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