dateandtime.c File Reference

#include "timedate.h"

Include dependency graph for dateandtime.c:

Go to the source code of this file.

Functions
BOOL	SystemSetLocalTime (LPSYSTEMTIME lpSystemTime)
static VOID	SetLocalSystemTime (HWND hwnd)
static VOID	SetTimeZoneName (HWND hwnd)
static VOID	FillMonthsComboBox (HWND hCombo)
static WORD	GetCBSelectedMonth (HWND hCombo)
static VOID	ChangeMonthCalDate (HWND hMonthCal, WORD Day, WORD Month, WORD Year)
static VOID	AutoUpdateMonthCal (HWND hwndDlg, PNMMCCAUTOUPDATE lpAutoUpdate)
static INT_PTR CALLBACK	DTPProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
INT_PTR CALLBACK	DateTimePageProc (HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)

Variables
static WNDPROC	pOldWndProc = NULL

Function Documentation

AutoUpdateMonthCal()

static VOID AutoUpdateMonthCal ( HWND  hwndDlg, PNMMCCAUTOUPDATE  lpAutoUpdate  )

static

Definition at line 234 of file dateandtime.c.

{
    UNREFERENCED_PARAMETER(lpAutoUpdate);
 
    /* Update the controls */
    FillMonthsComboBox(GetDlgItem(hwndDlg,
                                  IDC_MONTHCB));
}

Referenced by DateTimePageProc().

ChangeMonthCalDate()

static VOID ChangeMonthCalDate ( HWND  hMonthCal, WORD  Day, WORD  Month, WORD  Year  )

static

Definition at line 220 of file dateandtime.c.

{
    SendMessageW(hMonthCal,
                 MCCM_SETDATE,
                 MAKEWPARAM(Day,
                            Month),
                 MAKELPARAM(Year,
                            0));
}

Referenced by DateTimePageProc().

DateTimePageProc()

INT_PTR CALLBACK DateTimePageProc	(	HWND	hwndDlg,
		UINT	uMsg,
		WPARAM	wParam,
		LPARAM	lParam
	)

Definition at line 265 of file dateandtime.c.

{
    SYSTEMTIME st;
    GetLocalTime(&st);
 
    switch (uMsg)
    {
        case WM_INITDIALOG:
            FillMonthsComboBox(GetDlgItem(hwndDlg,
                                          IDC_MONTHCB));
 
            /* Set range and current year */
            SendMessageW(GetDlgItem(hwndDlg, IDC_YEAR), UDM_SETRANGE, 0, MAKELONG ((short) 9999, (short) 1900));
            SendMessageW(GetDlgItem(hwndDlg, IDC_YEAR), UDM_SETPOS, 0, MAKELONG( (short) st.wYear, 0));
 
            pOldWndProc = (WNDPROC)SetWindowLongPtrW(GetDlgItem(hwndDlg, IDC_TIMEPICKER), GWLP_WNDPROC, (LONG_PTR)DTPProc);
 
            SetTimer(hwndDlg, ID_TIMER, 1000 - st.wMilliseconds, NULL);
            break;
 
        case WM_TIMER:
            SendMessageW(GetDlgItem(hwndDlg, IDC_TIMEPICKER), DTM_SETSYSTEMTIME, GDT_VALID, (LPARAM) &st);
 
            // Reset timeout.
            SetTimer(hwndDlg, ID_TIMER, 1000 - st.wMilliseconds, NULL);
            break;
 
        case WM_COMMAND:
            switch (LOWORD(wParam))
            {
                case IDC_MONTHCB:
                    if (HIWORD(wParam) == CBN_SELCHANGE)
                    {
                        ChangeMonthCalDate(GetDlgItem(hwndDlg,
                                                      IDC_MONTHCALENDAR),
                                                      (WORD) -1,
                                                      GetCBSelectedMonth((HWND)lParam),
                                                      (WORD) -1);
                    }
                    break;
            }
            break;
 
        case WM_CTLCOLORSTATIC:
            if ((HWND)lParam == GetDlgItem(hwndDlg, IDC_YEARTEXT))
                return (INT_PTR)GetSysColorBrush(COLOR_WINDOW);
            break;
 
        case WM_NOTIFY:
        {
            LPNMHDR lpnm = (LPNMHDR)lParam;
 
            switch (lpnm->idFrom)
            {
                case IDC_YEAR:
                    switch (lpnm->code)
                    {
                        case UDN_DELTAPOS:
                        {
                            SHORT wYear;
                            LPNMUPDOWN updown = (LPNMUPDOWN)lpnm;
                            wYear = (SHORT)SendMessageW(GetDlgItem(hwndDlg, IDC_YEAR), UDM_GETPOS, 0, 0);
                            /* Enable the 'Apply' button */
                            PropSheet_Changed(GetParent(hwndDlg), hwndDlg);
                            ChangeMonthCalDate(GetDlgItem(hwndDlg,
                                               IDC_MONTHCALENDAR),
                                               (WORD) -1,
                                               (WORD) -1,
                                               (WORD) (wYear + updown->iDelta));
                        }
                        break;
                    }
                    break;
 
                case IDC_TIMEPICKER:
                    switch (lpnm->code)
                    {
                        case DTN_DATETIMECHANGE:
                            /* Stop the timer */
                            KillTimer(hwndDlg, ID_TIMER);
 
                            /* Tell the clock to stop ticking */
                            SendDlgItemMessageW(hwndDlg, IDC_CLOCKWND, CLM_STOPCLOCK,
                                                0, 0);
 
                            // TODO: Set the clock to the input time.
 
                            /* Enable the 'Apply' button */
                            PropSheet_Changed(GetParent(hwndDlg), hwndDlg);
                            break;
                    }
                    break;
 
                case IDC_MONTHCALENDAR:
                    switch (lpnm->code)
                    {
                        case MCCN_SELCHANGE:
                            /* Enable the 'Apply' button */
                            PropSheet_Changed(GetParent(hwndDlg), hwndDlg);
                            break;
 
                        case MCCN_AUTOUPDATE:
                            AutoUpdateMonthCal(hwndDlg,
                                                 (PNMMCCAUTOUPDATE)lpnm);
                            break;
                    }
                    break;
 
                default:
                    switch (lpnm->code)
                    {
                        case PSN_SETACTIVE:
                            SetTimeZoneName(hwndDlg);
                            break;
 
                        case PSN_APPLY:
                            SetLocalSystemTime(hwndDlg);
 
                            /* Tell the clock to start ticking */
                            SendDlgItemMessageW(hwndDlg, IDC_CLOCKWND, CLM_STARTCLOCK,
                                                0, 0);
 
                            SetTimer(hwndDlg, ID_TIMER, 1000 - st.wMilliseconds, NULL);
                            return TRUE;
                    }
                    break;
            }
        }
        break;
 
        case WM_TIMECHANGE:
            /* FIXME: We don't get this message as we're not a top-level window... */
            SendMessageW(GetDlgItem(hwndDlg,
                                    IDC_MONTHCALENDAR),
                         MCCM_RESET,
                         0,
                         0);
            break;
 
        case WM_DESTROY:
            KillTimer(hwndDlg, ID_TIMER);
            break;
    }
 
    return FALSE;
}

Referenced by Applet().

DTPProc()

static INT_PTR CALLBACK DTPProc ( HWND  hwnd, UINT  uMsg, WPARAM  wParam, LPARAM  lParam  )

static

Definition at line 246 of file dateandtime.c.

{
    switch (uMsg)
    {
        case WM_KEYDOWN:
            /* Stop the timer when the user is about to change the time */
            if ((wParam != VK_LEFT) & (wParam != VK_RIGHT))
                KillTimer(GetParent(hwnd), ID_TIMER);
            break;
    }
 
    return CallWindowProcW(pOldWndProc, hwnd, uMsg, wParam, lParam);
}

Referenced by DateTimePageProc().

FillMonthsComboBox()

static VOID FillMonthsComboBox ( HWND  hCombo )

static

Definition at line 146 of file dateandtime.c.

{
    SYSTEMTIME LocalDate = {0};
    WCHAR szBuf[64];
    INT i;
    UINT Month;
 
    GetLocalTime(&LocalDate);
 
    SendMessageW(hCombo,
                 CB_RESETCONTENT,
                 0,
                 0);
 
    for (Month = 1;
         Month <= 13;
         Month++)
    {
        i = GetLocaleInfoW(LOCALE_USER_DEFAULT,
                           ((Month < 13) ? LOCALE_SMONTHNAME1 + Month - 1 : LOCALE_SMONTHNAME13),
                           szBuf,
                           sizeof(szBuf) / sizeof(szBuf[0]));
        if (i > 1)
        {
            i = (INT)SendMessageW(hCombo,
                                  CB_ADDSTRING,
                                  0,
                                  (LPARAM)szBuf);
            if (i != CB_ERR)
            {
                SendMessageW(hCombo,
                             CB_SETITEMDATA,
                             (WPARAM)i,
                             Month);
 
                if (Month == (UINT)LocalDate.wMonth)
                {
                    SendMessageW(hCombo,
                                 CB_SETCURSEL,
                                 (WPARAM)i,
                                 0);
                }
            }
        }
    }
}

Referenced by AutoUpdateMonthCal(), and DateTimePageProc().

GetCBSelectedMonth()

static WORD GetCBSelectedMonth ( HWND  hCombo )

static

Definition at line 195 of file dateandtime.c.

{
    INT i;
    WORD Ret = (WORD)-1;
 
    i = (INT)SendMessageW(hCombo,
                          CB_GETCURSEL,
                          0,
                          0);
    if (i != CB_ERR)
    {
        i = (INT)SendMessageW(hCombo,
                              CB_GETITEMDATA,
                              (WPARAM)i,
                              0);
 
        if (i >= 1 && i <= 13)
            Ret = (WORD)i;
    }
 
    return Ret;
}

Referenced by DateTimePageProc().

SetLocalSystemTime()

static VOID SetLocalSystemTime ( HWND  hwnd )

static

Definition at line 76 of file dateandtime.c.

{
    SYSTEMTIME Time;
 
    if (DateTime_GetSystemtime(GetDlgItem(hwnd,
                                          IDC_TIMEPICKER),
                               &Time) == GDT_VALID &&
        SendMessageW(GetDlgItem(hwnd,
                                IDC_MONTHCALENDAR),
                     MCCM_GETDATE,
                     (WPARAM)&Time,
                     0))
    {
        SystemSetLocalTime(&Time);
 
        SetWindowLongPtrW(hwnd,
                          DWLP_MSGRESULT,
                          PSNRET_NOERROR);
 
        SendMessageW(GetDlgItem(hwnd,
                                IDC_MONTHCALENDAR),
                     MCCM_RESET,
                     (WPARAM)&Time,
                     0);
 
        /* Broadcast the time change message */
        SendMessageW(HWND_BROADCAST,
                     WM_TIMECHANGE,
                     0,
                     0);
    }
}

Referenced by DateTimePageProc().

SetTimeZoneName()

static VOID SetTimeZoneName ( HWND  hwnd )

static

Definition at line 111 of file dateandtime.c.

{
    TIME_ZONE_INFORMATION TimeZoneInfo;
    WCHAR TimeZoneString[128];
    WCHAR TimeZoneText[128];
    WCHAR TimeZoneName[128];
    DWORD TimeZoneId;
 
    TimeZoneId = GetTimeZoneInformation(&TimeZoneInfo);
 
    LoadStringW(hApplet, IDS_TIMEZONETEXT, TimeZoneText, 128);
 
    switch (TimeZoneId)
    {
        case TIME_ZONE_ID_STANDARD:
        case TIME_ZONE_ID_UNKNOWN:
            wcscpy(TimeZoneName, TimeZoneInfo.StandardName);
            break;
 
        case TIME_ZONE_ID_DAYLIGHT:
            wcscpy(TimeZoneName, TimeZoneInfo.DaylightName);
            break;
 
        case TIME_ZONE_ID_INVALID:
        default:
            LoadStringW(hApplet, IDS_TIMEZONEINVALID, TimeZoneName, 128);
            break;
    }
 
    wsprintfW(TimeZoneString, TimeZoneText, TimeZoneName);
    SendDlgItemMessageW(hwnd, IDC_TIMEZONE, WM_SETTEXT, 0, (LPARAM)TimeZoneString);
}

Referenced by DateTimePageProc().

SystemSetLocalTime()

BOOL SystemSetLocalTime

(

LPSYSTEMTIME

lpSystemTime

)

Definition at line 17 of file dateandtime.c.

{
    HANDLE hToken;
    DWORD PrevSize;
    TOKEN_PRIVILEGES priv, previouspriv;
    BOOL Ret = FALSE;
 
    /*
     * Enable the SeSystemtimePrivilege privilege
     */
 
    if (OpenProcessToken(GetCurrentProcess(),
                         TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY,
                         &hToken))
    {
        priv.PrivilegeCount = 1;
        priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
 
        if (LookupPrivilegeValueW(NULL,
                                  SE_SYSTEMTIME_NAME,
                                  &priv.Privileges[0].Luid))
        {
            if (AdjustTokenPrivileges(hToken,
                                      FALSE,
                                      &priv,
                                      sizeof(previouspriv),
                                      &previouspriv,
                                      &PrevSize) &&
                GetLastError() == ERROR_SUCCESS)
            {
                /*
                 * We successfully enabled it, we're permitted to change the time.
                 * Call SetLocalTime twice to ensure correct results.
                 */
                Ret = SetLocalTime(lpSystemTime) &&
                      SetLocalTime(lpSystemTime);
 
                /*
                 * For the sake of security, restore the previous status again
                 */
                if (previouspriv.PrivilegeCount > 0)
                {
                    AdjustTokenPrivileges(hToken,
                                          FALSE,
                                          &previouspriv,
                                          0,
                                          NULL,
                                          0);
                }
            }
        }
        CloseHandle(hToken);
    }
 
    return Ret;
}

Referenced by SetLocalSystemTime().

Variable Documentation

pOldWndProc

WNDPROC pOldWndProc = NULL

static

Definition at line 14 of file dateandtime.c.

Referenced by create_treeview_control(), DateTimePageProc(), and DTPProc().