dlls/user32/exticon.c

   1 /*
   2  *      icon extracting
   3  *
   4  * taken and slightly changed from shell
   5  * this should replace the icon extraction code in shell32 and shell16 once
   6  * it needs a serious test for compliance with the native API
   7  *
   8  * Copyright 2000 Juergen Schmied
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  */
  24
  25 #include <stdlib.h>
  26 #include "user_private.h"
  27 #include "wine/debug.h"
  28
  29 WINE_DEFAULT_DEBUG_CHANNEL(icon);
  30
  31 #include "pshpack1.h"
  32
  33 typedef struct
  34 {
  35     BYTE        bWidth;          /* Width, in pixels, of the image      */
  36     BYTE        bHeight;         /* Height, in pixels, of the image     */
  37     BYTE        bColorCount;     /* Number of colors in image (0 if >=8bpp) */
  38     BYTE        bReserved;       /* Reserved ( must be 0)               */
  39     WORD        wPlanes;         /* Color Planes                        */
  40     WORD        wBitCount;       /* Bits per pixel                      */
  41     DWORD       dwBytesInRes;    /* How many bytes in this resource?    */
  42     DWORD       dwImageOffset;   /* Where in the file is this image?    */
  43 } icoICONDIRENTRY, *LPicoICONDIRENTRY;
  44
  45 typedef struct
  46 {
  47     WORD            idReserved;   /* Reserved (must be 0) */
  48     WORD            idType;       /* Resource Type (RES_ICON or RES_CURSOR) */
  49     WORD            idCount;      /* How many images */
  50     icoICONDIRENTRY idEntries[1]; /* An entry for each image (idCount of 'em) */
  51 } icoICONDIR, *LPicoICONDIR;
  52
  53 typedef struct
  54 {
  55     WORD offset;
  56     WORD length;
  57     WORD flags;
  58     WORD id;
  59     WORD handle;
  60     WORD usage;
  61 } NE_NAMEINFO;
  62
  63 typedef struct
  64 {
  65     WORD  type_id;
  66     WORD  count;
  67     DWORD resloader;
  68 } NE_TYPEINFO;
  69
  70 #define NE_RSCTYPE_ICON        0x8003
  71 #define NE_RSCTYPE_GROUP_ICON  0x800e
  72
  73 #include "poppack.h"
  74
  75 #if 0
  76 static void dumpIcoDirEntry ( LPicoICONDIRENTRY entry )
  77 {
  78         TRACE("width = 0x%08x height = 0x%08x\n", entry->bWidth, entry->bHeight);
  79         TRACE("colors = 0x%08x planes = 0x%08x\n", entry->bColorCount, entry->wPlanes);
  80         TRACE("bitcount = 0x%08x bytesinres = 0x%08lx offset = 0x%08lx\n",
  81         entry->wBitCount, entry->dwBytesInRes, entry->dwImageOffset);
  82 }
  83 static void dumpIcoDir ( LPicoICONDIR entry )
  84 {
  85         TRACE("type = 0x%08x count = 0x%08x\n", entry->idType, entry->idCount);
  86 }
  87 #endif
  88
  89 /**********************************************************************
  90  *  find_entry_by_id
  91  *
  92  * Find an entry by id in a resource directory
  93  * Copied from loader/pe_resource.c (FIXME: should use exported resource functions)
  94  */
  95 static const IMAGE_RESOURCE_DIRECTORY *find_entry_by_id( const IMAGE_RESOURCE_DIRECTORY *dir,
  96                                                          WORD id, const void *root )
  97 {
  98     const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
  99     int min, max, pos;
 100
 101     entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
 102     min = dir->NumberOfNamedEntries;
 103     max = min + dir->NumberOfIdEntries - 1;
 104     while (min <= max)
 105     {
 106         pos = (min + max) / 2;
 107         if (entry[pos].Id == id)
 108             return (const IMAGE_RESOURCE_DIRECTORY *)((const char *)root + entry[pos].OffsetToDirectory);
 109         if (entry[pos].Id > id) max = pos - 1;
 110         else min = pos + 1;
 111     }
 112     return NULL;
 113 }
 114
 115 /**********************************************************************
 116  *  find_entry_default
 117  *
 118  * Find a default entry in a resource directory
 119  * Copied from loader/pe_resource.c (FIXME: should use exported resource functions)
 120  */
 121 static const IMAGE_RESOURCE_DIRECTORY *find_entry_default( const IMAGE_RESOURCE_DIRECTORY *dir,
 122                                                            const void *root )
 123 {
 124     const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
 125     entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
 126     return (const IMAGE_RESOURCE_DIRECTORY *)((const char *)root + entry->OffsetToDirectory);
 127 }
 128
 129 /*************************************************************************
 130  *                              USER32_GetResourceTable
 131  */
 132 static DWORD USER32_GetResourceTable(LPBYTE peimage,DWORD pesize,LPBYTE *retptr)
 133 {
 134         IMAGE_DOS_HEADER        * mz_header;
 135
 136         TRACE("%p %p\n", peimage, retptr);
 137
 138         *retptr = NULL;
 139
 140         mz_header = (IMAGE_DOS_HEADER*) peimage;
 141
 142         if (mz_header->e_magic != IMAGE_DOS_SIGNATURE)
 143         {
 144           if (mz_header->e_cblp == 1)   /* .ICO file ? */
 145           {
 146             *retptr = (LPBYTE)-1;       /* ICONHEADER.idType, must be 1 */
 147             return 1;
 148           }
 149           else
 150             return 0; /* failed */
 151         }
 152         if (mz_header->e_lfanew >= pesize) {
 153             return 0; /* failed, happens with PKZIP DOS Exes for instance. */
 154         }
 155         if (*((DWORD*)(peimage + mz_header->e_lfanew)) == IMAGE_NT_SIGNATURE )
 156           return IMAGE_NT_SIGNATURE;
 157
 158         if (*((WORD*)(peimage + mz_header->e_lfanew)) == IMAGE_OS2_SIGNATURE )
 159         {
 160           IMAGE_OS2_HEADER      * ne_header;
 161
 162           ne_header = (IMAGE_OS2_HEADER*)(peimage + mz_header->e_lfanew);
 163
 164           if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE)
 165             return 0;
 166
 167           if( (ne_header->ne_restab - ne_header->ne_rsrctab) <= sizeof(NE_TYPEINFO) )
 168             *retptr = (LPBYTE)-1;
 169           else
 170             *retptr = peimage + mz_header->e_lfanew + ne_header->ne_rsrctab;
 171
 172           return IMAGE_OS2_SIGNATURE;
 173         }
 174         return 0; /* failed */
 175 }
 176 /*************************************************************************
 177  *                      USER32_LoadResource
 178  */
 179 static BYTE * USER32_LoadResource( LPBYTE peimage, NE_NAMEINFO* pNInfo, WORD sizeShift, ULONG *uSize)
 180 {
 181         TRACE("%p %p 0x%08x\n", peimage, pNInfo, sizeShift);
 182
 183         *uSize = (DWORD)pNInfo->length << sizeShift;
 184         return peimage + ((DWORD)pNInfo->offset << sizeShift);
 185 }
 186
 187 /*************************************************************************
 188  *                      ICO_LoadIcon
 189  */
 190 static BYTE * ICO_LoadIcon( LPBYTE peimage, LPicoICONDIRENTRY lpiIDE, ULONG *uSize)
 191 {
 192         TRACE("%p %p\n", peimage, lpiIDE);
 193
 194         *uSize = lpiIDE->dwBytesInRes;
 195         return peimage + lpiIDE->dwImageOffset;
 196 }
 197
 198 /*************************************************************************
 199  *                      ICO_GetIconDirectory
 200  *
 201  * Reads .ico file and build phony ICONDIR struct
 202  */
 203 static BYTE * ICO_GetIconDirectory( LPBYTE peimage, LPicoICONDIR* lplpiID, ULONG *uSize )
 204 {
 205         CURSORICONFILEDIR *lpcid;       /* icon resource in resource-dir format */
 206         CURSORICONDIR   * lpID;         /* icon resource in resource format */
 207         int             i;
 208
 209         TRACE("%p %p\n", peimage, lplpiID);
 210
 211         lpcid = (CURSORICONFILEDIR*)peimage;
 212
 213         if( lpcid->idReserved || (lpcid->idType != 1) || (!lpcid->idCount) )
 214           return 0;
 215
 216         /* allocate the phony ICONDIR structure */
 217         *uSize = FIELD_OFFSET(CURSORICONDIR, idEntries[lpcid->idCount]);
 218         if( (lpID = HeapAlloc(GetProcessHeap(),0, *uSize) ))
 219         {
 220           /* copy the header */
 221           lpID->idReserved = lpcid->idReserved;
 222           lpID->idType = lpcid->idType;
 223           lpID->idCount = lpcid->idCount;
 224
 225           /* copy the entries */
 226           for( i=0; i < lpcid->idCount; i++ )
 227           {
 228             memcpy(&lpID->idEntries[i], &lpcid->idEntries[i], sizeof(CURSORICONDIRENTRY) - 2);
 229             lpID->idEntries[i].wResId = i;
 230           }
 231
 232           *lplpiID = (LPicoICONDIR)peimage;
 233           return (BYTE *)lpID;
 234         }
 235         return 0;
 236 }
 237
 238 /*************************************************************************
 239  *      ICO_ExtractIconExW              [internal]
 240  *
 241  * NOTES
 242  *  nIcons = 0: returns number of Icons in file
 243  *
 244  * returns
 245  *  invalid file: -1
 246  *  failure:0;
 247  *  success: number of icons in file (nIcons = 0) or nr of icons retrieved
 248  */
 249 static UINT ICO_ExtractIconExW(
 250         LPCWSTR lpszExeFileName,
 251         HICON * RetPtr,
 252         INT nIconIndex,
 253         UINT nIcons,
 254         UINT cxDesired,
 255         UINT cyDesired,
 256         UINT *pIconId,
 257         UINT flags)
 258 {
 259         UINT            ret = 0;
 260         UINT            cx1, cx2, cy1, cy2;
 261         LPBYTE          pData;
 262         DWORD           sig;
 263         HANDLE          hFile;
 264         UINT16          iconDirCount = 0,iconCount = 0;
 265         LPBYTE          peimage;
 266         HANDLE          fmapping;
 267         DWORD           fsizeh,fsizel;
 268         WCHAR           szExePath[MAX_PATH];
 269         DWORD           dwSearchReturn;
 270
 271         TRACE("%s, %d, %d %p 0x%08x\n", debugstr_w(lpszExeFileName), nIconIndex, nIcons, pIconId, flags);
 272
 273         dwSearchReturn = SearchPathW(NULL, lpszExeFileName, NULL, ARRAY_SIZE(szExePath), szExePath, NULL);
 274         if ((dwSearchReturn == 0) || (dwSearchReturn > ARRAY_SIZE(szExePath)))
 275         {
 276             WARN("File %s not found or path too long\n", debugstr_w(lpszExeFileName));
 277             return -1;
 278         }
 279
 280         hFile = CreateFileW(szExePath, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
 281         if (hFile == INVALID_HANDLE_VALUE) return ret;
 282         fsizel = GetFileSize(hFile,&fsizeh);
 283
 284         /* Map the file */
 285         fmapping = CreateFileMappingW(hFile, NULL, PAGE_READONLY | SEC_COMMIT, 0, 0, NULL);
 286         CloseHandle(hFile);
 287         if (!fmapping)
 288         {
 289           WARN("CreateFileMapping error %ld\n", GetLastError() );
 290           return 0xFFFFFFFF;
 291         }
 292
 293         if (!(peimage = MapViewOfFile(fmapping, FILE_MAP_READ, 0, 0, 0)))
 294         {
 295           WARN("MapViewOfFile error %ld\n", GetLastError() );
 296           CloseHandle(fmapping);
 297           return 0xFFFFFFFF;
 298         }
 299         CloseHandle(fmapping);
 300
 301         cx1 = LOWORD(cxDesired);
 302         cx2 = HIWORD(cxDesired);
 303         cy1 = LOWORD(cyDesired);
 304         cy2 = HIWORD(cyDesired);
 305
 306         if (pIconId) /* Invalidate first icon identifier */
 307                 *pIconId = 0xFFFFFFFF;
 308
 309         if (!pIconId) /* if no icon identifier array present use the icon handle array as intermediate storage */
 310           pIconId = (UINT*)RetPtr;
 311
 312         sig = USER32_GetResourceTable(peimage, fsizel, &pData);
 313
 314 /* ico file or NE exe/dll*/
 315         if (sig==IMAGE_OS2_SIGNATURE || sig==1) /* .ICO file */
 316         {
 317           BYTE          *pCIDir = 0;
 318           NE_TYPEINFO   *pTInfo = (NE_TYPEINFO*)(pData + 2);
 319           NE_NAMEINFO   *pIconStorage = NULL;
 320           NE_NAMEINFO   *pIconDir = NULL;
 321           LPicoICONDIR  lpiID = NULL;
 322           ULONG         uSize = 0;
 323
 324           TRACE("-- OS2/icon Signature (0x%08lx)\n", sig);
 325
 326           if (pData == (BYTE*)-1)
 327           {
 328             pCIDir = ICO_GetIconDirectory(peimage, &lpiID, &uSize);     /* check for .ICO file */
 329             if (pCIDir)
 330             {
 331               iconDirCount = 1; iconCount = lpiID->idCount;
 332               TRACE("-- icon found %p 0x%08lx 0x%08x 0x%08x\n", pCIDir, uSize, iconDirCount, iconCount);
 333             }
 334           }
 335           else while (pTInfo->type_id && !(pIconStorage && pIconDir))
 336           {
 337             if (pTInfo->type_id == NE_RSCTYPE_GROUP_ICON)       /* find icon directory and icon repository */
 338             {
 339               iconDirCount = pTInfo->count;
 340               pIconDir = ((NE_NAMEINFO*)(pTInfo + 1));
 341               TRACE("\tfound directory - %i icon families\n", iconDirCount);
 342             }
 343             if (pTInfo->type_id == NE_RSCTYPE_ICON)
 344             {
 345               iconCount = pTInfo->count;
 346               pIconStorage = ((NE_NAMEINFO*)(pTInfo + 1));
 347               TRACE("\ttotal icons - %i\n", iconCount);
 348             }
 349             pTInfo = (NE_TYPEINFO *)((char*)(pTInfo+1)+pTInfo->count*sizeof(NE_NAMEINFO));
 350           }
 351
 352           if ((pIconStorage && pIconDir) || lpiID)        /* load resources and create icons */
 353           {
 354             if (nIcons == 0)
 355             {
 356               ret = iconDirCount;
 357               if (lpiID)        /* *.ico file, deallocate heap pointer*/
 358                 HeapFree(GetProcessHeap(), 0, pCIDir);
 359             }
 360             else if (nIconIndex < iconDirCount)
 361             {
 362               UINT16   i, icon;
 363               if (nIcons > iconDirCount - nIconIndex)
 364                 nIcons = iconDirCount - nIconIndex;
 365
 366               for (i = 0; i < nIcons; i++)
 367               {
 368                 /* .ICO files have only one icon directory */
 369                 if (lpiID == NULL)      /* not *.ico */
 370                   pCIDir = USER32_LoadResource(peimage, pIconDir + i + nIconIndex, *(WORD*)pData, &uSize);
 371                 pIconId[i] = LookupIconIdFromDirectoryEx(pCIDir, TRUE, cx1, cy1, flags);
 372                 if (cx2 && cy2) pIconId[++i] = LookupIconIdFromDirectoryEx(pCIDir, TRUE,  cx2, cy2, flags);
 373               }
 374               if (lpiID)        /* *.ico file, deallocate heap pointer*/
 375                 HeapFree(GetProcessHeap(), 0, pCIDir);
 376
 377               for (icon = 0; icon < nIcons; icon++)
 378               {
 379                 pCIDir = NULL;
 380                 if (lpiID)
 381                   pCIDir = ICO_LoadIcon(peimage, lpiID->idEntries + (int)pIconId[icon], &uSize);
 382                 else
 383                   for (i = 0; i < iconCount; i++)
 384                     if (pIconStorage[i].id == ((int)pIconId[icon] | 0x8000) )
 385                       pCIDir = USER32_LoadResource(peimage, pIconStorage + i, *(WORD*)pData, &uSize);
 386
 387                 if (pCIDir)
 388                 {
 389                   RetPtr[icon] = CreateIconFromResourceEx(pCIDir, uSize, TRUE, 0x00030000,
 390                                                                  cx1, cy1, flags);
 391                   if (cx2 && cy2)
 392                       RetPtr[++icon] = CreateIconFromResourceEx(pCIDir, uSize, TRUE, 0x00030000,
 393                                                                        cx2, cy2, flags);
 394                 }
 395                 else
 396                   RetPtr[icon] = 0;
 397               }
 398               ret = icon;       /* return number of retrieved icons */
 399             }
 400           }
 401         }
 402 /* end ico file */
 403
 404 /* exe/dll */
 405         else if( sig == IMAGE_NT_SIGNATURE )
 406         {
 407         BYTE *idata, *igdata;
 408         const IMAGE_RESOURCE_DIRECTORY *rootresdir, *iconresdir, *icongroupresdir;
 409         const IMAGE_RESOURCE_DATA_ENTRY *idataent, *igdataent;
 410         const IMAGE_RESOURCE_DIRECTORY_ENTRY *xresent;
 411         ULONG size;
 412         UINT i;
 413
 414         rootresdir = RtlImageDirectoryEntryToData((HMODULE)peimage, FALSE, IMAGE_DIRECTORY_ENTRY_RESOURCE, &size);
 415         if (!rootresdir)
 416         {
 417             WARN("haven't found section for resource directory.\n");
 418             goto end;
 419         }
 420
 421           /* search for the group icon directory */
 422           if (!(icongroupresdir = find_entry_by_id(rootresdir, LOWORD(RT_GROUP_ICON), rootresdir)))
 423           {
 424             WARN("No Icongroupresourcedirectory!\n");
 425             goto end;           /* failure */
 426           }
 427           iconDirCount = icongroupresdir->NumberOfNamedEntries + icongroupresdir->NumberOfIdEntries;
 428
 429           /* only number of icons requested */
 430           if( !pIconId )
 431           {
 432             ret = iconDirCount;
 433             goto end;           /* success */
 434           }
 435
 436           if( nIconIndex < 0 )
 437           {
 438             /* search resource id */
 439             int n = 0;
 440             int iId = abs(nIconIndex);
 441             const IMAGE_RESOURCE_DIRECTORY_ENTRY* xprdeTmp = (const IMAGE_RESOURCE_DIRECTORY_ENTRY*)(icongroupresdir+1);
 442
 443             while(n<iconDirCount && xprdeTmp)
 444             {
 445               if(xprdeTmp->Id ==  iId)
 446               {
 447                   nIconIndex = n;
 448                   break;
 449               }
 450               n++;
 451               xprdeTmp++;
 452             }
 453             if (nIconIndex < 0)
 454             {
 455               WARN("resource id %d not found\n", iId);
 456               goto end;         /* failure */
 457             }
 458           }
 459           else
 460           {
 461             /* check nIconIndex to be in range */
 462             if (nIconIndex >= iconDirCount)
 463             {
 464               WARN("nIconIndex %d is larger than iconDirCount %d\n",nIconIndex,iconDirCount);
 465               goto end;         /* failure */
 466             }
 467           }
 468
 469           /* assure we don't get too much */
 470           if( nIcons > iconDirCount - nIconIndex )
 471             nIcons = iconDirCount - nIconIndex;
 472
 473           /* starting from specified index */
 474           xresent = (const IMAGE_RESOURCE_DIRECTORY_ENTRY*)(icongroupresdir+1) + nIconIndex;
 475
 476           for (i=0; i < nIcons; i++,xresent++)
 477           {
 478             const IMAGE_RESOURCE_DIRECTORY *resdir;
 479
 480             /* go down this resource entry, name */
 481             resdir = (const IMAGE_RESOURCE_DIRECTORY *)((const char *)rootresdir + xresent->OffsetToDirectory);
 482
 483             /* default language (0) */
 484             resdir = find_entry_default(resdir,rootresdir);
 485             igdataent = (const IMAGE_RESOURCE_DATA_ENTRY*)resdir;
 486
 487             /* lookup address in mapped image for virtual address */
 488         igdata = RtlImageRvaToVa(RtlImageNtHeader((HMODULE)peimage), (HMODULE)peimage, igdataent->OffsetToData, NULL);
 489         if (!igdata)
 490             {
 491               FIXME("no matching real address for icongroup!\n");
 492               goto end; /* failure */
 493             }
 494             pIconId[i] = LookupIconIdFromDirectoryEx(igdata, TRUE, cx1, cy1, flags);
 495             if (cx2 && cy2) pIconId[++i] = LookupIconIdFromDirectoryEx(igdata, TRUE, cx2, cy2, flags);
 496           }
 497
 498           if (!(iconresdir=find_entry_by_id(rootresdir,LOWORD(RT_ICON),rootresdir)))
 499           {
 500             WARN("No Iconresourcedirectory!\n");
 501             goto end;           /* failure */
 502           }
 503
 504           for (i=0; i<nIcons; i++)
 505           {
 506             const IMAGE_RESOURCE_DIRECTORY *xresdir;
 507             xresdir = find_entry_by_id(iconresdir, LOWORD(pIconId[i]), rootresdir);
 508             if( !xresdir )
 509             {
 510               WARN("icon entry %d not found\n", LOWORD(pIconId[i]));
 511               RetPtr[i]=0;
 512               continue;
 513             }
 514             xresdir = find_entry_default(xresdir, rootresdir);
 515             idataent = (const IMAGE_RESOURCE_DATA_ENTRY*)xresdir;
 516
 517         idata = RtlImageRvaToVa(RtlImageNtHeader((HMODULE)peimage), (HMODULE)peimage, idataent->OffsetToData, NULL);
 518         if (!idata)
 519             {
 520               WARN("no matching real address found for icondata!\n");
 521               RetPtr[i]=0;
 522               continue;
 523             }
 524             RetPtr[i] = CreateIconFromResourceEx(idata, idataent->Size, TRUE, 0x00030000, cx1, cy1, flags);
 525             if (cx2 && cy2)
 526                 RetPtr[++i] = CreateIconFromResourceEx(idata, idataent->Size, TRUE, 0x00030000, cx2, cy2, flags);
 527           }
 528           ret = i;      /* return number of retrieved icons */
 529         }                       /* if(sig == IMAGE_NT_SIGNATURE) */
 530
 531 end:
 532         UnmapViewOfFile(peimage);       /* success */
 533         return ret;
 534 }
 535
 536 /***********************************************************************
 537  *           PrivateExtractIconsW                       [USER32.@]
 538  *
 539  * NOTES
 540  *  If HIWORD(sizeX) && HIWORD(sizeY) 2 * ((nIcons + 1) MOD 2) icons are
 541  *  returned, with the LOWORD size icon first and the HIWORD size icon
 542  *  second.
 543  *  Also the Windows equivalent does extract icons in a strange way if
 544  *  nIndex is negative. Our implementation treats a negative nIndex as
 545  *  looking for that resource identifier for the first icon to retrieve.
 546  *
 547  * FIXME:
 548  *  should also support 16 bit EXE + DLLs, cursor and animated cursor as
 549  *  well as bitmap files.
 550  */
 551
 552 UINT WINAPI PrivateExtractIconsW (
 553         LPCWSTR lpwstrFile,
 554         int nIndex,
 555         int sizeX,
 556         int sizeY,
 557         HICON * phicon, /* [out] pointer to array of nIcons HICON handles */
 558         UINT* pIconId,  /* [out] pointer to array of nIcons icon identifiers or NULL */
 559         UINT nIcons,    /* [in] number of icons to retrieve */
 560         UINT flags )    /* [in] LR_* flags used by LoadImage */
 561 {
 562         TRACE("%s %d %dx%d %p %p %d 0x%08x\n",
 563               debugstr_w(lpwstrFile), nIndex, sizeX, sizeY, phicon, pIconId, nIcons, flags);
 564
 565         if ((nIcons & 1) && HIWORD(sizeX) && HIWORD(sizeY))
 566         {
 567           WARN("Uneven number %d of icons requested for small and large icons!\n", nIcons);
 568         }
 569         return ICO_ExtractIconExW(lpwstrFile, phicon, nIndex, nIcons, sizeX, sizeY, pIconId, flags);
 570 }
 571
 572 /***********************************************************************
 573  *           PrivateExtractIconsA                       [USER32.@]
 574  */
 575
 576 UINT WINAPI PrivateExtractIconsA (
 577         LPCSTR lpstrFile,
 578         int nIndex,
 579         int sizeX,
 580         int sizeY,
 581         HICON * phicon, /* [out] pointer to array of nIcons HICON handles */
 582         UINT* piconid,  /* [out] pointer to array of nIcons icon identifiers or NULL */
 583         UINT nIcons,    /* [in] number of icons to retrieve */
 584         UINT flags )    /* [in] LR_* flags used by LoadImage */
 585 {
 586     UINT ret;
 587     INT len = MultiByteToWideChar(CP_ACP, 0, lpstrFile, -1, NULL, 0);
 588     LPWSTR lpwstrFile = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 589
 590     MultiByteToWideChar(CP_ACP, 0, lpstrFile, -1, lpwstrFile, len);
 591     ret = PrivateExtractIconsW(lpwstrFile, nIndex, sizeX, sizeY, phicon, piconid, nIcons, flags);
 592
 593     HeapFree(GetProcessHeap(), 0, lpwstrFile);
 594     return ret;
 595 }
 596
 597 /***********************************************************************
 598  *           PrivateExtractIconExW                      [USER32.@]
 599  * NOTES
 600  *  if nIndex == -1 it returns the number of icons in any case !!!
 601  */
 602 UINT WINAPI PrivateExtractIconExW (
 603         LPCWSTR lpwstrFile,
 604         int nIndex,
 605         HICON * phIconLarge,
 606         HICON * phIconSmall,
 607         UINT nIcons )
 608 {
 609         DWORD cyicon, cysmicon, cxicon, cxsmicon;
 610         UINT ret = 0;
 611
 612         TRACE("%s %d %p %p %d\n",
 613         debugstr_w(lpwstrFile),nIndex,phIconLarge, phIconSmall, nIcons);
 614
 615         if (nIndex == -1)
 616           /* get the number of icons */
 617           return ICO_ExtractIconExW(lpwstrFile, NULL, 0, 0, 0, 0, NULL, LR_DEFAULTCOLOR);
 618
 619         if (nIcons == 1 && phIconSmall && phIconLarge)
 620         {
 621           HICON hIcon[2];
 622           cxicon = GetSystemMetrics(SM_CXICON);
 623           cyicon = GetSystemMetrics(SM_CYICON);
 624           cxsmicon = GetSystemMetrics(SM_CXSMICON);
 625           cysmicon = GetSystemMetrics(SM_CYSMICON);
 626
 627           ret = ICO_ExtractIconExW(lpwstrFile, hIcon, nIndex, 2, cxicon | (cxsmicon<<16),
 628                                    cyicon | (cysmicon<<16), NULL, LR_DEFAULTCOLOR);
 629           *phIconLarge = hIcon[0];
 630           *phIconSmall = hIcon[1];
 631           return ret;
 632         }
 633
 634         if (phIconSmall)
 635         {
 636           /* extract n small icons */
 637           cxsmicon = GetSystemMetrics(SM_CXSMICON);
 638           cysmicon = GetSystemMetrics(SM_CYSMICON);
 639           ret = ICO_ExtractIconExW(lpwstrFile, phIconSmall, nIndex, nIcons, cxsmicon,
 640                                    cysmicon, NULL, LR_DEFAULTCOLOR);
 641         }
 642        if (phIconLarge)
 643         {
 644           /* extract n large icons */
 645           cxicon = GetSystemMetrics(SM_CXICON);
 646           cyicon = GetSystemMetrics(SM_CYICON);
 647          ret = ICO_ExtractIconExW(lpwstrFile, phIconLarge, nIndex, nIcons, cxicon,
 648                                    cyicon, NULL, LR_DEFAULTCOLOR);
 649         }
 650         return ret;
 651 }
 652
 653 /***********************************************************************
 654  *           PrivateExtractIconExA                      [USER32.@]
 655  */
 656 UINT WINAPI PrivateExtractIconExA (
 657         LPCSTR lpstrFile,
 658         int nIndex,
 659         HICON * phIconLarge,
 660         HICON * phIconSmall,
 661         UINT nIcons )
 662 {
 663         UINT ret;
 664         INT len = MultiByteToWideChar(CP_ACP, 0, lpstrFile, -1, NULL, 0);
 665         LPWSTR lpwstrFile = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 666
 667         TRACE("%s %d %p %p %d\n", lpstrFile, nIndex, phIconLarge, phIconSmall, nIcons);
 668
 669         MultiByteToWideChar(CP_ACP, 0, lpstrFile, -1, lpwstrFile, len);
 670         ret = PrivateExtractIconExW(lpwstrFile, nIndex, phIconLarge, phIconSmall, nIcons);
 671         HeapFree(GetProcessHeap(), 0, lpwstrFile);
 672         return ret;
 673 }