dlls/user32/dialog.c

   1 /*
   2  * Dialog functions
   3  *
   4  * Copyright 1993, 1994, 1996 Alexandre Julliard
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <ctype.h>
  25 #include <errno.h>
  26 #include <limits.h>
  27 #include <stdlib.h>
  28 #include <stdarg.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "wingdi.h"
  35 #include "winuser.h"
  36 #include "winnls.h"
  37 #include "wine/unicode.h"
  38 #include "controls.h"
  39 #include "win.h"
  40 #include "user_private.h"
  41 #include "wine/debug.h"
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(dialog);
  44
  45
  46   /* Dialog control information */
  47 typedef struct
  48 {
  49     DWORD      style;
  50     DWORD      exStyle;
  51     DWORD      helpId;
  52     INT16      x;
  53     INT16      y;
  54     INT16      cx;
  55     INT16      cy;
  56     UINT_PTR   id;
  57     LPCWSTR    className;
  58     LPCWSTR    windowName;
  59     LPCVOID    data;
  60 } DLG_CONTROL_INFO;
  61
  62   /* Dialog template */
  63 typedef struct
  64 {
  65     DWORD      style;
  66     DWORD      exStyle;
  67     DWORD      helpId;
  68     UINT16     nbItems;
  69     INT16      x;
  70     INT16      y;
  71     INT16      cx;
  72     INT16      cy;
  73     LPCWSTR    menuName;
  74     LPCWSTR    className;
  75     LPCWSTR    caption;
  76     INT16      pointSize;
  77     WORD       weight;
  78     BOOL       italic;
  79     LPCWSTR    faceName;
  80     BOOL       dialogEx;
  81 } DLG_TEMPLATE;
  82
  83   /* Radio button group */
  84 typedef struct
  85 {
  86     UINT firstID;
  87     UINT lastID;
  88     UINT checkID;
  89 } RADIOGROUP;
  90
  91
  92 /*********************************************************************
  93  * dialog class descriptor
  94  */
  95 const struct builtin_class_descr DIALOG_builtin_class =
  96 {
  97     (LPCWSTR)DIALOG_CLASS_ATOM, /* name */
  98     CS_SAVEBITS | CS_DBLCLKS, /* style  */
  99     WINPROC_DIALOG,     /* proc */
 100     DLGWINDOWEXTRA,     /* extra */
 101     IDC_ARROW,          /* cursor */
 102     0                   /* brush */
 103 };
 104
 105
 106 /***********************************************************************
 107  *           DIALOG_EnableOwner
 108  *
 109  * Helper function for modal dialogs to enable again the
 110  * owner of the dialog box.
 111  */
 112 static void DIALOG_EnableOwner( HWND hOwner )
 113 {
 114     /* Owner must be a top-level window */
 115     if (hOwner)
 116         hOwner = GetAncestor( hOwner, GA_ROOT );
 117     if (!hOwner) return;
 118     EnableWindow( hOwner, TRUE );
 119 }
 120
 121
 122 /***********************************************************************
 123  *           DIALOG_DisableOwner
 124  *
 125  * Helper function for modal dialogs to disable the
 126  * owner of the dialog box. Returns TRUE if owner was enabled.
 127  */
 128 static BOOL DIALOG_DisableOwner( HWND hOwner )
 129 {
 130     /* Owner must be a top-level window */
 131     if (hOwner)
 132         hOwner = GetAncestor( hOwner, GA_ROOT );
 133     if (!hOwner) return FALSE;
 134     if (IsWindowEnabled( hOwner ))
 135     {
 136         EnableWindow( hOwner, FALSE );
 137         return TRUE;
 138     }
 139     else
 140         return FALSE;
 141 }
 142
 143 /***********************************************************************
 144  *           DIALOG_GetControl32
 145  *
 146  * Return the class and text of the control pointed to by ptr,
 147  * fill the header structure and return a pointer to the next control.
 148  */
 149 static const WORD *DIALOG_GetControl32( const WORD *p, DLG_CONTROL_INFO *info,
 150                                         BOOL dialogEx )
 151 {
 152     if (dialogEx)
 153     {
 154         info->helpId  = GET_DWORD(p); p += 2;
 155         info->exStyle = GET_DWORD(p); p += 2;
 156         info->style   = GET_DWORD(p); p += 2;
 157     }
 158     else
 159     {
 160         info->helpId  = 0;
 161         info->style   = GET_DWORD(p); p += 2;
 162         info->exStyle = GET_DWORD(p); p += 2;
 163     }
 164     info->x       = GET_WORD(p); p++;
 165     info->y       = GET_WORD(p); p++;
 166     info->cx      = GET_WORD(p); p++;
 167     info->cy      = GET_WORD(p); p++;
 168
 169     if (dialogEx)
 170     {
 171         /* id is a DWORD for DIALOGEX */
 172         info->id = GET_DWORD(p);
 173         p += 2;
 174     }
 175     else
 176     {
 177         info->id = GET_WORD(p);
 178         p++;
 179     }
 180
 181     if (GET_WORD(p) == 0xffff)
 182     {
 183         static const WCHAR class_names[6][10] =
 184         {
 185             { 'B','u','t','t','o','n', },             /* 0x80 */
 186             { 'E','d','i','t', },                     /* 0x81 */
 187             { 'S','t','a','t','i','c', },             /* 0x82 */
 188             { 'L','i','s','t','B','o','x', },         /* 0x83 */
 189             { 'S','c','r','o','l','l','B','a','r', }, /* 0x84 */
 190             { 'C','o','m','b','o','B','o','x', }      /* 0x85 */
 191         };
 192         WORD id = GET_WORD(p+1);
 193         /* Windows treats dialog control class ids 0-5 same way as 0x80-0x85 */
 194         if ((id >= 0x80) && (id <= 0x85)) id -= 0x80;
 195         if (id <= 5)
 196             info->className = class_names[id];
 197         else
 198         {
 199             info->className = NULL;
 200             ERR("Unknown built-in class id %04x\n", id );
 201         }
 202         p += 2;
 203     }
 204     else
 205     {
 206         info->className = p;
 207         p += strlenW( info->className ) + 1;
 208     }
 209
 210     if (GET_WORD(p) == 0xffff)  /* Is it an integer id? */
 211     {
 212         info->windowName = MAKEINTRESOURCEW(GET_WORD(p + 1));
 213         p += 2;
 214     }
 215     else
 216     {
 217         info->windowName = p;
 218         p += strlenW( info->windowName ) + 1;
 219     }
 220
 221     TRACE("    %s %s %ld, %d, %d, %d, %d, %08x, %08x, %08x\n",
 222           debugstr_w( info->className ), debugstr_w( info->windowName ),
 223           info->id, info->x, info->y, info->cx, info->cy,
 224           info->style, info->exStyle, info->helpId );
 225
 226     if (GET_WORD(p))
 227     {
 228         if (TRACE_ON(dialog))
 229         {
 230             WORD i, count = GET_WORD(p) / sizeof(WORD);
 231             TRACE("  BEGIN\n");
 232             TRACE("    ");
 233             for (i = 0; i < count; i++) TRACE( "%04x,", GET_WORD(p+i+1) );
 234             TRACE("\n");
 235             TRACE("  END\n" );
 236         }
 237         info->data = p + 1;
 238         p += GET_WORD(p) / sizeof(WORD);
 239     }
 240     else info->data = NULL;
 241     p++;
 242
 243     /* Next control is on dword boundary */
 244     return (const WORD *)(((UINT_PTR)p + 3) & ~3);
 245 }
 246
 247
 248 /***********************************************************************
 249  *           DIALOG_CreateControls32
 250  *
 251  * Create the control windows for a dialog.
 252  */
 253 static BOOL DIALOG_CreateControls32( HWND hwnd, LPCSTR template, const DLG_TEMPLATE *dlgTemplate,
 254                                      HINSTANCE hInst, BOOL unicode )
 255 {
 256     DIALOGINFO *dlgInfo = DIALOG_get_info( hwnd, TRUE );
 257     DLG_CONTROL_INFO info;
 258     HWND hwndCtrl, hwndDefButton = 0;
 259     INT items = dlgTemplate->nbItems;
 260
 261     TRACE(" BEGIN\n" );
 262     while (items--)
 263     {
 264         template = (LPCSTR)DIALOG_GetControl32( (const WORD *)template, &info,
 265                                                 dlgTemplate->dialogEx );
 266         info.style &= ~WS_POPUP;
 267         info.style |= WS_CHILD;
 268
 269         if (info.style & WS_BORDER)
 270         {
 271             info.style &= ~WS_BORDER;
 272             info.exStyle |= WS_EX_CLIENTEDGE;
 273         }
 274         if (unicode)
 275         {
 276             hwndCtrl = CreateWindowExW( info.exStyle | WS_EX_NOPARENTNOTIFY,
 277                                         info.className, info.windowName,
 278                                         info.style | WS_CHILD,
 279                                         MulDiv(info.x, dlgInfo->xBaseUnit, 4),
 280                                         MulDiv(info.y, dlgInfo->yBaseUnit, 8),
 281                                         MulDiv(info.cx, dlgInfo->xBaseUnit, 4),
 282                                         MulDiv(info.cy, dlgInfo->yBaseUnit, 8),
 283                                         hwnd, (HMENU)info.id,
 284                                         hInst, (LPVOID)info.data );
 285         }
 286         else
 287         {
 288             LPCSTR class = (LPCSTR)info.className;
 289             LPCSTR caption = (LPCSTR)info.windowName;
 290             LPSTR class_tmp = NULL;
 291             LPSTR caption_tmp = NULL;
 292
 293             if (!IS_INTRESOURCE(class))
 294             {
 295                 DWORD len = WideCharToMultiByte( CP_ACP, 0, info.className, -1, NULL, 0, NULL, NULL );
 296                 class_tmp = HeapAlloc( GetProcessHeap(), 0, len );
 297                 WideCharToMultiByte( CP_ACP, 0, info.className, -1, class_tmp, len, NULL, NULL );
 298                 class = class_tmp;
 299             }
 300             if (!IS_INTRESOURCE(caption))
 301             {
 302                 DWORD len = WideCharToMultiByte( CP_ACP, 0, info.windowName, -1, NULL, 0, NULL, NULL );
 303                 caption_tmp = HeapAlloc( GetProcessHeap(), 0, len );
 304                 WideCharToMultiByte( CP_ACP, 0, info.windowName, -1, caption_tmp, len, NULL, NULL );
 305                 caption = caption_tmp;
 306             }
 307             hwndCtrl = CreateWindowExA( info.exStyle | WS_EX_NOPARENTNOTIFY,
 308                                         class, caption, info.style | WS_CHILD,
 309                                         MulDiv(info.x, dlgInfo->xBaseUnit, 4),
 310                                         MulDiv(info.y, dlgInfo->yBaseUnit, 8),
 311                                         MulDiv(info.cx, dlgInfo->xBaseUnit, 4),
 312                                         MulDiv(info.cy, dlgInfo->yBaseUnit, 8),
 313                                         hwnd, (HMENU)info.id,
 314                                         hInst, (LPVOID)info.data );
 315             HeapFree( GetProcessHeap(), 0, class_tmp );
 316             HeapFree( GetProcessHeap(), 0, caption_tmp );
 317         }
 318         if (!hwndCtrl)
 319         {
 320             WARN("control %s %s creation failed\n", debugstr_w(info.className),
 321                  debugstr_w(info.windowName));
 322             if (dlgTemplate->style & DS_NOFAILCREATE) continue;
 323             return FALSE;
 324         }
 325
 326             /* Send initialisation messages to the control */
 327         if (dlgInfo->hUserFont) SendMessageW( hwndCtrl, WM_SETFONT,
 328                                              (WPARAM)dlgInfo->hUserFont, 0 );
 329         if (SendMessageW(hwndCtrl, WM_GETDLGCODE, 0, 0) & DLGC_DEFPUSHBUTTON)
 330         {
 331               /* If there's already a default push-button, set it back */
 332               /* to normal and use this one instead. */
 333             if (hwndDefButton)
 334                 SendMessageW( hwndDefButton, BM_SETSTYLE, BS_PUSHBUTTON, FALSE );
 335             hwndDefButton = hwndCtrl;
 336             dlgInfo->idResult = GetWindowLongPtrA( hwndCtrl, GWLP_ID );
 337         }
 338     }
 339     TRACE(" END\n" );
 340     return TRUE;
 341 }
 342
 343
 344 /***********************************************************************
 345  *           DIALOG_ParseTemplate32
 346  *
 347  * Fill a DLG_TEMPLATE structure from the dialog template, and return
 348  * a pointer to the first control.
 349  */
 350 static LPCSTR DIALOG_ParseTemplate32( LPCSTR template, DLG_TEMPLATE * result )
 351 {
 352     const WORD *p = (const WORD *)template;
 353     WORD signature;
 354     WORD dlgver;
 355
 356     dlgver = GET_WORD(p); p++;
 357     signature = GET_WORD(p); p++;
 358
 359     if (dlgver == 1 && signature == 0xffff)  /* DIALOGEX resource */
 360     {
 361         result->dialogEx = TRUE;
 362         result->helpId   = GET_DWORD(p); p += 2;
 363         result->exStyle  = GET_DWORD(p); p += 2;
 364         result->style    = GET_DWORD(p); p += 2;
 365     }
 366     else
 367     {
 368         result->style = GET_DWORD(p - 2);
 369         result->dialogEx = FALSE;
 370         result->helpId   = 0;
 371         result->exStyle  = GET_DWORD(p); p += 2;
 372     }
 373     result->nbItems = GET_WORD(p); p++;
 374     result->x       = GET_WORD(p); p++;
 375     result->y       = GET_WORD(p); p++;
 376     result->cx      = GET_WORD(p); p++;
 377     result->cy      = GET_WORD(p); p++;
 378     TRACE("DIALOG%s %d, %d, %d, %d, %d\n",
 379            result->dialogEx ? "EX" : "", result->x, result->y,
 380            result->cx, result->cy, result->helpId );
 381     TRACE(" STYLE 0x%08x\n", result->style );
 382     TRACE(" EXSTYLE 0x%08x\n", result->exStyle );
 383
 384     /* Get the menu name */
 385
 386     switch(GET_WORD(p))
 387     {
 388     case 0x0000:
 389         result->menuName = NULL;
 390         p++;
 391         break;
 392     case 0xffff:
 393         result->menuName = MAKEINTRESOURCEW(GET_WORD( p + 1 ));
 394         p += 2;
 395         TRACE(" MENU %04x\n", LOWORD(result->menuName) );
 396         break;
 397     default:
 398         result->menuName = p;
 399         TRACE(" MENU %s\n", debugstr_w(result->menuName) );
 400         p += strlenW( result->menuName ) + 1;
 401         break;
 402     }
 403
 404     /* Get the class name */
 405
 406     switch(GET_WORD(p))
 407     {
 408     case 0x0000:
 409         result->className = (LPCWSTR)DIALOG_CLASS_ATOM;
 410         p++;
 411         break;
 412     case 0xffff:
 413         result->className = MAKEINTRESOURCEW(GET_WORD( p + 1 ));
 414         p += 2;
 415         TRACE(" CLASS %04x\n", LOWORD(result->className) );
 416         break;
 417     default:
 418         result->className = p;
 419         TRACE(" CLASS %s\n", debugstr_w( result->className ));
 420         p += strlenW( result->className ) + 1;
 421         break;
 422     }
 423
 424     /* Get the window caption */
 425
 426     result->caption = p;
 427     p += strlenW( result->caption ) + 1;
 428     TRACE(" CAPTION %s\n", debugstr_w( result->caption ) );
 429
 430     /* Get the font name */
 431
 432     result->pointSize = 0;
 433     result->faceName = NULL;
 434     result->weight = FW_DONTCARE;
 435     result->italic = FALSE;
 436
 437     if (result->style & DS_SETFONT)
 438     {
 439         result->pointSize = GET_WORD(p);
 440         p++;
 441
 442         /* If pointSize is 0x7fff, it means that we need to use the font
 443          * in NONCLIENTMETRICSW.lfMessageFont, and NOT read the weight,
 444          * italic, and facename from the dialog template.
 445          */
 446         if (result->pointSize == 0x7fff)
 447         {
 448             /* We could call SystemParametersInfo here, but then we'd have
 449              * to convert from pixel size to point size (which can be
 450              * imprecise).
 451              */
 452             TRACE(" FONT: Using message box font\n");
 453         }
 454         else
 455         {
 456             if (result->dialogEx)
 457             {
 458                 result->weight = GET_WORD(p); p++;
 459                 result->italic = LOBYTE(GET_WORD(p)); p++;
 460             }
 461             result->faceName = p;
 462             p += strlenW( result->faceName ) + 1;
 463
 464             TRACE(" FONT %d, %s, %d, %s\n",
 465                   result->pointSize, debugstr_w( result->faceName ),
 466                   result->weight, result->italic ? "TRUE" : "FALSE" );
 467         }
 468     }
 469
 470     /* First control is on dword boundary */
 471     return (LPCSTR)(((UINT_PTR)p + 3) & ~3);
 472 }
 473
 474
 475 /***********************************************************************
 476  *           DIALOG_CreateIndirect
 477  *       Creates a dialog box window
 478  *
 479  *       modal = TRUE if we are called from a modal dialog box.
 480  *       (it's more compatible to do it here, as under Windows the owner
 481  *       is never disabled if the dialog fails because of an invalid template)
 482  */
 483 static HWND DIALOG_CreateIndirect( HINSTANCE hInst, LPCVOID dlgTemplate,
 484                                    HWND owner, DLGPROC dlgProc, LPARAM param,
 485                                    BOOL unicode, BOOL modal )
 486 {
 487     HWND hwnd;
 488     RECT rect;
 489     POINT pos;
 490     SIZE size;
 491     DLG_TEMPLATE template;
 492     DIALOGINFO * dlgInfo = NULL;
 493     DWORD units = GetDialogBaseUnits();
 494     BOOL ownerEnabled = TRUE;
 495     HMENU hMenu = 0;
 496     HFONT hUserFont = 0;
 497     UINT flags = 0;
 498     UINT xBaseUnit = LOWORD(units);
 499     UINT yBaseUnit = HIWORD(units);
 500
 501       /* Parse dialog template */
 502
 503     if (!dlgTemplate) return 0;
 504     dlgTemplate = DIALOG_ParseTemplate32( dlgTemplate, &template );
 505
 506       /* Load menu */
 507
 508     if (template.menuName) hMenu = LoadMenuW( hInst, template.menuName );
 509
 510       /* Create custom font if needed */
 511
 512     if (template.style & DS_SETFONT)
 513     {
 514         HDC dc = GetDC(0);
 515
 516         if (template.pointSize == 0x7fff)
 517         {
 518             /* We get the message font from the non-client metrics */
 519             NONCLIENTMETRICSW ncMetrics;
 520
 521             ncMetrics.cbSize = sizeof(NONCLIENTMETRICSW);
 522             if (SystemParametersInfoW(SPI_GETNONCLIENTMETRICS,
 523                                       sizeof(NONCLIENTMETRICSW), &ncMetrics, 0))
 524             {
 525                 hUserFont = CreateFontIndirectW( &ncMetrics.lfMessageFont );
 526             }
 527         }
 528         else
 529         {
 530             /* We convert the size to pixels and then make it -ve.  This works
 531              * for both +ve and -ve template.pointSize */
 532             int pixels = MulDiv(template.pointSize, GetDeviceCaps(dc , LOGPIXELSY), 72);
 533             hUserFont = CreateFontW( -pixels, 0, 0, 0, template.weight,
 534                                               template.italic, FALSE, FALSE, DEFAULT_CHARSET, 0, 0,
 535                                               PROOF_QUALITY, FF_DONTCARE,
 536                                               template.faceName );
 537         }
 538
 539         if (hUserFont)
 540         {
 541             SIZE charSize;
 542             HFONT hOldFont = SelectObject( dc, hUserFont );
 543             charSize.cx = GdiGetCharDimensions( dc, NULL, &charSize.cy );
 544             if (charSize.cx)
 545             {
 546                 xBaseUnit = charSize.cx;
 547                 yBaseUnit = charSize.cy;
 548             }
 549             SelectObject( dc, hOldFont );
 550         }
 551         ReleaseDC(0, dc);
 552         TRACE("units = %d,%d\n", xBaseUnit, yBaseUnit );
 553     }
 554
 555     /* Create dialog main window */
 556
 557     rect.left = rect.top = 0;
 558     rect.right = MulDiv(template.cx, xBaseUnit, 4);
 559     rect.bottom =  MulDiv(template.cy, yBaseUnit, 8);
 560     if (template.style & WS_CHILD)
 561         template.style &= ~(WS_CAPTION|WS_SYSMENU);
 562     if (template.style & DS_MODALFRAME)
 563         template.exStyle |= WS_EX_DLGMODALFRAME;
 564     if (template.style & DS_CONTROL)
 565         template.exStyle |= WS_EX_CONTROLPARENT;
 566     AdjustWindowRectEx( &rect, template.style, (hMenu != 0), template.exStyle );
 567     pos.x = rect.left;
 568     pos.y = rect.top;
 569     size.cx = rect.right - rect.left;
 570     size.cy = rect.bottom - rect.top;
 571
 572     if (template.x == (SHORT)0x8000 /*CW_USEDEFAULT16*/)
 573     {
 574         pos.x = pos.y = CW_USEDEFAULT;
 575     }
 576     else
 577     {
 578         HMONITOR monitor = 0;
 579         MONITORINFO mon_info;
 580
 581         mon_info.cbSize = sizeof(mon_info);
 582         if (template.style & DS_CENTER)
 583         {
 584             monitor = MonitorFromWindow( owner ? owner : GetActiveWindow(), MONITOR_DEFAULTTOPRIMARY );
 585             GetMonitorInfoW( monitor, &mon_info );
 586             pos.x = (mon_info.rcWork.left + mon_info.rcWork.right - size.cx) / 2;
 587             pos.y = (mon_info.rcWork.top + mon_info.rcWork.bottom - size.cy) / 2;
 588         }
 589         else if (template.style & DS_CENTERMOUSE)
 590         {
 591             GetCursorPos( &pos );
 592             monitor = MonitorFromPoint( pos, MONITOR_DEFAULTTOPRIMARY );
 593             GetMonitorInfoW( monitor, &mon_info );
 594         }
 595         else
 596         {
 597             pos.x += MulDiv(template.x, xBaseUnit, 4);
 598             pos.y += MulDiv(template.y, yBaseUnit, 8);
 599             if (!(template.style & (WS_CHILD|DS_ABSALIGN))) ClientToScreen( owner, &pos );
 600         }
 601         if ( !(template.style & WS_CHILD) )
 602         {
 603             INT dX, dY;
 604
 605             /* try to fit it into the desktop */
 606
 607             if (!monitor)
 608             {
 609                 SetRect( &rect, pos.x, pos.y, pos.x + size.cx, pos.y + size.cy );
 610                 monitor = MonitorFromRect( &rect, MONITOR_DEFAULTTOPRIMARY );
 611                 GetMonitorInfoW( monitor, &mon_info );
 612             }
 613             if ((dX = pos.x + size.cx + GetSystemMetrics(SM_CXDLGFRAME) - mon_info.rcWork.right) > 0)
 614                 pos.x -= dX;
 615             if ((dY = pos.y + size.cy + GetSystemMetrics(SM_CYDLGFRAME) - mon_info.rcWork.bottom) > 0)
 616                 pos.y -= dY;
 617             if( pos.x < mon_info.rcWork.left ) pos.x = mon_info.rcWork.left;
 618             if( pos.y < mon_info.rcWork.top ) pos.y = mon_info.rcWork.top;
 619         }
 620     }
 621
 622     if (modal)
 623     {
 624         ownerEnabled = DIALOG_DisableOwner( owner );
 625         if (ownerEnabled) flags |= DF_OWNERENABLED;
 626     }
 627
 628     if (unicode)
 629     {
 630         hwnd = CreateWindowExW(template.exStyle, template.className, template.caption,
 631                                template.style & ~WS_VISIBLE, pos.x, pos.y, size.cx, size.cy,
 632                                owner, hMenu, hInst, NULL );
 633     }
 634     else
 635     {
 636         LPCSTR class = (LPCSTR)template.className;
 637         LPCSTR caption = (LPCSTR)template.caption;
 638         LPSTR class_tmp = NULL;
 639         LPSTR caption_tmp = NULL;
 640
 641         if (!IS_INTRESOURCE(class))
 642         {
 643             DWORD len = WideCharToMultiByte( CP_ACP, 0, template.className, -1, NULL, 0, NULL, NULL );
 644             class_tmp = HeapAlloc( GetProcessHeap(), 0, len );
 645             WideCharToMultiByte( CP_ACP, 0, template.className, -1, class_tmp, len, NULL, NULL );
 646             class = class_tmp;
 647         }
 648         if (!IS_INTRESOURCE(caption))
 649         {
 650             DWORD len = WideCharToMultiByte( CP_ACP, 0, template.caption, -1, NULL, 0, NULL, NULL );
 651             caption_tmp = HeapAlloc( GetProcessHeap(), 0, len );
 652             WideCharToMultiByte( CP_ACP, 0, template.caption, -1, caption_tmp, len, NULL, NULL );
 653             caption = caption_tmp;
 654         }
 655         hwnd = CreateWindowExA(template.exStyle, class, caption,
 656                                template.style & ~WS_VISIBLE, pos.x, pos.y, size.cx, size.cy,
 657                                owner, hMenu, hInst, NULL );
 658         HeapFree( GetProcessHeap(), 0, class_tmp );
 659         HeapFree( GetProcessHeap(), 0, caption_tmp );
 660     }
 661
 662     if (!hwnd)
 663     {
 664         if (hUserFont) DeleteObject( hUserFont );
 665         if (hMenu) DestroyMenu( hMenu );
 666         if (modal && (flags & DF_OWNERENABLED)) DIALOG_EnableOwner(owner);
 667         return 0;
 668     }
 669
 670     /* moved this from the top of the method to here as DIALOGINFO structure
 671     will be valid only after WM_CREATE message has been handled in DefDlgProc
 672     All the members of the structure get filled here using temp variables */
 673     dlgInfo = DIALOG_get_info( hwnd, TRUE );
 674     dlgInfo->hwndFocus   = 0;
 675     dlgInfo->hUserFont   = hUserFont;
 676     dlgInfo->hMenu       = hMenu;
 677     dlgInfo->xBaseUnit   = xBaseUnit;
 678     dlgInfo->yBaseUnit   = yBaseUnit;
 679     dlgInfo->flags       = flags;
 680
 681     if (template.helpId) SetWindowContextHelpId( hwnd, template.helpId );
 682
 683     if (unicode) SetWindowLongPtrW( hwnd, DWLP_DLGPROC, (ULONG_PTR)dlgProc );
 684     else SetWindowLongPtrA( hwnd, DWLP_DLGPROC, (ULONG_PTR)dlgProc );
 685
 686     if (dlgProc && dlgInfo->hUserFont)
 687         SendMessageW( hwnd, WM_SETFONT, (WPARAM)dlgInfo->hUserFont, 0 );
 688
 689     /* Create controls */
 690
 691     if (DIALOG_CreateControls32( hwnd, dlgTemplate, &template, hInst, unicode ))
 692     {
 693         /* Send initialisation messages and set focus */
 694
 695         if (dlgProc)
 696         {
 697             HWND focus = GetNextDlgTabItem( hwnd, 0, FALSE );
 698             if (SendMessageW( hwnd, WM_INITDIALOG, (WPARAM)focus, param ) && IsWindow( hwnd ) &&
 699                 ((~template.style & DS_CONTROL) || (template.style & WS_VISIBLE)))
 700             {
 701                 /* By returning TRUE, app has requested a default focus assignment.
 702                  * WM_INITDIALOG may have changed the tab order, so find the first
 703                  * tabstop control again. */
 704                 dlgInfo->hwndFocus = GetNextDlgTabItem( hwnd, 0, FALSE );
 705                 if( dlgInfo->hwndFocus )
 706                     SetFocus( dlgInfo->hwndFocus );
 707             }
 708         }
 709
 710         if (template.style & WS_VISIBLE && !(GetWindowLongW( hwnd, GWL_STYLE ) & WS_VISIBLE))
 711         {
 712            ShowWindow( hwnd, SW_SHOWNORMAL );   /* SW_SHOW doesn't always work */
 713         }
 714         return hwnd;
 715     }
 716     if (modal && ownerEnabled) DIALOG_EnableOwner(owner);
 717     if( IsWindow(hwnd) ) DestroyWindow( hwnd );
 718     return 0;
 719 }
 720
 721
 722 /***********************************************************************
 723  *              CreateDialogParamA (USER32.@)
 724  */
 725 HWND WINAPI CreateDialogParamA( HINSTANCE hInst, LPCSTR name, HWND owner,
 726                                 DLGPROC dlgProc, LPARAM param )
 727 {
 728     HRSRC hrsrc;
 729     LPCDLGTEMPLATEA ptr;
 730
 731     if (!(hrsrc = FindResourceA( hInst, name, (LPSTR)RT_DIALOG ))) return 0;
 732     if (!(ptr = LoadResource(hInst, hrsrc))) return 0;
 733     return CreateDialogIndirectParamA( hInst, ptr, owner, dlgProc, param );
 734 }
 735
 736
 737 /***********************************************************************
 738  *              CreateDialogParamW (USER32.@)
 739  */
 740 HWND WINAPI CreateDialogParamW( HINSTANCE hInst, LPCWSTR name, HWND owner,
 741                                 DLGPROC dlgProc, LPARAM param )
 742 {
 743     HRSRC hrsrc;
 744     LPCDLGTEMPLATEA ptr;
 745
 746     if (!(hrsrc = FindResourceW( hInst, name, (LPWSTR)RT_DIALOG ))) return 0;
 747     if (!(ptr = LoadResource(hInst, hrsrc))) return 0;
 748     return CreateDialogIndirectParamW( hInst, ptr, owner, dlgProc, param );
 749 }
 750
 751
 752 /***********************************************************************
 753  *              CreateDialogIndirectParamAorW (USER32.@)
 754  */
 755 HWND WINAPI CreateDialogIndirectParamAorW( HINSTANCE hInst, LPCVOID dlgTemplate,
 756                                            HWND owner, DLGPROC dlgProc, LPARAM param,
 757                                            DWORD flags )
 758 {
 759     return DIALOG_CreateIndirect( hInst, dlgTemplate, owner, dlgProc, param, !flags, FALSE );
 760 }
 761
 762 /***********************************************************************
 763  *              CreateDialogIndirectParamA (USER32.@)
 764  */
 765 HWND WINAPI CreateDialogIndirectParamA( HINSTANCE hInst, LPCDLGTEMPLATEA dlgTemplate,
 766                                         HWND owner, DLGPROC dlgProc, LPARAM param )
 767 {
 768     return CreateDialogIndirectParamAorW( hInst, dlgTemplate, owner, dlgProc, param, 2 );
 769 }
 770
 771 /***********************************************************************
 772  *              CreateDialogIndirectParamW (USER32.@)
 773  */
 774 HWND WINAPI CreateDialogIndirectParamW( HINSTANCE hInst, LPCDLGTEMPLATEW dlgTemplate,
 775                                         HWND owner, DLGPROC dlgProc, LPARAM param )
 776 {
 777     return CreateDialogIndirectParamAorW( hInst, dlgTemplate, owner, dlgProc, param, 0 );
 778 }
 779
 780
 781 /***********************************************************************
 782  *           DIALOG_DoDialogBox
 783  */
 784 INT DIALOG_DoDialogBox( HWND hwnd, HWND owner )
 785 {
 786     DIALOGINFO * dlgInfo;
 787     MSG msg;
 788     INT retval;
 789     HWND ownerMsg = GetAncestor( owner, GA_ROOT );
 790     BOOL bFirstEmpty;
 791
 792     if (!(dlgInfo = DIALOG_get_info( hwnd, FALSE ))) return -1;
 793
 794     bFirstEmpty = TRUE;
 795     if (!(dlgInfo->flags & DF_END)) /* was EndDialog called in WM_INITDIALOG ? */
 796     {
 797         for (;;)
 798         {
 799             if (!PeekMessageW( &msg, 0, 0, 0, PM_REMOVE ))
 800             {
 801                 if (bFirstEmpty)
 802                 {
 803                     /* ShowWindow the first time the queue goes empty */
 804                     ShowWindow( hwnd, SW_SHOWNORMAL );
 805                     bFirstEmpty = FALSE;
 806                 }
 807                 if (!(GetWindowLongW( hwnd, GWL_STYLE ) & DS_NOIDLEMSG))
 808                {
 809                     /* No message present -> send ENTERIDLE and wait */
 810                     SendMessageW( ownerMsg, WM_ENTERIDLE, MSGF_DIALOGBOX, (LPARAM)hwnd );
 811                 }
 812                 GetMessageW( &msg, 0, 0, 0 );
 813             }
 814
 815             if (msg.message == WM_QUIT)
 816             {
 817                 PostQuitMessage( msg.wParam );
 818                 if (!IsWindow( hwnd )) return 0;
 819                 break;
 820             }
 821             if (!IsWindow( hwnd )) return 0;
 822             if (!(dlgInfo->flags & DF_END) && !IsDialogMessageW( hwnd, &msg))
 823             {
 824                 TranslateMessage( &msg );
 825                 DispatchMessageW( &msg );
 826             }
 827             if (!IsWindow( hwnd )) return 0;
 828             if (dlgInfo->flags & DF_END) break;
 829
 830             if (bFirstEmpty && msg.message == WM_TIMER)
 831             {
 832                 ShowWindow( hwnd, SW_SHOWNORMAL );
 833                 bFirstEmpty = FALSE;
 834             }
 835         }
 836     }
 837     if (dlgInfo->flags & DF_OWNERENABLED) DIALOG_EnableOwner( owner );
 838     retval = dlgInfo->idResult;
 839     DestroyWindow( hwnd );
 840     return retval;
 841 }
 842
 843
 844 /***********************************************************************
 845  *              DialogBoxParamA (USER32.@)
 846  */
 847 INT_PTR WINAPI DialogBoxParamA( HINSTANCE hInst, LPCSTR name,
 848                                 HWND owner, DLGPROC dlgProc, LPARAM param )
 849 {
 850     HWND hwnd;
 851     HRSRC hrsrc;
 852     LPCDLGTEMPLATEA ptr;
 853
 854     if (!(hrsrc = FindResourceA( hInst, name, (LPSTR)RT_DIALOG ))) return -1;
 855     if (!(ptr = LoadResource(hInst, hrsrc))) return -1;
 856     hwnd = DIALOG_CreateIndirect( hInst, ptr, owner, dlgProc, param, FALSE, TRUE );
 857     if (hwnd) return DIALOG_DoDialogBox( hwnd, owner );
 858     return 0;
 859 }
 860
 861
 862 /***********************************************************************
 863  *              DialogBoxParamW (USER32.@)
 864  */
 865 INT_PTR WINAPI DialogBoxParamW( HINSTANCE hInst, LPCWSTR name,
 866                                 HWND owner, DLGPROC dlgProc, LPARAM param )
 867 {
 868     HWND hwnd;
 869     HRSRC hrsrc;
 870     LPCDLGTEMPLATEW ptr;
 871
 872     if (!(hrsrc = FindResourceW( hInst, name, (LPWSTR)RT_DIALOG ))) return -1;
 873     if (!(ptr = LoadResource(hInst, hrsrc))) return -1;
 874     hwnd = DIALOG_CreateIndirect( hInst, ptr, owner, dlgProc, param, TRUE, TRUE );
 875     if (hwnd) return DIALOG_DoDialogBox( hwnd, owner );
 876     return 0;
 877 }
 878
 879
 880 /***********************************************************************
 881  *              DialogBoxIndirectParamAorW (USER32.@)
 882  */
 883 INT_PTR WINAPI DialogBoxIndirectParamAorW( HINSTANCE hInstance, LPCVOID template,
 884                                            HWND owner, DLGPROC dlgProc,
 885                                            LPARAM param, DWORD flags )
 886 {
 887     HWND hwnd = DIALOG_CreateIndirect( hInstance, template, owner, dlgProc, param, !flags, TRUE );
 888     if (hwnd) return DIALOG_DoDialogBox( hwnd, owner );
 889     return -1;
 890 }
 891
 892 /***********************************************************************
 893  *              DialogBoxIndirectParamA (USER32.@)
 894  */
 895 INT_PTR WINAPI DialogBoxIndirectParamA(HINSTANCE hInstance, LPCDLGTEMPLATEA template,
 896                                        HWND owner, DLGPROC dlgProc, LPARAM param )
 897 {
 898     return DialogBoxIndirectParamAorW( hInstance, template, owner, dlgProc, param, 2 );
 899 }
 900
 901
 902 /***********************************************************************
 903  *              DialogBoxIndirectParamW (USER32.@)
 904  */
 905 INT_PTR WINAPI DialogBoxIndirectParamW(HINSTANCE hInstance, LPCDLGTEMPLATEW template,
 906                                        HWND owner, DLGPROC dlgProc, LPARAM param )
 907 {
 908     return DialogBoxIndirectParamAorW( hInstance, template, owner, dlgProc, param, 0 );
 909 }
 910
 911 /***********************************************************************
 912  *              EndDialog (USER32.@)
 913  */
 914 BOOL WINAPI EndDialog( HWND hwnd, INT_PTR retval )
 915 {
 916     BOOL wasEnabled = TRUE;
 917     DIALOGINFO * dlgInfo;
 918     HWND owner;
 919
 920     TRACE("%p %ld\n", hwnd, retval );
 921
 922     if (!(dlgInfo = DIALOG_get_info( hwnd, FALSE )))
 923     {
 924         ERR("got invalid window handle (%p); buggy app !?\n", hwnd);
 925         return FALSE;
 926     }
 927     dlgInfo->idResult = retval;
 928     dlgInfo->flags |= DF_END;
 929     wasEnabled = (dlgInfo->flags & DF_OWNERENABLED);
 930
 931     owner = GetWindow( hwnd, GW_OWNER );
 932     if (wasEnabled && owner)
 933         DIALOG_EnableOwner( owner );
 934
 935     /* Windows sets the focus to the dialog itself in EndDialog */
 936
 937     if (IsChild(hwnd, GetFocus()))
 938        SetFocus( hwnd );
 939
 940     /* Don't have to send a ShowWindow(SW_HIDE), just do
 941        SetWindowPos with SWP_HIDEWINDOW as done in Windows */
 942
 943     SetWindowPos(hwnd, NULL, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE
 944                  | SWP_NOZORDER | SWP_NOACTIVATE | SWP_HIDEWINDOW);
 945
 946     if (hwnd == GetActiveWindow())
 947     {
 948         /* If this dialog was given an owner then set the focus to that owner
 949            even when the owner is disabled (normally when a window closes any
 950            disabled windows cannot receive the focus). */
 951         if (owner)
 952             SetForegroundWindow( owner );
 953         else
 954             WINPOS_ActivateOtherWindow( hwnd );
 955     }
 956
 957     /* unblock dialog loop */
 958     PostMessageA(hwnd, WM_NULL, 0, 0);
 959     return TRUE;
 960 }
 961
 962
 963 /***********************************************************************
 964  *           DIALOG_IsAccelerator
 965  */
 966 static BOOL DIALOG_IsAccelerator( HWND hwnd, HWND hwndDlg, WPARAM wParam )
 967 {
 968     HWND hwndControl = hwnd;
 969     HWND hwndNext;
 970     INT dlgCode;
 971     WCHAR buffer[128];
 972
 973     do
 974     {
 975         DWORD style = GetWindowLongW( hwndControl, GWL_STYLE );
 976         if ((style & (WS_VISIBLE | WS_DISABLED)) == WS_VISIBLE)
 977         {
 978             dlgCode = SendMessageW( hwndControl, WM_GETDLGCODE, 0, 0 );
 979             if ( (dlgCode & (DLGC_BUTTON | DLGC_STATIC)) &&
 980                  GetWindowTextW( hwndControl, buffer, sizeof(buffer)/sizeof(WCHAR) ))
 981             {
 982                 /* find the accelerator key */
 983                 LPWSTR p = buffer - 2;
 984
 985                 do
 986                 {
 987                     p = strchrW( p + 2, '&' );
 988                 }
 989                 while (p != NULL && p[1] == '&');
 990
 991                 /* and check if it's the one we're looking for */
 992                 if (p != NULL && toupperW( p[1] ) == toupperW( wParam ) )
 993                 {
 994                     if ((dlgCode & DLGC_STATIC) || (style & 0x0f) == BS_GROUPBOX )
 995                     {
 996                         /* set focus to the control */
 997                         SendMessageW( hwndDlg, WM_NEXTDLGCTL, (WPARAM)hwndControl, 1);
 998                         /* and bump it on to next */
 999                         SendMessageW( hwndDlg, WM_NEXTDLGCTL, 0, 0);
1000                     }
1001                     else if (dlgCode & DLGC_BUTTON)
1002                     {
1003                         /* send BM_CLICK message to the control */
1004                         SendMessageW( hwndControl, BM_CLICK, 0, 0 );
1005                     }
1006                     return TRUE;
1007                 }
1008             }
1009             hwndNext = GetWindow( hwndControl, GW_CHILD );
1010         }
1011         else hwndNext = 0;
1012
1013         if (!hwndNext) hwndNext = GetWindow( hwndControl, GW_HWNDNEXT );
1014
1015         while (!hwndNext && hwndControl)
1016         {
1017             hwndControl = GetParent( hwndControl );
1018             if (hwndControl == hwndDlg)
1019             {
1020                 if(hwnd==hwndDlg)   /* prevent endless loop */
1021                 {
1022                     hwndNext=hwnd;
1023                     break;
1024                 }
1025                 hwndNext = GetWindow( hwndDlg, GW_CHILD );
1026             }
1027             else
1028                 hwndNext = GetWindow( hwndControl, GW_HWNDNEXT );
1029         }
1030         hwndControl = hwndNext;
1031     }
1032     while (hwndControl && (hwndControl != hwnd));
1033
1034     return FALSE;
1035 }
1036
1037 /***********************************************************************
1038  *           DIALOG_FindMsgDestination
1039  *
1040  * The messages that IsDialogMessage sends may not go to the dialog
1041  * calling IsDialogMessage if that dialog is a child, and it has the
1042  * DS_CONTROL style set.
1043  * We propagate up until we hit one that does not have DS_CONTROL, or
1044  * whose parent is not a dialog.
1045  *
1046  * This is undocumented behaviour.
1047  */
1048 static HWND DIALOG_FindMsgDestination( HWND hwndDlg )
1049 {
1050     while (GetWindowLongA(hwndDlg, GWL_STYLE) & DS_CONTROL)
1051     {
1052         WND *pParent;
1053         HWND hParent = GetParent(hwndDlg);
1054         if (!hParent) break;
1055
1056         pParent = WIN_GetPtr(hParent);
1057         if (!pParent || pParent == WND_OTHER_PROCESS || pParent == WND_DESKTOP) break;
1058
1059         if (!pParent->dlgInfo)
1060         {
1061             WIN_ReleasePtr(pParent);
1062             break;
1063         }
1064         WIN_ReleasePtr(pParent);
1065
1066         hwndDlg = hParent;
1067     }
1068
1069     return hwndDlg;
1070 }
1071
1072 /***********************************************************************
1073  *              DIALOG_FixOneChildOnChangeFocus
1074  *
1075  * Callback helper for DIALOG_FixChildrenOnChangeFocus
1076  */
1077
1078 static BOOL CALLBACK DIALOG_FixOneChildOnChangeFocus (HWND hwndChild,
1079         LPARAM lParam)
1080 {
1081     /* If a default pushbutton then no longer default */
1082     if (DLGC_DEFPUSHBUTTON & SendMessageW (hwndChild, WM_GETDLGCODE, 0, 0))
1083         SendMessageW (hwndChild, BM_SETSTYLE, BS_PUSHBUTTON, TRUE);
1084     return TRUE;
1085 }
1086
1087 /***********************************************************************
1088  *              DIALOG_FixChildrenOnChangeFocus
1089  *
1090  * Following the change of focus that occurs for example after handling
1091  * a WM_KEYDOWN VK_TAB in IsDialogMessage, some tidying of the dialog's
1092  * children may be required.
1093  */
1094 static void DIALOG_FixChildrenOnChangeFocus (HWND hwndDlg, HWND hwndNext)
1095 {
1096     INT dlgcode_next = SendMessageW (hwndNext, WM_GETDLGCODE, 0, 0);
1097     /* INT dlgcode_dlg  = SendMessageW (hwndDlg, WM_GETDLGCODE, 0, 0); */
1098     /* Windows does ask for this.  I don't know why yet */
1099
1100     EnumChildWindows (hwndDlg, DIALOG_FixOneChildOnChangeFocus, 0);
1101
1102     /* If the button that is getting the focus WAS flagged as the default
1103      * pushbutton then ask the dialog what it thinks the default is and
1104      * set that in the default style.
1105      */
1106     if (dlgcode_next & DLGC_DEFPUSHBUTTON)
1107     {
1108         DWORD def_id = SendMessageW (hwndDlg, DM_GETDEFID, 0, 0);
1109         if (HIWORD(def_id) == DC_HASDEFID)
1110         {
1111             HWND hwndDef;
1112             def_id = LOWORD(def_id);
1113             hwndDef = GetDlgItem (hwndDlg, def_id);
1114             if (hwndDef)
1115             {
1116                 INT dlgcode_def = SendMessageW (hwndDef, WM_GETDLGCODE, 0, 0);
1117                 /* I know that if it is a button then it should already be a
1118                  * UNDEFPUSHBUTTON, since we have just told the buttons to
1119                  * change style.  But maybe they ignored our request
1120                  */
1121                 if ((dlgcode_def & DLGC_BUTTON) &&
1122                         (dlgcode_def &  DLGC_UNDEFPUSHBUTTON))
1123                 {
1124                     SendMessageW (hwndDef, BM_SETSTYLE, BS_DEFPUSHBUTTON, TRUE);
1125                 }
1126             }
1127         }
1128     }
1129     else if ((dlgcode_next & DLGC_BUTTON) && (dlgcode_next & DLGC_UNDEFPUSHBUTTON))
1130     {
1131         SendMessageW (hwndNext, BM_SETSTYLE, BS_DEFPUSHBUTTON, TRUE);
1132         /* I wonder why it doesn't send a DM_SETDEFID */
1133     }
1134 }
1135
1136 /***********************************************************************
1137  *           DIALOG_IdToHwnd
1138  *
1139  * A recursive version of GetDlgItem
1140  *
1141  * RETURNS
1142  *  The HWND for a Child ID.
1143  */
1144 static HWND DIALOG_IdToHwnd( HWND hwndDlg, INT id )
1145 {
1146     int i;
1147     HWND *list = WIN_ListChildren( hwndDlg );
1148     HWND ret = 0;
1149
1150     if (!list) return 0;
1151
1152     for (i = 0; list[i]; i++)
1153     {
1154         if (GetWindowLongPtrW( list[i], GWLP_ID ) == id)
1155         {
1156             ret = list[i];
1157             break;
1158         }
1159
1160         /* Recurse into every child */
1161         if ((ret = DIALOG_IdToHwnd( list[i], id ))) break;
1162     }
1163
1164     HeapFree( GetProcessHeap(), 0, list );
1165     return ret;
1166 }
1167
1168 /***********************************************************************
1169  *              IsDialogMessageW (USER32.@)
1170  */
1171 BOOL WINAPI IsDialogMessageW( HWND hwndDlg, LPMSG msg )
1172 {
1173     INT dlgCode = 0;
1174
1175     if (CallMsgFilterW( msg, MSGF_DIALOGBOX )) return TRUE;
1176
1177     hwndDlg = WIN_GetFullHandle( hwndDlg );
1178     if (is_desktop_window(hwndDlg)) return FALSE;
1179     if ((hwndDlg != msg->hwnd) && !IsChild( hwndDlg, msg->hwnd )) return FALSE;
1180
1181     hwndDlg = DIALOG_FindMsgDestination(hwndDlg);
1182
1183     switch(msg->message)
1184     {
1185     case WM_KEYDOWN:
1186         dlgCode = SendMessageW( msg->hwnd, WM_GETDLGCODE, msg->wParam, (LPARAM)msg );
1187         if (dlgCode & (DLGC_WANTMESSAGE)) break;
1188
1189         switch(msg->wParam)
1190         {
1191         case VK_TAB:
1192             if (!(dlgCode & DLGC_WANTTAB))
1193             {
1194                 BOOL fIsDialog = TRUE;
1195                 WND *pWnd = WIN_GetPtr( hwndDlg );
1196
1197                 if (pWnd && pWnd != WND_OTHER_PROCESS)
1198                 {
1199                     fIsDialog = (pWnd->dlgInfo != NULL);
1200                     WIN_ReleasePtr(pWnd);
1201                 }
1202
1203                 /* I am not sure under which circumstances the TAB is handled
1204                  * each way.  All I do know is that it does not always simply
1205                  * send WM_NEXTDLGCTL.  (Personally I have never yet seen it
1206                  * do so but I presume someone has)
1207                  */
1208                 if (fIsDialog)
1209                     SendMessageW( hwndDlg, WM_NEXTDLGCTL, (GetKeyState(VK_SHIFT) & 0x8000), 0 );
1210                 else
1211                 {
1212                     /* It would appear that GetNextDlgTabItem can handle being
1213                      * passed hwndDlg rather than NULL but that is undocumented
1214                      * so let's do it properly
1215                      */
1216                     HWND hwndFocus = GetFocus();
1217                     HWND hwndNext = GetNextDlgTabItem (hwndDlg,
1218                             hwndFocus == hwndDlg ? NULL : hwndFocus,
1219                             GetKeyState (VK_SHIFT) & 0x8000);
1220                     if (hwndNext)
1221                     {
1222                         dlgCode = SendMessageW (hwndNext, WM_GETDLGCODE,
1223                                 msg->wParam, (LPARAM)msg);
1224                         if (dlgCode & DLGC_HASSETSEL)
1225                         {
1226                             INT maxlen = 1 + SendMessageW (hwndNext, WM_GETTEXTLENGTH, 0, 0);
1227                             WCHAR *buffer = HeapAlloc (GetProcessHeap(), 0, maxlen * sizeof(WCHAR));
1228                             if (buffer)
1229                             {
1230                                 INT length;
1231                                 SendMessageW (hwndNext, WM_GETTEXT, maxlen, (LPARAM) buffer);
1232                                 length = strlenW (buffer);
1233                                 HeapFree (GetProcessHeap(), 0, buffer);
1234                                 SendMessageW (hwndNext, EM_SETSEL, 0, length);
1235                             }
1236                         }
1237                         SetFocus (hwndNext);
1238                         DIALOG_FixChildrenOnChangeFocus (hwndDlg, hwndNext);
1239                     }
1240                     else
1241                         return FALSE;
1242                 }
1243                 return TRUE;
1244             }
1245             break;
1246
1247         case VK_RIGHT:
1248         case VK_DOWN:
1249         case VK_LEFT:
1250         case VK_UP:
1251             if (!(dlgCode & DLGC_WANTARROWS))
1252             {
1253                 BOOL fPrevious = (msg->wParam == VK_LEFT || msg->wParam == VK_UP);
1254                 HWND hwndNext = GetNextDlgGroupItem (hwndDlg, GetFocus(), fPrevious );
1255                 SendMessageW( hwndDlg, WM_NEXTDLGCTL, (WPARAM)hwndNext, 1 );
1256                 return TRUE;
1257             }
1258             break;
1259
1260         case VK_CANCEL:
1261         case VK_ESCAPE:
1262             SendMessageW( hwndDlg, WM_COMMAND, IDCANCEL, (LPARAM)GetDlgItem( hwndDlg, IDCANCEL ) );
1263             return TRUE;
1264
1265         case VK_EXECUTE:
1266         case VK_RETURN:
1267             {
1268                 DWORD dw;
1269                 if ((GetFocus() == msg->hwnd) &&
1270                     (SendMessageW (msg->hwnd, WM_GETDLGCODE, 0, 0) & DLGC_DEFPUSHBUTTON))
1271                 {
1272                     SendMessageW (hwndDlg, WM_COMMAND, MAKEWPARAM (GetDlgCtrlID(msg->hwnd),BN_CLICKED), (LPARAM)msg->hwnd);
1273                 }
1274                 else if (DC_HASDEFID == HIWORD(dw = SendMessageW (hwndDlg, DM_GETDEFID, 0, 0)))
1275                 {
1276                     HWND hwndDef = DIALOG_IdToHwnd(hwndDlg, LOWORD(dw));
1277                     if (hwndDef ? IsWindowEnabled(hwndDef) : LOWORD(dw)==IDOK)
1278                         SendMessageW( hwndDlg, WM_COMMAND, MAKEWPARAM( LOWORD(dw), BN_CLICKED ), (LPARAM)hwndDef);
1279                 }
1280                 else
1281                 {
1282                     SendMessageW( hwndDlg, WM_COMMAND, IDOK, (LPARAM)GetDlgItem( hwndDlg, IDOK ) );
1283
1284                 }
1285             }
1286             return TRUE;
1287         }
1288         break;
1289
1290     case WM_CHAR:
1291         /* FIXME Under what circumstances does WM_GETDLGCODE get sent?
1292          * It does NOT get sent in the test program I have
1293          */
1294         dlgCode = SendMessageW( msg->hwnd, WM_GETDLGCODE, msg->wParam, (LPARAM)msg );
1295         if (dlgCode & (DLGC_WANTCHARS|DLGC_WANTMESSAGE)) break;
1296         if (msg->wParam == '\t' && (dlgCode & DLGC_WANTTAB)) break;
1297         /* drop through */
1298
1299     case WM_SYSCHAR:
1300         if (DIALOG_IsAccelerator( WIN_GetFullHandle(msg->hwnd), hwndDlg, msg->wParam ))
1301         {
1302             /* don't translate or dispatch */
1303             return TRUE;
1304         }
1305         break;
1306     }
1307
1308     TranslateMessage( msg );
1309     DispatchMessageW( msg );
1310     return TRUE;
1311 }
1312
1313
1314 /***********************************************************************
1315  *              GetDlgCtrlID (USER32.@)
1316  */
1317 INT WINAPI GetDlgCtrlID( HWND hwnd )
1318 {
1319     return GetWindowLongPtrW( hwnd, GWLP_ID );
1320 }
1321
1322
1323 /***********************************************************************
1324  *              GetDlgItem (USER32.@)
1325  */
1326 HWND WINAPI GetDlgItem( HWND hwndDlg, INT id )
1327 {
1328     int i;
1329     HWND *list = WIN_ListChildren( hwndDlg );
1330     HWND ret = 0;
1331
1332     if (!list) return 0;
1333
1334     for (i = 0; list[i]; i++) if (GetWindowLongPtrW( list[i], GWLP_ID ) == id) break;
1335     ret = list[i];
1336     HeapFree( GetProcessHeap(), 0, list );
1337     return ret;
1338 }
1339
1340
1341 /*******************************************************************
1342  *              SendDlgItemMessageA (USER32.@)
1343  */
1344 LRESULT WINAPI SendDlgItemMessageA( HWND hwnd, INT id, UINT msg,
1345                                       WPARAM wParam, LPARAM lParam )
1346 {
1347     HWND hwndCtrl = GetDlgItem( hwnd, id );
1348     if (hwndCtrl) return SendMessageA( hwndCtrl, msg, wParam, lParam );
1349     else return 0;
1350 }
1351
1352
1353 /*******************************************************************
1354  *              SendDlgItemMessageW (USER32.@)
1355  */
1356 LRESULT WINAPI SendDlgItemMessageW( HWND hwnd, INT id, UINT msg,
1357                                       WPARAM wParam, LPARAM lParam )
1358 {
1359     HWND hwndCtrl = GetDlgItem( hwnd, id );
1360     if (hwndCtrl) return SendMessageW( hwndCtrl, msg, wParam, lParam );
1361     else return 0;
1362 }
1363
1364
1365 /*******************************************************************
1366  *              SetDlgItemTextA (USER32.@)
1367  */
1368 BOOL WINAPI SetDlgItemTextA( HWND hwnd, INT id, LPCSTR lpString )
1369 {
1370     return SendDlgItemMessageA( hwnd, id, WM_SETTEXT, 0, (LPARAM)lpString );
1371 }
1372
1373
1374 /*******************************************************************
1375  *              SetDlgItemTextW (USER32.@)
1376  */
1377 BOOL WINAPI SetDlgItemTextW( HWND hwnd, INT id, LPCWSTR lpString )
1378 {
1379     return SendDlgItemMessageW( hwnd, id, WM_SETTEXT, 0, (LPARAM)lpString );
1380 }
1381
1382
1383 /***********************************************************************
1384  *              GetDlgItemTextA (USER32.@)
1385  */
1386 UINT WINAPI GetDlgItemTextA( HWND hwnd, INT id, LPSTR str, INT len )
1387 {
1388     if (str && (len > 0)) str[0] = '\0';
1389     return (UINT)SendDlgItemMessageA( hwnd, id, WM_GETTEXT,
1390                                          len, (LPARAM)str );
1391 }
1392
1393
1394 /***********************************************************************
1395  *              GetDlgItemTextW (USER32.@)
1396  */
1397 UINT WINAPI GetDlgItemTextW( HWND hwnd, INT id, LPWSTR str, INT len )
1398 {
1399     if (str && (len > 0)) str[0] = '\0';
1400     return (UINT)SendDlgItemMessageW( hwnd, id, WM_GETTEXT,
1401                                          len, (LPARAM)str );
1402 }
1403
1404
1405 /*******************************************************************
1406  *              SetDlgItemInt (USER32.@)
1407  */
1408 BOOL WINAPI SetDlgItemInt( HWND hwnd, INT id, UINT value,
1409                              BOOL fSigned )
1410 {
1411     char str[20];
1412
1413     if (fSigned) sprintf( str, "%d", (INT)value );
1414     else sprintf( str, "%u", value );
1415     SendDlgItemMessageA( hwnd, id, WM_SETTEXT, 0, (LPARAM)str );
1416     return TRUE;
1417 }
1418
1419
1420 /***********************************************************************
1421  *              GetDlgItemInt (USER32.@)
1422  */
1423 UINT WINAPI GetDlgItemInt( HWND hwnd, INT id, BOOL *translated,
1424                                BOOL fSigned )
1425 {
1426     char str[30];
1427     char * endptr;
1428     LONG_PTR result = 0;
1429
1430     if (translated) *translated = FALSE;
1431     if (!SendDlgItemMessageA(hwnd, id, WM_GETTEXT, sizeof(str), (LPARAM)str))
1432         return 0;
1433     if (fSigned)
1434     {
1435         result = strtol( str, &endptr, 10 );
1436         if (!endptr || (endptr == str))  /* Conversion was unsuccessful */
1437             return 0;
1438         if (((result == LONG_MIN) || (result == LONG_MAX)) && (errno==ERANGE))
1439             return 0;
1440     }
1441     else
1442     {
1443         result = strtoul( str, &endptr, 10 );
1444         if (!endptr || (endptr == str))  /* Conversion was unsuccessful */
1445             return 0;
1446         if ((result == ULONG_MAX) && (errno == ERANGE)) return 0;
1447     }
1448     if (translated) *translated = TRUE;
1449     return (UINT)result;
1450 }
1451
1452
1453 /***********************************************************************
1454  *              CheckDlgButton (USER32.@)
1455  */
1456 BOOL WINAPI CheckDlgButton( HWND hwnd, INT id, UINT check )
1457 {
1458     SendDlgItemMessageW( hwnd, id, BM_SETCHECK, check, 0 );
1459     return TRUE;
1460 }
1461
1462
1463 /***********************************************************************
1464  *              IsDlgButtonChecked (USER32.@)
1465  */
1466 UINT WINAPI IsDlgButtonChecked( HWND hwnd, int id )
1467 {
1468     return (UINT)SendDlgItemMessageW( hwnd, id, BM_GETCHECK, 0, 0 );
1469 }
1470
1471
1472 /***********************************************************************
1473  *           CheckRB
1474  *
1475  * Callback function used to check/uncheck radio buttons that fall
1476  * within a specific range of IDs.
1477  */
1478 static BOOL CALLBACK CheckRB(HWND hwndChild, LPARAM lParam)
1479 {
1480     LONG lChildID = GetWindowLongPtrW(hwndChild, GWLP_ID);
1481     RADIOGROUP *lpRadioGroup = (RADIOGROUP *) lParam;
1482
1483     if ((lChildID >= lpRadioGroup->firstID) &&
1484         (lChildID <= lpRadioGroup->lastID))
1485     {
1486         if (lChildID == lpRadioGroup->checkID)
1487         {
1488             SendMessageW(hwndChild, BM_SETCHECK, BST_CHECKED, 0);
1489         }
1490         else
1491         {
1492             SendMessageW(hwndChild, BM_SETCHECK, BST_UNCHECKED, 0);
1493         }
1494     }
1495
1496     return TRUE;
1497 }
1498
1499
1500 /***********************************************************************
1501  *              CheckRadioButton (USER32.@)
1502  */
1503 BOOL WINAPI CheckRadioButton( HWND hwndDlg, int firstID,
1504                               int lastID, int checkID )
1505 {
1506     RADIOGROUP radioGroup;
1507
1508     radioGroup.firstID = firstID;
1509     radioGroup.lastID = lastID;
1510     radioGroup.checkID = checkID;
1511
1512     return EnumChildWindows(hwndDlg, (WNDENUMPROC)CheckRB,
1513                             (LPARAM)&radioGroup);
1514 }
1515
1516
1517 /***********************************************************************
1518  *              GetDialogBaseUnits (USER.243)
1519  *              GetDialogBaseUnits (USER32.@)
1520  */
1521 DWORD WINAPI GetDialogBaseUnits(void)
1522 {
1523     static DWORD units;
1524
1525     if (!units)
1526     {
1527         HDC hdc;
1528         SIZE size;
1529
1530         if ((hdc = GetDC(0)))
1531         {
1532             size.cx = GdiGetCharDimensions( hdc, NULL, &size.cy );
1533             if (size.cx) units = MAKELONG( size.cx, size.cy );
1534             ReleaseDC( 0, hdc );
1535         }
1536         TRACE("base units = %d,%d\n", LOWORD(units), HIWORD(units) );
1537     }
1538     return units;
1539 }
1540
1541
1542 /***********************************************************************
1543  *              MapDialogRect (USER32.@)
1544  */
1545 BOOL WINAPI MapDialogRect( HWND hwnd, LPRECT rect )
1546 {
1547     DIALOGINFO * dlgInfo;
1548     if (!(dlgInfo = DIALOG_get_info( hwnd, FALSE ))) return FALSE;
1549     rect->left   = MulDiv(rect->left, dlgInfo->xBaseUnit, 4);
1550     rect->right  = MulDiv(rect->right, dlgInfo->xBaseUnit, 4);
1551     rect->top    = MulDiv(rect->top, dlgInfo->yBaseUnit, 8);
1552     rect->bottom = MulDiv(rect->bottom, dlgInfo->yBaseUnit, 8);
1553     return TRUE;
1554 }
1555
1556
1557 /***********************************************************************
1558  *              GetNextDlgGroupItem (USER32.@)
1559  *
1560  * Corrections to MSDN documentation
1561  *
1562  * (Under Windows 2000 at least, where hwndDlg is not actually a dialog)
1563  * 1. hwndCtrl can be hwndDlg in which case it behaves as for NULL
1564  * 2. Prev of NULL or hwndDlg fails
1565  */
1566 HWND WINAPI GetNextDlgGroupItem( HWND hwndDlg, HWND hwndCtrl, BOOL fPrevious )
1567 {
1568     HWND hwnd, hwndNext, retvalue, hwndLastGroup = 0;
1569     BOOL fLooped=FALSE;
1570     BOOL fSkipping=FALSE;
1571
1572     hwndDlg = WIN_GetFullHandle( hwndDlg );
1573     hwndCtrl = WIN_GetFullHandle( hwndCtrl );
1574
1575     if (hwndDlg == hwndCtrl) hwndCtrl = NULL;
1576     if (!hwndCtrl && fPrevious) return 0;
1577
1578     if (hwndCtrl)
1579     {
1580         if (!IsChild (hwndDlg, hwndCtrl)) return 0;
1581     }
1582     else
1583     {
1584         /* No ctrl specified -> start from the beginning */
1585         if (!(hwndCtrl = GetWindow( hwndDlg, GW_CHILD ))) return 0;
1586         /* MSDN is wrong. fPrevious does not result in the last child */
1587
1588         /* Maybe that first one is valid.  If so then we don't want to skip it*/
1589         if ((GetWindowLongW( hwndCtrl, GWL_STYLE ) & (WS_VISIBLE|WS_DISABLED)) == WS_VISIBLE)
1590         {
1591             return hwndCtrl;
1592         }
1593     }
1594
1595     /* Always go forward around the group and list of controls; for the
1596      * previous control keep track; for the next break when you find one
1597      */
1598     retvalue = hwndCtrl;
1599     hwnd = hwndCtrl;
1600     while (hwndNext = GetWindow (hwnd, GW_HWNDNEXT),
1601            1)
1602     {
1603         while (!hwndNext)
1604         {
1605             /* Climb out until there is a next sibling of the ancestor or we
1606              * reach the top (in which case we loop back to the start)
1607              */
1608             if (hwndDlg == GetParent (hwnd))
1609             {
1610                 /* Wrap around to the beginning of the list, within the same
1611                  * group. (Once only)
1612                  */
1613                 if (fLooped) goto end;
1614                 fLooped = TRUE;
1615                 hwndNext = GetWindow (hwndDlg, GW_CHILD);
1616             }
1617             else
1618             {
1619                 hwnd = GetParent (hwnd);
1620                 hwndNext = GetWindow (hwnd, GW_HWNDNEXT);
1621             }
1622         }
1623         hwnd = hwndNext;
1624
1625         /* Wander down the leading edge of controlparents */
1626         while ( (GetWindowLongW (hwnd, GWL_EXSTYLE) & WS_EX_CONTROLPARENT) &&
1627                 ((GetWindowLongW (hwnd, GWL_STYLE) & (WS_VISIBLE | WS_DISABLED)) == WS_VISIBLE) &&
1628                 (hwndNext = GetWindow (hwnd, GW_CHILD)))
1629             hwnd = hwndNext;
1630         /* Question.  If the control is a control parent but either has no
1631          * children or is not visible/enabled then if it has a WS_GROUP does
1632          * it count?  For that matter does it count anyway?
1633          * I believe it doesn't count.
1634          */
1635
1636         if ((GetWindowLongW (hwnd, GWL_STYLE) & WS_GROUP))
1637         {
1638             hwndLastGroup = hwnd;
1639             if (!fSkipping)
1640             {
1641                 /* Look for the beginning of the group */
1642                 fSkipping = TRUE;
1643             }
1644         }
1645
1646         if (hwnd == hwndCtrl)
1647         {
1648             if (!fSkipping) break;
1649             if (hwndLastGroup == hwnd) break;
1650             hwnd = hwndLastGroup;
1651             fSkipping = FALSE;
1652             fLooped = FALSE;
1653         }
1654
1655         if (!fSkipping &&
1656             (GetWindowLongW (hwnd, GWL_STYLE) & (WS_VISIBLE|WS_DISABLED)) ==
1657              WS_VISIBLE)
1658         {
1659             retvalue = hwnd;
1660             if (!fPrevious) break;
1661         }
1662     }
1663 end:
1664     return retvalue;
1665 }
1666
1667
1668 /***********************************************************************
1669  *           DIALOG_GetNextTabItem
1670  *
1671  * Recursive helper for GetNextDlgTabItem
1672  */
1673 static HWND DIALOG_GetNextTabItem( HWND hwndMain, HWND hwndDlg, HWND hwndCtrl, BOOL fPrevious )
1674 {
1675     LONG dsStyle;
1676     LONG exStyle;
1677     UINT wndSearch = fPrevious ? GW_HWNDPREV : GW_HWNDNEXT;
1678     HWND retWnd = 0;
1679     HWND hChildFirst = 0;
1680
1681     if(!hwndCtrl)
1682     {
1683         hChildFirst = GetWindow(hwndDlg,GW_CHILD);
1684         if(fPrevious) hChildFirst = GetWindow(hChildFirst,GW_HWNDLAST);
1685     }
1686     else if (IsChild( hwndMain, hwndCtrl ))
1687     {
1688         hChildFirst = GetWindow(hwndCtrl,wndSearch);
1689         if(!hChildFirst)
1690         {
1691             if(GetParent(hwndCtrl) != hwndMain)
1692                 /* i.e. if we are not at the top level of the recursion */
1693                 hChildFirst = GetWindow(GetParent(hwndCtrl),wndSearch);
1694             else
1695                 hChildFirst = GetWindow(hwndCtrl, fPrevious ? GW_HWNDLAST : GW_HWNDFIRST);
1696         }
1697     }
1698
1699     while(hChildFirst)
1700     {
1701         dsStyle = GetWindowLongA(hChildFirst,GWL_STYLE);
1702         exStyle = GetWindowLongA(hChildFirst,GWL_EXSTYLE);
1703         if( (exStyle & WS_EX_CONTROLPARENT) && (dsStyle & WS_VISIBLE) && !(dsStyle & WS_DISABLED))
1704         {
1705             HWND retWnd;
1706             retWnd = DIALOG_GetNextTabItem(hwndMain,hChildFirst,NULL,fPrevious );
1707             if (retWnd) return (retWnd);
1708         }
1709         else if( (dsStyle & WS_TABSTOP) && (dsStyle & WS_VISIBLE) && !(dsStyle & WS_DISABLED))
1710         {
1711             return (hChildFirst);
1712         }
1713         hChildFirst = GetWindow(hChildFirst,wndSearch);
1714     }
1715     if(hwndCtrl)
1716     {
1717         HWND hParent = GetParent(hwndCtrl);
1718         while(hParent)
1719         {
1720             if(hParent == hwndMain) break;
1721             retWnd = DIALOG_GetNextTabItem(hwndMain,GetParent(hParent),hParent,fPrevious );
1722             if(retWnd) break;
1723             hParent = GetParent(hParent);
1724         }
1725         if(!retWnd)
1726             retWnd = DIALOG_GetNextTabItem(hwndMain,hwndMain,NULL,fPrevious );
1727     }
1728     return retWnd ? retWnd : hwndCtrl;
1729 }
1730
1731 /***********************************************************************
1732  *              GetNextDlgTabItem (USER32.@)
1733  */
1734 HWND WINAPI GetNextDlgTabItem( HWND hwndDlg, HWND hwndCtrl,
1735                                    BOOL fPrevious )
1736 {
1737     hwndDlg = WIN_GetFullHandle( hwndDlg );
1738     hwndCtrl = WIN_GetFullHandle( hwndCtrl );
1739
1740     /* Undocumented but tested under Win2000 and WinME */
1741     if (hwndDlg == hwndCtrl) hwndCtrl = NULL;
1742
1743     /* Contrary to MSDN documentation, tested under Win2000 and WinME
1744      * NB GetLastError returns whatever was set before the function was
1745      * called.
1746      */
1747     if (!hwndCtrl && fPrevious) return 0;
1748
1749     return DIALOG_GetNextTabItem(hwndDlg,hwndDlg,hwndCtrl,fPrevious);
1750 }
1751
1752 /**********************************************************************
1753  *           DIALOG_DlgDirSelect
1754  *
1755  * Helper function for DlgDirSelect*
1756  */
1757 static BOOL DIALOG_DlgDirSelect( HWND hwnd, LPWSTR str, INT len,
1758                                  INT id, BOOL unicode, BOOL combo )
1759 {
1760     WCHAR *buffer, *ptr;
1761     INT item, size;
1762     BOOL ret;
1763     HWND listbox = GetDlgItem( hwnd, id );
1764
1765     TRACE("%p %s %d\n", hwnd, unicode ? debugstr_w(str) : debugstr_a((LPSTR)str), id );
1766     if (!listbox) return FALSE;
1767
1768     item = SendMessageW(listbox, combo ? CB_GETCURSEL : LB_GETCURSEL, 0, 0 );
1769     if (item == LB_ERR) return FALSE;
1770
1771     size = SendMessageW(listbox, combo ? CB_GETLBTEXTLEN : LB_GETTEXTLEN, item, 0 );
1772     if (size == LB_ERR) return FALSE;
1773
1774     if (!(buffer = HeapAlloc( GetProcessHeap(), 0, (size+2) * sizeof(WCHAR) ))) return FALSE;
1775
1776     SendMessageW( listbox, combo ? CB_GETLBTEXT : LB_GETTEXT, item, (LPARAM)buffer );
1777
1778     if ((ret = (buffer[0] == '[')))  /* drive or directory */
1779     {
1780         if (buffer[1] == '-')  /* drive */
1781         {
1782             buffer[3] = ':';
1783             buffer[4] = 0;
1784             ptr = buffer + 2;
1785         }
1786         else
1787         {
1788             buffer[strlenW(buffer)-1] = '\\';
1789             ptr = buffer + 1;
1790         }
1791     }
1792     else
1793     {
1794         /* Filenames without a dot extension must have one tacked at the end */
1795         if (strchrW(buffer, '.') == NULL)
1796         {
1797             buffer[strlenW(buffer)+1] = '\0';
1798             buffer[strlenW(buffer)] = '.';
1799         }
1800         ptr = buffer;
1801     }
1802
1803     if (!unicode)
1804     {
1805         if (len > 0 && !WideCharToMultiByte( CP_ACP, 0, ptr, -1, (LPSTR)str, len, 0, 0 ))
1806             ((LPSTR)str)[len-1] = 0;
1807     }
1808     else lstrcpynW( str, ptr, len );
1809     HeapFree( GetProcessHeap(), 0, buffer );
1810     TRACE("Returning %d %s\n", ret, unicode ? debugstr_w(str) : debugstr_a((LPSTR)str) );
1811     return ret;
1812 }
1813
1814
1815 /**********************************************************************
1816  *          DIALOG_DlgDirListW
1817  *
1818  * Helper function for DlgDirList*W
1819  */
1820 static INT DIALOG_DlgDirListW( HWND hDlg, LPWSTR spec, INT idLBox,
1821                                INT idStatic, UINT attrib, BOOL combo )
1822 {
1823     HWND hwnd;
1824     LPWSTR orig_spec = spec;
1825     WCHAR any[] = {'*','.','*',0};
1826
1827 #define SENDMSG(msg,wparam,lparam) \
1828     ((attrib & DDL_POSTMSGS) ? PostMessageW( hwnd, msg, wparam, lparam ) \
1829                              : SendMessageW( hwnd, msg, wparam, lparam ))
1830
1831     TRACE("%p %s %d %d %04x\n", hDlg, debugstr_w(spec), idLBox, idStatic, attrib );
1832
1833     /* If the path exists and is a directory, chdir to it */
1834     if (!spec || !spec[0] || SetCurrentDirectoryW( spec )) spec = any;
1835     else
1836     {
1837         WCHAR *p, *p2;
1838         p = spec;
1839         if ((p2 = strchrW( p, ':' ))) p = p2 + 1;
1840         if ((p2 = strrchrW( p, '\\' ))) p = p2;
1841         if ((p2 = strrchrW( p, '/' ))) p = p2;
1842         if (p != spec)
1843         {
1844             WCHAR sep = *p;
1845             *p = 0;
1846             if (!SetCurrentDirectoryW( spec ))
1847             {
1848                 *p = sep;  /* Restore the original spec */
1849                 return FALSE;
1850             }
1851             spec = p + 1;
1852         }
1853     }
1854
1855     TRACE( "mask=%s\n", debugstr_w(spec) );
1856
1857     if (idLBox && ((hwnd = GetDlgItem( hDlg, idLBox )) != 0))
1858     {
1859         if (attrib == DDL_DRIVES) attrib |= DDL_EXCLUSIVE;
1860
1861         SENDMSG( combo ? CB_RESETCONTENT : LB_RESETCONTENT, 0, 0 );
1862         if (attrib & DDL_DIRECTORY)
1863         {
1864             if (!(attrib & DDL_EXCLUSIVE))
1865             {
1866                 SENDMSG( combo ? CB_DIR : LB_DIR,
1867                          attrib & ~(DDL_DIRECTORY | DDL_DRIVES),
1868                          (LPARAM)spec );
1869             }
1870             SENDMSG( combo ? CB_DIR : LB_DIR,
1871                    (attrib & (DDL_DIRECTORY | DDL_DRIVES)) | DDL_EXCLUSIVE,
1872                    (LPARAM)any );
1873         }
1874         else
1875         {
1876             SENDMSG( combo ? CB_DIR : LB_DIR, attrib, (LPARAM)spec );
1877         }
1878     }
1879
1880     /* Convert path specification to uppercase */
1881     if (spec) CharUpperW(spec);
1882
1883     if (idStatic && ((hwnd = GetDlgItem( hDlg, idStatic )) != 0))
1884     {
1885         WCHAR temp[MAX_PATH];
1886         GetCurrentDirectoryW( sizeof(temp)/sizeof(WCHAR), temp );
1887         CharLowerW( temp );
1888         /* Can't use PostMessage() here, because the string is on the stack */
1889         SetDlgItemTextW( hDlg, idStatic, temp );
1890     }
1891
1892     if (orig_spec && (spec != orig_spec))
1893     {
1894         /* Update the original file spec */
1895         WCHAR *p = spec;
1896         while ((*orig_spec++ = *p++));
1897     }
1898
1899     return TRUE;
1900 #undef SENDMSG
1901 }
1902
1903
1904 /**********************************************************************
1905  *          DIALOG_DlgDirListA
1906  *
1907  * Helper function for DlgDirList*A
1908  */
1909 static INT DIALOG_DlgDirListA( HWND hDlg, LPSTR spec, INT idLBox,
1910                                INT idStatic, UINT attrib, BOOL combo )
1911 {
1912     if (spec)
1913     {
1914         INT ret, len = MultiByteToWideChar( CP_ACP, 0, spec, -1, NULL, 0 );
1915         LPWSTR specW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
1916         MultiByteToWideChar( CP_ACP, 0, spec, -1, specW, len );
1917         ret = DIALOG_DlgDirListW( hDlg, specW, idLBox, idStatic, attrib, combo );
1918         WideCharToMultiByte( CP_ACP, 0, specW, -1, spec, 0x7fffffff, NULL, NULL );
1919         HeapFree( GetProcessHeap(), 0, specW );
1920         return ret;
1921     }
1922     return DIALOG_DlgDirListW( hDlg, NULL, idLBox, idStatic, attrib, combo );
1923 }
1924
1925
1926 /**********************************************************************
1927  *              DlgDirSelectExA (USER32.@)
1928  */
1929 BOOL WINAPI DlgDirSelectExA( HWND hwnd, LPSTR str, INT len, INT id )
1930 {
1931     return DIALOG_DlgDirSelect( hwnd, (LPWSTR)str, len, id, FALSE, FALSE );
1932 }
1933
1934
1935 /**********************************************************************
1936  *              DlgDirSelectExW (USER32.@)
1937  */
1938 BOOL WINAPI DlgDirSelectExW( HWND hwnd, LPWSTR str, INT len, INT id )
1939 {
1940     return DIALOG_DlgDirSelect( hwnd, str, len, id, TRUE, FALSE );
1941 }
1942
1943
1944 /**********************************************************************
1945  *              DlgDirSelectComboBoxExA (USER32.@)
1946  */
1947 BOOL WINAPI DlgDirSelectComboBoxExA( HWND hwnd, LPSTR str, INT len,
1948                                          INT id )
1949 {
1950     return DIALOG_DlgDirSelect( hwnd, (LPWSTR)str, len, id, FALSE, TRUE );
1951 }
1952
1953
1954 /**********************************************************************
1955  *              DlgDirSelectComboBoxExW (USER32.@)
1956  */
1957 BOOL WINAPI DlgDirSelectComboBoxExW( HWND hwnd, LPWSTR str, INT len,
1958                                          INT id)
1959 {
1960     return DIALOG_DlgDirSelect( hwnd, str, len, id, TRUE, TRUE );
1961 }
1962
1963
1964 /**********************************************************************
1965  *              DlgDirListA (USER32.@)
1966  */
1967 INT WINAPI DlgDirListA( HWND hDlg, LPSTR spec, INT idLBox,
1968                             INT idStatic, UINT attrib )
1969 {
1970     return DIALOG_DlgDirListA( hDlg, spec, idLBox, idStatic, attrib, FALSE );
1971 }
1972
1973
1974 /**********************************************************************
1975  *              DlgDirListW (USER32.@)
1976  */
1977 INT WINAPI DlgDirListW( HWND hDlg, LPWSTR spec, INT idLBox,
1978                             INT idStatic, UINT attrib )
1979 {
1980     return DIALOG_DlgDirListW( hDlg, spec, idLBox, idStatic, attrib, FALSE );
1981 }
1982
1983
1984 /**********************************************************************
1985  *              DlgDirListComboBoxA (USER32.@)
1986  */
1987 INT WINAPI DlgDirListComboBoxA( HWND hDlg, LPSTR spec, INT idCBox,
1988                                     INT idStatic, UINT attrib )
1989 {
1990     return DIALOG_DlgDirListA( hDlg, spec, idCBox, idStatic, attrib, TRUE );
1991 }
1992
1993
1994 /**********************************************************************
1995  *              DlgDirListComboBoxW (USER32.@)
1996  */
1997 INT WINAPI DlgDirListComboBoxW( HWND hDlg, LPWSTR spec, INT idCBox,
1998                                     INT idStatic, UINT attrib )
1999 {
2000     return DIALOG_DlgDirListW( hDlg, spec, idCBox, idStatic, attrib, TRUE );
2001 }