windows/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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  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/winuser16.h"
  38 #include "wine/unicode.h"
  39 #include "controls.h"
  40 #include "win.h"
  41 #include "winpos.h"
  42 #include "user.h"
  43 #include "wine/debug.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(dialog);
  46
  47
  48   /* Dialog control information */
  49 typedef struct
  50 {
  51     DWORD      style;
  52     DWORD      exStyle;
  53     DWORD      helpId;
  54     INT16      x;
  55     INT16      y;
  56     INT16      cx;
  57     INT16      cy;
  58     UINT       id;
  59     LPCWSTR    className;
  60     LPCWSTR    windowName;
  61     LPCVOID    data;
  62 } DLG_CONTROL_INFO;
  63
  64   /* Dialog template */
  65 typedef struct
  66 {
  67     DWORD      style;
  68     DWORD      exStyle;
  69     DWORD      helpId;
  70     UINT16     nbItems;
  71     INT16      x;
  72     INT16      y;
  73     INT16      cx;
  74     INT16      cy;
  75     LPCWSTR    menuName;
  76     LPCWSTR    className;
  77     LPCWSTR    caption;
  78     INT16      pointSize;
  79     WORD       weight;
  80     BOOL       italic;
  81     LPCWSTR    faceName;
  82     BOOL       dialogEx;
  83 } DLG_TEMPLATE;
  84
  85   /* Radio button group */
  86 typedef struct
  87 {
  88     UINT firstID;
  89     UINT lastID;
  90     UINT checkID;
  91 } RADIOGROUP;
  92
  93
  94 /*********************************************************************
  95  * dialog class descriptor
  96  */
  97 const struct builtin_class_descr DIALOG_builtin_class =
  98 {
  99     DIALOG_CLASS_ATOMA,  /* name */
 100     CS_SAVEBITS | CS_DBLCLKS, /* style  */
 101     DefDlgProcA,        /* procA */
 102     DefDlgProcW,        /* procW */
 103     DLGWINDOWEXTRA,     /* extra */
 104     IDC_ARROW,          /* cursor */
 105     0                   /* brush */
 106 };
 107
 108
 109 /***********************************************************************
 110  *           DIALOG_EnableOwner
 111  *
 112  * Helper function for modal dialogs to enable again the
 113  * owner of the dialog box.
 114  */
 115 void DIALOG_EnableOwner( HWND hOwner )
 116 {
 117     /* Owner must be a top-level window */
 118     if (hOwner)
 119         hOwner = GetAncestor( hOwner, GA_ROOT );
 120     if (!hOwner) return;
 121     EnableWindow( hOwner, TRUE );
 122 }
 123
 124
 125 /***********************************************************************
 126  *           DIALOG_DisableOwner
 127  *
 128  * Helper function for modal dialogs to disable the
 129  * owner of the dialog box. Returns TRUE if owner was enabled.
 130  */
 131 BOOL DIALOG_DisableOwner( HWND hOwner )
 132 {
 133     /* Owner must be a top-level window */
 134     if (hOwner)
 135         hOwner = GetAncestor( hOwner, GA_ROOT );
 136     if (!hOwner) return FALSE;
 137     if (IsWindowEnabled( hOwner ))
 138     {
 139         EnableWindow( hOwner, FALSE );
 140         return TRUE;
 141     }
 142     else
 143         return FALSE;
 144 }
 145
 146 /***********************************************************************
 147  *           DIALOG_GetCharSize
 148  *
 149  * Despite most of MSDN insisting that the horizontal base unit is
 150  * tmAveCharWidth it isn't.  Knowledge base article Q145994
 151  * "HOWTO: Calculate Dialog Units When Not Using the System Font",
 152  * says that we should take the average of the 52 English upper and lower
 153  * case characters.
 154  */
 155 BOOL DIALOG_GetCharSize( HDC hDC, HFONT hFont, SIZE * pSize )
 156 {
 157     HFONT hFontPrev = 0;
 158     const char *alphabet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";
 159     SIZE sz;
 160     TEXTMETRICA tm;
 161
 162     if(!hDC) return FALSE;
 163
 164     if(hFont) hFontPrev = SelectObject(hDC, hFont);
 165     if(!GetTextMetricsA(hDC, &tm)) return FALSE;
 166     if(!GetTextExtentPointA(hDC, alphabet, 52, &sz)) return FALSE;
 167
 168     pSize->cy = tm.tmHeight;
 169     pSize->cx = (sz.cx / 26 + 1) / 2;
 170
 171     if (hFontPrev) SelectObject(hDC, hFontPrev);
 172
 173     TRACE("dlg base units: %ld x %ld\n", pSize->cx, pSize->cy);
 174     return TRUE;
 175 }
 176
 177
 178 /***********************************************************************
 179  *           DIALOG_GetControl32
 180  *
 181  * Return the class and text of the control pointed to by ptr,
 182  * fill the header structure and return a pointer to the next control.
 183  */
 184 static const WORD *DIALOG_GetControl32( const WORD *p, DLG_CONTROL_INFO *info,
 185                                         BOOL dialogEx )
 186 {
 187     if (dialogEx)
 188     {
 189         info->helpId  = GET_DWORD(p); p += 2;
 190         info->exStyle = GET_DWORD(p); p += 2;
 191         info->style   = GET_DWORD(p); p += 2;
 192     }
 193     else
 194     {
 195         info->helpId  = 0;
 196         info->style   = GET_DWORD(p); p += 2;
 197         info->exStyle = GET_DWORD(p); p += 2;
 198     }
 199     info->x       = GET_WORD(p); p++;
 200     info->y       = GET_WORD(p); p++;
 201     info->cx      = GET_WORD(p); p++;
 202     info->cy      = GET_WORD(p); p++;
 203
 204     if (dialogEx)
 205     {
 206         /* id is a DWORD for DIALOGEX */
 207         info->id = GET_DWORD(p);
 208         p += 2;
 209     }
 210     else
 211     {
 212         info->id = GET_WORD(p);
 213         p++;
 214     }
 215
 216     if (GET_WORD(p) == 0xffff)
 217     {
 218         static const WCHAR class_names[6][10] =
 219         {
 220             { 'B','u','t','t','o','n', },             /* 0x80 */
 221             { 'E','d','i','t', },                     /* 0x81 */
 222             { 'S','t','a','t','i','c', },             /* 0x82 */
 223             { 'L','i','s','t','B','o','x', },         /* 0x83 */
 224             { 'S','c','r','o','l','l','B','a','r', }, /* 0x84 */
 225             { 'C','o','m','b','o','B','o','x', }      /* 0x85 */
 226         };
 227         WORD id = GET_WORD(p+1);
 228         /* Windows treats dialog control class ids 0-5 same way as 0x80-0x85 */
 229         if ((id >= 0x80) && (id <= 0x85)) id -= 0x80;
 230         if (id <= 5)
 231             info->className = class_names[id];
 232         else
 233         {
 234             info->className = NULL;
 235             ERR("Unknown built-in class id %04x\n", id );
 236         }
 237         p += 2;
 238     }
 239     else
 240     {
 241         info->className = (LPCWSTR)p;
 242         p += strlenW( info->className ) + 1;
 243     }
 244
 245     if (GET_WORD(p) == 0xffff)  /* Is it an integer id? */
 246     {
 247         info->windowName = (LPCWSTR)(UINT)GET_WORD(p + 1);
 248         p += 2;
 249     }
 250     else
 251     {
 252         info->windowName = (LPCWSTR)p;
 253         p += strlenW( info->windowName ) + 1;
 254     }
 255
 256     TRACE("    %s %s %d, %d, %d, %d, %d, %08lx, %08lx, %08lx\n",
 257           debugstr_w( info->className ), debugstr_w( info->windowName ),
 258           info->id, info->x, info->y, info->cx, info->cy,
 259           info->style, info->exStyle, info->helpId );
 260
 261     if (GET_WORD(p))
 262     {
 263         if (TRACE_ON(dialog))
 264         {
 265             WORD i, count = GET_WORD(p) / sizeof(WORD);
 266             TRACE("  BEGIN\n");
 267             TRACE("    ");
 268             for (i = 0; i < count; i++) TRACE( "%04x,", GET_WORD(p+i+1) );
 269             TRACE("\n");
 270             TRACE("  END\n" );
 271         }
 272         info->data = p + 1;
 273         p += GET_WORD(p) / sizeof(WORD);
 274     }
 275     else info->data = NULL;
 276     p++;
 277
 278     /* Next control is on dword boundary */
 279     return (const WORD *)((((int)p) + 3) & ~3);
 280 }
 281
 282
 283 /***********************************************************************
 284  *           DIALOG_CreateControls32
 285  *
 286  * Create the control windows for a dialog.
 287  */
 288 static BOOL DIALOG_CreateControls32( HWND hwnd, LPCSTR template, const DLG_TEMPLATE *dlgTemplate,
 289                                      HINSTANCE hInst, BOOL unicode )
 290 {
 291     DIALOGINFO *dlgInfo = DIALOG_get_info( hwnd, TRUE );
 292     DLG_CONTROL_INFO info;
 293     HWND hwndCtrl, hwndDefButton = 0;
 294     INT items = dlgTemplate->nbItems;
 295
 296     TRACE(" BEGIN\n" );
 297     while (items--)
 298     {
 299         template = (LPCSTR)DIALOG_GetControl32( (WORD *)template, &info,
 300                                                 dlgTemplate->dialogEx );
 301         /* Is this it? */
 302         if (info.style & WS_BORDER)
 303         {
 304             info.style &= ~WS_BORDER;
 305             info.exStyle |= WS_EX_CLIENTEDGE;
 306         }
 307         if (unicode)
 308         {
 309             hwndCtrl = CreateWindowExW( info.exStyle | WS_EX_NOPARENTNOTIFY,
 310                                         info.className, info.windowName,
 311                                         info.style | WS_CHILD,
 312                                         MulDiv(info.x, dlgInfo->xBaseUnit, 4),
 313                                         MulDiv(info.y, dlgInfo->yBaseUnit, 8),
 314                                         MulDiv(info.cx, dlgInfo->xBaseUnit, 4),
 315                                         MulDiv(info.cy, dlgInfo->yBaseUnit, 8),
 316                                         hwnd, (HMENU)info.id,
 317                                         hInst, (LPVOID)info.data );
 318         }
 319         else
 320         {
 321             LPSTR class = (LPSTR)info.className;
 322             LPSTR caption = (LPSTR)info.windowName;
 323
 324             if (HIWORD(class))
 325             {
 326                 DWORD len = WideCharToMultiByte( CP_ACP, 0, info.className, -1, NULL, 0, NULL, NULL );
 327                 class = HeapAlloc( GetProcessHeap(), 0, len );
 328                 WideCharToMultiByte( CP_ACP, 0, info.className, -1, class, len, NULL, NULL );
 329             }
 330             if (HIWORD(caption))
 331             {
 332                 DWORD len = WideCharToMultiByte( CP_ACP, 0, info.windowName, -1, NULL, 0, NULL, NULL );
 333                 caption = HeapAlloc( GetProcessHeap(), 0, len );
 334                 WideCharToMultiByte( CP_ACP, 0, info.windowName, -1, caption, len, NULL, NULL );
 335             }
 336             hwndCtrl = CreateWindowExA( info.exStyle | WS_EX_NOPARENTNOTIFY,
 337                                         class, caption, info.style | WS_CHILD,
 338                                         MulDiv(info.x, dlgInfo->xBaseUnit, 4),
 339                                         MulDiv(info.y, dlgInfo->yBaseUnit, 8),
 340                                         MulDiv(info.cx, dlgInfo->xBaseUnit, 4),
 341                                         MulDiv(info.cy, dlgInfo->yBaseUnit, 8),
 342                                         hwnd, (HMENU)info.id,
 343                                         hInst, (LPVOID)info.data );
 344             if (HIWORD(class)) HeapFree( GetProcessHeap(), 0, class );
 345             if (HIWORD(caption)) HeapFree( GetProcessHeap(), 0, caption );
 346         }
 347         if (!hwndCtrl)
 348         {
 349             if (dlgTemplate->style & DS_NOFAILCREATE) continue;
 350             return FALSE;
 351         }
 352
 353             /* Send initialisation messages to the control */
 354         if (dlgInfo->hUserFont) SendMessageA( hwndCtrl, WM_SETFONT,
 355                                              (WPARAM)dlgInfo->hUserFont, 0 );
 356         if (SendMessageA(hwndCtrl, WM_GETDLGCODE, 0, 0) & DLGC_DEFPUSHBUTTON)
 357         {
 358               /* If there's already a default push-button, set it back */
 359               /* to normal and use this one instead. */
 360             if (hwndDefButton)
 361                 SendMessageA( hwndDefButton, BM_SETSTYLE, BS_PUSHBUTTON, FALSE );
 362             hwndDefButton = hwndCtrl;
 363             dlgInfo->idResult = GetWindowLongA( hwndCtrl, GWL_ID );
 364         }
 365     }
 366     TRACE(" END\n" );
 367     return TRUE;
 368 }
 369
 370
 371 /***********************************************************************
 372  *           DIALOG_ParseTemplate32
 373  *
 374  * Fill a DLG_TEMPLATE structure from the dialog template, and return
 375  * a pointer to the first control.
 376  */
 377 static LPCSTR DIALOG_ParseTemplate32( LPCSTR template, DLG_TEMPLATE * result )
 378 {
 379     const WORD *p = (const WORD *)template;
 380
 381     result->style = GET_DWORD(p); p += 2;
 382     if (result->style == 0xffff0001)  /* DIALOGEX resource */
 383     {
 384         result->dialogEx = TRUE;
 385         result->helpId   = GET_DWORD(p); p += 2;
 386         result->exStyle  = GET_DWORD(p); p += 2;
 387         result->style    = GET_DWORD(p); p += 2;
 388     }
 389     else
 390     {
 391         result->dialogEx = FALSE;
 392         result->helpId   = 0;
 393         result->exStyle  = GET_DWORD(p); p += 2;
 394     }
 395     result->nbItems = GET_WORD(p); p++;
 396     result->x       = GET_WORD(p); p++;
 397     result->y       = GET_WORD(p); p++;
 398     result->cx      = GET_WORD(p); p++;
 399     result->cy      = GET_WORD(p); p++;
 400     TRACE("DIALOG%s %d, %d, %d, %d, %ld\n",
 401            result->dialogEx ? "EX" : "", result->x, result->y,
 402            result->cx, result->cy, result->helpId );
 403     TRACE(" STYLE 0x%08lx\n", result->style );
 404     TRACE(" EXSTYLE 0x%08lx\n", result->exStyle );
 405
 406     /* Get the menu name */
 407
 408     switch(GET_WORD(p))
 409     {
 410     case 0x0000:
 411         result->menuName = NULL;
 412         p++;
 413         break;
 414     case 0xffff:
 415         result->menuName = (LPCWSTR)(UINT)GET_WORD( p + 1 );
 416         p += 2;
 417         TRACE(" MENU %04x\n", LOWORD(result->menuName) );
 418         break;
 419     default:
 420         result->menuName = (LPCWSTR)p;
 421         TRACE(" MENU %s\n", debugstr_w(result->menuName) );
 422         p += strlenW( result->menuName ) + 1;
 423         break;
 424     }
 425
 426     /* Get the class name */
 427
 428     switch(GET_WORD(p))
 429     {
 430     case 0x0000:
 431         result->className = DIALOG_CLASS_ATOMW;
 432         p++;
 433         break;
 434     case 0xffff:
 435         result->className = (LPCWSTR)(UINT)GET_WORD( p + 1 );
 436         p += 2;
 437         TRACE(" CLASS %04x\n", LOWORD(result->className) );
 438         break;
 439     default:
 440         result->className = (LPCWSTR)p;
 441         TRACE(" CLASS %s\n", debugstr_w( result->className ));
 442         p += strlenW( result->className ) + 1;
 443         break;
 444     }
 445
 446     /* Get the window caption */
 447
 448     result->caption = (LPCWSTR)p;
 449     p += strlenW( result->caption ) + 1;
 450     TRACE(" CAPTION %s\n", debugstr_w( result->caption ) );
 451
 452     /* Get the font name */
 453
 454     if (result->style & DS_SETFONT)
 455     {
 456         result->pointSize = GET_WORD(p);
 457         p++;
 458         if (result->dialogEx)
 459         {
 460             result->weight = GET_WORD(p); p++;
 461             result->italic = LOBYTE(GET_WORD(p)); p++;
 462         }
 463         else
 464         {
 465             result->weight = FW_DONTCARE;
 466             result->italic = FALSE;
 467         }
 468         result->faceName = (LPCWSTR)p;
 469         p += strlenW( result->faceName ) + 1;
 470         TRACE(" FONT %d, %s, %d, %s\n",
 471               result->pointSize, debugstr_w( result->faceName ),
 472               result->weight, result->italic ? "TRUE" : "FALSE" );
 473     }
 474
 475     /* First control is on dword boundary */
 476     return (LPCSTR)((((int)p) + 3) & ~3);
 477 }
 478
 479
 480 /***********************************************************************
 481  *           DIALOG_CreateIndirect
 482  *       Creates a dialog box window
 483  *
 484  *       modal = TRUE if we are called from a modal dialog box.
 485  *       (it's more compatible to do it here, as under Windows the owner
 486  *       is never disabled if the dialog fails because of an invalid template)
 487  */
 488 static HWND DIALOG_CreateIndirect( HINSTANCE hInst, LPCVOID dlgTemplate,
 489                                    HWND owner, DLGPROC dlgProc, LPARAM param,
 490                                    BOOL unicode, BOOL modal )
 491 {
 492     HWND hwnd;
 493     RECT rect;
 494     DLG_TEMPLATE template;
 495     DIALOGINFO * dlgInfo = NULL;
 496     DWORD units = GetDialogBaseUnits();
 497     BOOL ownerEnabled = TRUE;
 498     HMENU hMenu = 0;
 499     HFONT hUserFont = 0;
 500     UINT flags = 0;
 501     UINT xBaseUnit = LOWORD(units);
 502     UINT yBaseUnit = HIWORD(units);
 503
 504       /* Parse dialog template */
 505
 506     if (!dlgTemplate) return 0;
 507     dlgTemplate = DIALOG_ParseTemplate32( dlgTemplate, &template );
 508
 509       /* Load menu */
 510
 511     if (template.menuName) hMenu = LoadMenuW( hInst, template.menuName );
 512
 513       /* Create custom font if needed */
 514
 515     if (template.style & DS_SETFONT)
 516     {
 517           /* We convert the size to pixels and then make it -ve.  This works
 518            * for both +ve and -ve template.pointSize */
 519         HDC dc;
 520         int pixels;
 521         dc = GetDC(0);
 522         pixels = MulDiv(template.pointSize, GetDeviceCaps(dc , LOGPIXELSY), 72);
 523         hUserFont = CreateFontW( -pixels, 0, 0, 0, template.weight,
 524                                           template.italic, FALSE, FALSE, DEFAULT_CHARSET, 0, 0,
 525                                           PROOF_QUALITY, FF_DONTCARE,
 526                                           template.faceName );
 527         if (hUserFont)
 528         {
 529             SIZE charSize;
 530             if (DIALOG_GetCharSize( dc, hUserFont, &charSize ))
 531             {
 532                 xBaseUnit = charSize.cx;
 533                 yBaseUnit = charSize.cy;
 534             }
 535         }
 536         ReleaseDC(0, dc);
 537         TRACE("units = %d,%d\n", xBaseUnit, yBaseUnit );
 538     }
 539
 540     /* Create dialog main window */
 541
 542     rect.left = rect.top = 0;
 543     rect.right = MulDiv(template.cx, xBaseUnit, 4);
 544     rect.bottom =  MulDiv(template.cy, yBaseUnit, 8);
 545     if (template.style & WS_CHILD)
 546         template.style &= ~(WS_CAPTION|WS_SYSMENU);
 547     if (template.style & DS_MODALFRAME)
 548         template.exStyle |= WS_EX_DLGMODALFRAME;
 549     AdjustWindowRectEx( &rect, template.style, (hMenu != 0), template.exStyle );
 550     rect.right -= rect.left;
 551     rect.bottom -= rect.top;
 552
 553     if (template.x == CW_USEDEFAULT16)
 554     {
 555         rect.left = rect.top = CW_USEDEFAULT;
 556     }
 557     else
 558     {
 559         if (template.style & DS_CENTER)
 560         {
 561             rect.left = (GetSystemMetrics(SM_CXSCREEN) - rect.right) / 2;
 562             rect.top = (GetSystemMetrics(SM_CYSCREEN) - rect.bottom) / 2;
 563         }
 564         else
 565         {
 566             rect.left += MulDiv(template.x, xBaseUnit, 4);
 567             rect.top += MulDiv(template.y, yBaseUnit, 8);
 568         }
 569         if ( !(template.style & WS_CHILD) )
 570         {
 571             INT dX, dY;
 572
 573             if( !(template.style & DS_ABSALIGN) )
 574                 ClientToScreen( owner, (POINT *)&rect );
 575
 576             /* try to fit it into the desktop */
 577
 578             if( (dX = rect.left + rect.right + GetSystemMetrics(SM_CXDLGFRAME)
 579                  - GetSystemMetrics(SM_CXSCREEN)) > 0 ) rect.left -= dX;
 580             if( (dY = rect.top + rect.bottom + GetSystemMetrics(SM_CYDLGFRAME)
 581                  - GetSystemMetrics(SM_CYSCREEN)) > 0 ) rect.top -= dY;
 582             if( rect.left < 0 ) rect.left = 0;
 583             if( rect.top < 0 ) rect.top = 0;
 584         }
 585     }
 586
 587     if (modal)
 588     {
 589         ownerEnabled = DIALOG_DisableOwner( owner );
 590         if (ownerEnabled) flags |= DF_OWNERENABLED;
 591     }
 592
 593     if (unicode)
 594     {
 595         hwnd = CreateWindowExW(template.exStyle, template.className, template.caption,
 596                                template.style & ~WS_VISIBLE,
 597                                rect.left, rect.top, rect.right, rect.bottom,
 598                                owner, hMenu, hInst, NULL );
 599     }
 600     else
 601     {
 602         LPSTR class = (LPSTR)template.className;
 603         LPSTR caption = (LPSTR)template.caption;
 604
 605         if (HIWORD(class))
 606         {
 607             DWORD len = WideCharToMultiByte( CP_ACP, 0, template.className, -1, NULL, 0, NULL, NULL );
 608             class = HeapAlloc( GetProcessHeap(), 0, len );
 609             WideCharToMultiByte( CP_ACP, 0, template.className, -1, class, len, NULL, NULL );
 610         }
 611         if (HIWORD(caption))
 612         {
 613             DWORD len = WideCharToMultiByte( CP_ACP, 0, template.caption, -1, NULL, 0, NULL, NULL );
 614             caption = HeapAlloc( GetProcessHeap(), 0, len );
 615             WideCharToMultiByte( CP_ACP, 0, template.caption, -1, caption, len, NULL, NULL );
 616         }
 617         hwnd = CreateWindowExA(template.exStyle, class, caption,
 618                                template.style & ~WS_VISIBLE,
 619                                rect.left, rect.top, rect.right, rect.bottom,
 620                                owner, hMenu, hInst, NULL );
 621         if (HIWORD(class)) HeapFree( GetProcessHeap(), 0, class );
 622         if (HIWORD(caption)) HeapFree( GetProcessHeap(), 0, caption );
 623     }
 624
 625     if (!hwnd)
 626     {
 627         if (hUserFont) DeleteObject( hUserFont );
 628         if (hMenu) DestroyMenu( hMenu );
 629         if (modal && (flags & DF_OWNERENABLED)) DIALOG_EnableOwner(owner);
 630         return 0;
 631     }
 632
 633     /* moved this from the top of the method to here as DIALOGINFO structure
 634     will be valid only after WM_CREATE message has been handled in DefDlgProc
 635     All the members of the structure get filled here using temp variables */
 636     dlgInfo = DIALOG_get_info( hwnd, TRUE );
 637     dlgInfo->hwndFocus   = 0;
 638     dlgInfo->hUserFont   = hUserFont;
 639     dlgInfo->hMenu       = hMenu;
 640     dlgInfo->xBaseUnit   = xBaseUnit;
 641     dlgInfo->yBaseUnit   = yBaseUnit;
 642     dlgInfo->idResult    = 0;
 643     dlgInfo->flags       = flags;
 644     dlgInfo->hDialogHeap = 0;
 645
 646     if (template.helpId) SetWindowContextHelpId( hwnd, template.helpId );
 647
 648     if (unicode) SetWindowLongW( hwnd, DWL_DLGPROC, (LONG)dlgProc );
 649     else SetWindowLongA( hwnd, DWL_DLGPROC, (LONG)dlgProc );
 650
 651     if (dlgInfo->hUserFont)
 652         SendMessageA( hwnd, WM_SETFONT, (WPARAM)dlgInfo->hUserFont, 0 );
 653
 654     /* Create controls */
 655
 656     if (DIALOG_CreateControls32( hwnd, dlgTemplate, &template, hInst, unicode ))
 657     {
 658         HWND hwndPreInitFocus;
 659
 660         /* Send initialisation messages and set focus */
 661
 662         dlgInfo->hwndFocus = GetNextDlgTabItem( hwnd, 0, FALSE );
 663
 664         hwndPreInitFocus = GetFocus();
 665         if (SendMessageA( hwnd, WM_INITDIALOG, (WPARAM)dlgInfo->hwndFocus, param ))
 666         {
 667             /* check where the focus is again,
 668              * some controls status might have changed in WM_INITDIALOG */
 669             dlgInfo->hwndFocus = GetNextDlgTabItem( hwnd, 0, FALSE);
 670             if( dlgInfo->hwndFocus )
 671                 SetFocus( dlgInfo->hwndFocus );
 672         }
 673         else
 674         {
 675             /* If the dlgproc has returned FALSE (indicating handling of keyboard focus)
 676                but the focus has not changed, set the focus where we expect it. */
 677             if ((GetFocus() == hwndPreInitFocus) &&
 678                 (GetWindowLongW( hwnd, GWL_STYLE ) & WS_VISIBLE))
 679             {
 680                 dlgInfo->hwndFocus = GetNextDlgTabItem( hwnd, 0, FALSE);
 681                 if( dlgInfo->hwndFocus )
 682                     SetFocus( dlgInfo->hwndFocus );
 683             }
 684         }
 685
 686         if (template.style & WS_VISIBLE && !(GetWindowLongW( hwnd, GWL_STYLE ) & WS_VISIBLE))
 687         {
 688            ShowWindow( hwnd, SW_SHOWNORMAL );   /* SW_SHOW doesn't always work */
 689         }
 690         return hwnd;
 691     }
 692     if (modal && ownerEnabled) DIALOG_EnableOwner(owner);
 693     if( IsWindow(hwnd) ) DestroyWindow( hwnd );
 694     return 0;
 695 }
 696
 697
 698 /***********************************************************************
 699  *              CreateDialogParamA (USER32.@)
 700  */
 701 HWND WINAPI CreateDialogParamA( HINSTANCE hInst, LPCSTR name, HWND owner,
 702                                 DLGPROC dlgProc, LPARAM param )
 703 {
 704     HRSRC hrsrc;
 705     LPCDLGTEMPLATEA ptr;
 706
 707     if (!(hrsrc = FindResourceA( hInst, name, (LPSTR)RT_DIALOG ))) return 0;
 708     if (!(ptr = (LPCDLGTEMPLATEA)LoadResource(hInst, hrsrc))) return 0;
 709     return CreateDialogIndirectParamA( hInst, ptr, owner, dlgProc, param );
 710 }
 711
 712
 713 /***********************************************************************
 714  *              CreateDialogParamW (USER32.@)
 715  */
 716 HWND WINAPI CreateDialogParamW( HINSTANCE hInst, LPCWSTR name, HWND owner,
 717                                 DLGPROC dlgProc, LPARAM param )
 718 {
 719     HRSRC hrsrc;
 720     LPCDLGTEMPLATEA ptr;
 721
 722     if (!(hrsrc = FindResourceW( hInst, name, (LPWSTR)RT_DIALOG ))) return 0;
 723     if (!(ptr = (LPCDLGTEMPLATEW)LoadResource(hInst, hrsrc))) return 0;
 724     return CreateDialogIndirectParamW( hInst, ptr, owner, dlgProc, param );
 725 }
 726
 727
 728 /***********************************************************************
 729  *              CreateDialogIndirectParamAorW (USER32.@)
 730  */
 731 HWND WINAPI CreateDialogIndirectParamAorW( HINSTANCE hInst, LPCVOID dlgTemplate,
 732                                            HWND owner, DLGPROC dlgProc, LPARAM param,
 733                                            DWORD flags )
 734 {
 735     return DIALOG_CreateIndirect( hInst, dlgTemplate, owner, dlgProc, param, !flags, FALSE );
 736 }
 737
 738 /***********************************************************************
 739  *              CreateDialogIndirectParamA (USER32.@)
 740  */
 741 HWND WINAPI CreateDialogIndirectParamA( HINSTANCE hInst, LPCDLGTEMPLATEA dlgTemplate,
 742                                         HWND owner, DLGPROC dlgProc, LPARAM param )
 743 {
 744     return CreateDialogIndirectParamAorW( hInst, dlgTemplate, owner, dlgProc, param, 2 );
 745 }
 746
 747 /***********************************************************************
 748  *              CreateDialogIndirectParamW (USER32.@)
 749  */
 750 HWND WINAPI CreateDialogIndirectParamW( HINSTANCE hInst, LPCDLGTEMPLATEW dlgTemplate,
 751                                         HWND owner, DLGPROC dlgProc, LPARAM param )
 752 {
 753     return CreateDialogIndirectParamAorW( hInst, dlgTemplate, owner, dlgProc, param, 0 );
 754 }
 755
 756
 757 /***********************************************************************
 758  *           DIALOG_DoDialogBox
 759  */
 760 INT DIALOG_DoDialogBox( HWND hwnd, HWND owner )
 761 {
 762     DIALOGINFO * dlgInfo;
 763     MSG msg;
 764     INT retval;
 765     HWND ownerMsg = GetAncestor( owner, GA_ROOT );
 766
 767     if (!(dlgInfo = DIALOG_get_info( hwnd, FALSE ))) return -1;
 768
 769     if (!(dlgInfo->flags & DF_END)) /* was EndDialog called in WM_INITDIALOG ? */
 770     {
 771         ShowWindow( hwnd, SW_SHOW );
 772         for (;;)
 773         {
 774             if (!(GetWindowLongW( hwnd, GWL_STYLE ) & DS_NOIDLEMSG))
 775             {
 776                 if (!PeekMessageW( &msg, 0, 0, 0, PM_REMOVE ))
 777                 {
 778                     /* No message present -> send ENTERIDLE and wait */
 779                     SendMessageW( ownerMsg, WM_ENTERIDLE, MSGF_DIALOGBOX, (LPARAM)hwnd );
 780                     if (!GetMessageW( &msg, 0, 0, 0 )) break;
 781                 }
 782             }
 783             else if (!GetMessageW( &msg, 0, 0, 0 )) break;
 784
 785             if (!IsWindow( hwnd )) return -1;
 786             if (!(dlgInfo->flags & DF_END) && !IsDialogMessageW( hwnd, &msg))
 787             {
 788                 TranslateMessage( &msg );
 789                 DispatchMessageW( &msg );
 790             }
 791             if (dlgInfo->flags & DF_END) break;
 792         }
 793     }
 794     if (dlgInfo->flags & DF_OWNERENABLED) DIALOG_EnableOwner( owner );
 795     retval = dlgInfo->idResult;
 796     DestroyWindow( hwnd );
 797     return retval;
 798 }
 799
 800
 801 /***********************************************************************
 802  *              DialogBoxParamA (USER32.@)
 803  */
 804 INT_PTR WINAPI DialogBoxParamA( HINSTANCE hInst, LPCSTR name,
 805                                 HWND owner, DLGPROC dlgProc, LPARAM param )
 806 {
 807     HWND hwnd;
 808     HRSRC hrsrc;
 809     LPCDLGTEMPLATEA ptr;
 810
 811     if (!(hrsrc = FindResourceA( hInst, name, (LPSTR)RT_DIALOG ))) return 0;
 812     if (!(ptr = (LPCDLGTEMPLATEA)LoadResource(hInst, hrsrc))) return 0;
 813     hwnd = DIALOG_CreateIndirect( hInst, ptr, owner, dlgProc, param, FALSE, TRUE );
 814     if (hwnd) return DIALOG_DoDialogBox( hwnd, owner );
 815     return -1;
 816 }
 817
 818
 819 /***********************************************************************
 820  *              DialogBoxParamW (USER32.@)
 821  */
 822 INT_PTR WINAPI DialogBoxParamW( HINSTANCE hInst, LPCWSTR name,
 823                                 HWND owner, DLGPROC dlgProc, LPARAM param )
 824 {
 825     HWND hwnd;
 826     HRSRC hrsrc;
 827     LPCDLGTEMPLATEW ptr;
 828
 829     if (!(hrsrc = FindResourceW( hInst, name, (LPWSTR)RT_DIALOG ))) return 0;
 830     if (!(ptr = (LPCDLGTEMPLATEW)LoadResource(hInst, hrsrc))) return 0;
 831     hwnd = DIALOG_CreateIndirect( hInst, ptr, owner, dlgProc, param, TRUE, TRUE );
 832     if (hwnd) return DIALOG_DoDialogBox( hwnd, owner );
 833     return -1;
 834 }
 835
 836
 837 /***********************************************************************
 838  *              DialogBoxIndirectParamAorW (USER32.@)
 839  */
 840 INT_PTR WINAPI DialogBoxIndirectParamAorW( HINSTANCE hInstance, LPCVOID template,
 841                                            HWND owner, DLGPROC dlgProc,
 842                                            LPARAM param, DWORD flags )
 843 {
 844     HWND hwnd = DIALOG_CreateIndirect( hInstance, template, owner, dlgProc, param, !flags, TRUE );
 845     if (hwnd) return DIALOG_DoDialogBox( hwnd, owner );
 846     return -1;
 847 }
 848
 849 /***********************************************************************
 850  *              DialogBoxIndirectParamA (USER32.@)
 851  */
 852 INT_PTR WINAPI DialogBoxIndirectParamA(HINSTANCE hInstance, LPCDLGTEMPLATEA template,
 853                                        HWND owner, DLGPROC dlgProc, LPARAM param )
 854 {
 855     return DialogBoxIndirectParamAorW( hInstance, template, owner, dlgProc, param, 2 );
 856 }
 857
 858
 859 /***********************************************************************
 860  *              DialogBoxIndirectParamW (USER32.@)
 861  */
 862 INT_PTR WINAPI DialogBoxIndirectParamW(HINSTANCE hInstance, LPCDLGTEMPLATEW template,
 863                                        HWND owner, DLGPROC dlgProc, LPARAM param )
 864 {
 865     return DialogBoxIndirectParamAorW( hInstance, template, owner, dlgProc, param, 0 );
 866 }
 867
 868 /***********************************************************************
 869  *              EndDialog (USER32.@)
 870  */
 871 BOOL WINAPI EndDialog( HWND hwnd, INT_PTR retval )
 872 {
 873     BOOL wasEnabled = TRUE;
 874     DIALOGINFO * dlgInfo;
 875     HWND owner;
 876
 877     TRACE("%p %d\n", hwnd, retval );
 878
 879     if (!(dlgInfo = DIALOG_get_info( hwnd, FALSE )))
 880     {
 881         ERR("got invalid window handle (%p); buggy app !?\n", hwnd);
 882         return FALSE;
 883     }
 884     dlgInfo->idResult = retval;
 885     dlgInfo->flags |= DF_END;
 886     wasEnabled = (dlgInfo->flags & DF_OWNERENABLED);
 887
 888     if (wasEnabled && (owner = GetWindow( hwnd, GW_OWNER )))
 889         DIALOG_EnableOwner( owner );
 890
 891     /* Windows sets the focus to the dialog itself in EndDialog */
 892
 893     if (IsChild(hwnd, GetFocus()))
 894        SetFocus( hwnd );
 895
 896     /* Don't have to send a ShowWindow(SW_HIDE), just do
 897        SetWindowPos with SWP_HIDEWINDOW as done in Windows */
 898
 899     SetWindowPos(hwnd, NULL, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE
 900                  | SWP_NOZORDER | SWP_NOACTIVATE | SWP_HIDEWINDOW);
 901
 902     if (hwnd == GetActiveWindow()) WINPOS_ActivateOtherWindow( hwnd );
 903
 904     /* unblock dialog loop */
 905     PostMessageA(hwnd, WM_NULL, 0, 0);
 906     return TRUE;
 907 }
 908
 909
 910 /***********************************************************************
 911  *           DIALOG_IsAccelerator
 912  */
 913 static BOOL DIALOG_IsAccelerator( HWND hwnd, HWND hwndDlg, WPARAM wParam )
 914 {
 915     HWND hwndControl = hwnd;
 916     HWND hwndNext;
 917     INT dlgCode;
 918     WCHAR buffer[128];
 919
 920     do
 921     {
 922         DWORD style = GetWindowLongW( hwndControl, GWL_STYLE );
 923         if ((style & (WS_VISIBLE | WS_DISABLED)) == WS_VISIBLE)
 924         {
 925             dlgCode = SendMessageA( hwndControl, WM_GETDLGCODE, 0, 0 );
 926             if ( (dlgCode & (DLGC_BUTTON | DLGC_STATIC)) &&
 927                  GetWindowTextW( hwndControl, buffer, sizeof(buffer)/sizeof(WCHAR) ))
 928             {
 929                 /* find the accelerator key */
 930                 LPWSTR p = buffer - 2;
 931
 932                 do
 933                 {
 934                     p = strchrW( p + 2, '&' );
 935                 }
 936                 while (p != NULL && p[1] == '&');
 937
 938                 /* and check if it's the one we're looking for */
 939                 if (p != NULL && toupperW( p[1] ) == toupperW( wParam ) )
 940                 {
 941                     if ((dlgCode & DLGC_STATIC) || (style & 0x0f) == BS_GROUPBOX )
 942                     {
 943                         /* set focus to the control */
 944                         SendMessageA( hwndDlg, WM_NEXTDLGCTL, (WPARAM)hwndControl, 1);
 945                         /* and bump it on to next */
 946                         SendMessageA( hwndDlg, WM_NEXTDLGCTL, 0, 0);
 947                     }
 948                     else if (dlgCode & DLGC_BUTTON)
 949                     {
 950                         /* send BM_CLICK message to the control */
 951                         SendMessageA( hwndControl, BM_CLICK, 0, 0 );
 952                     }
 953                     return TRUE;
 954                 }
 955             }
 956             hwndNext = GetWindow( hwndControl, GW_CHILD );
 957         }
 958         else hwndNext = 0;
 959
 960         if (!hwndNext) hwndNext = GetWindow( hwndControl, GW_HWNDNEXT );
 961
 962         while (!hwndNext && hwndControl)
 963         {
 964             hwndControl = GetParent( hwndControl );
 965             if (hwndControl == hwndDlg)
 966             {
 967                 if(hwnd==hwndDlg)   /* prevent endless loop */
 968                 {
 969                     hwndNext=hwnd;
 970                     break;
 971                 }
 972                 hwndNext = GetWindow( hwndDlg, GW_CHILD );
 973             }
 974             else
 975                 hwndNext = GetWindow( hwndControl, GW_HWNDNEXT );
 976         }
 977         hwndControl = hwndNext;
 978     }
 979     while (hwndControl && (hwndControl != hwnd));
 980
 981     return FALSE;
 982 }
 983
 984 /***********************************************************************
 985  *           DIALOG_FindMsgDestination
 986  *
 987  * The messages that IsDialogMessage sends may not go to the dialog
 988  * calling IsDialogMessage if that dialog is a child, and it has the
 989  * DS_CONTROL style set.
 990  * We propagate up until we hit one that does not have DS_CONTROL, or
 991  * whose parent is not a dialog.
 992  *
 993  * This is undocumented behaviour.
 994  */
 995 static HWND DIALOG_FindMsgDestination( HWND hwndDlg )
 996 {
 997     while (GetWindowLongA(hwndDlg, GWL_STYLE) & DS_CONTROL)
 998     {
 999         WND *pParent;
1000         HWND hParent = GetParent(hwndDlg);
1001         if (!hParent) break;
1002
1003         pParent = WIN_FindWndPtr(hParent);
1004         if (!pParent) break;
1005
1006         if (!(pParent->flags & WIN_ISDIALOG))
1007         {
1008             WIN_ReleaseWndPtr(pParent);
1009             break;
1010         }
1011         WIN_ReleaseWndPtr(pParent);
1012
1013         hwndDlg = hParent;
1014     }
1015
1016     return hwndDlg;
1017 }
1018
1019 /***********************************************************************
1020  *              DIALOG_FixOneChildOnChangeFocus
1021  *
1022  * Callback helper for DIALOG_FixChildrenOnChangeFocus
1023  */
1024
1025 static BOOL CALLBACK DIALOG_FixOneChildOnChangeFocus (HWND hwndChild,
1026         LPARAM lParam)
1027 {
1028     /* If a default pushbutton then no longer default */
1029     if (DLGC_DEFPUSHBUTTON & SendMessageW (hwndChild, WM_GETDLGCODE, 0, 0))
1030         SendMessageW (hwndChild, BM_SETSTYLE, BS_PUSHBUTTON, TRUE);
1031     return TRUE;
1032 }
1033
1034 /***********************************************************************
1035  *              DIALOG_FixChildrenOnChangeFocus
1036  *
1037  * Following the change of focus that occurs for example after handling
1038  * a WM_KEYDOWN VK_TAB in IsDialogMessage, some tidying of the dialog's
1039  * children may be required.
1040  */
1041 static void DIALOG_FixChildrenOnChangeFocus (HWND hwndDlg, HWND hwndNext)
1042 {
1043     INT dlgcode_next = SendMessageW (hwndNext, WM_GETDLGCODE, 0, 0);
1044     /* INT dlgcode_dlg  = SendMessageW (hwndDlg, WM_GETDLGCODE, 0, 0); */
1045     /* Windows does ask for this.  I don't know why yet */
1046
1047     EnumChildWindows (hwndDlg, DIALOG_FixOneChildOnChangeFocus, 0);
1048
1049     /* If the button that is getting the focus WAS flagged as the default
1050      * pushbutton then ask the dialog what it thinks the default is and
1051      * set that in the default style.
1052      */
1053     if (dlgcode_next & DLGC_DEFPUSHBUTTON)
1054     {
1055         DWORD def_id = SendMessageW (hwndDlg, DM_GETDEFID, 0, 0);
1056         if (HIWORD(def_id) == DC_HASDEFID)
1057         {
1058             HWND hwndDef;
1059             def_id = LOWORD(def_id);
1060             hwndDef = GetDlgItem (hwndDlg, def_id);
1061             if (hwndDef)
1062             {
1063                 INT dlgcode_def = SendMessageW (hwndDef, WM_GETDLGCODE, 0, 0);
1064                 /* I know that if it is a button then it should already be a
1065                  * UNDEFPUSHBUTTON, since we have just told the buttons to
1066                  * change style.  But maybe they ignored our request
1067                  */
1068                 if ((dlgcode_def & DLGC_BUTTON) &&
1069                         (dlgcode_def &  DLGC_UNDEFPUSHBUTTON))
1070                 {
1071                     SendMessageW (hwndDef, BM_SETSTYLE, BS_DEFPUSHBUTTON, TRUE);
1072                 }
1073             }
1074         }
1075     }
1076     else
1077     {
1078         SendMessageW (hwndNext, BM_SETSTYLE, BS_DEFPUSHBUTTON, TRUE);
1079         /* I wonder why it doesn't send a DM_SETDEFID */
1080     }
1081 }
1082
1083 /***********************************************************************
1084  *              IsDialogMessageW (USER32.@)
1085  */
1086 BOOL WINAPI IsDialogMessageW( HWND hwndDlg, LPMSG msg )
1087 {
1088     INT dlgCode = 0;
1089
1090     if (CallMsgFilterW( msg, MSGF_DIALOGBOX )) return TRUE;
1091
1092     hwndDlg = WIN_GetFullHandle( hwndDlg );
1093     if ((hwndDlg != msg->hwnd) && !IsChild( hwndDlg, msg->hwnd )) return FALSE;
1094
1095     hwndDlg = DIALOG_FindMsgDestination(hwndDlg);
1096
1097     switch(msg->message)
1098     {
1099     case WM_KEYDOWN:
1100         dlgCode = SendMessageW( msg->hwnd, WM_GETDLGCODE, msg->wParam, (LPARAM)msg );
1101         if (dlgCode & DLGC_WANTMESSAGE) break;
1102
1103         switch(msg->wParam)
1104         {
1105         case VK_TAB:
1106             if (!(dlgCode & DLGC_WANTTAB))
1107             {
1108                 BOOL fIsDialog = TRUE;
1109                 WND *pWnd = WIN_GetPtr( hwndDlg );
1110
1111                 if (pWnd && pWnd != WND_OTHER_PROCESS)
1112                 {
1113                     fIsDialog = (pWnd->flags & WIN_ISDIALOG) != 0;
1114                     WIN_ReleasePtr(pWnd);
1115                 }
1116
1117                 /* I am not sure under which circumstances the TAB is handled
1118                  * each way.  All I do know is that it does not always simply
1119                  * send WM_NEXTDLGCTL.  (Personally I have never yet seen it
1120                  * do so but I presume someone has)
1121                  */
1122                 if (fIsDialog)
1123                     SendMessageW( hwndDlg, WM_NEXTDLGCTL, (GetKeyState(VK_SHIFT) & 0x8000), 0 );
1124                 else
1125                 {
1126                     /* It would appear that GetNextDlgTabItem can handle being
1127                      * passed hwndDlg rather than NULL but that is undocumented
1128                      * so let's do it properly
1129                      */
1130                     HWND hwndFocus = GetFocus();
1131                     HWND hwndNext = GetNextDlgTabItem (hwndDlg,
1132                             hwndFocus == hwndDlg ? NULL : hwndFocus,
1133                             GetKeyState (VK_SHIFT) & 0x8000);
1134                     if (hwndNext)
1135                     {
1136                         dlgCode = SendMessageW (hwndNext, WM_GETDLGCODE,
1137                                 msg->wParam, (LPARAM)msg);
1138                         if (dlgCode & DLGC_HASSETSEL)
1139                         {
1140                             INT maxlen = 1 + SendMessageW (hwndNext, WM_GETTEXTLENGTH, 0, 0);
1141                             WCHAR *buffer = HeapAlloc (GetProcessHeap(), 0, maxlen * sizeof(WCHAR));
1142                             if (buffer)
1143                             {
1144                                 INT length;
1145                                 SendMessageW (hwndNext, WM_GETTEXT, maxlen, (LPARAM) buffer);
1146                                 length = strlenW (buffer);
1147                                 HeapFree (GetProcessHeap(), 0, buffer);
1148                                 SendMessageW (hwndNext, EM_SETSEL, 0, length);
1149                             }
1150                         }
1151                         SetFocus (hwndNext);
1152                         DIALOG_FixChildrenOnChangeFocus (hwndDlg, hwndNext);
1153                     }
1154                     else
1155                         return FALSE;
1156                 }
1157                 return TRUE;
1158             }
1159             break;
1160
1161         case VK_RIGHT:
1162         case VK_DOWN:
1163         case VK_LEFT:
1164         case VK_UP:
1165             if (!(dlgCode & DLGC_WANTARROWS))
1166             {
1167                 BOOL fPrevious = (msg->wParam == VK_LEFT || msg->wParam == VK_UP);
1168                 HWND hwndNext = GetNextDlgGroupItem (hwndDlg, GetFocus(), fPrevious );
1169                 SendMessageW( hwndDlg, WM_NEXTDLGCTL, (WPARAM)hwndNext, 1 );
1170                 return TRUE;
1171             }
1172             break;
1173
1174         case VK_CANCEL:
1175         case VK_ESCAPE:
1176             SendMessageW( hwndDlg, WM_COMMAND, IDCANCEL, (LPARAM)GetDlgItem( hwndDlg, IDCANCEL ) );
1177             return TRUE;
1178
1179         case VK_EXECUTE:
1180         case VK_RETURN:
1181             {
1182                 DWORD dw;
1183                 if ((GetFocus() == msg->hwnd) &&
1184                     (SendMessageW (msg->hwnd, WM_GETDLGCODE, 0, 0) & DLGC_DEFPUSHBUTTON))
1185                 {
1186                     SendMessageW (hwndDlg, WM_COMMAND, MAKEWPARAM (GetDlgCtrlID(msg->hwnd),BN_CLICKED), (LPARAM)msg->hwnd);
1187                 }
1188                 else if (DC_HASDEFID == HIWORD(dw = SendMessageW (hwndDlg, DM_GETDEFID, 0, 0)))
1189                 {
1190                     SendMessageW( hwndDlg, WM_COMMAND, MAKEWPARAM( LOWORD(dw), BN_CLICKED ),
1191                                     (LPARAM)GetDlgItem(hwndDlg, LOWORD(dw)));
1192                 }
1193                 else
1194                 {
1195                     SendMessageW( hwndDlg, WM_COMMAND, IDOK, (LPARAM)GetDlgItem( hwndDlg, IDOK ) );
1196
1197                 }
1198             }
1199             return TRUE;
1200         }
1201         break;
1202
1203     case WM_CHAR:
1204         /* FIXME Under what circumstances does WM_GETDLGCODE get sent?
1205          * It does NOT get sent in the test program I have
1206          */
1207         dlgCode = SendMessageW( msg->hwnd, WM_GETDLGCODE, msg->wParam, (LPARAM)msg );
1208         if (dlgCode & (DLGC_WANTCHARS|DLGC_WANTMESSAGE)) break;
1209         if (msg->wParam == '\t' && (dlgCode & DLGC_WANTTAB)) break;
1210         /* drop through */
1211
1212     case WM_SYSCHAR:
1213         if (DIALOG_IsAccelerator( WIN_GetFullHandle(msg->hwnd), hwndDlg, msg->wParam ))
1214         {
1215             /* don't translate or dispatch */
1216             return TRUE;
1217         }
1218         break;
1219     }
1220
1221     TranslateMessage( msg );
1222     DispatchMessageW( msg );
1223     return TRUE;
1224 }
1225
1226
1227 /***********************************************************************
1228  *              GetDlgCtrlID (USER32.@)
1229  */
1230 INT WINAPI GetDlgCtrlID( HWND hwnd )
1231 {
1232     return GetWindowLongW( hwnd, GWL_ID );
1233 }
1234
1235
1236 /***********************************************************************
1237  *              GetDlgItem (USER32.@)
1238  */
1239 HWND WINAPI GetDlgItem( HWND hwndDlg, INT id )
1240 {
1241     int i;
1242     HWND *list = WIN_ListChildren( hwndDlg );
1243     HWND ret = 0;
1244
1245     if (!list) return 0;
1246
1247     for (i = 0; list[i]; i++) if (GetWindowLongW( list[i], GWL_ID ) == id) break;
1248     ret = list[i];
1249     HeapFree( GetProcessHeap(), 0, list );
1250     return ret;
1251 }
1252
1253
1254 /*******************************************************************
1255  *              SendDlgItemMessageA (USER32.@)
1256  */
1257 LRESULT WINAPI SendDlgItemMessageA( HWND hwnd, INT id, UINT msg,
1258                                       WPARAM wParam, LPARAM lParam )
1259 {
1260     HWND hwndCtrl = GetDlgItem( hwnd, id );
1261     if (hwndCtrl) return SendMessageA( hwndCtrl, msg, wParam, lParam );
1262     else return 0;
1263 }
1264
1265
1266 /*******************************************************************
1267  *              SendDlgItemMessageW (USER32.@)
1268  */
1269 LRESULT WINAPI SendDlgItemMessageW( HWND hwnd, INT id, UINT msg,
1270                                       WPARAM wParam, LPARAM lParam )
1271 {
1272     HWND hwndCtrl = GetDlgItem( hwnd, id );
1273     if (hwndCtrl) return SendMessageW( hwndCtrl, msg, wParam, lParam );
1274     else return 0;
1275 }
1276
1277
1278 /*******************************************************************
1279  *              SetDlgItemTextA (USER32.@)
1280  */
1281 BOOL WINAPI SetDlgItemTextA( HWND hwnd, INT id, LPCSTR lpString )
1282 {
1283     return SendDlgItemMessageA( hwnd, id, WM_SETTEXT, 0, (LPARAM)lpString );
1284 }
1285
1286
1287 /*******************************************************************
1288  *              SetDlgItemTextW (USER32.@)
1289  */
1290 BOOL WINAPI SetDlgItemTextW( HWND hwnd, INT id, LPCWSTR lpString )
1291 {
1292     return SendDlgItemMessageW( hwnd, id, WM_SETTEXT, 0, (LPARAM)lpString );
1293 }
1294
1295
1296 /***********************************************************************
1297  *              GetDlgItemTextA (USER32.@)
1298  */
1299 INT WINAPI GetDlgItemTextA( HWND hwnd, INT id, LPSTR str, UINT len )
1300 {
1301     return (INT)SendDlgItemMessageA( hwnd, id, WM_GETTEXT,
1302                                          len, (LPARAM)str );
1303 }
1304
1305
1306 /***********************************************************************
1307  *              GetDlgItemTextW (USER32.@)
1308  */
1309 INT WINAPI GetDlgItemTextW( HWND hwnd, INT id, LPWSTR str, UINT len )
1310 {
1311     return (INT)SendDlgItemMessageW( hwnd, id, WM_GETTEXT,
1312                                          len, (LPARAM)str );
1313 }
1314
1315
1316 /*******************************************************************
1317  *              SetDlgItemInt (USER32.@)
1318  */
1319 BOOL WINAPI SetDlgItemInt( HWND hwnd, INT id, UINT value,
1320                              BOOL fSigned )
1321 {
1322     char str[20];
1323
1324     if (fSigned) sprintf( str, "%d", (INT)value );
1325     else sprintf( str, "%u", value );
1326     SendDlgItemMessageA( hwnd, id, WM_SETTEXT, 0, (LPARAM)str );
1327     return TRUE;
1328 }
1329
1330
1331 /***********************************************************************
1332  *              GetDlgItemInt (USER32.@)
1333  */
1334 UINT WINAPI GetDlgItemInt( HWND hwnd, INT id, BOOL *translated,
1335                                BOOL fSigned )
1336 {
1337     char str[30];
1338     char * endptr;
1339     long result = 0;
1340
1341     if (translated) *translated = FALSE;
1342     if (!SendDlgItemMessageA(hwnd, id, WM_GETTEXT, sizeof(str), (LPARAM)str))
1343         return 0;
1344     if (fSigned)
1345     {
1346         result = strtol( str, &endptr, 10 );
1347         if (!endptr || (endptr == str))  /* Conversion was unsuccessful */
1348             return 0;
1349         if (((result == LONG_MIN) || (result == LONG_MAX)) && (errno==ERANGE))
1350             return 0;
1351     }
1352     else
1353     {
1354         result = strtoul( str, &endptr, 10 );
1355         if (!endptr || (endptr == str))  /* Conversion was unsuccessful */
1356             return 0;
1357         if ((result == ULONG_MAX) && (errno == ERANGE)) return 0;
1358     }
1359     if (translated) *translated = TRUE;
1360     return (UINT)result;
1361 }
1362
1363
1364 /***********************************************************************
1365  *              CheckDlgButton (USER32.@)
1366  */
1367 BOOL WINAPI CheckDlgButton( HWND hwnd, INT id, UINT check )
1368 {
1369     SendDlgItemMessageA( hwnd, id, BM_SETCHECK, check, 0 );
1370     return TRUE;
1371 }
1372
1373
1374 /***********************************************************************
1375  *              IsDlgButtonChecked (USER32.@)
1376  */
1377 UINT WINAPI IsDlgButtonChecked( HWND hwnd, UINT id )
1378 {
1379     return (UINT)SendDlgItemMessageA( hwnd, id, BM_GETCHECK, 0, 0 );
1380 }
1381
1382
1383 /***********************************************************************
1384  *           CheckRB
1385  *
1386  * Callback function used to check/uncheck radio buttons that fall
1387  * within a specific range of IDs.
1388  */
1389 static BOOL CALLBACK CheckRB(HWND hwndChild, LPARAM lParam)
1390 {
1391     LONG lChildID = GetWindowLongA(hwndChild, GWL_ID);
1392     RADIOGROUP *lpRadioGroup = (RADIOGROUP *) lParam;
1393
1394     if ((lChildID >= lpRadioGroup->firstID) &&
1395         (lChildID <= lpRadioGroup->lastID))
1396     {
1397         if (lChildID == lpRadioGroup->checkID)
1398         {
1399             SendMessageA(hwndChild, BM_SETCHECK, BST_CHECKED, 0);
1400         }
1401         else
1402         {
1403             SendMessageA(hwndChild, BM_SETCHECK, BST_UNCHECKED, 0);
1404         }
1405     }
1406
1407     return TRUE;
1408 }
1409
1410
1411 /***********************************************************************
1412  *              CheckRadioButton (USER32.@)
1413  */
1414 BOOL WINAPI CheckRadioButton( HWND hwndDlg, UINT firstID,
1415                               UINT lastID, UINT checkID )
1416 {
1417     RADIOGROUP radioGroup;
1418
1419     radioGroup.firstID = firstID;
1420     radioGroup.lastID = lastID;
1421     radioGroup.checkID = checkID;
1422
1423     return EnumChildWindows(hwndDlg, (WNDENUMPROC)CheckRB,
1424                             (LPARAM)&radioGroup);
1425 }
1426
1427
1428 /***********************************************************************
1429  *              GetDialogBaseUnits (USER.243)
1430  *              GetDialogBaseUnits (USER32.@)
1431  */
1432 DWORD WINAPI GetDialogBaseUnits(void)
1433 {
1434     static DWORD units;
1435
1436     if (!units)
1437     {
1438         HDC hdc;
1439         SIZE size;
1440
1441         if ((hdc = GetDC(0)))
1442         {
1443             if (DIALOG_GetCharSize( hdc, 0, &size )) units = MAKELONG( size.cx, size.cy );
1444             ReleaseDC( 0, hdc );
1445         }
1446         TRACE("base units = %d,%d\n", LOWORD(units), HIWORD(units) );
1447     }
1448     return units;
1449 }
1450
1451
1452 /***********************************************************************
1453  *              MapDialogRect (USER32.@)
1454  */
1455 BOOL WINAPI MapDialogRect( HWND hwnd, LPRECT rect )
1456 {
1457     DIALOGINFO * dlgInfo;
1458     if (!(dlgInfo = DIALOG_get_info( hwnd, FALSE ))) return FALSE;
1459     rect->left   = MulDiv(rect->left, dlgInfo->xBaseUnit, 4);
1460     rect->right  = MulDiv(rect->right, dlgInfo->xBaseUnit, 4);
1461     rect->top    = MulDiv(rect->top, dlgInfo->yBaseUnit, 8);
1462     rect->bottom = MulDiv(rect->bottom, dlgInfo->yBaseUnit, 8);
1463     return TRUE;
1464 }
1465
1466
1467 /***********************************************************************
1468  *              GetNextDlgGroupItem (USER32.@)
1469  *
1470  * Corrections to MSDN documentation
1471  *
1472  * (Under Windows 2000 at least, where hwndDlg is not actually a dialog)
1473  * 1. hwndCtrl can be hwndDlg in which case it behaves as for NULL
1474  * 2. Prev of NULL or hwndDlg fails
1475  */
1476 HWND WINAPI GetNextDlgGroupItem( HWND hwndDlg, HWND hwndCtrl, BOOL fPrevious )
1477 {
1478     HWND hwnd, hwndNext, retvalue, hwndLastGroup = 0;
1479     BOOL fLooped=FALSE;
1480     BOOL fSkipping=FALSE;
1481
1482     hwndDlg = WIN_GetFullHandle( hwndDlg );
1483     hwndCtrl = WIN_GetFullHandle( hwndCtrl );
1484
1485     if (hwndDlg == hwndCtrl) hwndCtrl = NULL;
1486     if (!hwndCtrl && fPrevious) return 0;
1487
1488     if (hwndCtrl)
1489     {
1490         if (!IsChild (hwndDlg, hwndCtrl)) return 0;
1491     }
1492     else
1493     {
1494         /* No ctrl specified -> start from the beginning */
1495         if (!(hwndCtrl = GetWindow( hwndDlg, GW_CHILD ))) return 0;
1496         /* MSDN is wrong. fPrevious does not result in the last child */
1497
1498         /* Maybe that first one is valid.  If so then we don't want to skip it*/
1499         if ((GetWindowLongW( hwndCtrl, GWL_STYLE ) & (WS_VISIBLE|WS_DISABLED)) == WS_VISIBLE)
1500         {
1501             return hwndCtrl;
1502         }
1503     }
1504
1505     /* Always go forward around the group and list of controls; for the
1506      * previous control keep track; for the next break when you find one
1507      */
1508     retvalue = hwndCtrl;
1509     hwnd = hwndCtrl;
1510     while (hwndNext = GetWindow (hwnd, GW_HWNDNEXT),
1511            1)
1512     {
1513         while (!hwndNext)
1514         {
1515             /* Climb out until there is a next sibling of the ancestor or we
1516              * reach the top (in which case we loop back to the start)
1517              */
1518             if (hwndDlg == GetParent (hwnd))
1519             {
1520                 /* Wrap around to the beginning of the list, within the same
1521                  * group. (Once only)
1522                  */
1523                 if (fLooped) goto end;
1524                 fLooped = TRUE;
1525                 hwndNext = GetWindow (hwndDlg, GW_CHILD);
1526             }
1527             else
1528             {
1529                 hwnd = GetParent (hwnd);
1530                 hwndNext = GetWindow (hwnd, GW_HWNDNEXT);
1531             }
1532         }
1533         hwnd = hwndNext;
1534
1535         /* Wander down the leading edge of controlparents */
1536         while ( (GetWindowLongW (hwnd, GWL_EXSTYLE) & WS_EX_CONTROLPARENT) &&
1537                 ((GetWindowLongW (hwnd, GWL_STYLE) & (WS_VISIBLE | WS_DISABLED)) == WS_VISIBLE) &&
1538                 (hwndNext = GetWindow (hwnd, GW_CHILD)))
1539             hwnd = hwndNext;
1540         /* Question.  If the control is a control parent but either has no
1541          * children or is not visible/enabled then if it has a WS_GROUP does
1542          * it count?  For that matter does it count anyway?
1543          * I believe it doesn't count.
1544          */
1545
1546         if ((GetWindowLongW (hwnd, GWL_STYLE) & WS_GROUP))
1547         {
1548             hwndLastGroup = hwnd;
1549             if (!fSkipping)
1550             {
1551                 /* Look for the beginning of the group */
1552                 fSkipping = TRUE;
1553             }
1554         }
1555
1556         if (hwnd == hwndCtrl)
1557         {
1558             if (!fSkipping) break;
1559             if (hwndLastGroup == hwnd) break;
1560             hwnd = hwndLastGroup;
1561             fSkipping = FALSE;
1562             fLooped = FALSE;
1563         }
1564
1565         if (!fSkipping &&
1566             (GetWindowLongW (hwnd, GWL_STYLE) & (WS_VISIBLE|WS_DISABLED)) ==
1567              WS_VISIBLE)
1568         {
1569             retvalue = hwnd;
1570             if (!fPrevious) break;
1571         }
1572     }
1573 end:
1574     return retvalue;
1575 }
1576
1577
1578 /***********************************************************************
1579  *           DIALOG_GetNextTabItem
1580  *
1581  * Recursive helper for GetNextDlgTabItem
1582  */
1583 static HWND DIALOG_GetNextTabItem( HWND hwndMain, HWND hwndDlg, HWND hwndCtrl, BOOL fPrevious )
1584 {
1585     LONG dsStyle;
1586     LONG exStyle;
1587     UINT wndSearch = fPrevious ? GW_HWNDPREV : GW_HWNDNEXT;
1588     HWND retWnd = 0;
1589     HWND hChildFirst = 0;
1590
1591     if(!hwndCtrl)
1592     {
1593         hChildFirst = GetWindow(hwndDlg,GW_CHILD);
1594         if(fPrevious) hChildFirst = GetWindow(hChildFirst,GW_HWNDLAST);
1595     }
1596     else if (IsChild( hwndMain, hwndCtrl ))
1597     {
1598         hChildFirst = GetWindow(hwndCtrl,wndSearch);
1599         if(!hChildFirst)
1600         {
1601             if(GetParent(hwndCtrl) != hwndMain)
1602                 /* i.e. if we are not at the top level of the recursion */
1603                 hChildFirst = GetWindow(GetParent(hwndCtrl),wndSearch);
1604             else
1605                 hChildFirst = GetWindow(hwndCtrl, fPrevious ? GW_HWNDLAST : GW_HWNDFIRST);
1606         }
1607     }
1608
1609     while(hChildFirst)
1610     {
1611         dsStyle = GetWindowLongA(hChildFirst,GWL_STYLE);
1612         exStyle = GetWindowLongA(hChildFirst,GWL_EXSTYLE);
1613         if( (exStyle & WS_EX_CONTROLPARENT) && (dsStyle & WS_VISIBLE) && !(dsStyle & WS_DISABLED))
1614         {
1615             HWND retWnd;
1616             retWnd = DIALOG_GetNextTabItem(hwndMain,hChildFirst,NULL,fPrevious );
1617             if (retWnd) return (retWnd);
1618         }
1619         else if( (dsStyle & WS_TABSTOP) && (dsStyle & WS_VISIBLE) && !(dsStyle & WS_DISABLED))
1620         {
1621             return (hChildFirst);
1622         }
1623         hChildFirst = GetWindow(hChildFirst,wndSearch);
1624     }
1625     if(hwndCtrl)
1626     {
1627         HWND hParent = GetParent(hwndCtrl);
1628         while(hParent)
1629         {
1630             if(hParent == hwndMain) break;
1631             retWnd = DIALOG_GetNextTabItem(hwndMain,GetParent(hParent),hParent,fPrevious );
1632             if(retWnd) break;
1633             hParent = GetParent(hParent);
1634         }
1635         if(!retWnd)
1636             retWnd = DIALOG_GetNextTabItem(hwndMain,hwndMain,NULL,fPrevious );
1637     }
1638     return retWnd ? retWnd : hwndCtrl;
1639 }
1640
1641 /***********************************************************************
1642  *              GetNextDlgTabItem (USER32.@)
1643  */
1644 HWND WINAPI GetNextDlgTabItem( HWND hwndDlg, HWND hwndCtrl,
1645                                    BOOL fPrevious )
1646 {
1647     hwndDlg = WIN_GetFullHandle( hwndDlg );
1648     hwndCtrl = WIN_GetFullHandle( hwndCtrl );
1649
1650     /* Undocumented but tested under Win2000 and WinME */
1651     if (hwndDlg == hwndCtrl) hwndCtrl = NULL;
1652
1653     /* Contrary to MSDN documentation, tested under Win2000 and WinME
1654      * NB GetLastError returns whatever was set before the function was
1655      * called.
1656      */
1657     if (!hwndCtrl && fPrevious) return 0;
1658
1659     return DIALOG_GetNextTabItem(hwndDlg,hwndDlg,hwndCtrl,fPrevious);
1660 }
1661
1662 /**********************************************************************
1663  *           DIALOG_DlgDirSelect
1664  *
1665  * Helper function for DlgDirSelect*
1666  */
1667 static BOOL DIALOG_DlgDirSelect( HWND hwnd, LPSTR str, INT len,
1668                                  INT id, BOOL unicode, BOOL combo )
1669 {
1670     char *buffer, *ptr;
1671     INT item, size;
1672     BOOL ret;
1673     HWND listbox = GetDlgItem( hwnd, id );
1674
1675     TRACE("%p '%s' %d\n", hwnd, str, id );
1676     if (!listbox) return FALSE;
1677
1678     item = SendMessageA(listbox, combo ? CB_GETCURSEL : LB_GETCURSEL, 0, 0 );
1679     if (item == LB_ERR) return FALSE;
1680     size = SendMessageA(listbox, combo ? CB_GETLBTEXTLEN : LB_GETTEXTLEN, 0, 0 );
1681     if (size == LB_ERR) return FALSE;
1682
1683     if (!(buffer = HeapAlloc( GetProcessHeap(), 0, size+1 ))) return FALSE;
1684
1685     SendMessageA( listbox, combo ? CB_GETLBTEXT : LB_GETTEXT, item, (LPARAM)buffer );
1686
1687     if ((ret = (buffer[0] == '[')))  /* drive or directory */
1688     {
1689         if (buffer[1] == '-')  /* drive */
1690         {
1691             buffer[3] = ':';
1692             buffer[4] = 0;
1693             ptr = buffer + 2;
1694         }
1695         else
1696         {
1697             buffer[strlen(buffer)-1] = '\\';
1698             ptr = buffer + 1;
1699         }
1700     }
1701     else ptr = buffer;
1702
1703     if (unicode)
1704     {
1705         if (len > 0 && !MultiByteToWideChar( CP_ACP, 0, ptr, -1, (LPWSTR)str, len ))
1706             ((LPWSTR)str)[len-1] = 0;
1707     }
1708     else lstrcpynA( str, ptr, len );
1709     HeapFree( GetProcessHeap(), 0, buffer );
1710     TRACE("Returning %d '%s'\n", ret, str );
1711     return ret;
1712 }
1713
1714
1715 /**********************************************************************
1716  *          DIALOG_DlgDirListW
1717  *
1718  * Helper function for DlgDirList*W
1719  */
1720 static INT DIALOG_DlgDirListW( HWND hDlg, LPWSTR spec, INT idLBox,
1721                                INT idStatic, UINT attrib, BOOL combo )
1722 {
1723     HWND hwnd;
1724     LPWSTR orig_spec = spec;
1725     WCHAR any[] = {'*','.','*',0};
1726
1727 #define SENDMSG(msg,wparam,lparam) \
1728     ((attrib & DDL_POSTMSGS) ? PostMessageW( hwnd, msg, wparam, lparam ) \
1729                              : SendMessageW( hwnd, msg, wparam, lparam ))
1730
1731     TRACE("%p %s %d %d %04x\n", hDlg, debugstr_w(spec), idLBox, idStatic, attrib );
1732
1733     /* If the path exists and is a directory, chdir to it */
1734     if (!spec || !spec[0] || SetCurrentDirectoryW( spec )) spec = any;
1735     else
1736     {
1737         WCHAR *p, *p2;
1738         p = spec;
1739         if ((p2 = strrchrW( p, '\\' ))) p = p2;
1740         if ((p2 = strrchrW( p, '/' ))) p = p2;
1741         if (p != spec)
1742         {
1743             WCHAR sep = *p;
1744             *p = 0;
1745             if (!SetCurrentDirectoryW( spec ))
1746             {
1747                 *p = sep;  /* Restore the original spec */
1748                 return FALSE;
1749             }
1750             spec = p + 1;
1751         }
1752     }
1753
1754     TRACE( "mask=%s\n", debugstr_w(spec) );
1755
1756     if (idLBox && ((hwnd = GetDlgItem( hDlg, idLBox )) != 0))
1757     {
1758         SENDMSG( combo ? CB_RESETCONTENT : LB_RESETCONTENT, 0, 0 );
1759         if (attrib & DDL_DIRECTORY)
1760         {
1761             if (!(attrib & DDL_EXCLUSIVE))
1762             {
1763                 if (SENDMSG( combo ? CB_DIR : LB_DIR,
1764                              attrib & ~(DDL_DIRECTORY | DDL_DRIVES),
1765                              (LPARAM)spec ) == LB_ERR)
1766                     return FALSE;
1767             }
1768             if (SENDMSG( combo ? CB_DIR : LB_DIR,
1769                        (attrib & (DDL_DIRECTORY | DDL_DRIVES)) | DDL_EXCLUSIVE,
1770                          (LPARAM)any ) == LB_ERR)
1771                 return FALSE;
1772         }
1773         else
1774         {
1775             if (SENDMSG( combo ? CB_DIR : LB_DIR, attrib,
1776                          (LPARAM)spec ) == LB_ERR)
1777                 return FALSE;
1778         }
1779     }
1780
1781     if (idStatic && ((hwnd = GetDlgItem( hDlg, idStatic )) != 0))
1782     {
1783         WCHAR temp[MAX_PATH];
1784         GetCurrentDirectoryW( sizeof(temp)/sizeof(WCHAR), temp );
1785         CharLowerW( temp );
1786         /* Can't use PostMessage() here, because the string is on the stack */
1787         SetDlgItemTextW( hDlg, idStatic, temp );
1788     }
1789
1790     if (orig_spec && (spec != orig_spec))
1791     {
1792         /* Update the original file spec */
1793         WCHAR *p = spec;
1794         while ((*orig_spec++ = *p++));
1795     }
1796
1797     return TRUE;
1798 #undef SENDMSG
1799 }
1800
1801
1802 /**********************************************************************
1803  *          DIALOG_DlgDirListA
1804  *
1805  * Helper function for DlgDirList*A
1806  */
1807 static INT DIALOG_DlgDirListA( HWND hDlg, LPSTR spec, INT idLBox,
1808                                INT idStatic, UINT attrib, BOOL combo )
1809 {
1810     if (spec)
1811     {
1812         INT ret, len = MultiByteToWideChar( CP_ACP, 0, spec, -1, NULL, 0 );
1813         LPWSTR specW = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) );
1814         MultiByteToWideChar( CP_ACP, 0, spec, -1, specW, len );
1815         ret = DIALOG_DlgDirListW( hDlg, specW, idLBox, idStatic, attrib, combo );
1816         WideCharToMultiByte( CP_ACP, 0, specW, -1, spec, 0x7fffffff, NULL, NULL );
1817         HeapFree( GetProcessHeap(), 0, specW );
1818         return ret;
1819     }
1820     return DIALOG_DlgDirListW( hDlg, NULL, idLBox, idStatic, attrib, combo );
1821 }
1822
1823
1824 /**********************************************************************
1825  *              DlgDirSelectExA (USER32.@)
1826  */
1827 BOOL WINAPI DlgDirSelectExA( HWND hwnd, LPSTR str, INT len, INT id )
1828 {
1829     return DIALOG_DlgDirSelect( hwnd, str, len, id, FALSE, FALSE );
1830 }
1831
1832
1833 /**********************************************************************
1834  *              DlgDirSelectExW (USER32.@)
1835  */
1836 BOOL WINAPI DlgDirSelectExW( HWND hwnd, LPWSTR str, INT len, INT id )
1837 {
1838     return DIALOG_DlgDirSelect( hwnd, (LPSTR)str, len, id, TRUE, FALSE );
1839 }
1840
1841
1842 /**********************************************************************
1843  *              DlgDirSelectComboBoxExA (USER32.@)
1844  */
1845 BOOL WINAPI DlgDirSelectComboBoxExA( HWND hwnd, LPSTR str, INT len,
1846                                          INT id )
1847 {
1848     return DIALOG_DlgDirSelect( hwnd, str, len, id, FALSE, TRUE );
1849 }
1850
1851
1852 /**********************************************************************
1853  *              DlgDirSelectComboBoxExW (USER32.@)
1854  */
1855 BOOL WINAPI DlgDirSelectComboBoxExW( HWND hwnd, LPWSTR str, INT len,
1856                                          INT id)
1857 {
1858     return DIALOG_DlgDirSelect( hwnd, (LPSTR)str, len, id, TRUE, TRUE );
1859 }
1860
1861
1862 /**********************************************************************
1863  *              DlgDirListA (USER32.@)
1864  */
1865 INT WINAPI DlgDirListA( HWND hDlg, LPSTR spec, INT idLBox,
1866                             INT idStatic, UINT attrib )
1867 {
1868     return DIALOG_DlgDirListA( hDlg, spec, idLBox, idStatic, attrib, FALSE );
1869 }
1870
1871
1872 /**********************************************************************
1873  *              DlgDirListW (USER32.@)
1874  */
1875 INT WINAPI DlgDirListW( HWND hDlg, LPWSTR spec, INT idLBox,
1876                             INT idStatic, UINT attrib )
1877 {
1878     return DIALOG_DlgDirListW( hDlg, spec, idLBox, idStatic, attrib, FALSE );
1879 }
1880
1881
1882 /**********************************************************************
1883  *              DlgDirListComboBoxA (USER32.@)
1884  */
1885 INT WINAPI DlgDirListComboBoxA( HWND hDlg, LPSTR spec, INT idCBox,
1886                                     INT idStatic, UINT attrib )
1887 {
1888     return DIALOG_DlgDirListA( hDlg, spec, idCBox, idStatic, attrib, TRUE );
1889 }
1890
1891
1892 /**********************************************************************
1893  *              DlgDirListComboBoxW (USER32.@)
1894  */
1895 INT WINAPI DlgDirListComboBoxW( HWND hDlg, LPWSTR spec, INT idCBox,
1896                                     INT idStatic, UINT attrib )
1897 {
1898     return DIALOG_DlgDirListW( hDlg, spec, idCBox, idStatic, attrib, TRUE );
1899 }