kbswitch.c File Reference

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

Include dependency graph for kbswitch.c:

Go to the source code of this file.

Classes
struct	tagLOAD_ICON

Macros
#define	WM_NOTIFYICONMSG   (WM_USER + 248)

Typedefs
typedef struct tagLOAD_ICON	LOAD_ICON
typedef struct tagLOAD_ICON *	PLOAD_ICON

Functions
static BOOL	GetLayoutID (LPCTSTR szLayoutNum, LPTSTR szLCID, SIZE_T LCIDLength)
static BOOL	GetSystemLibraryPath (LPTSTR szPath, SIZE_T cchPath, LPCTSTR FileName)
static BOOL	GetLayoutName (LPCTSTR szLayoutNum, LPTSTR szName, SIZE_T NameLength)
static BOOL	GetImeFile (LPTSTR szImeFile, SIZE_T cchImeFile, LPCTSTR szLCID)
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 szLCID, LPCTSTR szImeFile OPTIONAL)
static VOID	AddTrayIcon (HWND hwnd)
static VOID	DeleteTrayIcon (HWND hwnd)
static VOID	UpdateTrayIcon (HWND hwnd, LPTSTR szLCID, LPTSTR szName)
static VOID	GetLayoutIDByHkl (HKL hKl, LPTSTR szLayoutID, SIZE_T LayoutIDLength)
static BOOL CALLBACK	EnumWindowsProc (HWND hwnd, LPARAM lParam)
static VOID	ActivateLayout (HWND hwnd, ULONG uLayoutNum, HWND hwndTarget OPTIONAL, BOOL bNoActivate)
static HMENU	BuildLeftPopupMenu (VOID)
static ULONG	GetMaxLayoutNum (VOID)
BOOL	SetHooks (VOID)
VOID	DeleteHooks (VOID)
ULONG	GetNextLayout (VOID)
UINT	UpdateLanguageDisplay (HWND hwnd, HKL hKl)
HWND	GetTargetWindow (HWND hwndFore)
UINT	UpdateLanguageDisplayCurrent (HWND hwnd, HWND hwndFore)
static UINT	GetCurLayoutNum (HKL hKL)
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
ULONG	ulCurrentLayoutNum = 1
HICON	g_hTrayIcon = NULL
HWND	g_hwndLastActive = NULL

Macro Definition Documentation

WM_NOTIFYICONMSG

#define WM_NOTIFYICONMSG   (WM_USER + 248)

Definition at line 27 of file kbswitch.c.

Typedef Documentation

LOAD_ICON

typedef struct tagLOAD_ICON LOAD_ICON

PLOAD_ICON

typedef struct tagLOAD_ICON * PLOAD_ICON

Function Documentation

_tWinMain()

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

Definition at line 884 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 425 of file kbswitch.c.

{
    HKL hKl;
    TCHAR szLayoutNum[CCH_ULONG_DEC + 1], szLCID[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;
 
    _ultot(uLayoutNum, szLayoutNum, 10);
    GetLayoutID(szLayoutNum, szLCID, ARRAYSIZE(szLCID));
    LangID = (LANGID)_tcstoul(szLCID, NULL, 16);
 
    /* Switch to the new keyboard layout */
    GetLocaleInfo(LangID, LOCALE_SLANGUAGE, szLangName, ARRAYSIZE(szLangName));
    UpdateTrayIcon(hwnd, szLCID, szLangName);
 
    if (hwndTarget && !bNoActivate)
        SetForegroundWindow(hwndTarget);
 
    hKl = LoadKeyboardLayout(szLCID, 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);
    }
 
    ulCurrentLayoutNum = uLayoutNum;
}

Referenced by WndProc().

AddTrayIcon()

static VOID AddTrayIcon ( HWND  hwnd )

static

Definition at line 358 of file kbswitch.c.

{
    NOTIFYICONDATA tnid = { sizeof(tnid), hwnd, 1, NIF_ICON | NIF_MESSAGE | NIF_TIP };
    TCHAR szLCID[CCH_LAYOUT_ID + 1], szName[MAX_PATH];
    TCHAR szImeFile[80];
 
    GetLayoutID(_T("1"), szLCID, ARRAYSIZE(szLCID));
    GetLayoutName(_T("1"), szName, ARRAYSIZE(szName));
    GetImeFile(szImeFile, ARRAYSIZE(szImeFile), szLCID);
 
    tnid.uCallbackMessage = WM_NOTIFYICONMSG;
    tnid.hIcon = CreateTrayIcon(szLCID, 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 239 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 465 of file kbswitch.c.

{
    HMENU hMenu = CreatePopupMenu();
    HKEY hKey;
    DWORD dwIndex, dwSize;
    TCHAR szLayoutNum[CCH_ULONG_DEC + 1], szName[MAX_PATH];
    TCHAR szLCID[CCH_LAYOUT_ID + 1], szImeFile[80];
    HICON hIcon;
    MENUITEMINFO mii = { sizeof(mii) };
 
    /* Add the keyboard layouts to the popup menu */
    if (RegOpenKeyEx(HKEY_CURRENT_USER, _T("Keyboard Layout\\Preload"), 0,
                     KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
    {
        for (dwIndex = 0; ; dwIndex++)
        {
            dwSize = sizeof(szLayoutNum);
            if (RegEnumValue(hKey, dwIndex, szLayoutNum, &dwSize, NULL, NULL,
                             NULL, NULL) != ERROR_SUCCESS)
            {
                break;
            }
 
            GetLayoutID(szLayoutNum, szLCID, ARRAYSIZE(szLCID));
            GetImeFile(szImeFile, ARRAYSIZE(szImeFile), szLCID);
 
            if (!GetLayoutName(szLayoutNum, szName, ARRAYSIZE(szName)))
                continue;
 
            mii.fMask       = MIIM_ID | MIIM_STRING;
            mii.wID         = _ttoi(szLayoutNum);
            mii.dwTypeData  = szName;
 
            hIcon = CreateTrayIcon(szLCID, szImeFile);
            if (hIcon)
            {
                mii.hbmpItem = BitmapFromIcon(hIcon);
                if (mii.hbmpItem)
                    mii.fMask |= MIIM_BITMAP;
            }
 
            InsertMenuItem(hMenu, -1, TRUE, &mii);
            DestroyIcon(hIcon);
        }
 
        CheckMenuItem(hMenu, ulCurrentLayoutNum, MF_CHECKED);
 
        RegCloseKey(hKey);
    }
 
    return hMenu;
}

Referenced by WndProc().

CreateTrayIcon()

static HICON CreateTrayIcon ( LPTSTR  szLCID, LPCTSTR szImeFile  OPTIONAL  )

static

Definition at line 261 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(szLCID, 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 573 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 380 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 212 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 418 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 227 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().

GetCurLayoutNum()

static UINT GetCurLayoutNum ( HKL  hKL )

static

Definition at line 649 of file kbswitch.c.

{
    UINT i, nCount;
    HKL ahKL[256];
 
    nCount = GetKeyboardLayoutList(ARRAYSIZE(ahKL), ahKL);
    for (i = 0; i < nCount; ++i)
    {
        if (ahKL[i] == hKL)
            return i + 1;
    }
 
    return 0;
}

Referenced by WndProc().

GetImeFile()

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

static

Definition at line 171 of file kbswitch.c.

{
    HKEY hKey;
    DWORD dwBufLen;
    TCHAR szBuf[MAX_PATH];
 
    szImeFile[0] = UNICODE_NULL;
 
    if (_tcslen(szLCID) != CCH_LAYOUT_ID)
        return FALSE; /* Invalid LCID */
 
    if (szLCID[0] != TEXT('E') && szLCID[0] != TEXT('e'))
        return FALSE; /* Not an IME HKL */
 
    StringCchPrintf(szBuf, ARRAYSIZE(szBuf),
                    _T("SYSTEM\\CurrentControlSet\\Control\\Keyboard Layouts\\%s"), szLCID);
 
    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().

GetLayoutID()

static BOOL GetLayoutID ( LPCTSTR  szLayoutNum, LPTSTR  szLCID, SIZE_T  LCIDLength  )

static

Definition at line 41 of file kbswitch.c.

{
    DWORD dwBufLen, dwRes;
    HKEY hKey;
    TCHAR szTempLCID[CCH_LAYOUT_ID + 1];
 
    /* Get the Layout ID */
    if (RegOpenKeyEx(HKEY_CURRENT_USER, _T("Keyboard Layout\\Preload"), 0, KEY_QUERY_VALUE,
                     &hKey) == ERROR_SUCCESS)
    {
        dwBufLen = sizeof(szTempLCID);
        dwRes = RegQueryValueEx(hKey, szLayoutNum, NULL, NULL, (LPBYTE)szTempLCID, &dwBufLen);
        if (dwRes != ERROR_SUCCESS)
        {
            RegCloseKey(hKey);
            return FALSE;
        }
 
        RegCloseKey(hKey);
    }
 
    /* Look for a substitute of this layout */
    if (RegOpenKeyEx(HKEY_CURRENT_USER, _T("Keyboard Layout\\Substitutes"), 0,
                     KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
    {
        dwBufLen = sizeof(szTempLCID);
        if (RegQueryValueEx(hKey, szTempLCID, NULL, NULL, (LPBYTE)szLCID, &dwBufLen) != ERROR_SUCCESS)
        {
            /* No substitute found, then use the old LCID */
            StringCchCopy(szLCID, LCIDLength, szTempLCID);
        }
 
        RegCloseKey(hKey);
    }
    else
    {
        /* Substitutes key couldn't be opened, so use the old LCID */
        StringCchCopy(szLCID, LCIDLength, szTempLCID);
    }
 
    return TRUE;
}

Referenced by ActivateLayout(), AddTrayIcon(), BuildLeftPopupMenu(), GetLayoutName(), GetMaxLayoutNum(), and GetNextLayout().

GetLayoutIDByHkl()

static VOID GetLayoutIDByHkl ( HKL  hKl, LPTSTR  szLayoutID, SIZE_T  LayoutIDLength  )

static

Definition at line 412 of file kbswitch.c.

{
    StringCchPrintf(szLayoutID, LayoutIDLength, _T("%08lx"), (DWORD)(DWORD_PTR)(hKl));
}

Referenced by UpdateLanguageDisplay().

GetLayoutName()

static BOOL GetLayoutName ( LPCTSTR  szLayoutNum, LPTSTR  szName, SIZE_T  NameLength  )

static

Definition at line 96 of file kbswitch.c.

{
    HKEY hKey;
    DWORD dwBufLen;
    TCHAR szBuf[MAX_PATH], szDispName[MAX_PATH], szIndex[MAX_PATH], szPath[MAX_PATH];
    TCHAR szLCID[CCH_LAYOUT_ID + 1];
    HANDLE hLib;
    UINT i, j, k;
 
    if (!GetLayoutID(szLayoutNum, szLCID, ARRAYSIZE(szLCID)))
        return FALSE;
 
    StringCchPrintf(szBuf, ARRAYSIZE(szBuf),
                    _T("SYSTEM\\CurrentControlSet\\Control\\Keyboard Layouts\\%s"), szLCID);
 
    if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, szBuf, 0, KEY_QUERY_VALUE, &hKey) != ERROR_SUCCESS)
    {
        return FALSE;
    }
 
    /* Use "Layout Display Name" value as an entry name if possible */
    dwBufLen = sizeof(szDispName);
    if (RegQueryValueEx(hKey, _T("Layout Display Name"), NULL, NULL,
                        (LPBYTE)szDispName, &dwBufLen) == ERROR_SUCCESS)
    {
        /* FIXME: Use shlwapi!SHLoadRegUIStringW instead if it was implemented */
        if (szDispName[0] == '@')
        {
            size_t len = _tcslen(szDispName);
 
            for (i = 0; i < len; i++)
            {
                if ((szDispName[i] == ',') && (szDispName[i + 1] == '-'))
                {
                    for (j = i + 2, k = 0; j < _tcslen(szDispName)+1; j++, k++)
                    {
                        szIndex[k] = szDispName[j];
                    }
                    szDispName[i - 1] = '\0';
                    break;
                }
                else szDispName[i] = szDispName[i + 1];
            }
 
            if (ExpandEnvironmentStrings(szDispName, szPath, ARRAYSIZE(szPath)))
            {
                hLib = LoadLibrary(szPath);
                if (hLib)
                {
                    if (LoadString(hLib, _ttoi(szIndex), szPath, ARRAYSIZE(szPath)))
                    {
                        StringCchCopy(szName, NameLength, szPath);
                        RegCloseKey(hKey);
                        FreeLibrary(hLib);
                        return TRUE;
                    }
                    FreeLibrary(hLib);
                }
            }
        }
    }
 
    /* 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 FALSE;
    }
 
    RegCloseKey(hKey);
    return TRUE;
}

Referenced by AddTrayIcon(), and BuildLeftPopupMenu().

GetMaxLayoutNum()

static ULONG GetMaxLayoutNum ( VOID  )

static

Definition at line 519 of file kbswitch.c.

{
    HKEY hKey;
    ULONG dwIndex, dwSize, uLayoutNum, uMaxLayoutNum = 0;
    TCHAR szLayoutNum[CCH_ULONG_DEC + 1], szLayoutID[CCH_LAYOUT_ID + 1];
 
    /* Get the maximum layout number in the Preload key */
    if (RegOpenKeyEx(HKEY_CURRENT_USER, _T("Keyboard Layout\\Preload"), 0,
                     KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
    {
        for (dwIndex = 0; ; dwIndex++)
        {
            dwSize = sizeof(szLayoutNum);
            if (RegEnumValue(hKey, dwIndex, szLayoutNum, &dwSize, NULL, NULL,
                             NULL, NULL) != ERROR_SUCCESS)
            {
                break;
            }
 
            if (GetLayoutID(szLayoutNum, szLayoutID, ARRAYSIZE(szLayoutID)))
            {
                uLayoutNum = _ttoi(szLayoutNum);
                if (uMaxLayoutNum < uLayoutNum)
                    uMaxLayoutNum = uLayoutNum;
            }
        }
 
        RegCloseKey(hKey);
    }
 
    return uMaxLayoutNum;
}

Referenced by GetNextLayout().

GetNextLayout()

ULONG GetNextLayout

(

VOID

)

Definition at line 588 of file kbswitch.c.

{
    TCHAR szLayoutNum[3 + 1], szLayoutID[CCH_LAYOUT_ID + 1];
    ULONG uLayoutNum, uMaxNum = GetMaxLayoutNum();
 
    for (uLayoutNum = ulCurrentLayoutNum + 1; ; ++uLayoutNum)
    {
        if (uLayoutNum > uMaxNum)
            uLayoutNum = 1;
        if (uLayoutNum == ulCurrentLayoutNum)
            break;
 
        _ultot(uLayoutNum, szLayoutNum, 10);
        if (GetLayoutID(szLayoutNum, szLayoutID, ARRAYSIZE(szLayoutID)))
            return uLayoutNum;
    }
 
    return ulCurrentLayoutNum;
}

Referenced by WndProc().

GetSystemLibraryPath()

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

static

Definition at line 85 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 623 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().

RememberLastActive()

static BOOL RememberLastActive ( HWND  hwnd, HWND  hwndFore  )

static

Definition at line 664 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 is multithreaded but KLF_SETFORPROCESS and
              DefWindowProc.WM_INPUTLANGCHANGEREQUEST won't work yet */
    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 553 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 609 of file kbswitch.c.

{
    TCHAR szLCID[MAX_PATH], szLangName[MAX_PATH];
    LANGID LangID;
 
    GetLayoutIDByHkl(hKl, szLCID, ARRAYSIZE(szLCID));
    LangID = (LANGID)_tcstoul(szLCID, NULL, 16);
    GetLocaleInfo(LangID, LOCALE_SLANGUAGE, szLangName, ARRAYSIZE(szLangName));
    UpdateTrayIcon(hwnd, szLCID, szLangName);
 
    return 0;
}

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

UpdateLanguageDisplayCurrent()

UINT UpdateLanguageDisplayCurrent	(	HWND	hwnd,
		HWND	hwndFore
	)

Definition at line 640 of file kbswitch.c.

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

Referenced by WndProc().

UpdateTrayIcon()

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

static

Definition at line 393 of file kbswitch.c.

{
    NOTIFYICONDATA tnid = { sizeof(tnid), hwnd, 1, NIF_ICON | NIF_MESSAGE | NIF_TIP };
    TCHAR szImeFile[80];
 
    GetImeFile(szImeFile, ARRAYSIZE(szImeFile), szLCID);
 
    tnid.uCallbackMessage = WM_NOTIFYICONMSG;
    tnid.hIcon = CreateTrayIcon(szLCID, 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 692 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;
            }
 
            AddTrayIcon(hwnd);
 
            ActivateLayout(hwnd, ulCurrentLayoutNum, NULL, TRUE);
            s_uTaskbarRestart = RegisterWindowMessage(TEXT("TaskbarCreated"));
            break;
        }
 
        case WM_LANG_CHANGED: /* Comes from kbsdll.dll and this module */
        {
            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:
                {
                    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 is multithreaded but KLF_SETFORPROCESS and
                              DefWindowProc.WM_INPUTLANGCHANGEREQUEST won't work yet */
                    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 = GetCurLayoutNum(hKL);
                        if (uNum != 0)
                            ulCurrentLayoutNum = uNum;
                    }
 
                    ActivateLayout(hwnd, GetNextLayout(), hwndTarget, TRUE);
 
                    /* FIXME: CONWND is multithreaded but KLF_SETFORPROCESS and
                              DefWindowProc.WM_INPUTLANGCHANGEREQUEST won't work yet */
                    if (bCONWND)
                    {
                        ActivateLayout(hwnd, ulCurrentLayoutNum, 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)
            {
                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_hHookDLL

HMODULE g_hHookDLL = NULL

Definition at line 35 of file kbswitch.c.

Referenced by DeleteHooks(), and SetHooks().

g_hTrayIcon

HICON g_hTrayIcon = NULL

Definition at line 37 of file kbswitch.c.

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

g_hwndLastActive

HWND g_hwndLastActive = NULL

Definition at line 38 of file kbswitch.c.

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

hInst

HINSTANCE hInst

Definition at line 33 of file kbswitch.c.

Referenced by _tWinMain(), and WndProc().

hProcessHeap

HANDLE hProcessHeap

Definition at line 34 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 30 of file kbswitch.c.

Referenced by DeleteHooks(), and SetHooks().

KbSwitchSetHooks

PKBSWITCHSETHOOKS KbSwitchSetHooks = NULL

Definition at line 29 of file kbswitch.c.

Referenced by SetHooks().

ShellHookMessage

UINT ShellHookMessage = 0

Definition at line 31 of file kbswitch.c.

Referenced by _tWinMain(), and WndProc().

ulCurrentLayoutNum

ULONG ulCurrentLayoutNum = 1

Definition at line 36 of file kbswitch.c.

Referenced by ActivateLayout(), BuildLeftPopupMenu(), GetNextLayout(), and WndProc().