[USER32] Fix the ICO_ExtractIconExW() helper with respect to what is found with the...
[reactos.git] / win32ss / user / user32 / misc / 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 <user32.h>
26
27 #ifndef ARRAY_SIZE
28 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
29 #endif
30
31 /* Start of Hack section */
32
33 WINE_DEFAULT_DEBUG_CHANNEL(icon);
34
35 #include <pshpack1.h>
36
37 typedef struct
38 {
39 BYTE bWidth; /* Width, in pixels, of the image */
40 BYTE bHeight; /* Height, in pixels, of the image */
41 BYTE bColorCount; /* Number of colors in image (0 if >=8bpp) */
42 BYTE bReserved; /* Reserved ( must be 0) */
43 WORD wPlanes; /* Color Planes */
44 WORD wBitCount; /* Bits per pixel */
45 DWORD dwBytesInRes; /* How many bytes in this resource? */
46 DWORD dwImageOffset; /* Where in the file is this image? */
47 } icoICONDIRENTRY, *LPicoICONDIRENTRY;
48
49 typedef struct
50 {
51 WORD idReserved; /* Reserved (must be 0) */
52 WORD idType; /* Resource Type (RES_ICON or RES_CURSOR) */
53 WORD idCount; /* How many images */
54 icoICONDIRENTRY idEntries[1]; /* An entry for each image (idCount of 'em) */
55 } icoICONDIR, *LPicoICONDIR;
56
57 typedef struct
58 {
59 WORD offset;
60 WORD length;
61 WORD flags;
62 WORD id;
63 WORD handle;
64 WORD usage;
65 } NE_NAMEINFO;
66
67 typedef struct
68 {
69 WORD type_id;
70 WORD count;
71 DWORD resloader;
72 } NE_TYPEINFO;
73
74 #define NE_RSCTYPE_ICON 0x8003
75 #define NE_RSCTYPE_GROUP_ICON 0x800e
76
77 #include <poppack.h>
78
79 #if 0
80 static void dumpIcoDirEnty ( LPicoICONDIRENTRY entry )
81 {
82 TRACE("width = 0x%08x height = 0x%08x\n", entry->bWidth, entry->bHeight);
83 TRACE("colors = 0x%08x planes = 0x%08x\n", entry->bColorCount, entry->wPlanes);
84 TRACE("bitcount = 0x%08x bytesinres = 0x%08lx offset = 0x%08lx\n",
85 entry->wBitCount, entry->dwBytesInRes, entry->dwImageOffset);
86 }
87 static void dumpIcoDir ( LPicoICONDIR entry )
88 {
89 TRACE("type = 0x%08x count = 0x%08x\n", entry->idType, entry->idCount);
90 }
91 #endif
92
93 #ifndef WINE
94 DWORD get_best_icon_file_offset(const LPBYTE dir,
95 DWORD dwFileSize,
96 int cxDesired,
97 int cyDesired,
98 BOOL bIcon,
99 DWORD fuLoad,
100 POINT *ptHotSpot);
101 #endif
102
103 /**********************************************************************
104 * find_entry_by_id
105 *
106 * Find an entry by id in a resource directory
107 * Copied from loader/pe_resource.c (FIXME: should use exported resource functions)
108 */
109 static const IMAGE_RESOURCE_DIRECTORY *find_entry_by_id( const IMAGE_RESOURCE_DIRECTORY *dir,
110 WORD id, const void *root )
111 {
112 const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
113 int min, max, pos;
114
115 entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
116 min = dir->NumberOfNamedEntries;
117 max = min + dir->NumberOfIdEntries - 1;
118 while (min <= max)
119 {
120 pos = (min + max) / 2;
121 if (entry[pos].Id == id)
122 return (const IMAGE_RESOURCE_DIRECTORY *)((const char *)root + entry[pos].OffsetToDirectory);
123 if (entry[pos].Id > id) max = pos - 1;
124 else min = pos + 1;
125 }
126 return NULL;
127 }
128
129 /**********************************************************************
130 * find_entry_default
131 *
132 * Find a default entry in a resource directory
133 * Copied from loader/pe_resource.c (FIXME: should use exported resource functions)
134 */
135 static const IMAGE_RESOURCE_DIRECTORY *find_entry_default( const IMAGE_RESOURCE_DIRECTORY *dir,
136 const void *root )
137 {
138 const IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
139 entry = (const IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
140 return (const IMAGE_RESOURCE_DIRECTORY *)((const char *)root + entry->OffsetToDirectory);
141 }
142
143 /*************************************************************************
144 * USER32_GetResourceTable
145 */
146 static DWORD USER32_GetResourceTable(LPBYTE peimage,DWORD pesize,LPBYTE *retptr)
147 {
148 IMAGE_DOS_HEADER * mz_header;
149
150 TRACE("%p %p\n", peimage, retptr);
151
152 *retptr = NULL;
153
154 mz_header = (IMAGE_DOS_HEADER*) peimage;
155
156 if (mz_header->e_magic != IMAGE_DOS_SIGNATURE)
157 {
158 if (mz_header->e_cblp == 1 || mz_header->e_cblp == 2) /* .ICO or .CUR file ? */
159 {
160 *retptr = (LPBYTE)-1; /* ICONHEADER.idType, must be 1 */
161 return mz_header->e_cblp;
162 }
163 else
164 return 0; /* failed */
165 }
166 if (mz_header->e_lfanew >= pesize) {
167 return 0; /* failed, happens with PKZIP DOS Exes for instance. */
168 }
169 if (*((DWORD*)(peimage + mz_header->e_lfanew)) == IMAGE_NT_SIGNATURE )
170 return IMAGE_NT_SIGNATURE;
171
172 if (*((WORD*)(peimage + mz_header->e_lfanew)) == IMAGE_OS2_SIGNATURE )
173 {
174 IMAGE_OS2_HEADER * ne_header;
175
176 ne_header = (IMAGE_OS2_HEADER*)(peimage + mz_header->e_lfanew);
177
178 if (ne_header->ne_magic != IMAGE_OS2_SIGNATURE)
179 return 0;
180
181 if( (ne_header->ne_restab - ne_header->ne_rsrctab) <= sizeof(NE_TYPEINFO) )
182 *retptr = (LPBYTE)-1;
183 else
184 *retptr = peimage + mz_header->e_lfanew + ne_header->ne_rsrctab;
185
186 return IMAGE_OS2_SIGNATURE;
187 }
188 return 0; /* failed */
189 }
190 /*************************************************************************
191 * USER32_LoadResource
192 */
193 static BYTE * USER32_LoadResource( LPBYTE peimage, NE_NAMEINFO* pNInfo, WORD sizeShift, ULONG *uSize)
194 {
195 TRACE("%p %p 0x%08x\n", peimage, pNInfo, sizeShift);
196
197 *uSize = (DWORD)pNInfo->length << sizeShift;
198 return peimage + ((DWORD)pNInfo->offset << sizeShift);
199 }
200
201 /*************************************************************************
202 * ICO_LoadIcon
203 */
204 static BYTE * ICO_LoadIcon( LPBYTE peimage, LPicoICONDIRENTRY lpiIDE, ULONG *uSize)
205 {
206 TRACE("%p %p\n", peimage, lpiIDE);
207
208 *uSize = lpiIDE->dwBytesInRes;
209 return peimage + lpiIDE->dwImageOffset;
210 }
211
212 /*************************************************************************
213 * ICO_GetIconDirectory
214 *
215 * Reads .ico file and build phony ICONDIR struct
216 */
217 static BYTE * ICO_GetIconDirectory( LPBYTE peimage, LPicoICONDIR* lplpiID, ULONG *uSize )
218 {
219 CURSORICONDIR * lpcid; /* icon resource in resource-dir format */
220 CURSORICONDIR * lpID; /* icon resource in resource format */
221 int i;
222
223 TRACE("%p %p\n", peimage, lplpiID);
224
225 lpcid = (CURSORICONDIR*)peimage;
226
227 if( lpcid->idReserved || (lpcid->idType != 1) || (!lpcid->idCount) )
228 return 0;
229
230 /* allocate the phony ICONDIR structure */
231 *uSize = FIELD_OFFSET(CURSORICONDIR, idEntries[lpcid->idCount]);
232 if( (lpID = HeapAlloc(GetProcessHeap(),0, *uSize) ))
233 {
234 /* copy the header */
235 lpID->idReserved = lpcid->idReserved;
236 lpID->idType = lpcid->idType;
237 lpID->idCount = lpcid->idCount;
238
239 /* copy the entries */
240 for( i=0; i < lpcid->idCount; i++ )
241 {
242 memcpy(&lpID->idEntries[i], &lpcid->idEntries[i], sizeof(CURSORICONDIRENTRY) - 2);
243 lpID->idEntries[i].wResId = i;
244 }
245
246 *lplpiID = (LPicoICONDIR)peimage;
247 return (BYTE *)lpID;
248 }
249 return 0;
250 }
251
252 /*************************************************************************
253 * ICO_ExtractIconExW [internal]
254 *
255 * NOTES
256 * nIcons = 0: returns number of Icons in file
257 *
258 * returns
259 * invalid file: -1
260 * failure:0;
261 * success: number of icons in file (nIcons = 0) or nr of icons retrieved
262 */
263 static UINT ICO_ExtractIconExW(
264 LPCWSTR lpszExeFileName,
265 HICON * RetPtr,
266 INT nIconIndex,
267 UINT nIcons,
268 UINT cxDesired,
269 UINT cyDesired,
270 UINT *pIconId,
271 UINT flags)
272 {
273 UINT ret = 0;
274 UINT cx1, cx2, cy1, cy2;
275 LPBYTE pData;
276 DWORD sig;
277 HANDLE hFile;
278 UINT16 iconDirCount = 0,iconCount = 0;
279 LPBYTE peimage;
280 HANDLE fmapping;
281 DWORD fsizeh,fsizel;
282 #ifdef __REACTOS__
283 WCHAR szExpandedExePath[MAX_PATH];
284 #endif
285 WCHAR szExePath[MAX_PATH];
286 DWORD dwSearchReturn;
287
288 TRACE("%s, %d, %d %p 0x%08x\n", debugstr_w(lpszExeFileName), nIconIndex, nIcons, pIconId, flags);
289
290 #ifdef __REACTOS__
291 if (RetPtr)
292 *RetPtr = NULL;
293
294 if (ExpandEnvironmentStringsW(lpszExeFileName, szExpandedExePath, ARRAY_SIZE(szExpandedExePath)))
295 lpszExeFileName = szExpandedExePath;
296 #endif
297
298 dwSearchReturn = SearchPathW(NULL, lpszExeFileName, NULL, ARRAY_SIZE(szExePath), szExePath, NULL);
299 if ((dwSearchReturn == 0) || (dwSearchReturn > ARRAY_SIZE(szExePath)))
300 {
301 WARN("File %s not found or path too long\n", debugstr_w(lpszExeFileName));
302 return -1;
303 }
304
305 hFile = CreateFileW(szExePath, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
306 if (hFile == INVALID_HANDLE_VALUE) return ret;
307 fsizel = GetFileSize(hFile,&fsizeh);
308
309 /* Map the file */
310 fmapping = CreateFileMappingW(hFile, NULL, PAGE_READONLY | SEC_COMMIT, 0, 0, NULL);
311 CloseHandle(hFile);
312 if (!fmapping)
313 {
314 WARN("CreateFileMapping error %ld\n", GetLastError() );
315 return 0xFFFFFFFF;
316 }
317
318 if (!(peimage = MapViewOfFile(fmapping, FILE_MAP_READ, 0, 0, 0)))
319 {
320 WARN("MapViewOfFile error %ld\n", GetLastError() );
321 CloseHandle(fmapping);
322 return 0xFFFFFFFF;
323 }
324 CloseHandle(fmapping);
325
326 cx1 = LOWORD(cxDesired);
327 cx2 = HIWORD(cxDesired);
328 cy1 = LOWORD(cyDesired);
329 cy2 = HIWORD(cyDesired);
330
331 if (pIconId) /* Invalidate first icon identifier */
332 *pIconId = 0xFFFFFFFF;
333
334 if (!pIconId) /* if no icon identifier array present use the icon handle array as intermediate storage */
335 pIconId = (UINT*)RetPtr;
336
337 sig = USER32_GetResourceTable(peimage, fsizel, &pData);
338
339 /* NE exe/dll */
340 if (sig==IMAGE_OS2_SIGNATURE)
341 {
342 BYTE *pCIDir = 0;
343 NE_TYPEINFO *pTInfo = (NE_TYPEINFO*)(pData + 2);
344 NE_NAMEINFO *pIconStorage = NULL;
345 NE_NAMEINFO *pIconDir = NULL;
346 LPicoICONDIR lpiID = NULL;
347 ULONG uSize = 0;
348
349 TRACE("-- OS2/icon Signature (0x%08x)\n", sig);
350
351 if (pData == (BYTE*)-1)
352 {
353 pCIDir = ICO_GetIconDirectory(peimage, &lpiID, &uSize); /* check for .ICO file */
354 if (pCIDir)
355 {
356 iconDirCount = 1; iconCount = lpiID->idCount;
357 TRACE("-- icon found %p 0x%08x 0x%08x 0x%08x\n", pCIDir, uSize, iconDirCount, iconCount);
358 }
359 }
360 else while (pTInfo->type_id && !(pIconStorage && pIconDir))
361 {
362 if (pTInfo->type_id == NE_RSCTYPE_GROUP_ICON) /* find icon directory and icon repository */
363 {
364 iconDirCount = pTInfo->count;
365 pIconDir = ((NE_NAMEINFO*)(pTInfo + 1));
366 TRACE("\tfound directory - %i icon families\n", iconDirCount);
367 }
368 if (pTInfo->type_id == NE_RSCTYPE_ICON)
369 {
370 iconCount = pTInfo->count;
371 pIconStorage = ((NE_NAMEINFO*)(pTInfo + 1));
372 TRACE("\ttotal icons - %i\n", iconCount);
373 }
374 pTInfo = (NE_TYPEINFO *)((char*)(pTInfo+1)+pTInfo->count*sizeof(NE_NAMEINFO));
375 }
376
377 if ((pIconStorage && pIconDir) || lpiID) /* load resources and create icons */
378 {
379 if (nIcons == 0)
380 {
381 ret = iconDirCount;
382 if (lpiID) /* *.ico file, deallocate heap pointer*/
383 HeapFree(GetProcessHeap(), 0, pCIDir);
384 }
385 else if (nIconIndex < iconDirCount)
386 {
387 UINT16 i, icon;
388 if (nIcons > iconDirCount - nIconIndex)
389 nIcons = iconDirCount - nIconIndex;
390
391 for (i = 0; i < nIcons; i++)
392 {
393 /* .ICO files have only one icon directory */
394 if (lpiID == NULL) /* not *.ico */
395 pCIDir = USER32_LoadResource(peimage, pIconDir + i + nIconIndex, *(WORD*)pData, &uSize);
396 pIconId[i] = LookupIconIdFromDirectoryEx(pCIDir, TRUE, cx1, cy1, flags);
397 if (cx2 && cy2) pIconId[++i] = LookupIconIdFromDirectoryEx(pCIDir, TRUE, cx2, cy2, flags);
398 }
399 if (lpiID) /* *.ico file, deallocate heap pointer*/
400 HeapFree(GetProcessHeap(), 0, pCIDir);
401
402 for (icon = 0; icon < nIcons; icon++)
403 {
404 pCIDir = NULL;
405 if (lpiID)
406 pCIDir = ICO_LoadIcon(peimage, lpiID->idEntries + (int)pIconId[icon], &uSize);
407 else
408 for (i = 0; i < iconCount; i++)
409 if (pIconStorage[i].id == ((int)pIconId[icon] | 0x8000) )
410 pCIDir = USER32_LoadResource(peimage, pIconStorage + i, *(WORD*)pData, &uSize);
411
412 if (pCIDir)
413 {
414 RetPtr[icon] = CreateIconFromResourceEx(pCIDir, uSize, TRUE, 0x00030000,
415 cx1, cy1, flags);
416 if (cx2 && cy2)
417 RetPtr[++icon] = CreateIconFromResourceEx(pCIDir, uSize, TRUE, 0x00030000,
418 cx2, cy2, flags);
419 }
420 else
421 RetPtr[icon] = 0;
422 }
423 ret = icon; /* return number of retrieved icons */
424 }
425 }
426 }
427 else
428 if (sig == 1 || sig == 2) /* .ICO or .CUR file */
429 {
430 TRACE("-- icon Signature (0x%08x)\n", sig);
431
432 if (pData == (BYTE*)-1)
433 {
434 INT cx[2] = {cx1, cx2}, cy[2] = {cy1, cy2};
435 INT index;
436
437 for(index = 0; index < (cx2 || cy2 ? 2 : 1); index++)
438 {
439 DWORD dataOffset;
440 LPBYTE imageData;
441 POINT hotSpot;
442 LPICONIMAGE entry;
443
444 dataOffset = get_best_icon_file_offset(peimage, fsizel, cx[index], cy[index], sig == 1, flags, sig == 1 ? NULL : &hotSpot);
445
446 if (dataOffset)
447 {
448 HICON icon;
449 WORD *cursorData = NULL;
450
451 imageData = peimage + dataOffset;
452 entry = (LPICONIMAGE)(imageData);
453
454 if(sig == 2)
455 {
456 /* we need to prepend the bitmap data with hot spots for CreateIconFromResourceEx */
457 cursorData = HeapAlloc(GetProcessHeap(), 0, entry->icHeader.biSizeImage + 2 * sizeof(WORD));
458
459 if(!cursorData)
460 continue;
461
462 cursorData[0] = hotSpot.x;
463 cursorData[1] = hotSpot.y;
464
465 memcpy(cursorData + 2, imageData, entry->icHeader.biSizeImage);
466
467 imageData = (LPBYTE)cursorData;
468 }
469
470 icon = CreateIconFromResourceEx(imageData, entry->icHeader.biSizeImage, sig == 1, 0x00030000, cx[index], cy[index], flags);
471
472 if (icon)
473 {
474 RetPtr[index] = icon;
475 iconCount = 1;
476 }
477
478 if(cursorData != NULL)
479 HeapFree(GetProcessHeap(), 0, cursorData);
480 }
481 }
482
483 }
484 ret = iconCount; /* return number of retrieved icons */
485 }
486 /* end ico file */
487
488 /* exe/dll */
489 else if( sig == IMAGE_NT_SIGNATURE )
490 {
491 BYTE *idata, *igdata;
492 const IMAGE_RESOURCE_DIRECTORY *rootresdir, *iconresdir, *icongroupresdir;
493 const IMAGE_RESOURCE_DATA_ENTRY *idataent, *igdataent;
494 const IMAGE_RESOURCE_DIRECTORY_ENTRY *xresent;
495 ULONG size;
496 UINT i;
497
498 rootresdir = RtlImageDirectoryEntryToData((HMODULE)peimage, FALSE, IMAGE_DIRECTORY_ENTRY_RESOURCE, &size);
499 if (!rootresdir)
500 {
501 WARN("haven't found section for resource directory.\n");
502 goto end;
503 }
504
505 /* search for the group icon directory */
506 if (!(icongroupresdir = find_entry_by_id(rootresdir, LOWORD(RT_GROUP_ICON), rootresdir)))
507 {
508 WARN("No Icongroupresourcedirectory!\n");
509 goto end; /* failure */
510 }
511 iconDirCount = icongroupresdir->NumberOfNamedEntries + icongroupresdir->NumberOfIdEntries;
512
513 /* only number of icons requested */
514 if( !pIconId )
515 {
516 ret = iconDirCount;
517 goto end; /* success */
518 }
519
520 if( nIconIndex < 0 )
521 {
522 /* search resource id */
523 int n = 0;
524 int iId = abs(nIconIndex);
525 const IMAGE_RESOURCE_DIRECTORY_ENTRY* xprdeTmp = (const IMAGE_RESOURCE_DIRECTORY_ENTRY*)(icongroupresdir+1);
526
527 while(n<iconDirCount && xprdeTmp)
528 {
529 if(xprdeTmp->Id == iId)
530 {
531 nIconIndex = n;
532 break;
533 }
534 n++;
535 xprdeTmp++;
536 }
537 if (nIconIndex < 0)
538 {
539 WARN("resource id %d not found\n", iId);
540 goto end; /* failure */
541 }
542 }
543 else
544 {
545 /* check nIconIndex to be in range */
546 if (nIconIndex >= iconDirCount)
547 {
548 WARN("nIconIndex %d is larger than iconDirCount %d\n",nIconIndex,iconDirCount);
549 goto end; /* failure */
550 }
551 }
552
553 /* assure we don't get too much */
554 if( nIcons > iconDirCount - nIconIndex )
555 nIcons = iconDirCount - nIconIndex;
556
557 /* starting from specified index */
558 xresent = (const IMAGE_RESOURCE_DIRECTORY_ENTRY*)(icongroupresdir+1) + nIconIndex;
559
560 for (i=0; i < nIcons; i++,xresent++)
561 {
562 const IMAGE_RESOURCE_DIRECTORY *resdir;
563
564 /* go down this resource entry, name */
565 resdir = (const IMAGE_RESOURCE_DIRECTORY *)((const char *)rootresdir + xresent->OffsetToDirectory);
566
567 /* default language (0) */
568 resdir = find_entry_default(resdir,rootresdir);
569 igdataent = (const IMAGE_RESOURCE_DATA_ENTRY*)resdir;
570
571 /* lookup address in mapped image for virtual address */
572 igdata = RtlImageRvaToVa(RtlImageNtHeader((HMODULE)peimage), (HMODULE)peimage, igdataent->OffsetToData, NULL);
573 if (!igdata)
574 {
575 FIXME("no matching real address for icongroup!\n");
576 goto end; /* failure */
577 }
578 pIconId[i] = LookupIconIdFromDirectoryEx(igdata, TRUE, cx1, cy1, flags);
579 if (cx2 && cy2) pIconId[++i] = LookupIconIdFromDirectoryEx(igdata, TRUE, cx2, cy2, flags);
580 }
581
582 if (!(iconresdir=find_entry_by_id(rootresdir,LOWORD(RT_ICON),rootresdir)))
583 {
584 WARN("No Iconresourcedirectory!\n");
585 goto end; /* failure */
586 }
587
588 for (i=0; i<nIcons; i++)
589 {
590 const IMAGE_RESOURCE_DIRECTORY *xresdir;
591 xresdir = find_entry_by_id(iconresdir, LOWORD(pIconId[i]), rootresdir);
592 if( !xresdir )
593 {
594 WARN("icon entry %d not found\n", LOWORD(pIconId[i]));
595 RetPtr[i]=0;
596 continue;
597 }
598 xresdir = find_entry_default(xresdir, rootresdir);
599 idataent = (const IMAGE_RESOURCE_DATA_ENTRY*)xresdir;
600
601 idata = RtlImageRvaToVa(RtlImageNtHeader((HMODULE)peimage), (HMODULE)peimage, idataent->OffsetToData, NULL);
602 if (!idata)
603 {
604 WARN("no matching real address found for icondata!\n");
605 RetPtr[i]=0;
606 continue;
607 }
608 RetPtr[i] = CreateIconFromResourceEx(idata, idataent->Size, TRUE, 0x00030000, cx1, cy1, flags);
609 if (cx2 && cy2)
610 RetPtr[++i] = CreateIconFromResourceEx(idata, idataent->Size, TRUE, 0x00030000, cx2, cy2, flags);
611 }
612 ret = i; /* return number of retrieved icons */
613 } /* if(sig == IMAGE_NT_SIGNATURE) */
614
615 end:
616 UnmapViewOfFile(peimage); /* success */
617 return ret;
618 }
619
620 /***********************************************************************
621 * PrivateExtractIconsW [USER32.@]
622 *
623 * NOTES
624 * If HIWORD(sizeX) && HIWORD(sizeY) 2 * ((nIcons + 1) MOD 2) icons are
625 * returned, with the LOWORD size icon first and the HIWORD size icon
626 * second.
627 * Also the Windows equivalent does extract icons in a strange way if
628 * nIndex is negative. Our implementation treats a negative nIndex as
629 * looking for that resource identifier for the first icon to retrieve.
630 *
631 * FIXME:
632 * should also support 16 bit EXE + DLLs, cursor and animated cursor as
633 * well as bitmap files.
634 */
635
636 UINT WINAPI PrivateExtractIconsW (
637 LPCWSTR lpwstrFile,
638 int nIndex,
639 int sizeX,
640 int sizeY,
641 HICON * phicon, /* [out] pointer to array of nIcons HICON handles */
642 UINT* pIconId, /* [out] pointer to array of nIcons icon identifiers or NULL */
643 UINT nIcons, /* [in] number of icons to retrieve */
644 UINT flags ) /* [in] LR_* flags used by LoadImage */
645 {
646 TRACE("%s %d %dx%d %p %p %d 0x%08x\n",
647 debugstr_w(lpwstrFile), nIndex, sizeX, sizeY, phicon, pIconId, nIcons, flags);
648
649 if ((nIcons & 1) && HIWORD(sizeX) && HIWORD(sizeY))
650 {
651 WARN("Uneven number %d of icons requested for small and large icons!\n", nIcons);
652 }
653 return ICO_ExtractIconExW(lpwstrFile, phicon, nIndex, nIcons, sizeX, sizeY, pIconId, flags);
654 }
655
656 /***********************************************************************
657 * PrivateExtractIconsA [USER32.@]
658 */
659
660 UINT WINAPI PrivateExtractIconsA (
661 LPCSTR lpstrFile,
662 int nIndex,
663 int sizeX,
664 int sizeY,
665 HICON * phicon, /* [out] pointer to array of nIcons HICON handles */
666 UINT* piconid, /* [out] pointer to array of nIcons icon identifiers or NULL */
667 UINT nIcons, /* [in] number of icons to retrieve */
668 UINT flags ) /* [in] LR_* flags used by LoadImage */
669 {
670 UINT ret;
671 INT len = MultiByteToWideChar(CP_ACP, 0, lpstrFile, -1, NULL, 0);
672 LPWSTR lpwstrFile = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
673 #ifdef __REACTOS__
674 if (lpwstrFile == NULL)
675 return 0;
676 #endif
677
678 MultiByteToWideChar(CP_ACP, 0, lpstrFile, -1, lpwstrFile, len);
679 ret = PrivateExtractIconsW(lpwstrFile, nIndex, sizeX, sizeY, phicon, piconid, nIcons, flags);
680
681 HeapFree(GetProcessHeap(), 0, lpwstrFile);
682 return ret;
683 }
684
685 /***********************************************************************
686 * PrivateExtractIconExW [USER32.@]
687 * NOTES
688 * if nIndex == -1 it returns the number of icons in any case !!!
689 */
690 UINT WINAPI PrivateExtractIconExW (
691 LPCWSTR lpwstrFile,
692 int nIndex,
693 HICON * phIconLarge,
694 HICON * phIconSmall,
695 UINT nIcons )
696 {
697 DWORD cyicon, cysmicon, cxicon, cxsmicon;
698 UINT ret = 0;
699
700 TRACE("%s %d %p %p %d\n",
701 debugstr_w(lpwstrFile),nIndex,phIconLarge, phIconSmall, nIcons);
702
703 if (nIndex == -1)
704 /* get the number of icons */
705 return ICO_ExtractIconExW(lpwstrFile, NULL, 0, 0, 0, 0, NULL, LR_DEFAULTCOLOR);
706
707 if (nIcons == 1 && phIconSmall && phIconLarge)
708 {
709 HICON hIcon[2];
710 cxicon = GetSystemMetrics(SM_CXICON);
711 cyicon = GetSystemMetrics(SM_CYICON);
712 cxsmicon = GetSystemMetrics(SM_CXSMICON);
713 cysmicon = GetSystemMetrics(SM_CYSMICON);
714
715 ret = ICO_ExtractIconExW(lpwstrFile, hIcon, nIndex, 2, cxicon | (cxsmicon<<16),
716 cyicon | (cysmicon<<16), NULL, LR_DEFAULTCOLOR);
717 *phIconLarge = hIcon[0];
718 *phIconSmall = hIcon[1];
719 return ret;
720 }
721
722 if (phIconSmall)
723 {
724 /* extract n small icons */
725 cxsmicon = GetSystemMetrics(SM_CXSMICON);
726 cysmicon = GetSystemMetrics(SM_CYSMICON);
727 ret = ICO_ExtractIconExW(lpwstrFile, phIconSmall, nIndex, nIcons, cxsmicon,
728 cysmicon, NULL, LR_DEFAULTCOLOR);
729 }
730 if (phIconLarge)
731 {
732 /* extract n large icons */
733 cxicon = GetSystemMetrics(SM_CXICON);
734 cyicon = GetSystemMetrics(SM_CYICON);
735 ret = ICO_ExtractIconExW(lpwstrFile, phIconLarge, nIndex, nIcons, cxicon,
736 cyicon, NULL, LR_DEFAULTCOLOR);
737 }
738 return ret;
739 }
740
741 /***********************************************************************
742 * PrivateExtractIconExA [USER32.@]
743 */
744 UINT WINAPI PrivateExtractIconExA (
745 LPCSTR lpstrFile,
746 int nIndex,
747 HICON * phIconLarge,
748 HICON * phIconSmall,
749 UINT nIcons )
750 {
751 UINT ret;
752 INT len = MultiByteToWideChar(CP_ACP, 0, lpstrFile, -1, NULL, 0);
753 LPWSTR lpwstrFile = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
754 #ifdef __REACTOS__
755 if (lpwstrFile == NULL)
756 return 0;
757 #endif
758
759 TRACE("%s %d %p %p %d\n", lpstrFile, nIndex, phIconLarge, phIconSmall, nIcons);
760
761 MultiByteToWideChar(CP_ACP, 0, lpstrFile, -1, lpwstrFile, len);
762 ret = PrivateExtractIconExW(lpwstrFile, nIndex, phIconLarge, phIconSmall, nIcons);
763 HeapFree(GetProcessHeap(), 0, lpwstrFile);
764 return ret;
765 }