,
                      LOCALE_SABBREVLANGNAME | LOCALE_NOUSEROVERRIDE,
                      szBuf,
                      ARRAYSIZE(szBuf)) == 0)
    {
        szBuf[0] = szBuf[1] = _T('?');
    }
    szBuf[2] = 0; /* Truncate the identifier to two characters: "ENG" --> "EN" etc. */
 
    /* Create hdc, hbmColor and hbmMono */
    hdcScreen = GetDC(NULL);
    hdc = CreateCompatibleDC(hdcScreen);
    hbmColor = CreateCompatibleBitmap(hdcScreen, cxIcon, cyIcon);
    ReleaseDC(NULL, hdcScreen);
    hbmMono = CreateBitmap(cxIcon, cyIcon, 1, 1, NULL);
 
    /* Checking NULL */
    if (!hdc || !hbmColor || !hbmMono)
    {
        if (hbmMono)
            DeleteObject(hbmMono);
        if (hbmColor)
            DeleteObject(hbmColor);
        if (hdc)
            DeleteDC(hdc);
        return NULL;
    }
 
    /* Create a font */
    hFont = NULL;
    if (SystemParametersInfo(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0))
    {
        /* Override the current size with something manageable */
        lf.lfHeight = -11;
        lf.lfWidth = 0;
        hFont = CreateFontIndirect(&lf);
    }
    if (!hFont)
        hFont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
 
    SetRect(&rect, 0, 0, cxIcon, cyIcon);
 
    /* Draw hbmColor */
    hBmpOld = SelectObject(hdc, hbmColor);
    SetDCBrushColor(hdc, GetSysColor(COLOR_HIGHLIGHT));
    FillRect(hdc, &rect, (HBRUSH)GetStockObject(DC_BRUSH));
    hFontOld = SelectObject(hdc, hFont);
    SetTextColor(hdc, GetSysColor(COLOR_HIGHLIGHTTEXT));
    SetBkMode(hdc, TRANSPARENT);
    DrawText(hdc, szBuf, 2, &rect, DT_SINGLELINE | DT_CENTER | DT_VCENTER);
    SelectObject(hdc, hFontOld);
 
    /* Fill hbmMono with black */
    SelectObject(hdc, hbmMono);
    PatBlt(hdc, 0, 0, cxIcon, cyIcon, BLACKNESS);
    SelectObject(hdc, hBmpOld);
 
    /* Create an icon from hbmColor and hbmMono */
    IconInfo.fIcon = TRUE;
    IconInfo.xHotspot = IconInfo.yHotspot = 0;
    IconInfo.hbmColor = hbmColor;
    IconInfo.hbmMask = hbmMono;
    hIcon = CreateIconIndirect(&IconInfo);
 
    /* Clean up */
    DeleteObject(hFont);
    DeleteObject(hbmMono);
    DeleteObject(hbmColor);
    DeleteDC(hdc);
 
    return hIcon;
}

Referenced by AddTrayIcon(), BuildLeftPopupMenu(), and UpdateTrayIcon().

DeleteHooks()

VOID DeleteHooks

(

VOID

)

Definition at line 582 of file kbswitch.c.

{
    if (KbSwitchDeleteHooks)
    {
        KbSwitchDeleteHooks();
        KbSwitchDeleteHooks = NULL;
    }
    if (g_hHookDLL)
    {
        FreeLibrary(g_hHookDLL);
        g_hHookDLL = NULL;
    }
}

Referenced by WndProc().

DeleteTrayIcon()

static VOID DeleteTrayIcon ( HWND  hwnd )

static

Definition at line 446 of file kbswitch.c.

{
    NOTIFYICONDATA tnid = { sizeof(tnid), hwnd, 1 };
    Shell_NotifyIcon(NIM_DELETE, &tnid);
 
    if (g_hTrayIcon)
    {
        DestroyIcon(g_hTrayIcon);
        g_hTrayIcon = NULL;
    }
}

Referenced by WndProc().

EnumResNameProc()

static BOOL CALLBACK EnumResNameProc ( HMODULE  hModule, LPCTSTR  lpszType, LPTSTR  lpszName, LPARAM  lParam  )

static

Definition at line 279 of file kbswitch.c.

{
    PLOAD_ICON pLoadIcon = (PLOAD_ICON)lParam;
    pLoadIcon->hIcon = (HICON)LoadImage(hModule, lpszName, IMAGE_ICON,
                                        pLoadIcon->cxIcon, pLoadIcon->cyIcon,
                                        LR_DEFAULTCOLOR);
    if (pLoadIcon->hIcon)
        return FALSE; /* Stop enumeration */
    return TRUE;
}

Referenced by FakeExtractIcon().

EnumWindowsProc()

static BOOL CALLBACK EnumWindowsProc ( HWND  hwnd, LPARAM  lParam  )

static

Definition at line 478 of file kbswitch.c.

{
    PostMessage(hwnd, WM_INPUTLANGCHANGEREQUEST, INPUTLANGCHANGE_SYSCHARSET, lParam);
    return TRUE;
}

Referenced by ActivateLayout().

FakeExtractIcon()

static HICON FakeExtractIcon ( LPCTSTR  szIconPath, INT  cxIcon, INT  cyIcon  )

static

Definition at line 294 of file kbswitch.c.

{
    LOAD_ICON LoadIcon = { cxIcon, cyIcon, NULL };
    HMODULE hImeDLL = LoadLibraryEx(szIconPath, NULL, LOAD_LIBRARY_AS_DATAFILE);
    if (hImeDLL)
    {
        EnumResourceNames(hImeDLL, RT_GROUP_ICON, EnumResNameProc, (LPARAM)&LoadIcon);
        FreeLibrary(hImeDLL);
    }
    return LoadIcon.hIcon;
}

Referenced by CreateTrayIcon().

GetHKLFromLayoutNum()

static HKL GetHKLFromLayoutNum ( INT  nLayoutNum )

static

Definition at line 172 of file kbswitch.c.

{
    if (0 <= (nLayoutNum - 1) && (nLayoutNum - 1) < g_cKLs)
    {
        return g_ahKLs[nLayoutNum - 1];
    }
    else
    {
        HWND hwndTarget = (g_hwndLastActive ? g_hwndLastActive : GetForegroundWindow());
        DWORD dwTID = GetWindowThreadProcessId(hwndTarget, NULL);
        return GetKeyboardLayout(dwTID);
    }
}

Referenced by GetKLIDFromLayoutNum().

GetImeFile()

static BOOL GetImeFile ( LPTSTR  szImeFile, SIZE_T  cchImeFile, LPCTSTR  szKLID  )

static

Definition at line 240 of file kbswitch.c.

{
    HKEY hKey;
    DWORD dwBufLen;
    TCHAR szBuf[MAX_PATH];
 
    szImeFile[0] = UNICODE_NULL;
 
    if (_tcslen(szKLID) != CCH_LAYOUT_ID)
        return FALSE; /* Invalid LCID */
 
    if (szKLID[0] != TEXT('E') && szKLID[0] != TEXT('e'))
        return FALSE; /* Not an IME HKL */
 
    StringCchPrintf(szBuf, ARRAYSIZE(szBuf),
                    _T("SYSTEM\\CurrentControlSet\\Control\\Keyboard Layouts\\%s"), szKLID);
 
    if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, szBuf, 0, KEY_QUERY_VALUE, &hKey) != ERROR_SUCCESS)
        return FALSE;
 
    dwBufLen = cchImeFile * sizeof(TCHAR);
    if (RegQueryValueEx(hKey, _T("IME File"), NULL, NULL,
                        (LPBYTE)szImeFile, &dwBufLen) != ERROR_SUCCESS)
    {
        szImeFile[0] = UNICODE_NULL;
    }
 
    RegCloseKey(hKey);
 
    return (szImeFile[0] != UNICODE_NULL);
}

Referenced by AddTrayIcon(), BuildLeftPopupMenu(), and UpdateTrayIcon().

GetKLIDFromHKL()

static VOID GetKLIDFromHKL ( HKL  hKL, LPTSTR  szKLID, SIZE_T  KLIDLength  )

static

Definition at line 114 of file kbswitch.c.

{
    szKLID[0] = 0;
 
    if (IS_IME_HKL(hKL))
    {
        StringCchPrintf(szKLID, KLIDLength, _T("%08lx"), (DWORD)(DWORD_PTR)hKL);
        return;
    }
 
    if (IS_SPECIAL_HKL(hKL))
    {
        INT i;
        for (i = 0; i < g_cSpecialIds; ++i)
        {
            if (g_SpecialIds[i].hKL == hKL)
            {
                StringCchCopy(szKLID, KLIDLength, g_SpecialIds[i].szKLID);
                return;
            }
        }
    }
    else
    {
        StringCchPrintf(szKLID, KLIDLength, _T("%08lx"), LOWORD(hKL));
    }
}

Referenced by BuildLeftPopupMenu(), GetKLIDFromLayoutNum(), and UpdateLanguageDisplay().

GetKLIDFromLayoutNum()

static VOID GetKLIDFromLayoutNum ( INT  nLayoutNum, LPTSTR  szKLID, SIZE_T  KLIDLength  )

static

Definition at line 187 of file kbswitch.c.

{
    GetKLIDFromHKL(GetHKLFromLayoutNum(nLayoutNum), szKLID, KLIDLength);
}

Referenced by ActivateLayout(), AddTrayIcon(), and GetLayoutName().

GetLayoutName()

static BOOL GetLayoutName ( INT  nLayoutNum, LPTSTR  szName, SIZE_T  NameLength  )

static

Definition at line 204 of file kbswitch.c.

{
    HKEY hKey;
    HRESULT hr;
    DWORD dwBufLen;
    TCHAR szBuf[MAX_PATH], szKLID[CCH_LAYOUT_ID + 1];
 
    GetKLIDFromLayoutNum(nLayoutNum, szKLID, ARRAYSIZE(szKLID));
 
    StringCchPrintf(szBuf, ARRAYSIZE(szBuf),
                    _T("SYSTEM\\CurrentControlSet\\Control\\Keyboard Layouts\\%s"), szKLID);
 
    if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, szBuf, 0, KEY_READ, &hKey) != ERROR_SUCCESS)
        return FALSE;
 
    /* Use "Layout Display Name" value as an entry name if possible */
    hr = SHLoadRegUIString(hKey, _T("Layout Display Name"), szName, NameLength);
    if (SUCCEEDED(hr))
    {
        RegCloseKey(hKey);
        return TRUE;
    }
 
    /* Otherwise, use "Layout Text" value as an entry name */
    dwBufLen = NameLength * sizeof(TCHAR);
    if (RegQueryValueEx(hKey, _T("Layout Text"), NULL, NULL,
                        (LPBYTE)szName, &dwBufLen) == ERROR_SUCCESS)
    {
        RegCloseKey(hKey);
        return TRUE;
    }
 
    RegCloseKey(hKey);
    return FALSE;
}

Referenced by AddTrayIcon(), and BuildLeftPopupMenu().

GetLayoutNum()

static UINT GetLayoutNum ( HKL  hKL )

static

Definition at line 596 of file kbswitch.c.

{
    INT iKL;
 
    for (iKL = 0; iKL < g_cKLs; ++iKL)
    {
        if (g_ahKLs[iKL] == hKL)
            return iKL + 1;
    }
 
    return 0;
}

Referenced by UpdateLanguageDisplay(), and WndProc().

GetNextLayout()

ULONG GetNextLayout

(

VOID

)

Definition at line 610 of file kbswitch.c.

{
    return (g_nCurrentLayoutNum % g_cKLs) + 1;
}

Referenced by WndProc().

GetSystemLibraryPath()

static BOOL GetSystemLibraryPath ( LPTSTR  szPath, SIZE_T  cchPath, LPCTSTR  FileName  )

static

Definition at line 193 of file kbswitch.c.

{
    if (!GetSystemDirectory(szPath, cchPath))
        return FALSE;
 
    StringCchCat(szPath, cchPath, TEXT("\\"));
    StringCchCat(szPath, cchPath, FileName);
    return TRUE;
}

Referenced by CreateTrayIcon(), and LayoutList_ReadLayout().

GetTargetWindow()

HWND GetTargetWindow

(

HWND

hwndFore

)

Definition at line 631 of file kbswitch.c.

{
    TCHAR szClass[64];
    HWND hwndIME;
    HWND hwndTarget = hwndFore;
    if (hwndTarget == NULL)
        hwndTarget = GetForegroundWindow();
 
    GetClassName(hwndTarget, szClass, ARRAYSIZE(szClass));
    if (_tcsicmp(szClass, szKbSwitcherName) == 0)
        hwndTarget = g_hwndLastActive;
 
    hwndIME = ImmGetDefaultIMEWnd(hwndTarget);
    return (hwndIME ? hwndIME : hwndTarget);
}

Referenced by UpdateLanguageDisplayCurrent().

LoadSpecialIds()

static VOID LoadSpecialIds ( VOID  )

static

Definition at line 61 of file kbswitch.c.

{
    TCHAR szKLID[KL_NAMELENGTH], szLayoutId[16];
    DWORD dwSize, dwIndex;
    HKEY hKey, hLayoutKey;
 
    g_cSpecialIds = 0;
 
    if (RegOpenKeyEx(HKEY_LOCAL_MACHINE,
                     TEXT("SYSTEM\\CurrentControlSet\\Control\\Keyboard Layouts"),
                     0, KEY_READ, &hKey) != ERROR_SUCCESS)
    {
        return;
    }
 
    for (dwIndex = 0; dwIndex < 1000; ++dwIndex)
    {
        dwSize = ARRAYSIZE(szKLID);
        if (RegEnumKeyEx(hKey, dwIndex, szKLID, &dwSize, NULL, NULL, NULL, NULL) != ERROR_SUCCESS)
            break;
 
        if (RegOpenKeyEx(hKey, szKLID, 0, KEY_READ, &hLayoutKey) != ERROR_SUCCESS)
            continue;
 
        dwSize = sizeof(szLayoutId);
        if (RegQueryValueEx(hLayoutKey, TEXT("Layout Id"), NULL, NULL,
                            (LPBYTE)szLayoutId, &dwSize) == ERROR_SUCCESS)
        {
            DWORD dwKLID = _tcstoul(szKLID, NULL, 16);
            WORD wLangId = LOWORD(dwKLID), wLayoutId = LOWORD(_tcstoul(szLayoutId, NULL, 16));
            HKL hKL = (HKL)(LONG_PTR)(SPECIAL_MASK | MAKELONG(wLangId, wLayoutId));
 
            /* Add a special ID */
            g_SpecialIds[g_cSpecialIds].dwLayoutId = wLayoutId;
            g_SpecialIds[g_cSpecialIds].hKL = hKL;
            StringCchCopy(g_SpecialIds[g_cSpecialIds].szKLID,
                          ARRAYSIZE(g_SpecialIds[g_cSpecialIds].szKLID), szKLID);
            ++g_cSpecialIds;
        }
 
        RegCloseKey(hLayoutKey);
 
        if (g_cSpecialIds >= ARRAYSIZE(g_SpecialIds))
        {
            OutputDebugStringA("g_SpecialIds is full!");
            break;
        }
    }
 
    RegCloseKey(hKey);
}

Referenced by WndProc().

RememberLastActive()

static BOOL RememberLastActive ( HWND  hwnd, HWND  hwndFore  )

static

Definition at line 657 of file kbswitch.c.

{
    TCHAR szClass[64];
 
    hwndFore = GetAncestor(hwndFore, GA_ROOT);
 
    if (!IsWindowVisible(hwndFore) || !GetClassName(hwndFore, szClass, ARRAYSIZE(szClass)))
        return FALSE;
 
    if (_tcsicmp(szClass, szKbSwitcherName) == 0 ||
        _tcsicmp(szClass, TEXT("Shell_TrayWnd")) == 0)
    {
        return FALSE; /* Special window */
    }
 
    /* FIXME: CONWND needs special handling */
    if (_tcsicmp(szClass, TEXT("ConsoleWindowClass")) == 0)
    {
        HKL hKL = GetKeyboardLayout(0);
        UpdateLanguageDisplay(hwnd, hKL);
    }
 
    g_hwndLastActive = hwndFore;
    return TRUE;
}

Referenced by WndProc().

SetHooks()

BOOL SetHooks

(

VOID

)

Definition at line 562 of file kbswitch.c.

{
    g_hHookDLL = LoadLibrary(_T("kbsdll.dll"));
    if (!g_hHookDLL)
    {
        return FALSE;
    }
 
    KbSwitchSetHooks    = (PKBSWITCHSETHOOKS) GetProcAddress(g_hHookDLL, "KbSwitchSetHooks");
    KbSwitchDeleteHooks = (PKBSWITCHDELETEHOOKS) GetProcAddress(g_hHookDLL, "KbSwitchDeleteHooks");
 
    if (KbSwitchSetHooks == NULL || KbSwitchDeleteHooks == NULL)
    {
        return FALSE;
    }
 
    return KbSwitchSetHooks();
}

Referenced by WndProc().

UpdateLanguageDisplay()

UINT UpdateLanguageDisplay	(	HWND	hwnd,
		HKL	hKL
	)

Definition at line 616 of file kbswitch.c.

{
    TCHAR szKLID[MAX_PATH], szLangName[MAX_PATH];
    LANGID LangID;
 
    GetKLIDFromHKL(hKL, szKLID, ARRAYSIZE(szKLID));
    LangID = (LANGID)_tcstoul(szKLID, NULL, 16);
    GetLocaleInfo(LangID, LOCALE_SLANGUAGE, szLangName, ARRAYSIZE(szLangName));
    UpdateTrayIcon(hwnd, szKLID, szLangName);
    g_nCurrentLayoutNum = GetLayoutNum(hKL);
 
    return 0;
}

Referenced by RememberLastActive(), UpdateLanguageDisplayCurrent(), and WndProc().

UpdateLanguageDisplayCurrent()

UINT UpdateLanguageDisplayCurrent	(	HWND	hwnd,
		HWND	hwndFore
	)

Definition at line 648 of file kbswitch.c.

{
    DWORD dwThreadID = GetWindowThreadProcessId(GetTargetWindow(hwndFore), NULL);
    HKL hKL = GetKeyboardLayout(dwThreadID);
    UpdateLanguageDisplay(hwnd, hKL);
 
    return 0;
}

Referenced by WndProc().

UpdateLayoutList()

static VOID UpdateLayoutList ( HKL hKL  OPTIONAL )

static

Definition at line 142 of file kbswitch.c.

{
    INT iKL;
 
    if (!hKL)
    {
        HWND hwndTarget = (g_hwndLastActive ? g_hwndLastActive : GetForegroundWindow());
        DWORD dwTID = GetWindowThreadProcessId(hwndTarget, NULL);
        hKL = GetKeyboardLayout(dwTID);
    }
 
    g_cKLs = GetKeyboardLayoutList(ARRAYSIZE(g_ahKLs), g_ahKLs);
 
    g_nCurrentLayoutNum = -1;
    for (iKL = 0; iKL < g_cKLs; ++iKL)
    {
        if (g_ahKLs[iKL] == hKL)
        {
            g_nCurrentLayoutNum = iKL + 1;
            break;
        }
    }
 
    if (g_nCurrentLayoutNum == -1 && g_cKLs < ARRAYSIZE(g_ahKLs))
    {
        g_nCurrentLayoutNum = g_cKLs;
        g_ahKLs[g_cKLs++] = hKL;
    }
}

Referenced by WndProc().

UpdateTrayIcon()

static VOID UpdateTrayIcon ( HWND  hwnd, LPTSTR  szKLID, LPTSTR  szName  )

static

Definition at line 459 of file kbswitch.c.

{
    NOTIFYICONDATA tnid = { sizeof(tnid), hwnd, 1, NIF_ICON | NIF_MESSAGE | NIF_TIP };
    TCHAR szImeFile[80];
 
    GetImeFile(szImeFile, ARRAYSIZE(szImeFile), szKLID);
 
    tnid.uCallbackMessage = WM_NOTIFYICONMSG;
    tnid.hIcon = CreateTrayIcon(szKLID, szImeFile);
    StringCchCopy(tnid.szTip, ARRAYSIZE(tnid.szTip), szName);
 
    Shell_NotifyIcon(NIM_MODIFY, &tnid);
 
    if (g_hTrayIcon)
        DestroyIcon(g_hTrayIcon);
    g_hTrayIcon = tnid.hIcon;
}

Referenced by ActivateLayout(), AddJobW(), StartDocPrinterW(), and UpdateLanguageDisplay().

WndProc()

LRESULT CALLBACK WndProc	(	HWND	hwnd,
		UINT	Message,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 684 of file kbswitch.c.

{
    static HMENU s_hMenu = NULL, s_hRightPopupMenu = NULL;
    static UINT s_uTaskbarRestart;
    POINT pt;
    HMENU hLeftPopupMenu;
 
    switch (Message)
    {
        case WM_CREATE:
        {
            if (!SetHooks())
            {
                MessageBox(NULL, TEXT("SetHooks failed."), NULL, MB_ICONERROR);
                return -1;
            }
 
            LoadSpecialIds();
 
            UpdateLayoutList(NULL);
            AddTrayIcon(hwnd);
 
            ActivateLayout(hwnd, g_nCurrentLayoutNum, NULL, TRUE);
            s_uTaskbarRestart = RegisterWindowMessage(TEXT("TaskbarCreated"));
            break;
        }
 
        case WM_LANG_CHANGED: /* Comes from kbsdll.dll and this module */
        {
            UpdateLayoutList((HKL)lParam);
            UpdateLanguageDisplay(hwnd, (HKL)lParam);
            break;
        }
 
        case WM_WINDOW_ACTIVATE: /* Comes from kbsdll.dll and this module */
        {
            HWND hwndFore = GetForegroundWindow();
            if (RememberLastActive(hwnd, hwndFore))
                return UpdateLanguageDisplayCurrent(hwnd, hwndFore);
            break;
        }
 
        case WM_NOTIFYICONMSG:
        {
            switch (lParam)
            {
                case WM_RBUTTONUP:
                case WM_LBUTTONUP:
                {
                    UpdateLayoutList(NULL);
 
                    GetCursorPos(&pt);
                    SetForegroundWindow(hwnd);
 
                    if (lParam == WM_LBUTTONUP)
                    {
                        /* Rebuild the left popup menu on every click to take care of keyboard layout changes */
                        hLeftPopupMenu = BuildLeftPopupMenu();
                        TrackPopupMenu(hLeftPopupMenu, 0, pt.x, pt.y, 0, hwnd, NULL);
                        DestroyMenu(hLeftPopupMenu);
                    }
                    else
                    {
                        if (!s_hRightPopupMenu)
                        {
                            s_hMenu = LoadMenu(hInst, MAKEINTRESOURCE(IDR_POPUP));
                            s_hRightPopupMenu = GetSubMenu(s_hMenu, 0);
                        }
                        TrackPopupMenu(s_hRightPopupMenu, 0, pt.x, pt.y, 0, hwnd, NULL);
                    }
 
                    PostMessage(hwnd, WM_NULL, 0, 0);
                    break;
                }
            }
            break;
        }
 
        case WM_COMMAND:
            switch (LOWORD(wParam))
            {
                case ID_EXIT:
                {
                    PostMessage(hwnd, WM_CLOSE, 0, 0);
                    break;
                }
 
                case ID_PREFERENCES:
                {
                    INT_PTR ret = (INT_PTR)ShellExecute(hwnd, NULL,
                                                        TEXT("control.exe"), TEXT("input.dll"),
                                                        NULL, SW_SHOWNORMAL);
                    if (ret <= 32)
                        MessageBox(hwnd, _T("Can't start input.dll"), NULL, MB_ICONERROR);
                    break;
                }
 
                case ID_NEXTLAYOUT:
                {
                    HWND hwndTarget = (HWND)lParam, hwndTargetSave = NULL;
                    DWORD dwThreadID;
                    HKL hKL;
                    UINT uNum;
                    TCHAR szClass[64];
                    BOOL bCONWND = FALSE;
 
                    if (hwndTarget == NULL)
                        hwndTarget = g_hwndLastActive;
 
                    /* FIXME: CONWND needs special handling */
                    if (hwndTarget &&
                        GetClassName(hwndTarget, szClass, ARRAYSIZE(szClass)) &&
                        _tcsicmp(szClass, TEXT("ConsoleWindowClass")) == 0)
                    {
                        bCONWND = TRUE;
                        hwndTargetSave = hwndTarget;
                        hwndTarget = NULL;
                    }
 
                    if (hwndTarget)
                    {
                        dwThreadID = GetWindowThreadProcessId(hwndTarget, NULL);
                        hKL = GetKeyboardLayout(dwThreadID);
                        uNum = GetLayoutNum(hKL);
                        if (uNum != 0)
                            g_nCurrentLayoutNum = uNum;
                    }
 
                    ActivateLayout(hwnd, GetNextLayout(), hwndTarget, TRUE);
 
                    /* FIXME: CONWND needs special handling */
                    if (bCONWND)
                        ActivateLayout(hwnd, g_nCurrentLayoutNum, hwndTargetSave, TRUE);
 
                    break;
                }
 
                default:
                {
                    if (1 <= LOWORD(wParam) && LOWORD(wParam) <= 1000)
                    {
                        if (!IsWindow(g_hwndLastActive))
                        {
                            g_hwndLastActive = NULL;
                        }
                        ActivateLayout(hwnd, LOWORD(wParam), g_hwndLastActive, FALSE);
                    }
                    break;
                }
            }
            break;
 
        case WM_SETTINGCHANGE:
        {
            if (wParam == SPI_SETNONCLIENTMETRICS)
            {
                PostMessage(hwnd, WM_WINDOW_ACTIVATE, wParam, lParam);
                break;
            }
        }
        break;
 
        case WM_DESTROY:
        {
            DeleteHooks();
            DestroyMenu(s_hMenu);
            DeleteTrayIcon(hwnd);
            PostQuitMessage(0);
            break;
        }
 
        default:
        {
            if (Message == s_uTaskbarRestart)
            {
                UpdateLayoutList(NULL);
                AddTrayIcon(hwnd);
                break;
            }
            else if (Message == ShellHookMessage)
            {
                if (wParam == HSHELL_LANGUAGE)
                    PostMessage(hwnd, WM_LANG_CHANGED, wParam, lParam);
                else if (wParam == HSHELL_WINDOWACTIVATED)
                    PostMessage(hwnd, WM_WINDOW_ACTIVATE, wParam, lParam);
 
                break;
            }
            return DefWindowProc(hwnd, Message, wParam, lParam);
        }
    }
 
    return 0;
}

Referenced by _tWinMain().

Variable Documentation

g_ahKLs

HKL g_ahKLs[64]

Definition at line 49 of file kbswitch.c.

Referenced by BuildLeftPopupMenu(), GetHKLFromLayoutNum(), GetLayoutNum(), and UpdateLayoutList().

g_cKLs

INT g_cKLs = 0

Definition at line 48 of file kbswitch.c.

Referenced by BuildLeftPopupMenu(), GetHKLFromLayoutNum(), GetLayoutNum(), GetNextLayout(), and UpdateLayoutList().

g_cSpecialIds

INT g_cSpecialIds = 0

Definition at line 59 of file kbswitch.c.

Referenced by GetKLIDFromHKL(), and LoadSpecialIds().

g_hHookDLL

HMODULE g_hHookDLL = NULL

Definition at line 44 of file kbswitch.c.

Referenced by DeleteHooks(), and SetHooks().

g_hTrayIcon

HICON g_hTrayIcon = NULL

Definition at line 46 of file kbswitch.c.

Referenced by AddTrayIcon(), DeleteTrayIcon(), and UpdateTrayIcon().

g_hwndLastActive

HWND g_hwndLastActive = NULL

Definition at line 47 of file kbswitch.c.

Referenced by GetHKLFromLayoutNum(), GetTargetWindow(), RememberLastActive(), UpdateLayoutList(), and WndProc().

g_nCurrentLayoutNum

INT g_nCurrentLayoutNum = 1

Definition at line 45 of file kbswitch.c.

Referenced by ActivateLayout(), AddTrayIcon(), BuildLeftPopupMenu(), GetNextLayout(), UpdateLanguageDisplay(), UpdateLayoutList(), and WndProc().

g_SpecialIds

SPECIAL_ID g_SpecialIds[80]

Definition at line 58 of file kbswitch.c.

Referenced by GetKLIDFromHKL(), and LoadSpecialIds().

hInst

HINSTANCE hInst

Definition at line 42 of file kbswitch.c.

Referenced by _tWinMain(), and WndProc().

hProcessHeap

HANDLE hProcessHeap

Definition at line 43 of file kbswitch.c.

Referenced by _StartDocPrinterSpooled(), _tWinMain(), AddPrinterA(), AddPrinterDriverExW(), AddPrinterW(), AddToolbarButton(), CTaskSwitchWnd::AddToTaskGroup(), AllocSplStr(), CTaskSwitchWnd::AllocTaskItem(), ClosePrinter(), CreateFontWindow(), CreateMainWindow(), CreateOpenInfo(), DeviceCapabilitiesA(), DllAllocSplMem(), DllFreeSplMem(), DllFreeSplStr(), DocumentPropertiesA(), DocumentPropertySheets(), DoFileOpen(), DoFileSave(), DoOpenFile(), DoSaveFile(), EditCurrentGlyph(), EditGlyphCommand(), EnumEventsThread(), EnumPrintersA(), FontWndProc(), GdiProcessSetup(), get_devmodeW(), GetDefaultPrinterA(), GetDefaultPrinterW(), GetMonitorUIFullName(), GetPrinterA(), GetPrinterDataExA(), GetPrinterDriverA(), GetPrintProcessorDirectoryA(), GetVersionInfoString(), InitFont(), IntFixUpDevModeNames(), LocalizedError(), MainWndProc(), OpenPrinterA(), OpenPrinterW(), PrinterProperties(), ProcessRunKeys(), QueryRemoteFonts(), QuerySpoolMode(), CTaskSwitchWnd::RemoveTaskFromTaskGroup(), ResetPrinterA(), RosConvertUnicodeDevModeToAnsiDevmode(), SetDefaultPrinterA(), SetDefaultPrinterW(), SetPrinterA(), SetPrinterDataExA(), SetSelectedCharacter(), StartDocPrinterA(), StartDocPrinterW(), UnicodeToAnsiInPlace(), UnicodeToAnsiZZInPlace(), and VarListLoadAndFormatString().

KbSwitchDeleteHooks

PKBSWITCHDELETEHOOKS KbSwitchDeleteHooks = NULL

Definition at line 39 of file kbswitch.c.

Referenced by DeleteHooks(), and SetHooks().

KbSwitchSetHooks

PKBSWITCHSETHOOKS KbSwitchSetHooks = NULL

Definition at line 38 of file kbswitch.c.

Referenced by SetHooks().

ShellHookMessage

UINT ShellHookMessage = 0

Definition at line 40 of file kbswitch.c.

Referenced by _tWinMain(), and WndProc().