main.c File Reference

#include "precomp.h"

Include dependency graph for main.c:

Go to the source code of this file.

Functions
int	OSK_SetImage (int IdDlgItem, int IdResource)
void	OSK_SetText (int IdDlgItem, int IdResource)
INT_PTR CALLBACK	OSK_WarningProc (HWND hDlg, UINT Msg, WPARAM wParam, LPARAM lParam)
DWORD WINAPI	OSK_WarningDlgThread (LPVOID lpParameter)
VOID	OSK_About (VOID)
VOID	OSK_DestroyKeys (VOID)
LRESULT	OSK_SetKeys (int reason)
LRESULT	OSK_Create (HWND hwnd)
int	OSK_Close (void)
VOID	OSK_RefreshLEDKeys (VOID)
int	OSK_Timer (void)
VOID	OSK_ChooseFont (VOID)
BOOL	OSK_Command (WPARAM wCommand, HWND hWndControl)
BOOL	OSK_ReleaseKey (WORD ScanCode)
LRESULT	OSK_Paint (HWND hwnd)
LRESULT APIENTRY	OSK_WndProc (HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
int WINAPI	wWinMain (HINSTANCE hInstance, HINSTANCE prev, LPWSTR cmdline, int show)

Variables
OSK_GLOBALS	Globals
OSK_KEYLEDINDICATOR	LedKey []

Function Documentation

OSK_About()

VOID OSK_About

(

VOID

)

Definition at line 138 of file main.c.

{
    WCHAR szAuthors[MAX_PATH];
    HICON OSKIcon;

    /* Load the icon */
    OSKIcon = LoadImageW(Globals.hInstance, MAKEINTRESOURCEW(IDI_OSK), IMAGE_ICON, 0, 0, LR_DEFAULTSIZE);

    /* Load the strings into the "About" dialog */
    LoadStringW(Globals.hInstance, IDS_AUTHORS, szAuthors, _countof(szAuthors));

    /* Finally, execute the "About" dialog by using the Shell routine */
    ShellAboutW(Globals.hMainWnd, Globals.szTitle, szAuthors, OSKIcon);

    /* Once done, destroy the icon */
    DestroyIcon(OSKIcon);
}

Referenced by OSK_WndProc().

OSK_ChooseFont()

VOID OSK_ChooseFont

(

VOID

)

Definition at line 577 of file main.c.

{
    LOGFONTW lf = {0};
    CHOOSEFONTW cf = {0};
    HFONT hFont, hOldFont;
    int i;

    StringCchCopyW(lf.lfFaceName, _countof(Globals.FontFaceName), Globals.FontFaceName);
    lf.lfHeight = Globals.FontHeight;

    cf.lStructSize = sizeof(cf);
    cf.hwndOwner = Globals.hMainWnd;
    cf.lpLogFont = &lf;
    cf.Flags = CF_INITTOLOGFONTSTRUCT | CF_NOSTYLESEL;

    if (!ChooseFontW(&cf))
        return;

    hFont = CreateFontIndirectW(&lf);

    if (!hFont)
        return;

    /* Set font information */
    StringCchCopyW(Globals.FontFaceName, _countof(Globals.FontFaceName), lf.lfFaceName);
    Globals.FontHeight = lf.lfHeight;

    hOldFont = Globals.hFont;
    Globals.hFont = hFont;

    for (i = 0; i < Globals.Keyboard->KeyCount; i++)
        SendMessageW(Globals.hKeys[i], WM_SETFONT, (WPARAM)Globals.hFont, TRUE);

    DeleteObject(hOldFont);
}

Referenced by OSK_WndProc().

OSK_Close()

int OSK_Close

(

void

)

Definition at line 490 of file main.c.

{
    KillTimer(Globals.hMainWnd, Globals.iTimer);

    /* Release Ctrl, Shift, Alt keys */
    OSK_ReleaseKey(SCAN_CODE_44); // Left shift
    OSK_ReleaseKey(SCAN_CODE_57); // Right shift
    OSK_ReleaseKey(SCAN_CODE_58); // Left ctrl
    OSK_ReleaseKey(SCAN_CODE_60); // Left alt
    OSK_ReleaseKey(SCAN_CODE_62); // Right alt
    OSK_ReleaseKey(SCAN_CODE_64); // Right ctrl

    /* Destroy child controls */
    OSK_DestroyKeys();

    /* delete GDI objects */
    if (Globals.hBrushGreenLed) DeleteObject(Globals.hBrushGreenLed);
    if (Globals.hFont) DeleteObject(Globals.hFont);

    /* Save the application's settings on registry */
    SaveSettings();

    return TRUE;
}

Referenced by OSK_WndProc().

OSK_Command()

BOOL OSK_Command	(	WPARAM	wCommand,
		HWND	hWndControl
	)

Definition at line 619 of file main.c.

{
    WORD ScanCode;
    INPUT Input;
    BOOL bExtendedKey;
    BOOL bKeyDown;
    BOOL bKeyUp;
    LONG WindowStyle;
    INT i;

    /* KeyDown and/or KeyUp ? */
    WindowStyle = GetWindowLongW(hWndControl, GWL_STYLE);
    if ((WindowStyle & BS_AUTOCHECKBOX) == BS_AUTOCHECKBOX)
    {
        /* 2-states key like Shift, Alt, Ctrl, ... */
        if (SendMessageW(hWndControl, BM_GETCHECK, 0, 0) == BST_CHECKED)
        {
            bKeyDown = TRUE;
            bKeyUp = FALSE;
        }
        else
        {
            bKeyDown = FALSE;
            bKeyUp = TRUE;
        }
    }
    else
    {
        /* Other key */
        bKeyDown = TRUE;
        bKeyUp = TRUE;
    }

    /* Get the key from dialog control key command */
    ScanCode = wCommand;

    /*
        The user could've pushed one of the key buttons of the dialog that
        can trigger particular function toggling (Caps Lock, Num Lock or Scroll Lock). Update
        (invalidate) the LED icon resources accordingly.
    */
    for (i = 0; i < _countof(LedKey); i++)
    {
        if (LedKey[i].wScanCode == ScanCode)
        {
            InvalidateRect(GetDlgItem(Globals.hMainWnd, LedKey[i].DlgResource), NULL, FALSE);
        }
    }

    /* Extended key ? */
    if (ScanCode & 0x0200)
        bExtendedKey = TRUE;
    else
        bExtendedKey = FALSE;
    ScanCode &= SCANCODE_MASK;

    /* Press and release the key */
    if (bKeyDown)
    {
        Input.type = INPUT_KEYBOARD;
        Input.ki.wVk = 0;
        Input.ki.wScan = ScanCode;
        Input.ki.time = GetTickCount();
        Input.ki.dwExtraInfo = GetMessageExtraInfo();
        Input.ki.dwFlags = KEYEVENTF_SCANCODE;
        if (bExtendedKey) Input.ki.dwFlags |= KEYEVENTF_EXTENDEDKEY;
        SendInput(1, &Input, sizeof(Input));
    }

    if (bKeyUp)
    {
        Input.type = INPUT_KEYBOARD;
        Input.ki.wVk = 0;
        Input.ki.wScan = ScanCode;
        Input.ki.time = GetTickCount();
        Input.ki.dwExtraInfo = GetMessageExtraInfo();
        Input.ki.dwFlags = KEYEVENTF_SCANCODE | KEYEVENTF_KEYUP;
        if (bExtendedKey) Input.ki.dwFlags |= KEYEVENTF_EXTENDEDKEY;
        SendInput(1, &Input, sizeof(Input));
    }

    /* Play the sound during clicking event (only if "Use Click Sound" menu option is ticked) */
    if (Globals.bSoundClick)
    {
        PlaySoundW(MAKEINTRESOURCEW(IDI_SOUNDCLICK), GetModuleHandle(NULL), SND_RESOURCE | SND_ASYNC);
    }

    return TRUE;
}

Referenced by OSK_WndProc().

OSK_Create()

LRESULT OSK_Create

(

HWND

hwnd

)

Definition at line 372 of file main.c.

{
    HMONITOR monitor;
    MONITORINFO info;
    POINT Pt;
    RECT rcWindow, rcDlgIntersect;
    LOGFONTW lf = {0};

    /* Save handle */
    Globals.hMainWnd = hwnd;

    /* Init Font */
    lf.lfHeight = Globals.FontHeight;
    StringCchCopyW(lf.lfFaceName, _countof(Globals.FontFaceName), Globals.FontFaceName);
    Globals.hFont = CreateFontIndirectW(&lf);

    if (OSK_SetKeys(SETKEYS_INIT) == -1)
        return -1;

    /* Check the checked menu item before displaying the window */
    if (Globals.bIsEnhancedKeyboard)
    {
        /* Enhanced keyboard dialog chosen, set the respective menu item as checked */
        CheckMenuItem(GetMenu(hwnd), IDM_ENHANCED_KB, MF_BYCOMMAND | MF_CHECKED);
        CheckMenuItem(GetMenu(hwnd), IDM_STANDARD_KB, MF_BYCOMMAND | MF_UNCHECKED);
    }
    else
    {
        /* Standard keyboard dialog chosen, set the respective menu item as checked */
        CheckMenuItem(GetMenu(hwnd), IDM_STANDARD_KB, MF_BYCOMMAND | MF_CHECKED);
        CheckMenuItem(GetMenu(hwnd), IDM_ENHANCED_KB, MF_BYCOMMAND | MF_UNCHECKED);
    }

    /* Check if the "Click Sound" option was chosen before (and if so, then tick the menu item) */
    if (Globals.bSoundClick)
    {
        CheckMenuItem(GetMenu(hwnd), IDM_CLICK_SOUND, MF_BYCOMMAND | MF_CHECKED);
    }

    /* Get screen info */
    memset(&Pt, 0, sizeof(Pt));
    monitor = MonitorFromPoint(Pt, MONITOR_DEFAULTTOPRIMARY);
    info.cbSize = sizeof(info);
    GetMonitorInfoW(monitor, &info);
    GetWindowRect(hwnd, &rcWindow);

    /*
        If the coordination values are default then re-initialize using the specific formulas
        to move the dialog at the bottom of the screen.
    */
    if (Globals.PosX == CW_USEDEFAULT && Globals.PosY == CW_USEDEFAULT)
    {
        Globals.PosX = (info.rcMonitor.left + info.rcMonitor.right - (rcWindow.right - rcWindow.left)) / 2;
        Globals.PosY = info.rcMonitor.bottom - (rcWindow.bottom - rcWindow.top);
    }

    /*
        Calculate the intersection of two rectangle sources (dialog and work desktop area).
        If such sources do not intersect, then the dialog is deemed as "off screen".
    */
    if (IntersectRect(&rcDlgIntersect, &rcWindow, &info.rcWork) == 0)
    {
        Globals.PosX = (info.rcMonitor.left + info.rcMonitor.right - (rcWindow.right - rcWindow.left)) / 2;
        Globals.PosY = info.rcMonitor.bottom - (rcWindow.bottom - rcWindow.top);
    }
    else
    {
        /*
            There's still some intersection but we're not for sure if it is sufficient (the dialog could also be partially hidden).
            Therefore, check the remaining intersection if it's enough.
        */
        if (rcWindow.top < info.rcWork.top || rcWindow.left < info.rcWork.left || rcWindow.right > info.rcWork.right || rcWindow.bottom > info.rcWork.bottom)
        {
            Globals.PosX = (info.rcMonitor.left + info.rcMonitor.right - (rcWindow.right - rcWindow.left)) / 2;
            Globals.PosY = info.rcMonitor.bottom - (rcWindow.bottom - rcWindow.top);
        }
    }

    /*
        Place the window (with respective placement coordinates) as topmost, above
        every window which are not on top or are at the bottom of the Z order.
    */
    if (Globals.bAlwaysOnTop)
    {
        CheckMenuItem(GetMenu(hwnd), IDM_ON_TOP, MF_BYCOMMAND | MF_CHECKED);
        SetWindowPos(hwnd, HWND_TOPMOST, Globals.PosX, Globals.PosY, 0, 0, SWP_NOSIZE);
    }
    else
    {
        CheckMenuItem(GetMenu(hwnd), IDM_ON_TOP, MF_BYCOMMAND | MF_UNCHECKED);
        SetWindowPos(hwnd, HWND_NOTOPMOST, Globals.PosX, Globals.PosY, 0, 0, SWP_NOSIZE);
    }

    /* Create a green brush for leds */
    Globals.hBrushGreenLed = CreateSolidBrush(RGB(0, 255, 0));

    /* Set a timer for periodic tasks */
    Globals.iTimer = SetTimer(hwnd, 0, 100, NULL);

    /* If the member of the struct (bShowWarning) is set then display the dialog box */
    if (Globals.bShowWarning)
    {
        /* If for whatever reason the thread fails to be created then handle the dialog box in main thread... */
        if (CreateThread(NULL, 0, OSK_WarningDlgThread, (PVOID)Globals.hInstance, 0, NULL) == NULL)
        {
            DialogBoxW(Globals.hInstance, MAKEINTRESOURCEW(IDD_WARNINGDIALOG_OSK), Globals.hMainWnd, OSK_WarningProc);
        }
    }

    return 0;
}

Referenced by OSK_WndProc().

OSK_DestroyKeys()

VOID OSK_DestroyKeys

(

VOID

)

Definition at line 162 of file main.c.

{
    int i;
    /* Hide before destroying child controls */
    ShowWindow(Globals.hMainWnd, SW_HIDE);

    for (i = 0; i < Globals.Keyboard->KeyCount; i++)
    {
        DestroyWindow(Globals.hKeys[i]);
    }
    for (i = 0; i < _countof(LedKey); i++)
    {
        DestroyWindow(GetDlgItem(Globals.hMainWnd, LedKey[i].DlgResource));
    }

    HeapFree(GetProcessHeap(), 0, Globals.hKeys);
    Globals.hKeys = NULL;
    Globals.Keyboard = NULL;
}

Referenced by OSK_Close(), and OSK_SetKeys().

OSK_Paint()

LRESULT OSK_Paint

(

HWND

hwnd

)

Definition at line 756 of file main.c.

{
    PAINTSTRUCT ps;
    RECT rcText;
    HFONT hOldFont = NULL;
    WCHAR szTemp[MAX_PATH];

    HDC hdc = BeginPaint(hwnd, &ps);

    if (Globals.hFont)
        hOldFont = SelectObject(hdc, Globals.hFont);

    rcText.left   = Globals.Keyboard->LedTextStart.x;
    rcText.top    = Globals.Keyboard->LedTextStart.y;
    rcText.right  = rcText.left + Globals.Keyboard->LedTextSize.cx;
    rcText.bottom = rcText.top + Globals.Keyboard->LedTextSize.cy;

    LoadStringW(Globals.hInstance, IDS_NUMLOCK, szTemp, _countof(szTemp));
    DrawTextW(hdc, szTemp, -1, &rcText, DT_NOCLIP);

    OffsetRect(&rcText, Globals.Keyboard->LedTextOffset, 0);
    
    LoadStringW(Globals.hInstance, IDS_CAPSLOCK, szTemp, _countof(szTemp));
    DrawTextW(hdc, szTemp, -1, &rcText, DT_NOCLIP);

    OffsetRect(&rcText, Globals.Keyboard->LedTextOffset, 0);
 
    LoadStringW(Globals.hInstance, IDS_SCROLLLOCK, szTemp, _countof(szTemp));
    DrawTextW(hdc, szTemp, -1, &rcText, DT_NOCLIP);

    if (hOldFont)
        SelectObject(hdc, hOldFont);

    EndPaint(hwnd, &ps);

    return 0;
}

Referenced by OSK_WndProc().

OSK_RefreshLEDKeys()

VOID OSK_RefreshLEDKeys

(

VOID

)

Definition at line 522 of file main.c.

{
    INT i;
    BOOL bKeyIsPressed;

    for (i = 0; i < _countof(LedKey); i++)
    {
        bKeyIsPressed = (GetAsyncKeyState(LedKey[i].vKey) & 0x8000) != 0;
        if (LedKey[i].bWasKeyPressed != bKeyIsPressed)
        {
            LedKey[i].bWasKeyPressed = bKeyIsPressed;
            InvalidateRect(GetDlgItem(Globals.hMainWnd, LedKey[i].DlgResource), NULL, FALSE);
        }
    }
}

Referenced by OSK_Timer().

OSK_ReleaseKey()

BOOL OSK_ReleaseKey

(

WORD

ScanCode

)

Definition at line 715 of file main.c.

{
    INPUT Input;
    BOOL bExtendedKey;
    LONG WindowStyle;
    HWND hWndControl;

    /* Is it a 2-states key ? */
    hWndControl = GetDlgItem(Globals.hMainWnd, ScanCode);
    WindowStyle = GetWindowLongW(hWndControl, GWL_STYLE);
    if ((WindowStyle & BS_AUTOCHECKBOX) != BS_AUTOCHECKBOX) return FALSE;

    /* Is the key down ? */
    if (SendMessageW(hWndControl, BM_GETCHECK, 0, 0) != BST_CHECKED) return TRUE;

    /* Extended key ? */
    if (ScanCode & 0x0200)
        bExtendedKey = TRUE;
    else
        bExtendedKey = FALSE;
    ScanCode &= SCANCODE_MASK;

    /* Release the key */
    Input.type = INPUT_KEYBOARD;
    Input.ki.wVk = 0;
    Input.ki.wScan = ScanCode;
    Input.ki.time = GetTickCount();
    Input.ki.dwExtraInfo = GetMessageExtraInfo();
    Input.ki.dwFlags = KEYEVENTF_SCANCODE | KEYEVENTF_KEYUP;
    if (bExtendedKey) Input.ki.dwFlags |= KEYEVENTF_EXTENDEDKEY;
    SendInput(1, &Input, sizeof(Input));

    return TRUE;
}

Referenced by OSK_Close().

OSK_SetImage()

int OSK_SetImage	(	int	IdDlgItem,
		int	IdResource
	)

Definition at line 33 of file main.c.

{
    HICON hIcon;
    HWND hWndItem;

    hIcon = (HICON)LoadImageW(Globals.hInstance, MAKEINTRESOURCEW(IdResource),
                              IMAGE_ICON, 16, 16, LR_DEFAULTCOLOR);
    if (hIcon == NULL)
        return FALSE;

    hWndItem = GetDlgItem(Globals.hMainWnd, IdDlgItem);
    if (hWndItem == NULL)
    {
        DestroyIcon(hIcon);
        return FALSE;
    }

    SendMessageW(hWndItem, BM_SETIMAGE, (WPARAM)IMAGE_ICON, (LPARAM)hIcon);

    /* The system automatically deletes these resources when the process that created them terminates (MSDN) */

    return TRUE;
}

Referenced by OSK_SetKeys().

OSK_SetKeys()

LRESULT OSK_SetKeys

(

int

reason

)

Definition at line 188 of file main.c.

{
    WCHAR wKey[2];
    BYTE bKeyStates[256];
    LPCWSTR szKey;
    PKEY Keys;
    UINT uVirtKey;
    POINT LedPos;
    SIZE LedSize;
    int i, yPad;

    /* Get key states before doing anything */
    if (!GetKeyboardState(bKeyStates))
    {
        DPRINT("OSK_SetKeys(): GetKeyboardState() call failed.\n");
        return -1;
    }

    switch (reason)
    {
        case SETKEYS_LANG:
        {
            /* Keyboard language/caps change, just update the button texts */
            Keys = Globals.Keyboard->Keys;
            for (i = 0; i < Globals.Keyboard->KeyCount; i++)
            {
                if (!Keys[i].translate)
                    continue;

                uVirtKey = MapVirtualKeyW(Keys[i].scancode & SCANCODE_MASK, MAPVK_VSC_TO_VK);

                if (ToUnicode(uVirtKey, Keys[i].scancode & SCANCODE_MASK, bKeyStates, wKey, _countof(wKey), 0) >= 1)
                {
                    szKey = wKey;
                }
                else
                {
                    szKey = Keys[i].name;
                }

                /* Only one & the button will try to underline the next character... */
                if (wcsncmp(szKey, L"&", 1) == 0)
                    szKey = L"&&";

                SetWindowTextW(Globals.hKeys[i], szKey);
            }
            return 0;
        }
        case SETKEYS_LAYOUT:
        {
            /* Clear up current layout before applying a different one */
            OSK_DestroyKeys();
        }
        /* Fallthrough */
        case SETKEYS_INIT:
        {             
            if (Globals.bIsEnhancedKeyboard)
            {
                Globals.Keyboard = &EnhancedKeyboard;
            }
            else
            {
                Globals.Keyboard = &StandardKeyboard;
            }

            Globals.hKeys = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(HWND) * Globals.Keyboard->KeyCount);

            if (!Globals.hKeys)
            {
                DPRINT("OSK_SetKeys(): Failed to allocate memory for button handles.\n");
                return -1;
            }

            Keys = Globals.Keyboard->Keys;

            /* Create key buttons */
            for (i = 0; i < Globals.Keyboard->KeyCount; i++)
            {
                uVirtKey = MapVirtualKeyW(Keys[i].scancode & SCANCODE_MASK, MAPVK_VSC_TO_VK);

                if (Keys[i].translate && ToUnicode(uVirtKey, Keys[i].scancode & SCANCODE_MASK, bKeyStates, wKey, _countof(wKey), 0) >= 1)
                {
                    szKey = wKey;
                }
                else
                {
                    szKey = Keys[i].name;
                }
                
                Globals.hKeys[i] = CreateWindowW(WC_BUTTONW,
                                                 szKey,
                                                 WS_VISIBLE | WS_CHILD | BS_PUSHBUTTON | Keys[i].flags,
                                                 Keys[i].x,
                                                 Keys[i].y,
                                                 Keys[i].cx,
                                                 Keys[i].cy,
                                                 Globals.hMainWnd,
                                                 (HMENU)Keys[i].scancode,
                                                 Globals.hInstance,
                                                 NULL);
                if (Globals.hFont)
                    SendMessageW(Globals.hKeys[i], WM_SETFONT, (WPARAM)Globals.hFont, 0);
            }

            /* Add additional padding for caption and menu */
            yPad = GetSystemMetrics(SM_CYSIZE) + GetSystemMetrics(SM_CYMENU);
            /* Size window according to layout */
            SetWindowPos(Globals.hMainWnd,
                         (Globals.bAlwaysOnTop ? HWND_TOPMOST : HWND_NOTOPMOST),
                         0,
                         0,
                         Globals.Keyboard->Size.cx,
                         Globals.Keyboard->Size.cy + yPad,
                         SWP_NOMOVE);
            
            /* Create LEDs */
            LedPos  = Globals.Keyboard->LedStart;
            LedSize = Globals.Keyboard->LedSize;

            CreateWindowW(WC_STATICW, L"", WS_VISIBLE | WS_CHILD | SS_CENTER | SS_NOTIFY,
                LedPos.x, LedPos.y, LedSize.cx, LedSize.cy, Globals.hMainWnd,
                (HMENU)IDC_LED_NUM, Globals.hInstance, NULL);
            
            LedPos.x += Globals.Keyboard->LedGap;

            CreateWindowW(WC_STATICW, L"", WS_VISIBLE | WS_CHILD | SS_CENTER | SS_NOTIFY,
                LedPos.x, LedPos.y, LedSize.cx, LedSize.cy, Globals.hMainWnd,
                (HMENU)IDC_LED_CAPS, Globals.hInstance, NULL);

            LedPos.x += Globals.Keyboard->LedGap;

            CreateWindowW(WC_STATICW, L"", WS_VISIBLE | WS_CHILD | SS_CENTER | SS_NOTIFY,
                LedPos.x, LedPos.y, LedSize.cx, LedSize.cy, Globals.hMainWnd,
                (HMENU)IDC_LED_SCROLL, Globals.hInstance, NULL);

            /* Set system keys text */
            OSK_SetText(SCAN_CODE_110, IDS_ESCAPE);
            OSK_SetText(SCAN_CODE_124, IDS_PRN);
            OSK_SetText(SCAN_CODE_125, IDS_STOP);
            OSK_SetText(SCAN_CODE_126, IDS_ATTN);
            OSK_SetText(SCAN_CODE_90, IDS_NUMLOCKKEY);
            OSK_SetText(SCAN_CODE_75, IDS_INSERT);
            OSK_SetText(SCAN_CODE_76, IDS_DELETE);
            OSK_SetText(SCAN_CODE_81, IDS_END);
            OSK_SetText(SCAN_CODE_58, IDS_CTRL);     /* Left ctrl */
            OSK_SetText(SCAN_CODE_64, IDS_CTRL);     /* Right ctrl */
            OSK_SetText(SCAN_CODE_60, IDS_LEFTALT);
            OSK_SetText(SCAN_CODE_62, IDS_RIGHTALT);

            /* Set icon on visual buttons */
            OSK_SetImage(SCAN_CODE_15, IDI_BACK);
            OSK_SetImage(SCAN_CODE_16, IDI_TAB);
            OSK_SetImage(SCAN_CODE_30, IDI_CAPS_LOCK);
            OSK_SetImage(SCAN_CODE_43, IDI_RETURN);
            OSK_SetImage(SCAN_CODE_44, IDI_SHIFT);
            OSK_SetImage(SCAN_CODE_57, IDI_SHIFT);
            OSK_SetImage(SCAN_CODE_127, IDI_REACTOS);
            OSK_SetImage(SCAN_CODE_128, IDI_REACTOS);
            OSK_SetImage(SCAN_CODE_129, IDI_MENU);
            OSK_SetImage(SCAN_CODE_80, IDI_HOME);
            OSK_SetImage(SCAN_CODE_85, IDI_PG_UP);
            OSK_SetImage(SCAN_CODE_86, IDI_PG_DOWN);
            OSK_SetImage(SCAN_CODE_79, IDI_LEFT);
            OSK_SetImage(SCAN_CODE_83, IDI_TOP);
            OSK_SetImage(SCAN_CODE_84, IDI_BOTTOM);
            OSK_SetImage(SCAN_CODE_89, IDI_RIGHT);
        }
    }

    if (reason != SETKEYS_INIT)
    {
        ShowWindow(Globals.hMainWnd, SW_SHOW);
        UpdateWindow(Globals.hMainWnd);
    }

    return 0;
}

Referenced by OSK_Create(), OSK_Timer(), and OSK_WndProc().

OSK_SetText()

void OSK_SetText	(	int	IdDlgItem,
		int	IdResource
	)

Definition at line 63 of file main.c.

{
    WCHAR szText[MAX_PATH];
    HWND hWndItem;

    hWndItem = GetDlgItem(Globals.hMainWnd, IdDlgItem);

    if (hWndItem == NULL)
        return;

    LoadStringW(Globals.hInstance, IdResource, szText, _countof(szText));

    SetWindowTextW(hWndItem, szText);
}

Referenced by OSK_SetKeys().

OSK_Timer()

int OSK_Timer

(

void

)

Definition at line 544 of file main.c.

{
    HWND hWndActiveWindow;
    DWORD dwThread;
    HKL hKeyboardLayout;

    hWndActiveWindow = GetForegroundWindow();
    if (hWndActiveWindow != NULL && hWndActiveWindow != Globals.hMainWnd)
    {
        /* Grab the current keyboard layout from the foreground window */
        dwThread = GetWindowThreadProcessId(hWndActiveWindow, NULL);
        hKeyboardLayout = GetKeyboardLayout(dwThread);
        /* Activate the layout */
        ActivateKeyboardLayout(hKeyboardLayout, 0);
    }

    /*
        Update the LED key indicators accordingly to their state (if one
        of the specific keys is held down).
    */
    OSK_RefreshLEDKeys();
    /* Update the buttons */
    OSK_SetKeys(SETKEYS_LANG);

    return TRUE;
}

Referenced by OSK_WndProc().

OSK_WarningDlgThread()

DWORD WINAPI OSK_WarningDlgThread

(

LPVOID

lpParameter

)

Definition at line 124 of file main.c.

{
    HINSTANCE hInstance = (HINSTANCE)lpParameter;

    DialogBoxW(hInstance, MAKEINTRESOURCEW(IDD_WARNINGDIALOG_OSK), Globals.hMainWnd, OSK_WarningProc);
    return 0;
}

Referenced by OSK_Create().

OSK_WarningProc()

INT_PTR CALLBACK OSK_WarningProc	(	HWND	hDlg,
		UINT	Msg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 83 of file main.c.

{
    UNREFERENCED_PARAMETER(lParam);

    switch (Msg)
    {
        case WM_INITDIALOG:
        {
            return TRUE;
        }

        case WM_COMMAND:
        {
            switch (LOWORD(wParam))
            {
                case IDC_SHOWWARNINGCHECK:
                {
                    Globals.bShowWarning = !IsDlgButtonChecked(hDlg, IDC_SHOWWARNINGCHECK);
                    return TRUE;
                }

                case IDOK:
                case IDCANCEL:
                {
                    EndDialog(hDlg, LOWORD(wParam));
                    return TRUE;
                }
            }
            break;
        }
    }

    return FALSE;
}

Referenced by OSK_Create(), and OSK_WarningDlgThread().

OSK_WndProc()

LRESULT APIENTRY OSK_WndProc	(	HWND	hwnd,
		UINT	msg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 797 of file main.c.

{
    switch (msg)
    {
        case WM_CREATE:
            return OSK_Create(hwnd);

        case WM_PAINT:
            return OSK_Paint(hwnd);

        case WM_TIMER:
            return OSK_Timer();

        case WM_CTLCOLORSTATIC:
            if ((HWND)lParam == GetDlgItem(hwnd, IDC_LED_NUM))
            {
                if (GetKeyState(VK_NUMLOCK) & 0x0001)
                    return (LRESULT)Globals.hBrushGreenLed;
                else
                    return (LRESULT)GetStockObject(BLACK_BRUSH);
            }
            if ((HWND)lParam == GetDlgItem(hwnd, IDC_LED_CAPS))
            {
                if (GetKeyState(VK_CAPITAL) & 0x0001)
                    return (LRESULT)Globals.hBrushGreenLed;
                else
                    return (LRESULT)GetStockObject(BLACK_BRUSH);
            }
            if ((HWND)lParam == GetDlgItem(hwnd, IDC_LED_SCROLL))
            {
                if (GetKeyState(VK_SCROLL) & 0x0001)
                    return (LRESULT)Globals.hBrushGreenLed;
                else
                    return (LRESULT)GetStockObject(BLACK_BRUSH);
            }
            break;

        case WM_COMMAND:
            switch (LOWORD(wParam))
            {
                case IDM_EXIT:
                {
                    PostMessageW(hwnd, WM_CLOSE, 0, 0);
                    break;
                }

                case IDM_ENHANCED_KB:
                {
                    if (!Globals.bIsEnhancedKeyboard)
                    {
                        /*
                            The user attempted to switch to enhanced keyboard dialog type.
                            Set the member value as TRUE, destroy the dialog and save the data configuration into the registry.
                        */
                        Globals.bIsEnhancedKeyboard = TRUE;
                        SaveSettings();

                        /* Change the condition of enhanced keyboard item menu to checked */
                        CheckMenuItem(GetMenu(hwnd), IDM_ENHANCED_KB, MF_BYCOMMAND | MF_CHECKED);
                        CheckMenuItem(GetMenu(hwnd), IDM_STANDARD_KB, MF_BYCOMMAND | MF_UNCHECKED);

                        /* Finally, update the key layout */
                        LoadSettings();
                        OSK_SetKeys(SETKEYS_LAYOUT);
                    }

                    break;
                }

                case IDM_STANDARD_KB:
                {
                    if (Globals.bIsEnhancedKeyboard)
                    {
                        /*
                            The user attempted to switch to standard keyboard dialog type.
                            Set the member value as FALSE, destroy the dialog and save the data configuration into the registry.
                        */
                        Globals.bIsEnhancedKeyboard = FALSE;
                        SaveSettings();

                        /* Change the condition of standard keyboard item menu to checked */
                        CheckMenuItem(GetMenu(hwnd), IDM_ENHANCED_KB, MF_BYCOMMAND | MF_UNCHECKED);
                        CheckMenuItem(GetMenu(hwnd), IDM_STANDARD_KB, MF_BYCOMMAND | MF_CHECKED);

                        /* Finally, update the key layout */
                        LoadSettings();
                        OSK_SetKeys(SETKEYS_LAYOUT);
                    }

                    break;
                }

                case IDM_CLICK_SOUND:
                {
                    /*
                        This case is triggered when the user attempts to click on the menu item. Before doing anything,
                        we must check the condition state of such menu item so that we can tick/untick the menu item accordingly.
                    */
                    if (!Globals.bSoundClick)
                    {
                        Globals.bSoundClick = TRUE;
                        CheckMenuItem(GetMenu(hwnd), IDM_CLICK_SOUND, MF_BYCOMMAND | MF_CHECKED);
                    }
                    else
                    {
                        Globals.bSoundClick = FALSE;
                        CheckMenuItem(GetMenu(hwnd), IDM_CLICK_SOUND, MF_BYCOMMAND | MF_UNCHECKED);
                    }

                    break;
                }

                case IDM_ON_TOP:
                {
                    /*
                        Check the condition state before disabling/enabling the menu
                        item and change the topmost order.
                    */
                    if (!Globals.bAlwaysOnTop)
                    {
                        Globals.bAlwaysOnTop = TRUE;
                        CheckMenuItem(GetMenu(hwnd), IDM_ON_TOP, MF_BYCOMMAND | MF_CHECKED);
                        SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE);
                    }
                    else
                    {
                        Globals.bAlwaysOnTop = FALSE;
                        CheckMenuItem(GetMenu(hwnd), IDM_ON_TOP, MF_BYCOMMAND | MF_UNCHECKED);
                        SetWindowPos(hwnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE);
                    }

                    break;
                }

                case IDM_FONT:
                {
                    OSK_ChooseFont();
                    break;
                }

                case IDM_ABOUT:
                {
                    OSK_About();
                    break;
                }

                default:
                    OSK_Command(wParam, (HWND)lParam);
                    break;
            }
            return 0;

        case WM_THEMECHANGED:
            /* Redraw the dialog (and its control buttons) using the new theme */
            InvalidateRect(hwnd, NULL, FALSE);
            return 0;

        case WM_CLOSE:
            OSK_Close();
            PostQuitMessage(0);
            return 0;
    }
    return DefWindowProcW(hwnd, msg, wParam, lParam);
}

Referenced by wWinMain().

wWinMain()

int WINAPI wWinMain	(	HINSTANCE	hInstance,
		HINSTANCE	hPrevInstance,
		LPWSTR	lpCmdLine,
		int	nShowCmd
	)

This file has no copyright assigned and is placed in the Public Domain. This file is part of the w64 mingw-runtime package. No warranty is given; refer to the file DISCLAIMER.PD within this package.

Definition at line 966 of file main.c.

{
    DWORD dwError;
    HANDLE hMutex;
    INITCOMMONCONTROLSEX iccex;
    WNDCLASSEXW wc = {0};
    MSG msg;
    HWND hwnd;

    UNREFERENCED_PARAMETER(prev);
    UNREFERENCED_PARAMETER(cmdline);
    UNREFERENCED_PARAMETER(show);

    /*
        Obtain a mutex for the program. This will ensure that
        the program is launched only once.
    */
    hMutex = CreateMutexW(NULL, FALSE, L"OSKRunning");

    if (hMutex)
    {
        /* Check if there's already a mutex for the program */
        dwError = GetLastError();

        if (dwError == ERROR_ALREADY_EXISTS)
        {
            /*
                A mutex with the object name has been created previously.
                Therefore, another instance is already running.
            */
            DPRINT("wWinMain(): Failed to create a mutex! The program instance is already running.\n");
            CloseHandle(hMutex);
            return 0;
        }
    }

    /* Load the common controls */
    iccex.dwSize = sizeof(INITCOMMONCONTROLSEX);
    iccex.dwICC = ICC_STANDARD_CLASSES | ICC_WIN95_CLASSES;
    InitCommonControlsEx(&iccex);

    ZeroMemory(&Globals, sizeof(Globals));
    Globals.hInstance = hInstance;

    /* Load the application's settings from the registry */
    LoadSettings();

    /* Define the window class */
    wc.cbSize        = sizeof(wc);
    wc.hInstance     = Globals.hInstance;
    wc.lpfnWndProc   = OSK_WndProc;
    wc.lpszMenuName  = MAKEINTRESOURCEW(IDR_OSK_MENU);
    wc.lpszClassName = OSK_CLASS;
    wc.style         = CS_HREDRAW | CS_VREDRAW;
    wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
    /* Set the application's icon */
    wc.hIcon = LoadImageW(Globals.hInstance, MAKEINTRESOURCEW(IDI_OSK), IMAGE_ICON, 0, 0, LR_SHARED | LR_DEFAULTSIZE);
    wc.hIconSm = CopyImage(wc.hIcon, IMAGE_ICON, GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON), LR_COPYFROMRESOURCE);

    if (!RegisterClassExW(&wc))
        goto quit;

    /* Load window title */
    LoadStringW(Globals.hInstance, IDS_OSK, Globals.szTitle, _countof(Globals.szTitle));

    hwnd = CreateWindowExW(WS_EX_TOPMOST | WS_EX_APPWINDOW | WS_EX_NOACTIVATE,
                           OSK_CLASS,
                           Globals.szTitle,
                           WS_SYSMENU | WS_MINIMIZEBOX,
                           CW_USEDEFAULT,
                           CW_USEDEFAULT,
                           CW_USEDEFAULT,
                           CW_USEDEFAULT,
                           NULL,
                           NULL,
                           Globals.hInstance,
                           NULL);

    if (!hwnd)
        goto quit;

    ShowWindow(hwnd, SW_SHOW);
    UpdateWindow(hwnd);
    
    while (GetMessageW(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessageW(&msg);
    }

quit:
    /* Delete the mutex */
    if (hMutex)
    {
        CloseHandle(hMutex);
    }

    return 0;
}

Variable Documentation

Globals

OSK_GLOBALS Globals

Definition at line 16 of file main.c.

LedKey

OSK_KEYLEDINDICATOR LedKey[]

Initial value:

=
{
    {VK_NUMLOCK, IDC_LED_NUM, 0x0145, FALSE},
    {VK_CAPITAL, IDC_LED_CAPS, 0x013A, FALSE},
    {VK_SCROLL, IDC_LED_SCROLL, 0x0146, FALSE}
}

Definition at line 18 of file main.c.

Referenced by OSK_Command(), OSK_DestroyKeys(), and OSK_RefreshLEDKeys().