kbswitch.c File Reference

#include "kbswitch.h"

Include dependency graph for kbswitch.c:

Go to the source code of this file.

Macros
#define	WM_NOTIFYICONMSG   (WM_USER + 248)

Functions
static BOOL	GetLayoutID (LPCTSTR szLayoutNum, LPTSTR szLCID, SIZE_T LCIDLength)
static BOOL	GetLayoutName (LPCTSTR szLayoutNum, LPTSTR szName, SIZE_T NameLength)
static HICON	CreateTrayIcon (LPTSTR szLCID)
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)
static HMENU	BuildLeftPopupMenu (VOID)
static ULONG	GetMaxLayoutNum (VOID)
BOOL	SetHooks (VOID)
VOID	DeleteHooks (VOID)
ULONG	GetNextLayout (VOID)
LRESULT	UpdateLanguageDisplay (HWND hwnd, HKL hKl)
LRESULT	UpdateLanguageDisplayCurrent (HWND hwnd, WPARAM wParam)
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

Macro Definition Documentation

WM_NOTIFYICONMSG

#define WM_NOTIFYICONMSG   (WM_USER + 248)

Definition at line 12 of file kbswitch.c.

Function Documentation

_tWinMain()

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

Definition at line 613 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  )

static

Definition at line 297 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);
    hKl = LoadKeyboardLayout(szLCID, KLF_ACTIVATE);

    /* Post WM_INPUTLANGCHANGEREQUEST to every top-level window */
    EnumWindows(EnumWindowsProc, (LPARAM) hKl);

    ulCurrentLayoutNum = uLayoutNum;
}

Referenced by WndProc().

AddTrayIcon()

static VOID AddTrayIcon ( HWND  hwnd )

static

Definition at line 235 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];

    GetLayoutID(_T("1"), szLCID, ARRAYSIZE(szLCID));
    GetLayoutName(_T("1"), szName, ARRAYSIZE(szName));

    tnid.uCallbackMessage = WM_NOTIFYICONMSG;
    tnid.hIcon = CreateTrayIcon(szLCID);
    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().

BuildLeftPopupMenu()

static HMENU BuildLeftPopupMenu ( VOID  )

static

Definition at line 323 of file kbswitch.c.

{
    HMENU hMenu = CreatePopupMenu();
    HKEY hKey;
    DWORD dwIndex, dwSize;
    TCHAR szLayoutNum[CCH_ULONG_DEC + 1], szName[MAX_PATH];

    /* 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;
            }

            if (!GetLayoutName(szLayoutNum, szName, ARRAYSIZE(szName)))
                break;

            AppendMenu(hMenu, MF_STRING, _ttoi(szLayoutNum), szName);
        }

        CheckMenuItem(hMenu, ulCurrentLayoutNum, MF_CHECKED);

        RegCloseKey(hKey);
    }

    return hMenu;
}

Referenced by WndProc().

CreateTrayIcon()

static HICON CreateTrayIcon ( LPTSTR  szLCID )

static

Definition at line 145 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);

    /* 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(), and UpdateTrayIcon().

DeleteHooks()

VOID DeleteHooks

(

VOID

)

Definition at line 412 of file kbswitch.c.

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

Referenced by WndProc().

DeleteTrayIcon()

static VOID DeleteTrayIcon ( HWND  hwnd )

static

Definition at line 255 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().

EnumWindowsProc()

static BOOL CALLBACK EnumWindowsProc ( HWND  hwnd, LPARAM  lParam  )

static

Definition at line 290 of file kbswitch.c.

{
    PostMessage(hwnd, WM_INPUTLANGCHANGEREQUEST, 0, lParam);
    return TRUE;
}

Referenced by ActivateLayout().

GetLayoutID()

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

static

Definition at line 25 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(), GetLayoutName(), GetMaxLayoutNum(), and GetNextLayout().

GetLayoutIDByHkl()

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

static

Definition at line 284 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 69 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 TRUE;
    }

    RegCloseKey(hKey);
    return FALSE;
}

Referenced by AddTrayIcon(), and BuildLeftPopupMenu().

GetMaxLayoutNum()

static ULONG GetMaxLayoutNum ( VOID  )

static

Definition at line 358 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 419 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().

SetHooks()

BOOL SetHooks

(

VOID

)

Definition at line 392 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()

LRESULT UpdateLanguageDisplay	(	HWND	hwnd,
		HKL	hKl
	)

Definition at line 440 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 UpdateLanguageDisplayCurrent(), and WndProc().

UpdateLanguageDisplayCurrent()

LRESULT UpdateLanguageDisplayCurrent	(	HWND	hwnd,
		WPARAM	wParam
	)

Definition at line 454 of file kbswitch.c.

{
    DWORD dwThreadID = GetWindowThreadProcessId((HWND)wParam, 0);
    HKL hKL = GetKeyboardLayout(dwThreadID);
    return UpdateLanguageDisplay(hwnd, hKL);
}

Referenced by WndProc().

UpdateTrayIcon()

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

static

Definition at line 268 of file kbswitch.c.

{
    NOTIFYICONDATA tnid = { sizeof(tnid), hwnd, 1, NIF_ICON | NIF_MESSAGE | NIF_TIP };

    tnid.uCallbackMessage = WM_NOTIFYICONMSG;
    tnid.hIcon = CreateTrayIcon(szLCID);
    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 462 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())
                return -1;

            AddTrayIcon(hwnd);

            ActivateLayout(hwnd, ulCurrentLayoutNum);
            s_uTaskbarRestart = RegisterWindowMessage(TEXT("TaskbarCreated"));
            break;
        }

        case WM_LANG_CHANGED:
        {
            return UpdateLanguageDisplay(hwnd, (HKL)lParam);
        }

        case WM_LOAD_LAYOUT:
        {
            ULONG uNextNum = GetNextLayout();
            if (ulCurrentLayoutNum != uNextNum)
                ActivateLayout(hwnd, uNextNum);
            break;
        }

        case WM_WINDOW_ACTIVATE:
        {
            return UpdateLanguageDisplayCurrent(hwnd, wParam);
        }

        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:
                {
                    SendMessage(hwnd, WM_CLOSE, 0, 0);
                    break;
                }

                case ID_PREFERENCES:
                {
                    SHELLEXECUTEINFO shInputDll = { sizeof(shInputDll) };
                    shInputDll.hwnd = hwnd;
                    shInputDll.lpVerb = _T("open");
                    shInputDll.lpFile = _T("rundll32.exe");
                    shInputDll.lpParameters = _T("shell32.dll,Control_RunDLL input.dll");
                    if (!ShellExecuteEx(&shInputDll))
                        MessageBox(hwnd, _T("Can't start input.dll"), NULL, MB_OK | MB_ICONERROR);

                    break;
                }

                case ID_NEXTLAYOUT:
                {
                    ActivateLayout(hwnd, GetNextLayout());
                    break;
                }

                default:
                {
                    ActivateLayout(hwnd, LOWORD(wParam));
                    break;
                }
            }
            break;

        case WM_SETTINGCHANGE:
        {
            if (wParam == SPI_SETDEFAULTINPUTLANG)
            {
                //FIXME: Should detect default language changes by CPL applet or by other tools and update UI
            }
            if (wParam == SPI_SETNONCLIENTMETRICS)
            {
                return UpdateLanguageDisplayCurrent(hwnd, wParam);
            }
        }
        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 && wParam == HSHELL_LANGUAGE)
            {
                PostMessage(hwnd, WM_LANG_CHANGED, 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 20 of file kbswitch.c.

Referenced by DeleteHooks(), and SetHooks().

g_hTrayIcon

HICON g_hTrayIcon = NULL

Definition at line 22 of file kbswitch.c.

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

hInst

HINSTANCE hInst

Definition at line 18 of file kbswitch.c.

Referenced by _tWinMain(), and WndProc().

hProcessHeap

HANDLE hProcessHeap

Definition at line 19 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 15 of file kbswitch.c.

Referenced by DeleteHooks(), and SetHooks().

KbSwitchSetHooks

PKBSWITCHSETHOOKS KbSwitchSetHooks = NULL

Definition at line 14 of file kbswitch.c.

Referenced by SetHooks().

ShellHookMessage

UINT ShellHookMessage = 0

Definition at line 16 of file kbswitch.c.

Referenced by _tWinMain(), and WndProc().

ulCurrentLayoutNum

ULONG ulCurrentLayoutNum = 1

Definition at line 21 of file kbswitch.c.

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