dlls/user/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 #include <string.h>
   9 #include <sys/types.h>
  10 #include <unistd.h>
  11 #include "winbase.h"
  12 #include "windef.h"
  13 #include "winerror.h"
  14 #include "wingdi.h"
  15 #include "winuser.h"
  16 #include "neexe.h"
  17 #include "cursoricon.h"
  18 #include "module.h"
  19 #include "heap.h"
  20 #include "debugtools.h"
  21
  22 DEFAULT_DEBUG_CHANNEL(icon)
  23
  24 #include "pshpack1.h"
  25
  26 typedef struct
  27 {
  28     BYTE        bWidth;          /* Width, in pixels, of the image      */
  29     BYTE        bHeight;         /* Height, in pixels, of the image     */
  30     BYTE        bColorCount;     /* Number of colors in image (0 if >=8bpp) */
  31     BYTE        bReserved;       /* Reserved ( must be 0)               */
  32     WORD        wPlanes;         /* Color Planes                        */
  33     WORD        wBitCount;       /* Bits per pixel                      */
  34     DWORD       dwBytesInRes;    /* How many bytes in this resource?    */
  35     DWORD       dwImageOffset;   /* Where in the file is this image?    */
  36 } icoICONDIRENTRY, *LPicoICONDIRENTRY;
  37
  38 typedef struct
  39 {
  40     WORD            idReserved;   /* Reserved (must be 0) */
  41     WORD            idType;       /* Resource Type (RES_ICON or RES_CURSOR) */
  42     WORD            idCount;      /* How many images */
  43     icoICONDIRENTRY idEntries[1]; /* An entry for each image (idCount of 'em) */
  44 } icoICONDIR, *LPicoICONDIR;
  45
  46 #include "poppack.h"
  47
  48 #if 0
  49 static void dumpIcoDirEnty ( LPicoICONDIRENTRY entry )
  50 {
  51         TRACE("width = 0x%08x height = 0x%08x\n", entry->bWidth, entry->bHeight);
  52         TRACE("colors = 0x%08x planes = 0x%08x\n", entry->bColorCount, entry->wPlanes);
  53         TRACE("bitcount = 0x%08x bytesinres = 0x%08lx offset = 0x%08lx\n",
  54         entry->wBitCount, entry->dwBytesInRes, entry->dwImageOffset);
  55 }
  56 static void dumpIcoDir ( LPicoICONDIR entry )
  57 {
  58         TRACE("type = 0x%08x count = 0x%08x\n", entry->idType, entry->idCount);
  59 }
  60 #endif
  61 /*************************************************************************
  62  *                              USER32_GetResourceTable
  63  */
  64 static DWORD USER32_GetResourceTable(LPBYTE peimage, LPBYTE *retptr)
  65 {
  66         IMAGE_DOS_HEADER        * mz_header;
  67
  68         TRACE("%p %p\n", peimage, retptr);
  69
  70         *retptr = NULL;
  71
  72         mz_header = (IMAGE_DOS_HEADER*) peimage;
  73
  74         if (mz_header->e_magic != IMAGE_DOS_SIGNATURE)
  75         {
  76           if (mz_header->e_cblp == 1)   /* .ICO file ? */
  77           {
  78             *retptr = (LPBYTE)-1;       /* ICONHEADER.idType, must be 1 */
  79             return 1;
  80           }
  81           else
  82             return 0; /* failed */
  83         }
  84
  85         if (*((DWORD*)(peimage + mz_header->e_lfanew)) == IMAGE_NT_SIGNATURE )
  86           return IMAGE_NT_SIGNATURE;
  87
  88         if (*((WORD*)(peimage + mz_header->e_lfanew)) == IMAGE_OS2_SIGNATURE )
  89         {
  90           IMAGE_OS2_HEADER      * ne_header;
  91
  92           ne_header = (IMAGE_OS2_HEADER*)(peimage + mz_header->e_lfanew);
  93
  94           if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE)
  95             return 0;
  96
  97           if( (ne_header->ne_restab - ne_header->ne_rsrctab) <= sizeof(NE_TYPEINFO) )
  98             *retptr = (LPBYTE)-1;
  99           else
 100             *retptr = peimage + mz_header->e_lfanew + ne_header->ne_rsrctab;
 101
 102           return IMAGE_OS2_SIGNATURE;
 103         }
 104         return 0; /* failed */
 105 }
 106 /*************************************************************************
 107  *                      USER32_LoadResource
 108  */
 109 static BYTE * USER32_LoadResource( LPBYTE peimage, NE_NAMEINFO* pNInfo, WORD sizeShift, ULONG *uSize)
 110 {
 111         TRACE("%p %p 0x%08x\n", peimage, pNInfo, sizeShift);
 112
 113         *uSize = (DWORD)pNInfo->length << sizeShift;
 114         return peimage + ((DWORD)pNInfo->offset << sizeShift);
 115 }
 116
 117 /*************************************************************************
 118  *                      ICO_LoadIcon
 119  */
 120 static BYTE * ICO_LoadIcon( LPBYTE peimage, LPicoICONDIRENTRY lpiIDE, ULONG *uSize)
 121 {
 122         TRACE("%p %p\n", peimage, lpiIDE);
 123
 124         *uSize = lpiIDE->dwBytesInRes;
 125         return peimage + lpiIDE->dwImageOffset;
 126 }
 127
 128 /*************************************************************************
 129  *                      ICO_GetIconDirectory
 130  *
 131  * Reads .ico file and build phony ICONDIR struct
 132  * see http://www.microsoft.com/win32dev/ui/icons.htm
 133  */
 134 #define HEADER_SIZE             (sizeof(CURSORICONDIR) - sizeof (CURSORICONDIRENTRY))
 135 #define HEADER_SIZE_FILE        (sizeof(icoICONDIR) - sizeof (icoICONDIRENTRY))
 136
 137 static BYTE * ICO_GetIconDirectory( LPBYTE peimage, LPicoICONDIR* lplpiID, ULONG *uSize )
 138 {
 139         CURSORICONDIR   * lpcid;        /* icon resource in resource-dir format */
 140         CURSORICONDIR   * lpID;         /* icon resource in resource format */
 141         int             i;
 142
 143         TRACE("%p %p\n", peimage, lplpiID);
 144
 145         lpcid = (CURSORICONDIR*)peimage;
 146
 147         if( lpcid->idReserved || (lpcid->idType != 1) || (!lpcid->idCount) )
 148           return 0;
 149
 150         /* allocate the phony ICONDIR structure */
 151         *uSize = lpcid->idCount * sizeof(CURSORICONDIRENTRY) + HEADER_SIZE;
 152         if( (lpID = (CURSORICONDIR*)HeapAlloc(GetProcessHeap(),0, *uSize) ))
 153         {
 154           /* copy the header */
 155           lpID->idReserved = lpcid->idReserved;
 156           lpID->idType = lpcid->idType;
 157           lpID->idCount = lpcid->idCount;
 158
 159           /* copy the entrys */
 160           for( i=0; i < lpcid->idCount; i++ )
 161           {
 162             memcpy((void*)&(lpID->idEntries[i]),(void*)&(lpcid->idEntries[i]), sizeof(CURSORICONDIRENTRY) - 2);
 163             lpID->idEntries[i].wResId = i;
 164           }
 165
 166           *lplpiID = (LPicoICONDIR)peimage;
 167           return (BYTE *)lpID;
 168         }
 169         return 0;
 170 }
 171
 172 /*************************************************************************
 173  *      ICO_ExtractIconExW              [internal]
 174  *
 175  * NOTES
 176  *  nIcons = 0: returns number of Icons in file
 177  *
 178  * returns
 179  *  failure:0; success: icon handle or nr of icons (nIconIndex-1)
 180  */
 181 static HRESULT WINAPI ICO_ExtractIconExW(
 182         LPCWSTR lpszExeFileName,
 183         HICON * RetPtr,
 184         INT nIconIndex,
 185         UINT nIcons,
 186         UINT cxDesired,
 187         UINT cyDesired )
 188 {
 189         HGLOBAL         hRet = E_FAIL;
 190         LPBYTE          pData;
 191         DWORD           sig;
 192         HFILE           hFile;
 193         UINT16          iconDirCount = 0,iconCount = 0;
 194         LPBYTE          peimage;
 195         HANDLE          fmapping;
 196         ULONG           uSize;
 197
 198         TRACE("(file %s,start %d,extract %d\n", debugstr_w(lpszExeFileName), nIconIndex, nIcons);
 199
 200         hFile = CreateFileW( lpszExeFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, -1 );
 201         if (hFile == INVALID_HANDLE_VALUE) return hRet;
 202
 203         /* Map the file */
 204         fmapping = CreateFileMappingA( hFile, NULL, PAGE_READONLY | SEC_COMMIT, 0, 0, NULL );
 205         if (!fmapping)
 206         {
 207           WARN("CreateFileMapping error %ld\n", GetLastError() );
 208           goto end_1;
 209         }
 210
 211         if ( !(peimage = MapViewOfFile(fmapping,FILE_MAP_READ,0,0,0)))
 212         {
 213           WARN("MapViewOfFile error %ld\n", GetLastError() );
 214           goto end_2;
 215         }
 216
 217
 218         sig = USER32_GetResourceTable(peimage,&pData);
 219
 220 /* ico file */
 221         if( sig==IMAGE_OS2_SIGNATURE || sig==1 ) /* .ICO file */
 222         {
 223           BYTE          *pCIDir = 0;
 224           NE_TYPEINFO   *pTInfo = (NE_TYPEINFO*)(pData + 2);
 225           NE_NAMEINFO   *pIconStorage = NULL;
 226           NE_NAMEINFO   *pIconDir = NULL;
 227           LPicoICONDIR  lpiID = NULL;
 228
 229           TRACE("-- OS2/icon Signature (0x%08lx)\n", sig);
 230
 231           if( pData == (BYTE*)-1 )
 232           {
 233             /* FIXME: pCIDir is allocated on the heap - memory leak */
 234             pCIDir = ICO_GetIconDirectory(peimage, &lpiID, &uSize);     /* check for .ICO file */
 235             if( pCIDir )
 236             {
 237               iconDirCount = 1; iconCount = lpiID->idCount;
 238               TRACE("-- icon found %p 0x%08lx 0x%08x 0x%08x\n", pCIDir, uSize, iconDirCount, iconCount);
 239             }
 240           }
 241           else while( pTInfo->type_id && !(pIconStorage && pIconDir) )
 242           {
 243             if( pTInfo->type_id == NE_RSCTYPE_GROUP_ICON )      /* find icon directory and icon repository */
 244             {
 245               iconDirCount = pTInfo->count;
 246               pIconDir = ((NE_NAMEINFO*)(pTInfo + 1));
 247               TRACE("\tfound directory - %i icon families\n", iconDirCount);
 248             }
 249             if( pTInfo->type_id == NE_RSCTYPE_ICON )
 250             {
 251               iconCount = pTInfo->count;
 252               pIconStorage = ((NE_NAMEINFO*)(pTInfo + 1));
 253               TRACE("\ttotal icons - %i\n", iconCount);
 254             }
 255             pTInfo = (NE_TYPEINFO *)((char*)(pTInfo+1)+pTInfo->count*sizeof(NE_NAMEINFO));
 256           }
 257
 258           if( (pIconStorage && pIconDir) || lpiID )       /* load resources and create icons */
 259           {
 260             if( nIcons == 0 )
 261             {
 262               hRet = iconDirCount;
 263             }
 264             else if( nIconIndex < iconDirCount )
 265             {
 266               UINT16   i, icon;
 267               if( nIcons > iconDirCount - nIconIndex )
 268                 nIcons = iconDirCount - nIconIndex;
 269
 270               for( i = nIconIndex; i < nIconIndex + nIcons; i++ )
 271               {
 272                 /* .ICO files have only one icon directory */
 273                 if( lpiID == NULL )     /* *.ico */
 274                   pCIDir = USER32_LoadResource( peimage, pIconDir + i, *(WORD*)pData, &uSize );
 275                 RetPtr[i-nIconIndex] = LookupIconIdFromDirectoryEx( pCIDir, TRUE, cxDesired, cyDesired, 0);
 276               }
 277
 278               for( icon = nIconIndex; icon < nIconIndex + nIcons; icon++ )
 279               {
 280                 pCIDir = NULL;
 281                 if( lpiID )
 282                   pCIDir = ICO_LoadIcon( peimage, lpiID->idEntries + RetPtr[icon-nIconIndex], &uSize);
 283                 else
 284                   for( i = 0; i < iconCount; i++ )
 285                     if( pIconStorage[i].id == (RetPtr[icon-nIconIndex] | 0x8000) )
 286                       pCIDir = USER32_LoadResource( peimage, pIconStorage + i,*(WORD*)pData, &uSize );
 287
 288                 if( pCIDir )
 289                   RetPtr[icon-nIconIndex] = (HICON) CreateIconFromResourceEx(pCIDir,uSize,TRUE,0x00030000, cxDesired, cyDesired, LR_DEFAULTCOLOR);
 290                 else
 291                   RetPtr[icon-nIconIndex] = 0;
 292               }
 293               hRet = S_OK;
 294             }
 295           }
 296         }
 297 /* end ico file */
 298
 299 /* exe/dll */
 300         else if( sig == IMAGE_NT_SIGNATURE )
 301         {
 302           LPBYTE                idata,igdata;
 303           PIMAGE_DOS_HEADER     dheader;
 304           PIMAGE_NT_HEADERS     pe_header;
 305           PIMAGE_SECTION_HEADER pe_sections;
 306           PIMAGE_RESOURCE_DIRECTORY     rootresdir,iconresdir,icongroupresdir;
 307           PIMAGE_RESOURCE_DATA_ENTRY    idataent,igdataent;
 308           PIMAGE_RESOURCE_DIRECTORY_ENTRY       xresent;
 309           int                   i,j;
 310
 311           dheader = (PIMAGE_DOS_HEADER)peimage;
 312           pe_header = (PIMAGE_NT_HEADERS)(peimage+dheader->e_lfanew);     /* it is a pe header, USER32_GetResourceTable checked that */
 313           pe_sections = (PIMAGE_SECTION_HEADER)(((char*)pe_header)+sizeof(*pe_header)); /* probably makes problems with short PE headers...*/
 314           rootresdir = NULL;
 315
 316           /* search for the root resource directory */
 317           for (i=0;i<pe_header->FileHeader.NumberOfSections;i++)
 318           {
 319             if (pe_sections[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
 320               continue;
 321             /* FIXME: doesn't work when the resources are not in a seperate section */
 322             if (pe_sections[i].VirtualAddress == pe_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress)
 323             {
 324               rootresdir = (PIMAGE_RESOURCE_DIRECTORY)(peimage+pe_sections[i].PointerToRawData);
 325               break;
 326             }
 327           }
 328
 329           if (!rootresdir)
 330           {
 331             WARN("haven't found section for resource directory.\n");
 332             goto end_3;         /* failure */
 333           }
 334
 335           /* search for the group icon directory */
 336           if (!(icongroupresdir = GetResDirEntryW(rootresdir, RT_GROUP_ICONW, (DWORD)rootresdir, FALSE)))
 337           {
 338             WARN("No Icongroupresourcedirectory!\n");
 339             goto end_3;         /* failure */
 340           }
 341           iconDirCount = icongroupresdir->NumberOfNamedEntries + icongroupresdir->NumberOfIdEntries;
 342
 343           /* only number of icons requested */
 344           if( nIcons == 0 )
 345           {
 346             hRet = iconDirCount;
 347             goto end_3;         /* success */
 348           }
 349
 350           if( nIconIndex < 0 )
 351           {
 352             /* search resource id */
 353             int n = 0;
 354             int iId = abs(nIconIndex);
 355             PIMAGE_RESOURCE_DIRECTORY_ENTRY xprdeTmp = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(icongroupresdir+1);
 356
 357             while(n<iconDirCount && xprdeTmp)
 358             {
 359               if(xprdeTmp->u1.Id ==  iId)
 360               {
 361                   nIconIndex = n;
 362                   break;
 363               }
 364               n++;
 365               xprdeTmp++;
 366             }
 367             if (nIconIndex < 0)
 368             {
 369               WARN("resource id %d not found\n", iId);
 370               goto end_3;               /* failure */
 371             }
 372           }
 373           else
 374           {
 375             /* check nIconIndex to be in range */
 376             if (nIconIndex >= iconDirCount)
 377             {
 378               WARN("nIconIndex %d is larger than iconDirCount %d\n",nIconIndex,iconDirCount);
 379               goto end_3;               /* failure */
 380             }
 381           }
 382
 383           /* assure we don't get too much */
 384           if( nIcons > iconDirCount - nIconIndex )
 385             nIcons = iconDirCount - nIconIndex;
 386
 387           /* starting from specified index */
 388           xresent = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(icongroupresdir+1) + nIconIndex;
 389
 390           for (i=0; i < nIcons; i++,xresent++)
 391           {
 392             PIMAGE_RESOURCE_DIRECTORY   resdir;
 393
 394             /* go down this resource entry, name */
 395             resdir = (PIMAGE_RESOURCE_DIRECTORY)((DWORD)rootresdir+(xresent->u2.s.OffsetToDirectory));
 396
 397             /* default language (0) */
 398             resdir = GetResDirEntryW(resdir,(LPWSTR)0,(DWORD)rootresdir,TRUE);
 399             igdataent = (PIMAGE_RESOURCE_DATA_ENTRY)resdir;
 400
 401             /* lookup address in mapped image for virtual address */
 402             igdata = NULL;
 403
 404             for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
 405             {
 406               if (igdataent->OffsetToData < pe_sections[j].VirtualAddress)
 407                 continue;
 408               if (igdataent->OffsetToData+igdataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
 409                 continue;
 410               igdata = peimage+(igdataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
 411             }
 412
 413             if (!igdata)
 414             {
 415               WARN("no matching real address for icongroup!\n");
 416               goto end_3;       /* failure */
 417             }
 418             RetPtr[i] = (HICON)LookupIconIdFromDirectoryEx(igdata, TRUE, cxDesired, cyDesired, LR_DEFAULTCOLOR);
 419           }
 420
 421           if (!(iconresdir=GetResDirEntryW(rootresdir,RT_ICONW,(DWORD)rootresdir,FALSE)))
 422           {
 423             WARN("No Iconresourcedirectory!\n");
 424             goto end_3;         /* failure */
 425           }
 426
 427           for (i=0; i<nIcons; i++)
 428           {
 429             PIMAGE_RESOURCE_DIRECTORY   xresdir;
 430             xresdir = GetResDirEntryW(iconresdir,(LPWSTR)(DWORD)RetPtr[i],(DWORD)rootresdir,FALSE);
 431             xresdir = GetResDirEntryW(xresdir,(LPWSTR)0,(DWORD)rootresdir,TRUE);
 432             idataent = (PIMAGE_RESOURCE_DATA_ENTRY)xresdir;
 433             idata = NULL;
 434
 435             /* map virtual to address in image */
 436             for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
 437             {
 438               if (idataent->OffsetToData < pe_sections[j].VirtualAddress)
 439                 continue;
 440               if (idataent->OffsetToData+idataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
 441                 continue;
 442               idata = peimage+(idataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
 443             }
 444             if (!idata)
 445             {
 446               WARN("no matching real address found for icondata!\n");
 447               RetPtr[i]=0;
 448               continue;
 449             }
 450             RetPtr[i] = (HICON) CreateIconFromResourceEx(idata,idataent->Size,TRUE,0x00030000, cxDesired, cyDesired, LR_DEFAULTCOLOR);
 451           }
 452           hRet = S_OK;  /* return first icon */
 453           goto end_3;           /* sucess */
 454         }                       /* if(sig == IMAGE_NT_SIGNATURE) */
 455
 456 end_3:  UnmapViewOfFile(peimage);       /* success */
 457 end_2:  CloseHandle(fmapping);
 458 end_1:  _lclose( hFile);
 459         return hRet;
 460 }
 461
 462 /***********************************************************************
 463  *           PrivateExtractIconsW                       [USER32.@]
 464  *
 465  * NOTES
 466  *  nIndex = 1: a small and a large icon are extracted.
 467  *  the higher word of sizeXY contains the size of the small icon, the lower
 468  *  word the size of the big icon. phicon points to HICON[2].
 469  *
 470  * RETURNS
 471  *  nIcons > 0: HRESULT
 472  *  nIcons = 0: the number of icons
 473  */
 474
 475 HRESULT WINAPI PrivateExtractIconsW (
 476         LPCWSTR lpwstrFile,
 477         int nIndex,
 478         DWORD sizeX,
 479         DWORD sizeY,
 480         HICON * phicon, /* HICON* */
 481         DWORD w,        /* 0 */
 482         UINT nIcons,
 483         DWORD y )       /* 0x80 maybe LR_* constant */
 484 {
 485         DWORD ret;
 486         TRACE("%s 0x%08x 0x%08lx 0x%08lx %p 0x%08lx 0x%08x 0x%08lx stub\n",
 487         debugstr_w(lpwstrFile),nIndex, sizeX ,sizeY ,phicon,w,nIcons,y );
 488
 489
 490         if ((nIcons == 2) && HIWORD(sizeX) && HIWORD(sizeY))
 491         {
 492           ret = ICO_ExtractIconExW(lpwstrFile, phicon, nIndex, 1, sizeX & 0xffff, sizeY & 0xffff );
 493           if (!SUCCEEDED(ret)) return ret;
 494           ret = ICO_ExtractIconExW(lpwstrFile, phicon+1, nIndex, 1, (sizeX>>16) & 0xffff, (sizeY>>16) & 0xffff );
 495         }
 496         else
 497         {
 498           ret = ICO_ExtractIconExW(lpwstrFile, phicon, nIndex, nIcons, sizeX & 0xffff, sizeY & 0xffff );
 499         }
 500
 501         FIXME_(icon)("hicon=%08x ret=0x%08lx\n", *phicon, ret);
 502
 503         return ret;
 504 }
 505
 506 /***********************************************************************
 507  *           PrivateExtractIconsA                       [USER32.@]
 508  */
 509
 510 HRESULT WINAPI PrivateExtractIconsA (
 511         LPCSTR lpstrFile,
 512         DWORD nIndex,
 513         DWORD sizeX,
 514         DWORD sizeY,
 515         HICON * phicon,
 516         DWORD w,        /* 0 */
 517         UINT  nIcons,
 518         DWORD y )       /* 0x80 */
 519 {
 520         DWORD ret;
 521         LPWSTR lpwstrFile = HEAP_strdupAtoW(GetProcessHeap(), 0, lpstrFile);
 522
 523         FIXME_(icon)("%s 0x%08lx 0x%08lx 0x%08lx %p 0x%08lx 0x%08x 0x%08lx stub\n",
 524         lpstrFile, nIndex, sizeX, sizeY, phicon, w, nIcons, y );
 525
 526         ret = PrivateExtractIconsW(lpwstrFile, nIndex, sizeX, sizeY, phicon, w, nIcons, y);
 527
 528         FIXME_(icon)("hicon=%08x ret=0x%08lx\n", *phicon, ret);
 529
 530         HeapFree(GetProcessHeap(), 0, lpwstrFile);
 531         return ret;
 532 }
 533
 534 /***********************************************************************
 535  *           PrivateExtractIconExW                      [USER32.443]
 536  * NOTES
 537  *  if nIcons = -1 it returns the number of icons in any case !!!
 538  */
 539 HRESULT WINAPI PrivateExtractIconExW (
 540         LPCWSTR lpwstrFile,
 541         DWORD nIndex,
 542         HICON * phIconLarge,
 543         HICON * phIconSmall,
 544         UINT nIcons )
 545 {
 546         DWORD cyicon, cysmicon, cxicon, cxsmicon;
 547         HRESULT ret = 0;
 548
 549         TRACE("%s 0x%08lx %p %p 0x%08x\n",
 550         debugstr_w(lpwstrFile),nIndex,phIconLarge, phIconSmall, nIcons);
 551
 552         if (nIndex == 1 && phIconSmall && phIconLarge)
 553         {
 554           HICON hIcon[2];
 555           cxicon = GetSystemMetrics(SM_CXICON);
 556           cyicon = GetSystemMetrics(SM_CYICON);
 557           cxsmicon = GetSystemMetrics(SM_CXSMICON);
 558           cysmicon = GetSystemMetrics(SM_CYSMICON);
 559
 560           ret = PrivateExtractIconsW ( lpwstrFile, nIndex, cxicon | (cxsmicon<<16),  cyicon | (cysmicon<<16),
 561           (HICON*) &hIcon, 0, 2, 0 );
 562           *phIconLarge = hIcon[0];
 563           *phIconSmall = hIcon[1];
 564           return ret;
 565         }
 566
 567         if (nIndex != -1)
 568         {
 569           if (phIconSmall)
 570           {
 571             /* extract n small icons */
 572             cxsmicon = GetSystemMetrics(SM_CXSMICON);
 573             cysmicon = GetSystemMetrics(SM_CYSMICON);
 574             ret = PrivateExtractIconsW ( lpwstrFile, nIndex, cxsmicon, cysmicon, phIconSmall, 0, nIcons, 0 );
 575           }
 576           if (phIconLarge )
 577           {
 578             /* extract n large icons */
 579             cxicon = GetSystemMetrics(SM_CXICON);
 580             cyicon = GetSystemMetrics(SM_CYICON);
 581             ret = PrivateExtractIconsW ( lpwstrFile, nIndex, cxicon, cyicon, phIconLarge, 0, nIcons, 0 );
 582           }
 583           return ret;
 584         }
 585
 586         /* get the number of icons */
 587         return PrivateExtractIconsW ( lpwstrFile, 0, 0, 0, 0, 0, 0, 0 );
 588 }
 589
 590 /***********************************************************************
 591  *           PrivateExtractIconExA                      [USER32.442]
 592  */
 593 HRESULT WINAPI PrivateExtractIconExA (
 594         LPCSTR lpstrFile,
 595         DWORD nIndex,
 596         HICON * phIconLarge,
 597         HICON * phIconSmall,
 598         UINT nIcons )
 599 {
 600         DWORD ret;
 601         LPWSTR lpwstrFile = HEAP_strdupAtoW(GetProcessHeap(), 0, lpstrFile);
 602
 603         TRACE("%s 0x%08lx %p %p 0x%08x\n",
 604         lpstrFile, nIndex, phIconLarge, phIconSmall, nIcons);
 605
 606         ret = PrivateExtractIconExW(lpwstrFile,nIndex,phIconLarge, phIconSmall, nIcons);
 607
 608         HeapFree(GetProcessHeap(), 0, lpwstrFile);
 609         return ret;
 610 }
 611