git.oblomov.eu Git - wine/blob - 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 <stdlib.h>     /* abs() */
  10 #include <sys/types.h>
  11 #include <unistd.h>
  12 #include "winbase.h"
  13 #include "windef.h"
  14 #include "winerror.h"
  15 #include "wingdi.h"
  16 #include "winuser.h"
  17 #include "wine/winbase16.h"
  18 #include "cursoricon.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 /**********************************************************************
  63  *  find_entry_by_id
  64  *
  65  * Find an entry by id in a resource directory
  66  * Copied from loader/pe_resource.c (FIXME: should use exported resource functions)
  67  */
  68 static const IMAGE_RESOURCE_DIRECTORY *find_entry_by_id( const IMAGE_RESOURCE_DIRECTORY *dir,
  69                                                          WORD id, const void *root )
  70 {
  71     const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
  72     int min, max, pos;
  73
  74     entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
  75     min = dir->NumberOfNamedEntries;
  76     max = min + dir->NumberOfIdEntries - 1;
  77     while (min <= max)
  78     {
  79         pos = (min + max) / 2;
  80         if (entry[pos].u1.Id == id)
  81             return (IMAGE_RESOURCE_DIRECTORY *)((char *)root + entry[pos].u2.s2.OffsetToDirectory);
  82         if (entry[pos].u1.Id > id) max = pos - 1;
  83         else min = pos + 1;
  84     }
  85     return NULL;
  86 }
  87
  88 /**********************************************************************
  89  *  find_entry_default
  90  *
  91  * Find a default entry in a resource directory
  92  * Copied from loader/pe_resource.c (FIXME: should use exported resource functions)
  93  */
  94 static const IMAGE_RESOURCE_DIRECTORY *find_entry_default( const IMAGE_RESOURCE_DIRECTORY *dir,
  95                                                            const void *root )
  96 {
  97     const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
  98     entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
  99     return (IMAGE_RESOURCE_DIRECTORY *)((char *)root + entry->u2.s2.OffsetToDirectory);
 100 }
 101
 102 /*************************************************************************
 103  *                              USER32_GetResourceTable
 104  */
 105 static DWORD USER32_GetResourceTable(LPBYTE peimage,DWORD pesize,LPBYTE *retptr)
 106 {
 107         IMAGE_DOS_HEADER        * mz_header;
 108
 109         TRACE("%p %p\n", peimage, retptr);
 110
 111         *retptr = NULL;
 112
 113         mz_header = (IMAGE_DOS_HEADER*) peimage;
 114
 115         if (mz_header->e_magic != IMAGE_DOS_SIGNATURE)
 116         {
 117           if (mz_header->e_cblp == 1)   /* .ICO file ? */
 118           {
 119             *retptr = (LPBYTE)-1;       /* ICONHEADER.idType, must be 1 */
 120             return 1;
 121           }
 122           else
 123             return 0; /* failed */
 124         }
 125         if (mz_header->e_lfanew >= pesize) {
 126             return 0; /* failed, happens with PKZIP DOS Exes for instance. */
 127         }
 128         if (*((DWORD*)(peimage + mz_header->e_lfanew)) == IMAGE_NT_SIGNATURE )
 129           return IMAGE_NT_SIGNATURE;
 130
 131         if (*((WORD*)(peimage + mz_header->e_lfanew)) == IMAGE_OS2_SIGNATURE )
 132         {
 133           IMAGE_OS2_HEADER      * ne_header;
 134
 135           ne_header = (IMAGE_OS2_HEADER*)(peimage + mz_header->e_lfanew);
 136
 137           if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE)
 138             return 0;
 139
 140           if( (ne_header->ne_restab - ne_header->ne_rsrctab) <= sizeof(NE_TYPEINFO) )
 141             *retptr = (LPBYTE)-1;
 142           else
 143             *retptr = peimage + mz_header->e_lfanew + ne_header->ne_rsrctab;
 144
 145           return IMAGE_OS2_SIGNATURE;
 146         }
 147         return 0; /* failed */
 148 }
 149 /*************************************************************************
 150  *                      USER32_LoadResource
 151  */
 152 static BYTE * USER32_LoadResource( LPBYTE peimage, NE_NAMEINFO* pNInfo, WORD sizeShift, ULONG *uSize)
 153 {
 154         TRACE("%p %p 0x%08x\n", peimage, pNInfo, sizeShift);
 155
 156         *uSize = (DWORD)pNInfo->length << sizeShift;
 157         return peimage + ((DWORD)pNInfo->offset << sizeShift);
 158 }
 159
 160 /*************************************************************************
 161  *                      ICO_LoadIcon
 162  */
 163 static BYTE * ICO_LoadIcon( LPBYTE peimage, LPicoICONDIRENTRY lpiIDE, ULONG *uSize)
 164 {
 165         TRACE("%p %p\n", peimage, lpiIDE);
 166
 167         *uSize = lpiIDE->dwBytesInRes;
 168         return peimage + lpiIDE->dwImageOffset;
 169 }
 170
 171 /*************************************************************************
 172  *                      ICO_GetIconDirectory
 173  *
 174  * Reads .ico file and build phony ICONDIR struct
 175  * see http://www.microsoft.com/win32dev/ui/icons.htm
 176  */
 177 #define HEADER_SIZE             (sizeof(CURSORICONDIR) - sizeof (CURSORICONDIRENTRY))
 178 #define HEADER_SIZE_FILE        (sizeof(icoICONDIR) - sizeof (icoICONDIRENTRY))
 179
 180 static BYTE * ICO_GetIconDirectory( LPBYTE peimage, LPicoICONDIR* lplpiID, ULONG *uSize )
 181 {
 182         CURSORICONDIR   * lpcid;        /* icon resource in resource-dir format */
 183         CURSORICONDIR   * lpID;         /* icon resource in resource format */
 184         int             i;
 185
 186         TRACE("%p %p\n", peimage, lplpiID);
 187
 188         lpcid = (CURSORICONDIR*)peimage;
 189
 190         if( lpcid->idReserved || (lpcid->idType != 1) || (!lpcid->idCount) )
 191           return 0;
 192
 193         /* allocate the phony ICONDIR structure */
 194         *uSize = lpcid->idCount * sizeof(CURSORICONDIRENTRY) + HEADER_SIZE;
 195         if( (lpID = (CURSORICONDIR*)HeapAlloc(GetProcessHeap(),0, *uSize) ))
 196         {
 197           /* copy the header */
 198           lpID->idReserved = lpcid->idReserved;
 199           lpID->idType = lpcid->idType;
 200           lpID->idCount = lpcid->idCount;
 201
 202           /* copy the entrys */
 203           for( i=0; i < lpcid->idCount; i++ )
 204           {
 205             memcpy((void*)&(lpID->idEntries[i]),(void*)&(lpcid->idEntries[i]), sizeof(CURSORICONDIRENTRY) - 2);
 206             lpID->idEntries[i].wResId = i;
 207           }
 208
 209           *lplpiID = (LPicoICONDIR)peimage;
 210           return (BYTE *)lpID;
 211         }
 212         return 0;
 213 }
 214
 215 /*************************************************************************
 216  *      ICO_ExtractIconExW              [internal]
 217  *
 218  * NOTES
 219  *  nIcons = 0: returns number of Icons in file
 220  *
 221  * returns
 222  *  failure:0; success: icon handle or nr of icons (nIconIndex-1)
 223  */
 224 static HRESULT ICO_ExtractIconExW(
 225         LPCWSTR lpszExeFileName,
 226         HICON * RetPtr,
 227         INT nIconIndex,
 228         UINT nIcons,
 229         UINT cxDesired,
 230         UINT cyDesired )
 231 {
 232         HGLOBAL         hRet = E_FAIL;
 233         LPBYTE          pData;
 234         DWORD           sig;
 235         HFILE           hFile;
 236         UINT16          iconDirCount = 0,iconCount = 0;
 237         LPBYTE          peimage;
 238         HANDLE          fmapping;
 239         ULONG           uSize;
 240         DWORD           fsizeh,fsizel;
 241
 242         TRACE("(file %s,start %d,extract %d\n", debugstr_w(lpszExeFileName), nIconIndex, nIcons);
 243
 244         hFile = CreateFileW( lpszExeFileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, -1 );
 245         if (hFile == INVALID_HANDLE_VALUE) return hRet;
 246         fsizel = GetFileSize(hFile,&fsizeh);
 247
 248         /* Map the file */
 249         fmapping = CreateFileMappingA( hFile, NULL, PAGE_READONLY | SEC_COMMIT, 0, 0, NULL );
 250         CloseHandle( hFile );
 251         if (!fmapping)
 252         {
 253           WARN("CreateFileMapping error %ld\n", GetLastError() );
 254           return hRet;
 255         }
 256
 257         if ( !(peimage = MapViewOfFile(fmapping,FILE_MAP_READ,0,0,0)))
 258         {
 259           WARN("MapViewOfFile error %ld\n", GetLastError() );
 260           CloseHandle( fmapping );
 261           return hRet;
 262         }
 263         CloseHandle( fmapping );
 264
 265         sig = USER32_GetResourceTable(peimage,fsizel,&pData);
 266
 267 /* ico file */
 268         if( sig==IMAGE_OS2_SIGNATURE || sig==1 ) /* .ICO file */
 269         {
 270           BYTE          *pCIDir = 0;
 271           NE_TYPEINFO   *pTInfo = (NE_TYPEINFO*)(pData + 2);
 272           NE_NAMEINFO   *pIconStorage = NULL;
 273           NE_NAMEINFO   *pIconDir = NULL;
 274           LPicoICONDIR  lpiID = NULL;
 275
 276           TRACE("-- OS2/icon Signature (0x%08lx)\n", sig);
 277
 278           if( pData == (BYTE*)-1 )
 279           {
 280             /* FIXME: pCIDir is allocated on the heap - memory leak */
 281             pCIDir = ICO_GetIconDirectory(peimage, &lpiID, &uSize);     /* check for .ICO file */
 282             if( pCIDir )
 283             {
 284               iconDirCount = 1; iconCount = lpiID->idCount;
 285               TRACE("-- icon found %p 0x%08lx 0x%08x 0x%08x\n", pCIDir, uSize, iconDirCount, iconCount);
 286             }
 287           }
 288           else while( pTInfo->type_id && !(pIconStorage && pIconDir) )
 289           {
 290             if( pTInfo->type_id == NE_RSCTYPE_GROUP_ICON )      /* find icon directory and icon repository */
 291             {
 292               iconDirCount = pTInfo->count;
 293               pIconDir = ((NE_NAMEINFO*)(pTInfo + 1));
 294               TRACE("\tfound directory - %i icon families\n", iconDirCount);
 295             }
 296             if( pTInfo->type_id == NE_RSCTYPE_ICON )
 297             {
 298               iconCount = pTInfo->count;
 299               pIconStorage = ((NE_NAMEINFO*)(pTInfo + 1));
 300               TRACE("\ttotal icons - %i\n", iconCount);
 301             }
 302             pTInfo = (NE_TYPEINFO *)((char*)(pTInfo+1)+pTInfo->count*sizeof(NE_NAMEINFO));
 303           }
 304
 305           if( (pIconStorage && pIconDir) || lpiID )       /* load resources and create icons */
 306           {
 307             if( nIcons == 0 )
 308             {
 309               hRet = iconDirCount;
 310             }
 311             else if( nIconIndex < iconDirCount )
 312             {
 313               UINT16   i, icon;
 314               if( nIcons > iconDirCount - nIconIndex )
 315                 nIcons = iconDirCount - nIconIndex;
 316
 317               for( i = nIconIndex; i < nIconIndex + nIcons; i++ )
 318               {
 319                 /* .ICO files have only one icon directory */
 320                 if( lpiID == NULL )     /* *.ico */
 321                   pCIDir = USER32_LoadResource( peimage, pIconDir + i, *(WORD*)pData, &uSize );
 322                 RetPtr[i-nIconIndex] = LookupIconIdFromDirectoryEx( pCIDir, TRUE, cxDesired, cyDesired, 0);
 323               }
 324
 325               for( icon = nIconIndex; icon < nIconIndex + nIcons; icon++ )
 326               {
 327                 pCIDir = NULL;
 328                 if( lpiID )
 329                   pCIDir = ICO_LoadIcon( peimage, lpiID->idEntries + RetPtr[icon-nIconIndex], &uSize);
 330                 else
 331                   for( i = 0; i < iconCount; i++ )
 332                     if( pIconStorage[i].id == (RetPtr[icon-nIconIndex] | 0x8000) )
 333                       pCIDir = USER32_LoadResource( peimage, pIconStorage + i,*(WORD*)pData, &uSize );
 334
 335                 if( pCIDir )
 336                   RetPtr[icon-nIconIndex] = (HICON) CreateIconFromResourceEx(pCIDir,uSize,TRUE,0x00030000, cxDesired, cyDesired, LR_DEFAULTCOLOR);
 337                 else
 338                   RetPtr[icon-nIconIndex] = 0;
 339               }
 340               hRet = S_OK;
 341             }
 342           }
 343         }
 344 /* end ico file */
 345
 346 /* exe/dll */
 347         else if( sig == IMAGE_NT_SIGNATURE )
 348         {
 349           LPBYTE                idata,igdata;
 350           PIMAGE_DOS_HEADER     dheader;
 351           PIMAGE_NT_HEADERS     pe_header;
 352           PIMAGE_SECTION_HEADER pe_sections;
 353           const IMAGE_RESOURCE_DIRECTORY *rootresdir,*iconresdir,*icongroupresdir;
 354           const IMAGE_RESOURCE_DATA_ENTRY *idataent,*igdataent;
 355           const IMAGE_RESOURCE_DIRECTORY_ENTRY *xresent;
 356           int                   i,j;
 357
 358           dheader = (PIMAGE_DOS_HEADER)peimage;
 359           pe_header = (PIMAGE_NT_HEADERS)(peimage+dheader->e_lfanew);     /* it is a pe header, USER32_GetResourceTable checked that */
 360           pe_sections = (PIMAGE_SECTION_HEADER)(((char*)pe_header)+sizeof(*pe_header)); /* probably makes problems with short PE headers...*/
 361           rootresdir = NULL;
 362
 363           /* search for the root resource directory */
 364           for (i=0;i<pe_header->FileHeader.NumberOfSections;i++)
 365           {
 366             if (pe_sections[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
 367               continue;
 368             if (fsizel < pe_sections[i].PointerToRawData+pe_sections[i].SizeOfRawData) {
 369               FIXME("File %s too short (section is at %ld bytes, real size is %ld)\n",
 370                       debugstr_w(lpszExeFileName),
 371                       pe_sections[i].PointerToRawData+pe_sections[i].SizeOfRawData,
 372                       fsizel
 373               );
 374               goto end;
 375             }
 376             /* FIXME: doesn't work when the resources are not in a seperate section */
 377             if (pe_sections[i].VirtualAddress == pe_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress)
 378             {
 379               rootresdir = (PIMAGE_RESOURCE_DIRECTORY)(peimage+pe_sections[i].PointerToRawData);
 380               break;
 381             }
 382           }
 383
 384           if (!rootresdir)
 385           {
 386             WARN("haven't found section for resource directory.\n");
 387             goto end;           /* failure */
 388           }
 389
 390           /* search for the group icon directory */
 391           if (!(icongroupresdir = find_entry_by_id(rootresdir, LOWORD(RT_GROUP_ICONW), rootresdir)))
 392           {
 393             WARN("No Icongroupresourcedirectory!\n");
 394             goto end;           /* failure */
 395           }
 396           iconDirCount = icongroupresdir->NumberOfNamedEntries + icongroupresdir->NumberOfIdEntries;
 397
 398           /* only number of icons requested */
 399           if( nIcons == 0 )
 400           {
 401             hRet = iconDirCount;
 402             goto end;           /* success */
 403           }
 404
 405           if( nIconIndex < 0 )
 406           {
 407             /* search resource id */
 408             int n = 0;
 409             int iId = abs(nIconIndex);
 410             PIMAGE_RESOURCE_DIRECTORY_ENTRY xprdeTmp = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(icongroupresdir+1);
 411
 412             while(n<iconDirCount && xprdeTmp)
 413             {
 414               if(xprdeTmp->u1.Id ==  iId)
 415               {
 416                   nIconIndex = n;
 417                   break;
 418               }
 419               n++;
 420               xprdeTmp++;
 421             }
 422             if (nIconIndex < 0)
 423             {
 424               WARN("resource id %d not found\n", iId);
 425               goto end;         /* failure */
 426             }
 427           }
 428           else
 429           {
 430             /* check nIconIndex to be in range */
 431             if (nIconIndex >= iconDirCount)
 432             {
 433               WARN("nIconIndex %d is larger than iconDirCount %d\n",nIconIndex,iconDirCount);
 434               goto end;         /* failure */
 435             }
 436           }
 437
 438           /* assure we don't get too much */
 439           if( nIcons > iconDirCount - nIconIndex )
 440             nIcons = iconDirCount - nIconIndex;
 441
 442           /* starting from specified index */
 443           xresent = (PIMAGE_RESOURCE_DIRECTORY_ENTRY)(icongroupresdir+1) + nIconIndex;
 444
 445           for (i=0; i < nIcons; i++,xresent++)
 446           {
 447               const IMAGE_RESOURCE_DIRECTORY *resdir;
 448
 449             /* go down this resource entry, name */
 450             resdir = (PIMAGE_RESOURCE_DIRECTORY)((DWORD)rootresdir+(xresent->u2.s2.OffsetToDirectory));
 451
 452             /* default language (0) */
 453             resdir = find_entry_default(resdir,rootresdir);
 454             igdataent = (PIMAGE_RESOURCE_DATA_ENTRY)resdir;
 455
 456             /* lookup address in mapped image for virtual address */
 457             igdata = NULL;
 458
 459             for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
 460             {
 461               if (igdataent->OffsetToData < pe_sections[j].VirtualAddress)
 462                 continue;
 463               if (igdataent->OffsetToData+igdataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
 464                 continue;
 465
 466               if (igdataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData+igdataent->Size > fsizel) {
 467                   FIXME("overflow in PE lookup (%s has len %ld, have offset %ld), short file?\n",debugstr_w(lpszExeFileName),fsizel,igdataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData+igdataent->Size);
 468                   goto end; /* failure */
 469               }
 470               igdata = peimage+(igdataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
 471             }
 472
 473             if (!igdata)
 474             {
 475               FIXME("no matching real address for icongroup!\n");
 476               goto end; /* failure */
 477             }
 478             RetPtr[i] = (HICON)LookupIconIdFromDirectoryEx(igdata, TRUE, cxDesired, cyDesired, LR_DEFAULTCOLOR);
 479           }
 480
 481           if (!(iconresdir=find_entry_by_id(rootresdir,LOWORD(RT_ICONW),rootresdir)))
 482           {
 483             WARN("No Iconresourcedirectory!\n");
 484             goto end;           /* failure */
 485           }
 486
 487           for (i=0; i<nIcons; i++)
 488           {
 489               const IMAGE_RESOURCE_DIRECTORY *xresdir;
 490               xresdir = find_entry_by_id(iconresdir,RetPtr[i],rootresdir);
 491               xresdir = find_entry_default(xresdir,rootresdir);
 492             idataent = (PIMAGE_RESOURCE_DATA_ENTRY)xresdir;
 493             idata = NULL;
 494
 495             /* map virtual to address in image */
 496             for (j=0;j<pe_header->FileHeader.NumberOfSections;j++)
 497             {
 498               if (idataent->OffsetToData < pe_sections[j].VirtualAddress)
 499                 continue;
 500               if (idataent->OffsetToData+idataent->Size > pe_sections[j].VirtualAddress+pe_sections[j].SizeOfRawData)
 501                 continue;
 502               idata = peimage+(idataent->OffsetToData-pe_sections[j].VirtualAddress+pe_sections[j].PointerToRawData);
 503             }
 504             if (!idata)
 505             {
 506               WARN("no matching real address found for icondata!\n");
 507               RetPtr[i]=0;
 508               continue;
 509             }
 510             RetPtr[i] = (HICON) CreateIconFromResourceEx(idata,idataent->Size,TRUE,0x00030000, cxDesired, cyDesired, LR_DEFAULTCOLOR);
 511           }
 512           hRet = S_OK;  /* return first icon */
 513         }                       /* if(sig == IMAGE_NT_SIGNATURE) */
 514
 515 end:    UnmapViewOfFile(peimage);       /* success */
 516         return hRet;
 517 }
 518
 519 /***********************************************************************
 520  *           PrivateExtractIconsW                       [USER32.@]
 521  *
 522  * NOTES
 523  *  nIndex = 1: a small and a large icon are extracted.
 524  *  the higher word of sizeXY contains the size of the small icon, the lower
 525  *  word the size of the big icon. phicon points to HICON[2].
 526  *
 527  * RETURNS
 528  *  nIcons > 0: HRESULT
 529  *  nIcons = 0: the number of icons
 530  */
 531
 532 HRESULT WINAPI PrivateExtractIconsW (
 533         LPCWSTR lpwstrFile,
 534         int nIndex,
 535         DWORD sizeX,
 536         DWORD sizeY,
 537         HICON * phicon, /* [???] NOTE: HICON* */
 538         DWORD w,        /* [in] NOTE: 0 */
 539         UINT nIcons,
 540         DWORD y )       /* [in] NOTE: 0x80 maybe LR_* constant */
 541 {
 542         DWORD ret;
 543         TRACE("%s 0x%08x 0x%08lx 0x%08lx %p 0x%08lx 0x%08x 0x%08lx\n",
 544         debugstr_w(lpwstrFile),nIndex, sizeX ,sizeY ,phicon,w,nIcons,y );
 545
 546         if ((nIcons == 2) && HIWORD(sizeX) && HIWORD(sizeY))
 547         {
 548           ret = ICO_ExtractIconExW(lpwstrFile, phicon, nIndex, 1, sizeX & 0xffff, sizeY & 0xffff );
 549           if (!SUCCEEDED(ret)) return ret;
 550           ret = ICO_ExtractIconExW(lpwstrFile, phicon+1, nIndex, 1, (sizeX>>16) & 0xffff, (sizeY>>16) & 0xffff );
 551         } else
 552           ret = ICO_ExtractIconExW(lpwstrFile, phicon, nIndex, nIcons, sizeX & 0xffff, sizeY & 0xffff );
 553         return ret;
 554 }
 555
 556 /***********************************************************************
 557  *           PrivateExtractIconsA                       [USER32.@]
 558  */
 559
 560 HRESULT WINAPI PrivateExtractIconsA (
 561         LPCSTR lpstrFile,
 562         INT nIndex,
 563         DWORD sizeX,
 564         DWORD sizeY,
 565         HICON * phicon,
 566         DWORD w,        /* [in] NOTE: 0 */
 567         UINT  nIcons,
 568         DWORD y )       /* [in] NOTE: 0x80 */
 569 {
 570         DWORD ret;
 571         LPWSTR lpwstrFile = HEAP_strdupAtoW(GetProcessHeap(), 0, lpstrFile);
 572
 573         ret = PrivateExtractIconsW(
 574                 lpwstrFile, nIndex, sizeX, sizeY, phicon, w, nIcons, y
 575         );
 576
 577         HeapFree(GetProcessHeap(), 0, lpwstrFile);
 578         return ret;
 579 }
 580
 581 /***********************************************************************
 582  *           PrivateExtractIconExW                      [USER32.443]
 583  * NOTES
 584  *  if nIcons = -1 it returns the number of icons in any case !!!
 585  */
 586 HRESULT WINAPI PrivateExtractIconExW (
 587         LPCWSTR lpwstrFile,
 588         DWORD nIndex,
 589         HICON * phIconLarge,
 590         HICON * phIconSmall,
 591         UINT nIcons )
 592 {
 593         DWORD cyicon, cysmicon, cxicon, cxsmicon;
 594         HRESULT ret = 0;
 595
 596         TRACE("%s 0x%08lx %p %p 0x%08x\n",
 597         debugstr_w(lpwstrFile),nIndex,phIconLarge, phIconSmall, nIcons);
 598
 599         if (nIndex == 1 && phIconSmall && phIconLarge)
 600         {
 601           HICON hIcon[2];
 602           cxicon = GetSystemMetrics(SM_CXICON);
 603           cyicon = GetSystemMetrics(SM_CYICON);
 604           cxsmicon = GetSystemMetrics(SM_CXSMICON);
 605           cysmicon = GetSystemMetrics(SM_CYSMICON);
 606
 607           ret = PrivateExtractIconsW ( lpwstrFile, nIndex, cxicon | (cxsmicon<<16),  cyicon | (cysmicon<<16),
 608           (HICON*) &hIcon, 0, 2, 0 );
 609           *phIconLarge = hIcon[0];
 610           *phIconSmall = hIcon[1];
 611           return ret;
 612         }
 613
 614         if (nIndex != -1)
 615         {
 616           if (phIconSmall)
 617           {
 618             /* extract n small icons */
 619             cxsmicon = GetSystemMetrics(SM_CXSMICON);
 620             cysmicon = GetSystemMetrics(SM_CYSMICON);
 621             ret = PrivateExtractIconsW ( lpwstrFile, nIndex, cxsmicon, cysmicon, phIconSmall, 0, nIcons, 0 );
 622           }
 623           if (phIconLarge )
 624           {
 625             /* extract n large icons */
 626             cxicon = GetSystemMetrics(SM_CXICON);
 627             cyicon = GetSystemMetrics(SM_CYICON);
 628             ret = PrivateExtractIconsW ( lpwstrFile, nIndex, cxicon, cyicon, phIconLarge, 0, nIcons, 0 );
 629           }
 630           return ret;
 631         }
 632
 633         /* get the number of icons */
 634         return PrivateExtractIconsW ( lpwstrFile, 0, 0, 0, 0, 0, 0, 0 );
 635 }
 636
 637 /***********************************************************************
 638  *           PrivateExtractIconExA                      [USER32.442]
 639  */
 640 HRESULT WINAPI PrivateExtractIconExA (
 641         LPCSTR lpstrFile,
 642         DWORD nIndex,
 643         HICON * phIconLarge,
 644         HICON * phIconSmall,
 645         UINT nIcons )
 646 {
 647         DWORD ret;
 648         LPWSTR lpwstrFile = HEAP_strdupAtoW(GetProcessHeap(), 0, lpstrFile);
 649
 650         TRACE("%s 0x%08lx %p %p 0x%08x\n",
 651         lpstrFile, nIndex, phIconLarge, phIconSmall, nIcons);
 652
 653         ret = PrivateExtractIconExW(lpwstrFile,nIndex,phIconLarge, phIconSmall, nIcons);
 654
 655         HeapFree(GetProcessHeap(), 0, lpwstrFile);
 656         return ret;
 657 }
 658