dlls/comctl32/datetime.c

   1 /*
   2  * Date and time picker control
   3  *
   4  * Copyright 1998, 1999 Eric Kohl
   5  * Copyright 1999, 2000 Alex Priem <alexp@sci.kun.nl>
   6  * Copyright 2000 Chris Morgan <cmorgan@wpi.edu>
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  * NOTE
  23  *
  24  * This code was audited for completeness against the documented features
  25  * of Comctl32.dll version 6.0 on Oct. 20, 2004, by Dimitrie O. Paun.
  26  *
  27  * Unless otherwise noted, we believe this code to be complete, as per
  28  * the specification mentioned above.
  29  * If you discover missing features, or bugs, please note them below.
  30  *
  31  * TODO:
  32  *    -- DTS_APPCANPARSE
  33  *    -- DTS_SHORTDATECENTURYFORMAT
  34  *    -- DTN_CLOSEUP
  35  *    -- DTN_FORMAT
  36  *    -- DTN_FORMATQUERY
  37  *    -- DTN_USERSTRING
  38  *    -- DTN_WMKEYDOWN
  39  *    -- FORMATCALLBACK
  40  */
  41
  42 #include <math.h>
  43 #include <string.h>
  44 #include <stdarg.h>
  45 #include <stdio.h>
  46 #include <limits.h>
  47
  48 #include "windef.h"
  49 #include "winbase.h"
  50 #include "wingdi.h"
  51 #include "winuser.h"
  52 #include "winnls.h"
  53 #include "commctrl.h"
  54 #include "comctl32.h"
  55 #include "wine/debug.h"
  56 #include "wine/unicode.h"
  57
  58 WINE_DEFAULT_DEBUG_CHANNEL(datetime);
  59
  60 typedef struct
  61 {
  62     HWND hwndSelf;
  63     HWND hMonthCal;
  64     HWND hwndNotify;
  65     HWND hUpdown;
  66     DWORD dwStyle;
  67     SYSTEMTIME date;
  68     BOOL dateValid;
  69     HWND hwndCheckbut;
  70     RECT rcClient; /* rect around the edge of the window */
  71     RECT rcDraw; /* rect inside of the border */
  72     RECT checkbox;  /* checkbox allowing the control to be enabled/disabled */
  73     RECT calbutton; /* button that toggles the dropdown of the monthcal control */
  74     BOOL bCalDepressed; /* TRUE = cal button is depressed */
  75     int  select;
  76     HFONT hFont;
  77     int nrFieldsAllocated;
  78     int nrFields;
  79     int haveFocus;
  80     int *fieldspec;
  81     RECT *fieldRect;
  82     int  *buflen;
  83     WCHAR textbuf[256];
  84     POINT monthcal_pos;
  85 } DATETIME_INFO, *LPDATETIME_INFO;
  86
  87 /* in monthcal.c */
  88 extern int MONTHCAL_MonthLength(int month, int year);
  89
  90 /* this list of defines is closely related to `allowedformatchars' defined
  91  * in datetime.c; the high nibble indicates the `base type' of the format
  92  * specifier.
  93  * Do not change without first reading DATETIME_UseFormat.
  94  *
  95  */
  96
  97 #define DT_END_FORMAT      0
  98 #define ONEDIGITDAY     0x01
  99 #define TWODIGITDAY     0x02
 100 #define THREECHARDAY    0x03
 101 #define FULLDAY         0x04
 102 #define ONEDIGIT12HOUR  0x11
 103 #define TWODIGIT12HOUR  0x12
 104 #define ONEDIGIT24HOUR  0x21
 105 #define TWODIGIT24HOUR  0x22
 106 #define ONEDIGITMINUTE  0x31
 107 #define TWODIGITMINUTE  0x32
 108 #define ONEDIGITMONTH   0x41
 109 #define TWODIGITMONTH   0x42
 110 #define THREECHARMONTH  0x43
 111 #define FULLMONTH       0x44
 112 #define ONEDIGITSECOND  0x51
 113 #define TWODIGITSECOND  0x52
 114 #define ONELETTERAMPM   0x61
 115 #define TWOLETTERAMPM   0x62
 116 #define ONEDIGITYEAR    0x71
 117 #define TWODIGITYEAR    0x72
 118 #define INVALIDFULLYEAR 0x73      /* FIXME - yyy is not valid - we'll treat it as yyyy */
 119 #define FULLYEAR        0x74
 120 #define FORMATCALLBACK  0x81      /* -> maximum of 0x80 callbacks possible */
 121 #define FORMATCALLMASK  0x80
 122 #define DT_STRING       0x0100
 123
 124 #define DTHT_DATEFIELD  0xff      /* for hit-testing */
 125
 126 #define DTHT_NONE     0
 127 #define DTHT_CHECKBOX 0x200     /* these should end at '00' , to make */
 128 #define DTHT_MCPOPUP  0x300     /* & DTHT_DATEFIELD 0 when DATETIME_KeyDown */
 129 #define DTHT_GOTFOCUS 0x400     /* tests for date-fields */
 130
 131 static BOOL DATETIME_SendSimpleNotify (DATETIME_INFO *infoPtr, UINT code);
 132 static BOOL DATETIME_SendDateTimeChangeNotify (DATETIME_INFO *infoPtr);
 133 extern void MONTHCAL_CopyTime(const SYSTEMTIME *from, SYSTEMTIME *to);
 134 static const WCHAR allowedformatchars[] = {'d', 'h', 'H', 'm', 'M', 's', 't', 'y', 'X', '\'', 0};
 135 static const int maxrepetition [] = {4,2,2,2,4,2,2,4,-1,-1};
 136
 137
 138 static DWORD
 139 DATETIME_GetSystemTime (DATETIME_INFO *infoPtr, SYSTEMTIME *lprgSysTimeArray)
 140 {
 141     if (!lprgSysTimeArray) return GDT_NONE;
 142
 143     if ((infoPtr->dwStyle & DTS_SHOWNONE) &&
 144         (SendMessageW (infoPtr->hwndCheckbut, BM_GETCHECK, 0, 0) == BST_UNCHECKED))
 145         return GDT_NONE;
 146
 147     MONTHCAL_CopyTime (&infoPtr->date, lprgSysTimeArray);
 148
 149     return GDT_VALID;
 150 }
 151
 152
 153 static BOOL
 154 DATETIME_SetSystemTime (DATETIME_INFO *infoPtr, DWORD flag, SYSTEMTIME *lprgSysTimeArray)
 155 {
 156     if (!lprgSysTimeArray) return 0;
 157
 158     TRACE("%04d/%02d/%02d %02d:%02d:%02d\n",
 159           lprgSysTimeArray->wYear, lprgSysTimeArray->wMonth, lprgSysTimeArray->wDay,
 160           lprgSysTimeArray->wHour, lprgSysTimeArray->wMinute, lprgSysTimeArray->wSecond);
 161
 162     if (flag == GDT_VALID) {
 163         infoPtr->dateValid = TRUE;
 164         MONTHCAL_CopyTime (lprgSysTimeArray, &infoPtr->date);
 165         SendMessageW (infoPtr->hMonthCal, MCM_SETCURSEL, 0, (LPARAM)(&infoPtr->date));
 166         SendMessageW (infoPtr->hwndCheckbut, BM_SETCHECK, BST_CHECKED, 0);
 167     } else if (flag == GDT_NONE) {
 168         infoPtr->dateValid = FALSE;
 169         SendMessageW (infoPtr->hwndCheckbut, BM_SETCHECK, BST_UNCHECKED, 0);
 170     }
 171
 172     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 173     return TRUE;
 174 }
 175
 176
 177 /***
 178  * Split up a formattxt in actions.
 179  * See ms documentation for the meaning of the letter codes/'specifiers'.
 180  *
 181  * Notes:
 182  * *'dddddd' is handled as 'dddd' plus 'dd'.
 183  * *unrecognized formats are strings (here given the type DT_STRING;
 184  * start of the string is encoded in lower bits of DT_STRING.
 185  * Therefore, 'string' ends finally up as '<show seconds>tring'.
 186  *
 187  */
 188 static void
 189 DATETIME_UseFormat (DATETIME_INFO *infoPtr, LPCWSTR formattxt)
 190 {
 191     unsigned int i;
 192     int j, k, len;
 193     int *nrFields = &infoPtr->nrFields;
 194
 195     *nrFields = 0;
 196     infoPtr->fieldspec[*nrFields] = 0;
 197     len = strlenW(allowedformatchars);
 198     k = 0;
 199
 200     for (i = 0; formattxt[i]; i++)  {
 201         TRACE ("\n%d %c:", i, formattxt[i]);
 202         for (j = 0; j < len; j++) {
 203             if (allowedformatchars[j]==formattxt[i]) {
 204                 TRACE ("%c[%d,%x]", allowedformatchars[j], *nrFields, infoPtr->fieldspec[*nrFields]);
 205                 if ((*nrFields==0) && (infoPtr->fieldspec[*nrFields]==0)) {
 206                     infoPtr->fieldspec[*nrFields] = (j<<4) + 1;
 207                     break;
 208                 }
 209                 if (infoPtr->fieldspec[*nrFields] >> 4 != j) {
 210                     (*nrFields)++;
 211                     infoPtr->fieldspec[*nrFields] = (j<<4) + 1;
 212                     break;
 213                 }
 214                 if ((infoPtr->fieldspec[*nrFields] & 0x0f) == maxrepetition[j]) {
 215                     (*nrFields)++;
 216                     infoPtr->fieldspec[*nrFields] = (j<<4) + 1;
 217                     break;
 218                 }
 219                 infoPtr->fieldspec[*nrFields]++;
 220                 break;
 221             }   /* if allowedformatchar */
 222         } /* for j */
 223
 224         /* char is not a specifier: handle char like a string */
 225         if (j == len) {
 226             if ((*nrFields==0) && (infoPtr->fieldspec[*nrFields]==0)) {
 227                 infoPtr->fieldspec[*nrFields] = DT_STRING + k;
 228                 infoPtr->buflen[*nrFields] = 0;
 229             } else if ((infoPtr->fieldspec[*nrFields] & DT_STRING) != DT_STRING)  {
 230                 (*nrFields)++;
 231                 infoPtr->fieldspec[*nrFields] = DT_STRING + k;
 232                 infoPtr->buflen[*nrFields] = 0;
 233             }
 234             infoPtr->textbuf[k] = formattxt[i];
 235             k++;
 236             infoPtr->buflen[*nrFields]++;
 237         }   /* if j=len */
 238
 239         if (*nrFields == infoPtr->nrFieldsAllocated) {
 240             FIXME ("out of memory; should reallocate. crash ahead.\n");
 241         }
 242     } /* for i */
 243
 244     TRACE("\n");
 245
 246     if (infoPtr->fieldspec[*nrFields] != 0) (*nrFields)++;
 247 }
 248
 249
 250 static BOOL
 251 DATETIME_SetFormatW (DATETIME_INFO *infoPtr, LPCWSTR lpszFormat)
 252 {
 253     if (!lpszFormat) {
 254         WCHAR format_buf[80];
 255         DWORD format_item;
 256
 257         if (infoPtr->dwStyle & DTS_LONGDATEFORMAT)
 258             format_item = LOCALE_SLONGDATE;
 259         else if (infoPtr->dwStyle & DTS_TIMEFORMAT)
 260             format_item = LOCALE_STIMEFORMAT;
 261         else /* DTS_SHORTDATEFORMAT */
 262             format_item = LOCALE_SSHORTDATE;
 263         GetLocaleInfoW( GetSystemDefaultLCID(), format_item, format_buf, sizeof(format_buf)/sizeof(format_buf[0]));
 264         lpszFormat = format_buf;
 265     }
 266
 267     DATETIME_UseFormat (infoPtr, lpszFormat);
 268
 269     return infoPtr->nrFields;
 270 }
 271
 272
 273 static BOOL
 274 DATETIME_SetFormatA (DATETIME_INFO *infoPtr, LPCSTR lpszFormat)
 275 {
 276     if (lpszFormat) {
 277         BOOL retval;
 278         INT len = MultiByteToWideChar(CP_ACP, 0, lpszFormat, -1, NULL, 0);
 279         LPWSTR wstr = Alloc(len * sizeof(WCHAR));
 280         if (wstr) MultiByteToWideChar(CP_ACP, 0, lpszFormat, -1, wstr, len);
 281         retval = DATETIME_SetFormatW (infoPtr, wstr);
 282         Free (wstr);
 283         return retval;
 284     }
 285     else
 286         return DATETIME_SetFormatW (infoPtr, 0);
 287
 288 }
 289
 290
 291 static void
 292 DATETIME_ReturnTxt (DATETIME_INFO *infoPtr, int count, LPWSTR result, int resultSize)
 293 {
 294     static const WCHAR fmt_dW[] = { '%', 'd', 0 };
 295     static const WCHAR fmt__2dW[] = { '%', '.', '2', 'd', 0 };
 296     static const WCHAR fmt__3sW[] = { '%', '.', '3', 's', 0 };
 297     SYSTEMTIME date = infoPtr->date;
 298     int spec;
 299     WCHAR buffer[80];
 300
 301     *result=0;
 302     TRACE ("%d,%d\n", infoPtr->nrFields, count);
 303     if (count>infoPtr->nrFields || count < 0) {
 304         WARN ("buffer overrun, have %d want %d\n", infoPtr->nrFields, count);
 305         return;
 306     }
 307
 308     if (!infoPtr->fieldspec) return;
 309
 310     spec = infoPtr->fieldspec[count];
 311     if (spec & DT_STRING) {
 312         int txtlen = infoPtr->buflen[count];
 313
 314         if (txtlen > resultSize)
 315             txtlen = resultSize - 1;
 316         memcpy (result, infoPtr->textbuf + (spec &~ DT_STRING), txtlen * sizeof(WCHAR));
 317         result[txtlen] = 0;
 318         TRACE ("arg%d=%x->[%s]\n", count, infoPtr->fieldspec[count], debugstr_w(result));
 319         return;
 320     }
 321
 322
 323     switch (spec) {
 324         case DT_END_FORMAT:
 325             *result = 0;
 326             break;
 327         case ONEDIGITDAY:
 328             wsprintfW (result, fmt_dW, date.wDay);
 329             break;
 330         case TWODIGITDAY:
 331             wsprintfW (result, fmt__2dW, date.wDay);
 332             break;
 333         case THREECHARDAY:
 334             GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_SABBREVDAYNAME1+(date.wDayOfWeek+6)%7, result, 4);
 335             /*wsprintfW (result,"%.3s",days[date.wDayOfWeek]);*/
 336             break;
 337         case FULLDAY:
 338             GetLocaleInfoW(LOCALE_USER_DEFAULT, LOCALE_SDAYNAME1+(date.wDayOfWeek+6)%7, result, resultSize);
 339             break;
 340         case ONEDIGIT12HOUR:
 341             wsprintfW (result, fmt_dW, date.wHour - (date.wHour > 12 ? 12 : 0));
 342             break;
 343         case TWODIGIT12HOUR:
 344             wsprintfW (result, fmt__2dW, date.wHour - (date.wHour > 12 ? 12 : 0));
 345             break;
 346         case ONEDIGIT24HOUR:
 347             wsprintfW (result, fmt_dW, date.wHour);
 348             break;
 349         case TWODIGIT24HOUR:
 350             wsprintfW (result, fmt__2dW, date.wHour);
 351             break;
 352         case ONEDIGITSECOND:
 353             wsprintfW (result, fmt_dW, date.wSecond);
 354             break;
 355         case TWODIGITSECOND:
 356             wsprintfW (result, fmt__2dW, date.wSecond);
 357             break;
 358         case ONEDIGITMINUTE:
 359             wsprintfW (result, fmt_dW, date.wMinute);
 360             break;
 361         case TWODIGITMINUTE:
 362             wsprintfW (result, fmt__2dW, date.wMinute);
 363             break;
 364         case ONEDIGITMONTH:
 365             wsprintfW (result, fmt_dW, date.wMonth);
 366             break;
 367         case TWODIGITMONTH:
 368             wsprintfW (result, fmt__2dW, date.wMonth);
 369             break;
 370         case THREECHARMONTH:
 371             GetLocaleInfoW(GetSystemDefaultLCID(), LOCALE_SMONTHNAME1+date.wMonth -1,
 372                            buffer, sizeof(buffer)/sizeof(buffer[0]));
 373             wsprintfW (result, fmt__3sW, buffer);
 374             break;
 375         case FULLMONTH:
 376             GetLocaleInfoW(GetSystemDefaultLCID(),LOCALE_SMONTHNAME1+date.wMonth -1,
 377                            result, resultSize);
 378             break;
 379         case ONELETTERAMPM:
 380             result[0] = (date.wHour < 12 ? 'A' : 'P');
 381             result[1] = 0;
 382             break;
 383         case TWOLETTERAMPM:
 384             result[0] = (date.wHour < 12 ? 'A' : 'P');
 385             result[1] = 'M';
 386             result[2] = 0;
 387             break;
 388         case FORMATCALLBACK:
 389             FIXME ("Not implemented\n");
 390             result[0] = 'x';
 391             result[1] = 0;
 392             break;
 393         case ONEDIGITYEAR:
 394             wsprintfW (result, fmt_dW, date.wYear-10* (int) floor(date.wYear/10));
 395             break;
 396         case TWODIGITYEAR:
 397             wsprintfW (result, fmt__2dW, date.wYear-100* (int) floor(date.wYear/100));
 398             break;
 399         case INVALIDFULLYEAR:
 400         case FULLYEAR:
 401             wsprintfW (result, fmt_dW, date.wYear);
 402             break;
 403     }
 404
 405     TRACE ("arg%d=%x->[%s]\n", count, infoPtr->fieldspec[count], debugstr_w(result));
 406 }
 407
 408 static int wrap(int val, int delta, int minVal, int maxVal)
 409 {
 410     val += delta;
 411     if (delta == INT_MIN || val < minVal) return maxVal;
 412     if (delta == INT_MAX || val > maxVal) return minVal;
 413     return val;
 414 }
 415
 416 static void
 417 DATETIME_IncreaseField (DATETIME_INFO *infoPtr, int number, int delta)
 418 {
 419     SYSTEMTIME *date = &infoPtr->date;
 420
 421     TRACE ("%d\n", number);
 422     if ((number > infoPtr->nrFields) || (number < 0)) return;
 423
 424     if ((infoPtr->fieldspec[number] & DTHT_DATEFIELD) == 0) return;
 425
 426     switch (infoPtr->fieldspec[number]) {
 427         case ONEDIGITYEAR:
 428         case TWODIGITYEAR:
 429         case FULLYEAR:
 430             date->wYear = wrap(date->wYear, delta, 1752, 9999);
 431             break;
 432         case ONEDIGITMONTH:
 433         case TWODIGITMONTH:
 434         case THREECHARMONTH:
 435         case FULLMONTH:
 436             date->wMonth = wrap(date->wMonth, delta, 1, 12);
 437             delta = 0;
 438             /* fall through */
 439         case ONEDIGITDAY:
 440         case TWODIGITDAY:
 441         case THREECHARDAY:
 442         case FULLDAY:
 443             date->wDay = wrap(date->wDay, delta, 1, MONTHCAL_MonthLength(date->wMonth, date->wYear));
 444             break;
 445         case ONELETTERAMPM:
 446         case TWOLETTERAMPM:
 447             delta *= 12;
 448             /* fall through */
 449         case ONEDIGIT12HOUR:
 450         case TWODIGIT12HOUR:
 451         case ONEDIGIT24HOUR:
 452         case TWODIGIT24HOUR:
 453             date->wHour = wrap(date->wHour, delta, 0, 23);
 454             break;
 455         case ONEDIGITMINUTE:
 456         case TWODIGITMINUTE:
 457             date->wMinute = wrap(date->wMinute, delta, 0, 59);
 458             break;
 459         case ONEDIGITSECOND:
 460         case TWODIGITSECOND:
 461             date->wSecond = wrap(date->wSecond, delta, 0, 59);
 462             break;
 463         case FORMATCALLBACK:
 464             FIXME ("Not implemented\n");
 465             break;
 466     }
 467
 468     /* FYI: On 1752/9/14 the calendar changed and England and the
 469      * American colonies changed to the Gregorian calendar. This change
 470      * involved having September 14th follow September 2nd. So no date
 471      * algorithm works before that date.
 472      */
 473     if (10000 * date->wYear + 100 * date->wMonth + date->wDay < 17520914) {
 474         date->wYear = 1752;
 475         date->wMonth = 9;
 476         date->wDay = 14;
 477         date->wSecond = 0;
 478         date->wMinute = 0;
 479         date->wHour = 0;
 480     }
 481 }
 482
 483
 484 static void
 485 DATETIME_Refresh (DATETIME_INFO *infoPtr, HDC hdc)
 486 {
 487     int i,prevright;
 488     RECT *field;
 489     RECT *rcDraw = &infoPtr->rcDraw;
 490     RECT *calbutton = &infoPtr->calbutton;
 491     RECT *checkbox = &infoPtr->checkbox;
 492     SIZE size;
 493     COLORREF oldTextColor;
 494
 495     /* draw control edge */
 496     TRACE("\n");
 497
 498     if (infoPtr->dateValid) {
 499         HFONT oldFont = SelectObject (hdc, infoPtr->hFont);
 500         INT oldBkMode = SetBkMode (hdc, TRANSPARENT);
 501         WCHAR txt[80];
 502
 503         DATETIME_ReturnTxt (infoPtr, 0, txt, sizeof(txt)/sizeof(txt[0]));
 504         GetTextExtentPoint32W (hdc, txt, strlenW(txt), &size);
 505         rcDraw->bottom = size.cy + 2;
 506
 507         prevright = checkbox->right = ((infoPtr->dwStyle & DTS_SHOWNONE) ? 18 : 2);
 508
 509         for (i = 0; i < infoPtr->nrFields; i++) {
 510             DATETIME_ReturnTxt (infoPtr, i, txt, sizeof(txt)/sizeof(txt[0]));
 511             GetTextExtentPoint32W (hdc, txt, strlenW(txt), &size);
 512             field = &infoPtr->fieldRect[i];
 513             field->left  = prevright;
 514             field->right = prevright+size.cx;
 515             field->top   = rcDraw->top;
 516             field->bottom = rcDraw->bottom;
 517             prevright = field->right;
 518
 519             if (infoPtr->dwStyle & WS_DISABLED)
 520                 oldTextColor = SetTextColor (hdc, comctl32_color.clrGrayText);
 521             else if ((infoPtr->haveFocus) && (i == infoPtr->select)) {
 522                 /* fill if focussed */
 523                 HBRUSH hbr = CreateSolidBrush (comctl32_color.clrActiveCaption);
 524                 FillRect(hdc, field, hbr);
 525                 DeleteObject (hbr);
 526                 oldTextColor = SetTextColor (hdc, comctl32_color.clrWindow);
 527             }
 528             else
 529                 oldTextColor = SetTextColor (hdc, comctl32_color.clrWindowText);
 530
 531             /* draw the date text using the colour set above */
 532             DrawTextW (hdc, txt, strlenW(txt), field, DT_RIGHT | DT_VCENTER | DT_SINGLELINE);
 533             SetTextColor (hdc, oldTextColor);
 534         }
 535         SetBkMode (hdc, oldBkMode);
 536         SelectObject (hdc, oldFont);
 537     }
 538
 539     if (!(infoPtr->dwStyle & DTS_UPDOWN)) {
 540         DrawFrameControl(hdc, calbutton, DFC_SCROLL,
 541                          DFCS_SCROLLDOWN | (infoPtr->bCalDepressed ? DFCS_PUSHED : 0) |
 542                          (infoPtr->dwStyle & WS_DISABLED ? DFCS_INACTIVE : 0) );
 543     }
 544 }
 545
 546
 547 static INT
 548 DATETIME_HitTest (DATETIME_INFO *infoPtr, POINT pt)
 549 {
 550     int i;
 551
 552     TRACE ("%ld, %ld\n", pt.x, pt.y);
 553
 554     if (PtInRect (&infoPtr->calbutton, pt)) return DTHT_MCPOPUP;
 555     if (PtInRect (&infoPtr->checkbox, pt)) return DTHT_CHECKBOX;
 556
 557     for (i=0; i < infoPtr->nrFields; i++) {
 558         if (PtInRect (&infoPtr->fieldRect[i], pt)) return i;
 559     }
 560
 561     return DTHT_NONE;
 562 }
 563
 564
 565 static LRESULT
 566 DATETIME_LButtonDown (DATETIME_INFO *infoPtr, WORD wKey, INT x, INT y)
 567 {
 568     POINT pt;
 569     int old, new;
 570
 571     pt.x = x;
 572     pt.y = y;
 573     old = infoPtr->select;
 574     new = DATETIME_HitTest (infoPtr, pt);
 575
 576     /* FIXME: might be conditions where we don't want to update infoPtr->select */
 577     infoPtr->select = new;
 578
 579     SetFocus(infoPtr->hwndSelf);
 580
 581     if (infoPtr->select == DTHT_MCPOPUP) {
 582         RECT rcMonthCal;
 583         SendMessageW(infoPtr->hMonthCal, MCM_GETMINREQRECT, 0, (LPARAM)&rcMonthCal);
 584
 585         /* FIXME: button actually is only depressed during dropdown of the */
 586         /* calendar control and when the mouse is over the button window */
 587         infoPtr->bCalDepressed = TRUE;
 588
 589         /* recalculate the position of the monthcal popup */
 590         if(infoPtr->dwStyle & DTS_RIGHTALIGN)
 591             infoPtr->monthcal_pos.x = infoPtr->calbutton.left -
 592                 (rcMonthCal.right - rcMonthCal.left);
 593         else
 594             /* FIXME: this should be after the area reserved for the checkbox */
 595             infoPtr->monthcal_pos.x = infoPtr->rcDraw.left;
 596
 597         infoPtr->monthcal_pos.y = infoPtr->rcClient.bottom;
 598         ClientToScreen (infoPtr->hwndSelf, &(infoPtr->monthcal_pos));
 599         SetWindowPos(infoPtr->hMonthCal, 0, infoPtr->monthcal_pos.x,
 600             infoPtr->monthcal_pos.y, rcMonthCal.right - rcMonthCal.left,
 601             rcMonthCal.bottom - rcMonthCal.top, 0);
 602
 603         if(IsWindowVisible(infoPtr->hMonthCal)) {
 604             ShowWindow(infoPtr->hMonthCal, SW_HIDE);
 605         } else {
 606             SYSTEMTIME *lprgSysTimeArray = &infoPtr->date;
 607             TRACE("update calendar %04d/%02d/%02d\n",
 608             lprgSysTimeArray->wYear, lprgSysTimeArray->wMonth, lprgSysTimeArray->wDay);
 609             SendMessageW(infoPtr->hMonthCal, MCM_SETCURSEL, 0, (LPARAM)(&infoPtr->date));
 610             ShowWindow(infoPtr->hMonthCal, SW_SHOW);
 611         }
 612
 613         TRACE ("dt:%p mc:%p mc parent:%p, desktop:%p\n",
 614                infoPtr->hwndSelf, infoPtr->hMonthCal, infoPtr->hwndNotify, GetDesktopWindow ());
 615         DATETIME_SendSimpleNotify (infoPtr, DTN_DROPDOWN);
 616     }
 617
 618     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 619
 620     return 0;
 621 }
 622
 623
 624 static LRESULT
 625 DATETIME_LButtonUp (DATETIME_INFO *infoPtr, WORD wKey)
 626 {
 627     if(infoPtr->bCalDepressed) {
 628         infoPtr->bCalDepressed = FALSE;
 629         InvalidateRect(infoPtr->hwndSelf, &(infoPtr->calbutton), TRUE);
 630     }
 631
 632     return 0;
 633 }
 634
 635
 636 static LRESULT
 637 DATETIME_Paint (DATETIME_INFO *infoPtr, HDC hdc)
 638 {
 639     if (!hdc) {
 640         PAINTSTRUCT ps;
 641         hdc = BeginPaint (infoPtr->hwndSelf, &ps);
 642         DATETIME_Refresh (infoPtr, hdc);
 643         EndPaint (infoPtr->hwndSelf, &ps);
 644     } else {
 645         DATETIME_Refresh (infoPtr, hdc);
 646     }
 647     return 0;
 648 }
 649
 650
 651 static LRESULT
 652 DATETIME_Button_Command (DATETIME_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 653 {
 654     if( HIWORD(wParam) == BN_CLICKED) {
 655         DWORD state = SendMessageW((HWND)lParam, BM_GETCHECK, 0, 0);
 656         infoPtr->dateValid = (state == BST_CHECKED);
 657         InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 658     }
 659     return 0;
 660 }
 661
 662
 663
 664 static LRESULT
 665 DATETIME_Command (DATETIME_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 666 {
 667     TRACE("hwndbutton = %p\n", infoPtr->hwndCheckbut);
 668     if(infoPtr->hwndCheckbut == (HWND)lParam)
 669         return DATETIME_Button_Command(infoPtr, wParam, lParam);
 670     return 0;
 671 }
 672
 673
 674 static LRESULT
 675 DATETIME_Enable (DATETIME_INFO *infoPtr, BOOL bEnable)
 676 {
 677     TRACE("%p %s\n", infoPtr, bEnable ? "TRUE" : "FALSE");
 678     if (bEnable)
 679         infoPtr->dwStyle &= ~WS_DISABLED;
 680     else
 681         infoPtr->dwStyle |= WS_DISABLED;
 682     return 0;
 683 }
 684
 685
 686 static LRESULT
 687 DATETIME_EraseBackground (DATETIME_INFO *infoPtr, HDC hdc)
 688 {
 689     HBRUSH hBrush, hSolidBrush = NULL;
 690     RECT   rc;
 691
 692     if (infoPtr->dwStyle & WS_DISABLED)
 693         hBrush = hSolidBrush = CreateSolidBrush(comctl32_color.clrBtnFace);
 694     else
 695     {
 696         hBrush = (HBRUSH)SendMessageW(infoPtr->hwndNotify, WM_CTLCOLOREDIT,
 697                                       (WPARAM)hdc, (LPARAM)infoPtr->hwndSelf);
 698         if (!hBrush)
 699             hBrush = hSolidBrush = CreateSolidBrush(comctl32_color.clrWindow);
 700     }
 701
 702     GetClientRect (infoPtr->hwndSelf, &rc);
 703
 704     FillRect (hdc, &rc, hBrush);
 705
 706     if (hSolidBrush)
 707         DeleteObject(hSolidBrush);
 708
 709     return -1;
 710 }
 711
 712
 713 static LRESULT
 714 DATETIME_Notify (DATETIME_INFO *infoPtr, int idCtrl, LPNMHDR lpnmh)
 715 {
 716     TRACE ("Got notification %x from %p\n", lpnmh->code, lpnmh->hwndFrom);
 717     TRACE ("info: %p %p %p\n", infoPtr->hwndSelf, infoPtr->hMonthCal, infoPtr->hUpdown);
 718
 719     if (lpnmh->code == MCN_SELECT) {
 720         ShowWindow(infoPtr->hMonthCal, SW_HIDE);
 721         infoPtr->dateValid = TRUE;
 722         SendMessageW (infoPtr->hMonthCal, MCM_GETCURSEL, 0, (LPARAM)&infoPtr->date);
 723         TRACE("got from calendar %04d/%02d/%02d\n",
 724         infoPtr->date.wYear, infoPtr->date.wMonth, infoPtr->date.wDay);
 725         SendMessageW (infoPtr->hwndCheckbut, BM_SETCHECK, BST_CHECKED, 0);
 726         InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 727         DATETIME_SendDateTimeChangeNotify (infoPtr);
 728     }
 729     return 0;
 730 }
 731
 732
 733 static LRESULT
 734 DATETIME_KeyDown (DATETIME_INFO *infoPtr, DWORD vkCode, LPARAM flags)
 735 {
 736     int fieldNum = infoPtr->select & DTHT_DATEFIELD;
 737     int wrap = 0;
 738
 739     if (!(infoPtr->haveFocus)) return 0;
 740     if ((fieldNum==0) && (infoPtr->select)) return 0;
 741
 742     if (infoPtr->select & FORMATCALLMASK) {
 743         FIXME ("Callbacks not implemented yet\n");
 744     }
 745
 746     switch (vkCode) {
 747         case VK_ADD:
 748         case VK_UP:
 749             DATETIME_IncreaseField (infoPtr, fieldNum, 1);
 750             DATETIME_SendDateTimeChangeNotify (infoPtr);
 751             break;
 752         case VK_SUBTRACT:
 753         case VK_DOWN:
 754             DATETIME_IncreaseField (infoPtr, fieldNum, -1);
 755             DATETIME_SendDateTimeChangeNotify (infoPtr);
 756             break;
 757         case VK_HOME:
 758             DATETIME_IncreaseField (infoPtr, fieldNum, INT_MIN);
 759             DATETIME_SendDateTimeChangeNotify (infoPtr);
 760             break;
 761         case VK_END:
 762             DATETIME_IncreaseField (infoPtr, fieldNum, INT_MAX);
 763             DATETIME_SendDateTimeChangeNotify (infoPtr);
 764             break;
 765         case VK_LEFT:
 766             do {
 767                 if (infoPtr->select == 0) {
 768                     infoPtr->select = infoPtr->nrFields - 1;
 769                     wrap++;
 770                 } else {
 771                     infoPtr->select--;
 772                 }
 773             } while ((infoPtr->fieldspec[infoPtr->select] & DT_STRING) && (wrap<2));
 774             break;
 775         case VK_RIGHT:
 776             do {
 777                 infoPtr->select++;
 778                 if (infoPtr->select==infoPtr->nrFields) {
 779                     infoPtr->select = 0;
 780                     wrap++;
 781                 }
 782             } while ((infoPtr->fieldspec[infoPtr->select] & DT_STRING) && (wrap<2));
 783             break;
 784     }
 785
 786     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
 787
 788     return 0;
 789 }
 790
 791
 792 static LRESULT
 793 DATETIME_KillFocus (DATETIME_INFO *infoPtr, HWND lostFocus)
 794 {
 795     TRACE("lost focus to %p\n", lostFocus);
 796
 797     if (infoPtr->haveFocus) {
 798         DATETIME_SendSimpleNotify (infoPtr, NM_KILLFOCUS);
 799         infoPtr->haveFocus = 0;
 800     }
 801
 802     InvalidateRect (infoPtr->hwndSelf, NULL, TRUE);
 803
 804     return 0;
 805 }
 806
 807
 808 static LRESULT
 809 DATETIME_NCCreate (HWND hwnd, LPCREATESTRUCTW lpcs)
 810 {
 811     DWORD dwExStyle = GetWindowLongW(hwnd, GWL_EXSTYLE);
 812     /* force control to have client edge */
 813     dwExStyle |= WS_EX_CLIENTEDGE;
 814     SetWindowLongW(hwnd, GWL_EXSTYLE, dwExStyle);
 815
 816     return DefWindowProcW(hwnd, WM_NCCREATE, 0, (LPARAM)lpcs);
 817 }
 818
 819
 820 static LRESULT
 821 DATETIME_SetFocus (DATETIME_INFO *infoPtr, HWND lostFocus)
 822 {
 823     TRACE("got focus from %p\n", lostFocus);
 824
 825     if (infoPtr->haveFocus == 0) {
 826         DATETIME_SendSimpleNotify (infoPtr, NM_SETFOCUS);
 827         infoPtr->haveFocus = DTHT_GOTFOCUS;
 828     }
 829
 830     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
 831
 832     return 0;
 833 }
 834
 835
 836 static BOOL
 837 DATETIME_SendDateTimeChangeNotify (DATETIME_INFO *infoPtr)
 838 {
 839     NMDATETIMECHANGE dtdtc;
 840
 841     dtdtc.nmhdr.hwndFrom = infoPtr->hwndSelf;
 842     dtdtc.nmhdr.idFrom   = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
 843     dtdtc.nmhdr.code     = DTN_DATETIMECHANGE;
 844
 845     dtdtc.dwFlags = (infoPtr->dwStyle & DTS_SHOWNONE) ? GDT_NONE : GDT_VALID;
 846
 847     MONTHCAL_CopyTime (&infoPtr->date, &dtdtc.st);
 848     return (BOOL) SendMessageW (infoPtr->hwndNotify, WM_NOTIFY,
 849                                 (WPARAM)dtdtc.nmhdr.idFrom, (LPARAM)&dtdtc);
 850 }
 851
 852
 853 static BOOL
 854 DATETIME_SendSimpleNotify (DATETIME_INFO *infoPtr, UINT code)
 855 {
 856     NMHDR nmhdr;
 857
 858     TRACE("%x\n", code);
 859     nmhdr.hwndFrom = infoPtr->hwndSelf;
 860     nmhdr.idFrom   = GetWindowLongPtrW(infoPtr->hwndSelf, GWLP_ID);
 861     nmhdr.code     = code;
 862
 863     return (BOOL) SendMessageW (infoPtr->hwndNotify, WM_NOTIFY,
 864                                 (WPARAM)nmhdr.idFrom, (LPARAM)&nmhdr);
 865 }
 866
 867 static LRESULT
 868 DATETIME_Size (DATETIME_INFO *infoPtr, WORD flags, INT width, INT height)
 869 {
 870     /* set size */
 871     infoPtr->rcClient.bottom = height;
 872     infoPtr->rcClient.right = width;
 873
 874     TRACE("Height=%ld, Width=%ld\n", infoPtr->rcClient.bottom, infoPtr->rcClient.right);
 875
 876     infoPtr->rcDraw = infoPtr->rcClient;
 877
 878     /* set the size of the button that drops the calendar down */
 879     /* FIXME: account for style that allows button on left side */
 880     infoPtr->calbutton.top   = infoPtr->rcDraw.top;
 881     infoPtr->calbutton.bottom= infoPtr->rcDraw.bottom;
 882     infoPtr->calbutton.left  = infoPtr->rcDraw.right-15;
 883     infoPtr->calbutton.right = infoPtr->rcDraw.right;
 884
 885     /* set enable/disable button size for show none style being enabled */
 886     /* FIXME: these dimensions are completely incorrect */
 887     infoPtr->checkbox.top = infoPtr->rcDraw.top;
 888     infoPtr->checkbox.bottom = infoPtr->rcDraw.bottom;
 889     infoPtr->checkbox.left = infoPtr->rcDraw.left;
 890     infoPtr->checkbox.right = infoPtr->rcDraw.left + 10;
 891
 892     InvalidateRect(infoPtr->hwndSelf, NULL, FALSE);
 893
 894     return 0;
 895 }
 896
 897
 898 static LRESULT
 899 DATETIME_StyleChanged(DATETIME_INFO *infoPtr, WPARAM wStyleType, LPSTYLESTRUCT lpss)
 900 {
 901     static const WCHAR buttonW[] = { 'b', 'u', 't', 't', 'o', 'n', 0 };
 902
 903     TRACE("(styletype=%x, styleOld=0x%08lx, styleNew=0x%08lx)\n",
 904           wStyleType, lpss->styleOld, lpss->styleNew);
 905
 906     if (wStyleType != GWL_STYLE) return 0;
 907
 908     infoPtr->dwStyle = lpss->styleNew;
 909
 910     if ( !(lpss->styleOld & DTS_SHOWNONE) && (lpss->styleNew & DTS_SHOWNONE) ) {
 911         infoPtr->hwndCheckbut = CreateWindowExW (0, buttonW, 0, WS_CHILD | WS_VISIBLE | BS_AUTOCHECKBOX,
 912                                                  2, 2, 13, 13, infoPtr->hwndSelf, 0,
 913                                                 (HINSTANCE)GetWindowLongPtrW (infoPtr->hwndSelf, GWLP_HINSTANCE), 0);
 914         SendMessageW (infoPtr->hwndCheckbut, BM_SETCHECK, 1, 0);
 915     }
 916     if ( (lpss->styleOld & DTS_SHOWNONE) && !(lpss->styleNew & DTS_SHOWNONE) ) {
 917         DestroyWindow(infoPtr->hwndCheckbut);
 918         infoPtr->hwndCheckbut = 0;
 919     }
 920     if ( !(lpss->styleOld & DTS_UPDOWN) && (lpss->styleNew & DTS_UPDOWN) ) {
 921         infoPtr->hUpdown = CreateUpDownControl (WS_CHILD | WS_BORDER | WS_VISIBLE, 120, 1, 20, 20,
 922                                                 infoPtr->hwndSelf, 1, 0, 0, UD_MAXVAL, UD_MINVAL, 0);
 923     }
 924     if ( (lpss->styleOld & DTS_UPDOWN) && !(lpss->styleNew & DTS_UPDOWN) ) {
 925         DestroyWindow(infoPtr->hUpdown);
 926         infoPtr->hUpdown = 0;
 927     }
 928
 929     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 930     return 0;
 931 }
 932
 933
 934 static LRESULT
 935 DATETIME_Create (HWND hwnd, LPCREATESTRUCTW lpcs)
 936 {
 937     static const WCHAR SysMonthCal32W[] = { 'S', 'y', 's', 'M', 'o', 'n', 't', 'h', 'C', 'a', 'l', '3', '2', 0 };
 938     DATETIME_INFO *infoPtr = (DATETIME_INFO *)Alloc (sizeof(DATETIME_INFO));
 939     STYLESTRUCT ss = { 0, lpcs->style };
 940
 941     if (!infoPtr) return -1;
 942
 943     infoPtr->hwndSelf = hwnd;
 944     infoPtr->dwStyle = lpcs->style;
 945
 946     infoPtr->nrFieldsAllocated = 32;
 947     infoPtr->fieldspec = (int *) Alloc (infoPtr->nrFieldsAllocated * sizeof(int));
 948     infoPtr->fieldRect = (RECT *) Alloc (infoPtr->nrFieldsAllocated * sizeof(RECT));
 949     infoPtr->buflen = (int *) Alloc (infoPtr->nrFieldsAllocated * sizeof(int));
 950     infoPtr->hwndNotify = lpcs->hwndParent;
 951     infoPtr->select = -1; /* initially, nothing is selected */
 952
 953     DATETIME_StyleChanged(infoPtr, GWL_STYLE, &ss);
 954     DATETIME_SetFormatW (infoPtr, 0);
 955
 956     /* create the monthcal control */
 957     infoPtr->hMonthCal = CreateWindowExW (0, SysMonthCal32W, 0, WS_BORDER | WS_POPUP | WS_CLIPSIBLINGS,
 958                                           0, 0, 0, 0, infoPtr->hwndSelf, 0, 0, 0);
 959
 960     /* initialize info structure */
 961     GetSystemTime (&infoPtr->date);
 962     infoPtr->dateValid = TRUE;
 963     infoPtr->hFont = GetStockObject(DEFAULT_GUI_FONT);
 964
 965     SetWindowLongPtrW (hwnd, 0, (DWORD_PTR)infoPtr);
 966
 967     return 0;
 968 }
 969
 970
 971
 972 static LRESULT
 973 DATETIME_Destroy (DATETIME_INFO *infoPtr)
 974 {
 975     if (infoPtr->hwndCheckbut)
 976         DestroyWindow(infoPtr->hwndCheckbut);
 977     if (infoPtr->hUpdown)
 978         DestroyWindow(infoPtr->hUpdown);
 979     if (infoPtr->hMonthCal)
 980         DestroyWindow(infoPtr->hMonthCal);
 981     SetWindowLongPtrW( infoPtr->hwndSelf, 0, 0 ); /* clear infoPtr */
 982     Free (infoPtr);
 983     return 0;
 984 }
 985
 986
 987 static LRESULT WINAPI
 988 DATETIME_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 989 {
 990     DATETIME_INFO *infoPtr = ((DATETIME_INFO *)GetWindowLongPtrW (hwnd, 0));
 991     LRESULT ret;
 992
 993     TRACE ("%x, %x, %lx\n", uMsg, wParam, lParam);
 994
 995     if (!infoPtr && (uMsg != WM_CREATE) && (uMsg != WM_NCCREATE))
 996         return DefWindowProcW( hwnd, uMsg, wParam, lParam );
 997
 998     switch (uMsg) {
 999
1000     case DTM_GETSYSTEMTIME:
1001         return DATETIME_GetSystemTime (infoPtr, (SYSTEMTIME *) lParam);
1002
1003     case DTM_SETSYSTEMTIME:
1004         return DATETIME_SetSystemTime (infoPtr, wParam, (SYSTEMTIME *) lParam);
1005
1006     case DTM_GETRANGE:
1007         ret = SendMessageW (infoPtr->hMonthCal, MCM_GETRANGE, wParam, lParam);
1008         return ret ? ret : 1; /* bug emulation */
1009
1010     case DTM_SETRANGE:
1011         return SendMessageW (infoPtr->hMonthCal, MCM_SETRANGE, wParam, lParam);
1012
1013     case DTM_SETFORMATA:
1014         return DATETIME_SetFormatA (infoPtr, (LPCSTR)lParam);
1015
1016     case DTM_SETFORMATW:
1017         return DATETIME_SetFormatW (infoPtr, (LPCWSTR)lParam);
1018
1019     case DTM_GETMONTHCAL:
1020         return (LRESULT)infoPtr->hMonthCal;
1021
1022     case DTM_SETMCCOLOR:
1023         return SendMessageW (infoPtr->hMonthCal, MCM_SETCOLOR, wParam, lParam);
1024
1025     case DTM_GETMCCOLOR:
1026         return SendMessageW (infoPtr->hMonthCal, MCM_GETCOLOR, wParam, 0);
1027
1028     case DTM_SETMCFONT:
1029         return SendMessageW (infoPtr->hMonthCal, WM_SETFONT, wParam, lParam);
1030
1031     case DTM_GETMCFONT:
1032         return SendMessageW (infoPtr->hMonthCal, WM_GETFONT, wParam, lParam);
1033
1034     case WM_NOTIFY:
1035         return DATETIME_Notify (infoPtr, (int)wParam, (LPNMHDR)lParam);
1036
1037     case WM_ENABLE:
1038         return DATETIME_Enable (infoPtr, (BOOL)wParam);
1039
1040     case WM_ERASEBKGND:
1041         return DATETIME_EraseBackground (infoPtr, (HDC)wParam);
1042
1043     case WM_GETDLGCODE:
1044         return DLGC_WANTARROWS | DLGC_WANTCHARS;
1045
1046     case WM_PAINT:
1047         return DATETIME_Paint (infoPtr, (HDC)wParam);
1048
1049     case WM_KEYDOWN:
1050         return DATETIME_KeyDown (infoPtr, wParam, lParam);
1051
1052     case WM_KILLFOCUS:
1053         return DATETIME_KillFocus (infoPtr, (HWND)wParam);
1054
1055     case WM_NCCREATE:
1056         return DATETIME_NCCreate (hwnd, (LPCREATESTRUCTW)lParam);
1057
1058     case WM_SETFOCUS:
1059         return DATETIME_SetFocus (infoPtr, (HWND)wParam);
1060
1061     case WM_SIZE:
1062         return DATETIME_Size (infoPtr, wParam, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
1063
1064     case WM_LBUTTONDOWN:
1065         return DATETIME_LButtonDown (infoPtr, (WORD)wParam, (SHORT)LOWORD(lParam), (SHORT)HIWORD(lParam));
1066
1067     case WM_LBUTTONUP:
1068         return DATETIME_LButtonUp (infoPtr, (WORD)wParam);
1069
1070     case WM_CREATE:
1071         return DATETIME_Create (hwnd, (LPCREATESTRUCTW)lParam);
1072
1073     case WM_DESTROY:
1074         return DATETIME_Destroy (infoPtr);
1075
1076     case WM_COMMAND:
1077         return DATETIME_Command (infoPtr, wParam, lParam);
1078
1079     case WM_STYLECHANGED:
1080         return DATETIME_StyleChanged(infoPtr, wParam, (LPSTYLESTRUCT)lParam);
1081
1082     default:
1083         if ((uMsg >= WM_USER) && (uMsg < WM_APP))
1084                 ERR("unknown msg %04x wp=%08x lp=%08lx\n",
1085                      uMsg, wParam, lParam);
1086         return DefWindowProcW (hwnd, uMsg, wParam, lParam);
1087     }
1088 }
1089
1090
1091 void
1092 DATETIME_Register (void)
1093 {
1094     WNDCLASSW wndClass;
1095
1096     ZeroMemory (&wndClass, sizeof(WNDCLASSW));
1097     wndClass.style         = CS_GLOBALCLASS;
1098     wndClass.lpfnWndProc   = DATETIME_WindowProc;
1099     wndClass.cbClsExtra    = 0;
1100     wndClass.cbWndExtra    = sizeof(DATETIME_INFO *);
1101     wndClass.hCursor       = LoadCursorW (0, (LPCWSTR)IDC_ARROW);
1102     wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
1103     wndClass.lpszClassName = DATETIMEPICK_CLASSW;
1104
1105     RegisterClassW (&wndClass);
1106 }
1107
1108
1109 void
1110 DATETIME_Unregister (void)
1111 {
1112     UnregisterClassW (DATETIMEPICK_CLASSW, NULL);
1113 }