user32: Implement SystemParametersInfo(SPI_GETWORKAREA) properly.
[wine] / dlls / shell32 / shell32_main.c
1 /*
2  *                 Shell basics
3  *
4  * Copyright 1998 Marcus Meissner
5  * Copyright 1998 Juergen Schmied (jsch)  *  <juergen.schmied@metronet.de>
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this library; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20  */
21
22 #include "config.h"
23
24 #include <stdlib.h>
25 #include <string.h>
26 #include <stdarg.h>
27 #include <stdio.h>
28
29 #define COBJMACROS
30
31 #include "windef.h"
32 #include "winbase.h"
33 #include "winerror.h"
34 #include "winreg.h"
35 #include "dlgs.h"
36 #include "shellapi.h"
37 #include "winuser.h"
38 #include "wingdi.h"
39 #include "shlobj.h"
40 #include "shlwapi.h"
41
42 #include "undocshell.h"
43 #include "pidl.h"
44 #include "shell32_main.h"
45 #include "version.h"
46 #include "shresdef.h"
47
48 #include "wine/debug.h"
49 #include "wine/unicode.h"
50
51 WINE_DEFAULT_DEBUG_CHANNEL(shell);
52
53 extern const char * const SHELL_Authors[];
54
55 #define MORE_DEBUG 1
56 /*************************************************************************
57  * CommandLineToArgvW            [SHELL32.@]
58  *
59  * We must interpret the quotes in the command line to rebuild the argv
60  * array correctly:
61  * - arguments are separated by spaces or tabs
62  * - quotes serve as optional argument delimiters
63  *   '"a b"'   -> 'a b'
64  * - escaped quotes must be converted back to '"'
65  *   '\"'      -> '"'
66  * - an odd number of '\'s followed by '"' correspond to half that number
67  *   of '\' followed by a '"' (extension of the above)
68  *   '\\\"'    -> '\"'
69  *   '\\\\\"'  -> '\\"'
70  * - an even number of '\'s followed by a '"' correspond to half that number
71  *   of '\', plus a regular quote serving as an argument delimiter (which
72  *   means it does not appear in the result)
73  *   'a\\"b c"'   -> 'a\b c'
74  *   'a\\\\"b c"' -> 'a\\b c'
75  * - '\' that are not followed by a '"' are copied literally
76  *   'a\b'     -> 'a\b'
77  *   'a\\b'    -> 'a\\b'
78  *
79  * Note:
80  * '\t' == 0x0009
81  * ' '  == 0x0020
82  * '"'  == 0x0022
83  * '\\' == 0x005c
84  */
85 LPWSTR* WINAPI CommandLineToArgvW(LPCWSTR lpCmdline, int* numargs)
86 {
87     DWORD argc;
88     LPWSTR  *argv;
89     LPCWSTR cs;
90     LPWSTR arg,s,d;
91     LPWSTR cmdline;
92     int in_quotes,bcount;
93
94     if (*lpCmdline==0)
95     {
96         /* Return the path to the executable */
97         DWORD len, size=16;
98
99         argv=LocalAlloc(LMEM_FIXED, size);
100         for (;;)
101         {
102             len = GetModuleFileNameW(0, (LPWSTR)(argv+1), (size-sizeof(LPWSTR))/sizeof(WCHAR));
103             if (!len)
104             {
105                 LocalFree(argv);
106                 return NULL;
107             }
108             if (len < size) break;
109             size*=2;
110             argv=LocalReAlloc(argv, size, 0);
111         }
112         argv[0]=(LPWSTR)(argv+1);
113         if (numargs)
114             *numargs=2;
115
116         return argv;
117     }
118
119     /* to get a writable copy */
120     argc=0;
121     bcount=0;
122     in_quotes=0;
123     cs=lpCmdline;
124     while (1)
125     {
126         if (*cs==0 || ((*cs==0x0009 || *cs==0x0020) && !in_quotes))
127         {
128             /* space */
129             argc++;
130             /* skip the remaining spaces */
131             while (*cs==0x0009 || *cs==0x0020) {
132                 cs++;
133             }
134             if (*cs==0)
135                 break;
136             bcount=0;
137             continue;
138         }
139         else if (*cs==0x005c)
140         {
141             /* '\', count them */
142             bcount++;
143         }
144         else if ((*cs==0x0022) && ((bcount & 1)==0))
145         {
146             /* unescaped '"' */
147             in_quotes=!in_quotes;
148             bcount=0;
149         }
150         else
151         {
152             /* a regular character */
153             bcount=0;
154         }
155         cs++;
156     }
157     /* Allocate in a single lump, the string array, and the strings that go with it.
158      * This way the caller can make a single GlobalFree call to free both, as per MSDN.
159      */
160     argv=LocalAlloc(LMEM_FIXED, argc*sizeof(LPWSTR)+(strlenW(lpCmdline)+1)*sizeof(WCHAR));
161     if (!argv)
162         return NULL;
163     cmdline=(LPWSTR)(argv+argc);
164     strcpyW(cmdline, lpCmdline);
165
166     argc=0;
167     bcount=0;
168     in_quotes=0;
169     arg=d=s=cmdline;
170     while (*s)
171     {
172         if ((*s==0x0009 || *s==0x0020) && !in_quotes)
173         {
174             /* Close the argument and copy it */
175             *d=0;
176             argv[argc++]=arg;
177
178             /* skip the remaining spaces */
179             do {
180                 s++;
181             } while (*s==0x0009 || *s==0x0020);
182
183             /* Start with a new argument */
184             arg=d=s;
185             bcount=0;
186         }
187         else if (*s==0x005c)
188         {
189             /* '\\' */
190             *d++=*s++;
191             bcount++;
192         }
193         else if (*s==0x0022)
194         {
195             /* '"' */
196             if ((bcount & 1)==0)
197             {
198                 /* Preceded by an even number of '\', this is half that
199                  * number of '\', plus a quote which we erase.
200                  */
201                 d-=bcount/2;
202                 in_quotes=!in_quotes;
203                 s++;
204             }
205             else
206             {
207                 /* Preceded by an odd number of '\', this is half that
208                  * number of '\' followed by a '"'
209                  */
210                 d=d-bcount/2-1;
211                 *d++='"';
212                 s++;
213             }
214             bcount=0;
215         }
216         else
217         {
218             /* a regular character */
219             *d++=*s++;
220             bcount=0;
221         }
222     }
223     if (*arg)
224     {
225         *d='\0';
226         argv[argc++]=arg;
227     }
228     if (numargs)
229         *numargs=argc;
230
231     return argv;
232 }
233
234 static DWORD shgfi_get_exe_type(LPCWSTR szFullPath)
235 {
236     BOOL status = FALSE;
237     HANDLE hfile;
238     DWORD BinaryType;
239     IMAGE_DOS_HEADER mz_header;
240     IMAGE_NT_HEADERS nt;
241     DWORD len;
242     char magic[4];
243
244     status = GetBinaryTypeW (szFullPath, &BinaryType);
245     if (!status)
246         return 0;
247     if (BinaryType == SCS_DOS_BINARY || BinaryType == SCS_PIF_BINARY)
248         return 0x4d5a;
249
250     hfile = CreateFileW( szFullPath, GENERIC_READ, FILE_SHARE_READ,
251                          NULL, OPEN_EXISTING, 0, 0 );
252     if ( hfile == INVALID_HANDLE_VALUE )
253         return 0;
254
255     /*
256      * The next section is adapted from MODULE_GetBinaryType, as we need
257      * to examine the image header to get OS and version information. We
258      * know from calling GetBinaryTypeA that the image is valid and either
259      * an NE or PE, so much error handling can be omitted.
260      * Seek to the start of the file and read the header information.
261      */
262
263     SetFilePointer( hfile, 0, NULL, SEEK_SET );
264     ReadFile( hfile, &mz_header, sizeof(mz_header), &len, NULL );
265
266     SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET );
267     ReadFile( hfile, magic, sizeof(magic), &len, NULL );
268     if ( *(DWORD*)magic == IMAGE_NT_SIGNATURE )
269     {
270         SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET );
271         ReadFile( hfile, &nt, sizeof(nt), &len, NULL );
272         CloseHandle( hfile );
273         /* DLL files are not executable and should return 0 */
274         if (nt.FileHeader.Characteristics & IMAGE_FILE_DLL)
275             return 0;
276         if (nt.OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_GUI)
277         {
278              return IMAGE_NT_SIGNATURE | 
279                    (nt.OptionalHeader.MajorSubsystemVersion << 24) |
280                    (nt.OptionalHeader.MinorSubsystemVersion << 16);
281         }
282         return IMAGE_NT_SIGNATURE;
283     }
284     else if ( *(WORD*)magic == IMAGE_OS2_SIGNATURE )
285     {
286         IMAGE_OS2_HEADER ne;
287         SetFilePointer( hfile, mz_header.e_lfanew, NULL, SEEK_SET );
288         ReadFile( hfile, &ne, sizeof(ne), &len, NULL );
289         CloseHandle( hfile );
290         if (ne.ne_exetyp == 2)
291             return IMAGE_OS2_SIGNATURE | (ne.ne_expver << 16);
292         return 0;
293     }
294     CloseHandle( hfile );
295     return 0;
296 }
297
298 /*************************************************************************
299  * SHELL_IsShortcut             [internal]
300  *
301  * Decide if an item id list points to a shell shortcut
302  */
303 BOOL SHELL_IsShortcut(LPCITEMIDLIST pidlLast)
304 {
305     char szTemp[MAX_PATH];
306     HKEY keyCls;
307     BOOL ret = FALSE;
308
309     if (_ILGetExtension(pidlLast, szTemp, MAX_PATH) &&
310           HCR_MapTypeToValueA(szTemp, szTemp, MAX_PATH, TRUE))
311     {
312         if (ERROR_SUCCESS == RegOpenKeyExA(HKEY_CLASSES_ROOT, szTemp, 0, KEY_QUERY_VALUE, &keyCls))
313         {
314           if (ERROR_SUCCESS == RegQueryValueExA(keyCls, "IsShortcut", NULL, NULL, NULL, NULL))
315             ret = TRUE;
316
317           RegCloseKey(keyCls);
318         }
319     }
320
321     return ret;
322 }
323
324 #define SHGFI_KNOWN_FLAGS \
325     (SHGFI_SMALLICON | SHGFI_OPENICON | SHGFI_SHELLICONSIZE | SHGFI_PIDL | \
326      SHGFI_USEFILEATTRIBUTES | SHGFI_ADDOVERLAYS | SHGFI_OVERLAYINDEX | \
327      SHGFI_ICON | SHGFI_DISPLAYNAME | SHGFI_TYPENAME | SHGFI_ATTRIBUTES | \
328      SHGFI_ICONLOCATION | SHGFI_EXETYPE | SHGFI_SYSICONINDEX | \
329      SHGFI_LINKOVERLAY | SHGFI_SELECTED | SHGFI_ATTR_SPECIFIED)
330
331 /*************************************************************************
332  * SHGetFileInfoW            [SHELL32.@]
333  *
334  */
335 DWORD_PTR WINAPI SHGetFileInfoW(LPCWSTR path,DWORD dwFileAttributes,
336                                 SHFILEINFOW *psfi, UINT sizeofpsfi, UINT flags )
337 {
338     WCHAR szLocation[MAX_PATH], szFullPath[MAX_PATH];
339     int iIndex;
340     DWORD_PTR ret = TRUE;
341     DWORD dwAttributes = 0;
342     IShellFolder * psfParent = NULL;
343     IExtractIconW * pei = NULL;
344     LPITEMIDLIST    pidlLast = NULL, pidl = NULL;
345     HRESULT hr = S_OK;
346     BOOL IconNotYetLoaded=TRUE;
347     UINT uGilFlags = 0;
348
349     TRACE("%s fattr=0x%x sfi=%p(attr=0x%08x) size=0x%x flags=0x%x\n",
350           (flags & SHGFI_PIDL)? "pidl" : debugstr_w(path), dwFileAttributes,
351           psfi, psfi->dwAttributes, sizeofpsfi, flags);
352
353     if ( (flags & SHGFI_USEFILEATTRIBUTES) && 
354          (flags & (SHGFI_ATTRIBUTES|SHGFI_EXETYPE|SHGFI_PIDL)))
355         return FALSE;
356
357     /* windows initializes these values regardless of the flags */
358     if (psfi != NULL)
359     {
360         psfi->szDisplayName[0] = '\0';
361         psfi->szTypeName[0] = '\0';
362         psfi->iIcon = 0;
363     }
364
365     if (!(flags & SHGFI_PIDL))
366     {
367         /* SHGetFileInfo should work with absolute and relative paths */
368         if (PathIsRelativeW(path))
369         {
370             GetCurrentDirectoryW(MAX_PATH, szLocation);
371             PathCombineW(szFullPath, szLocation, path);
372         }
373         else
374         {
375             lstrcpynW(szFullPath, path, MAX_PATH);
376         }
377     }
378
379     if (flags & SHGFI_EXETYPE)
380     {
381         if (flags != SHGFI_EXETYPE)
382             return 0;
383         return shgfi_get_exe_type(szFullPath);
384     }
385
386     /*
387      * psfi is NULL normally to query EXE type. If it is NULL, none of the
388      * below makes sense anyway. Windows allows this and just returns FALSE
389      */
390     if (psfi == NULL)
391         return FALSE;
392
393     /*
394      * translate the path into a pidl only when SHGFI_USEFILEATTRIBUTES
395      * is not specified.
396      * The pidl functions fail on not existing file names
397      */
398
399     if (flags & SHGFI_PIDL)
400     {
401         pidl = ILClone((LPCITEMIDLIST)path);
402     }
403     else if (!(flags & SHGFI_USEFILEATTRIBUTES))
404     {
405         hr = SHILCreateFromPathW(szFullPath, &pidl, &dwAttributes);
406     }
407
408     if ((flags & SHGFI_PIDL) || !(flags & SHGFI_USEFILEATTRIBUTES))
409     {
410         /* get the parent shellfolder */
411         if (pidl)
412         {
413             hr = SHBindToParent( pidl, &IID_IShellFolder, (LPVOID*)&psfParent,
414                                 (LPCITEMIDLIST*)&pidlLast );
415             if (SUCCEEDED(hr))
416                 pidlLast = ILClone(pidlLast);
417             ILFree(pidl);
418         }
419         else
420         {
421             ERR("pidl is null!\n");
422             return FALSE;
423         }
424     }
425
426     /* get the attributes of the child */
427     if (SUCCEEDED(hr) && (flags & SHGFI_ATTRIBUTES))
428     {
429         if (!(flags & SHGFI_ATTR_SPECIFIED))
430         {
431             psfi->dwAttributes = 0xffffffff;
432         }
433         IShellFolder_GetAttributesOf( psfParent, 1, (LPCITEMIDLIST*)&pidlLast,
434                                       &(psfi->dwAttributes) );
435     }
436
437     /* get the displayname */
438     if (SUCCEEDED(hr) && (flags & SHGFI_DISPLAYNAME))
439     {
440         if (flags & SHGFI_USEFILEATTRIBUTES)
441         {
442             lstrcpyW (psfi->szDisplayName, PathFindFileNameW(szFullPath));
443         }
444         else
445         {
446             STRRET str;
447             hr = IShellFolder_GetDisplayNameOf( psfParent, pidlLast,
448                                                 SHGDN_INFOLDER, &str);
449             StrRetToStrNW (psfi->szDisplayName, MAX_PATH, &str, pidlLast);
450         }
451     }
452
453     /* get the type name */
454     if (SUCCEEDED(hr) && (flags & SHGFI_TYPENAME))
455     {
456         static const WCHAR szFile[] = { 'F','i','l','e',0 };
457         static const WCHAR szDashFile[] = { '-','f','i','l','e',0 };
458
459         if (!(flags & SHGFI_USEFILEATTRIBUTES))
460         {
461             char ftype[80];
462
463             _ILGetFileType(pidlLast, ftype, 80);
464             MultiByteToWideChar(CP_ACP, 0, ftype, -1, psfi->szTypeName, 80 );
465         }
466         else
467         {
468             if (dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
469                 strcatW (psfi->szTypeName, szFile);
470             else 
471             {
472                 WCHAR sTemp[64];
473
474                 lstrcpyW(sTemp,PathFindExtensionW(szFullPath));
475                 if (!( HCR_MapTypeToValueW(sTemp, sTemp, 64, TRUE) &&
476                     HCR_MapTypeToValueW(sTemp, psfi->szTypeName, 80, FALSE )))
477                 {
478                     lstrcpynW (psfi->szTypeName, sTemp, 64);
479                     strcatW (psfi->szTypeName, szDashFile);
480                 }
481             }
482         }
483     }
484
485     /* ### icons ###*/
486     if (flags & SHGFI_OPENICON)
487         uGilFlags |= GIL_OPENICON;
488
489     if (flags & SHGFI_LINKOVERLAY)
490         uGilFlags |= GIL_FORSHORTCUT;
491     else if ((flags&SHGFI_ADDOVERLAYS) ||
492              (flags&(SHGFI_ICON|SHGFI_SMALLICON))==SHGFI_ICON)
493     {
494         if (SHELL_IsShortcut(pidlLast))
495             uGilFlags |= GIL_FORSHORTCUT;
496     }
497
498     if (flags & SHGFI_OVERLAYINDEX)
499         FIXME("SHGFI_OVERLAYINDEX unhandled\n");
500
501     if (flags & SHGFI_SELECTED)
502         FIXME("set icon to selected, stub\n");
503
504     if (flags & SHGFI_SHELLICONSIZE)
505         FIXME("set icon to shell size, stub\n");
506
507     /* get the iconlocation */
508     if (SUCCEEDED(hr) && (flags & SHGFI_ICONLOCATION ))
509     {
510         UINT uDummy,uFlags;
511
512         if (flags & SHGFI_USEFILEATTRIBUTES)
513         {
514             if (dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
515             {
516                 lstrcpyW(psfi->szDisplayName, swShell32Name);
517                 psfi->iIcon = -IDI_SHELL_FOLDER;
518             }
519             else
520             {
521                 WCHAR* szExt;
522                 static const WCHAR p1W[] = {'%','1',0};
523                 WCHAR sTemp [MAX_PATH];
524
525                 szExt = PathFindExtensionW(szFullPath);
526                 TRACE("szExt=%s\n", debugstr_w(szExt));
527                 if ( szExt &&
528                      HCR_MapTypeToValueW(szExt, sTemp, MAX_PATH, TRUE) &&
529                      HCR_GetDefaultIconW(sTemp, sTemp, MAX_PATH, &psfi->iIcon))
530                 {
531                     if (lstrcmpW(p1W, sTemp))
532                         strcpyW(psfi->szDisplayName, sTemp);
533                     else
534                     {
535                         /* the icon is in the file */
536                         strcpyW(psfi->szDisplayName, szFullPath);
537                     }
538                 }
539                 else
540                     ret = FALSE;
541             }
542         }
543         else
544         {
545             hr = IShellFolder_GetUIObjectOf(psfParent, 0, 1,
546                 (LPCITEMIDLIST*)&pidlLast, &IID_IExtractIconW,
547                 &uDummy, (LPVOID*)&pei);
548             if (SUCCEEDED(hr))
549             {
550                 hr = IExtractIconW_GetIconLocation(pei, uGilFlags,
551                     szLocation, MAX_PATH, &iIndex, &uFlags);
552
553                 if (uFlags & GIL_NOTFILENAME)
554                     ret = FALSE;
555                 else
556                 {
557                     lstrcpyW (psfi->szDisplayName, szLocation);
558                     psfi->iIcon = iIndex;
559                 }
560                 IExtractIconW_Release(pei);
561             }
562         }
563     }
564
565     /* get icon index (or load icon)*/
566     if (SUCCEEDED(hr) && (flags & (SHGFI_ICON | SHGFI_SYSICONINDEX)))
567     {
568         if (flags & SHGFI_USEFILEATTRIBUTES)
569         {
570             WCHAR sTemp [MAX_PATH];
571             WCHAR * szExt;
572             int icon_idx=0;
573
574             lstrcpynW(sTemp, szFullPath, MAX_PATH);
575
576             if (dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
577                 psfi->iIcon = SIC_GetIconIndex(swShell32Name, -IDI_SHELL_FOLDER, 0);
578             else
579             {
580                 static const WCHAR p1W[] = {'%','1',0};
581
582                 psfi->iIcon = 0;
583                 szExt = PathFindExtensionW(sTemp);
584                 if ( szExt &&
585                      HCR_MapTypeToValueW(szExt, sTemp, MAX_PATH, TRUE) &&
586                      HCR_GetDefaultIconW(sTemp, sTemp, MAX_PATH, &icon_idx))
587                 {
588                     if (!lstrcmpW(p1W,sTemp))            /* icon is in the file */
589                         strcpyW(sTemp, szFullPath);
590
591                     if (flags & SHGFI_SYSICONINDEX) 
592                     {
593                         psfi->iIcon = SIC_GetIconIndex(sTemp,icon_idx,0);
594                         if (psfi->iIcon == -1)
595                             psfi->iIcon = 0;
596                     }
597                     else 
598                     {
599                         UINT ret;
600                         if (flags & SHGFI_SMALLICON)
601                             ret = PrivateExtractIconsW( sTemp,icon_idx,
602                                 GetSystemMetrics( SM_CXSMICON ),
603                                 GetSystemMetrics( SM_CYSMICON ),
604                                 &psfi->hIcon, 0, 1, 0);
605                         else
606                             ret = PrivateExtractIconsW( sTemp, icon_idx,
607                                 GetSystemMetrics( SM_CXICON),
608                                 GetSystemMetrics( SM_CYICON),
609                                 &psfi->hIcon, 0, 1, 0);
610                         if (ret != 0 && ret != 0xFFFFFFFF)
611                         {
612                             IconNotYetLoaded=FALSE;
613                             psfi->iIcon = icon_idx;
614                         }
615                     }
616                 }
617             }
618         }
619         else
620         {
621             if (!(PidlToSicIndex(psfParent, pidlLast, !(flags & SHGFI_SMALLICON),
622                 uGilFlags, &(psfi->iIcon))))
623             {
624                 ret = FALSE;
625             }
626         }
627         if (ret)
628         {
629             if (flags & SHGFI_SMALLICON)
630                 ret = (DWORD_PTR) ShellSmallIconList;
631             else
632                 ret = (DWORD_PTR) ShellBigIconList;
633         }
634     }
635
636     /* icon handle */
637     if (SUCCEEDED(hr) && (flags & SHGFI_ICON) && IconNotYetLoaded)
638     {
639         if (flags & SHGFI_SMALLICON)
640             psfi->hIcon = ImageList_GetIcon( ShellSmallIconList, psfi->iIcon, ILD_NORMAL);
641         else
642             psfi->hIcon = ImageList_GetIcon( ShellBigIconList, psfi->iIcon, ILD_NORMAL);
643     }
644
645     if (flags & ~SHGFI_KNOWN_FLAGS)
646         FIXME("unknown flags %08x\n", flags & ~SHGFI_KNOWN_FLAGS);
647
648     if (psfParent)
649         IShellFolder_Release(psfParent);
650
651     if (hr != S_OK)
652         ret = FALSE;
653
654     SHFree(pidlLast);
655
656 #ifdef MORE_DEBUG
657     TRACE ("icon=%p index=0x%08x attr=0x%08x name=%s type=%s ret=0x%08lx\n",
658            psfi->hIcon, psfi->iIcon, psfi->dwAttributes,
659            debugstr_w(psfi->szDisplayName), debugstr_w(psfi->szTypeName), ret);
660 #endif
661
662     return ret;
663 }
664
665 /*************************************************************************
666  * SHGetFileInfoA            [SHELL32.@]
667  */
668 DWORD_PTR WINAPI SHGetFileInfoA(LPCSTR path,DWORD dwFileAttributes,
669                                 SHFILEINFOA *psfi, UINT sizeofpsfi,
670                                 UINT flags )
671 {
672     INT len;
673     LPWSTR temppath = NULL;
674     LPCWSTR pathW;
675     DWORD ret;
676     SHFILEINFOW temppsfi;
677
678     if (flags & SHGFI_PIDL)
679     {
680         /* path contains a pidl */
681         pathW = (LPCWSTR)path;
682     }
683     else
684     {
685         len = MultiByteToWideChar(CP_ACP, 0, path, -1, NULL, 0);
686         temppath = HeapAlloc(GetProcessHeap(), 0, len*sizeof(WCHAR));
687         MultiByteToWideChar(CP_ACP, 0, path, -1, temppath, len);
688         pathW = temppath;
689     }
690
691     if (psfi && (flags & SHGFI_ATTR_SPECIFIED))
692         temppsfi.dwAttributes=psfi->dwAttributes;
693
694     if (psfi == NULL)
695         ret = SHGetFileInfoW(pathW, dwFileAttributes, NULL, sizeof(temppsfi), flags);
696     else
697         ret = SHGetFileInfoW(pathW, dwFileAttributes, &temppsfi, sizeof(temppsfi), flags);
698
699     if (psfi)
700     {
701         if(flags & SHGFI_ICON)
702             psfi->hIcon=temppsfi.hIcon;
703         if(flags & (SHGFI_SYSICONINDEX|SHGFI_ICON|SHGFI_ICONLOCATION))
704             psfi->iIcon=temppsfi.iIcon;
705         if(flags & SHGFI_ATTRIBUTES)
706             psfi->dwAttributes=temppsfi.dwAttributes;
707         if(flags & (SHGFI_DISPLAYNAME|SHGFI_ICONLOCATION))
708         {
709             WideCharToMultiByte(CP_ACP, 0, temppsfi.szDisplayName, -1,
710                   psfi->szDisplayName, sizeof(psfi->szDisplayName), NULL, NULL);
711         }
712         if(flags & SHGFI_TYPENAME)
713         {
714             WideCharToMultiByte(CP_ACP, 0, temppsfi.szTypeName, -1,
715                   psfi->szTypeName, sizeof(psfi->szTypeName), NULL, NULL);
716         }
717     }
718
719     HeapFree(GetProcessHeap(), 0, temppath);
720
721     return ret;
722 }
723
724 /*************************************************************************
725  * DuplicateIcon            [SHELL32.@]
726  */
727 HICON WINAPI DuplicateIcon( HINSTANCE hInstance, HICON hIcon)
728 {
729     ICONINFO IconInfo;
730     HICON hDupIcon = 0;
731
732     TRACE("%p %p\n", hInstance, hIcon);
733
734     if (GetIconInfo(hIcon, &IconInfo))
735     {
736         hDupIcon = CreateIconIndirect(&IconInfo);
737
738         /* clean up hbmMask and hbmColor */
739         DeleteObject(IconInfo.hbmMask);
740         DeleteObject(IconInfo.hbmColor);
741     }
742
743     return hDupIcon;
744 }
745
746 /*************************************************************************
747  * ExtractIconA                [SHELL32.@]
748  */
749 HICON WINAPI ExtractIconA(HINSTANCE hInstance, LPCSTR lpszFile, UINT nIconIndex)
750 {   
751     HICON ret;
752     INT len = MultiByteToWideChar(CP_ACP, 0, lpszFile, -1, NULL, 0);
753     LPWSTR lpwstrFile = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
754
755     TRACE("%p %s %d\n", hInstance, lpszFile, nIconIndex);
756
757     MultiByteToWideChar(CP_ACP, 0, lpszFile, -1, lpwstrFile, len);
758     ret = ExtractIconW(hInstance, lpwstrFile, nIconIndex);
759     HeapFree(GetProcessHeap(), 0, lpwstrFile);
760
761     return ret;
762 }
763
764 /*************************************************************************
765  * ExtractIconW                [SHELL32.@]
766  */
767 HICON WINAPI ExtractIconW(HINSTANCE hInstance, LPCWSTR lpszFile, UINT nIconIndex)
768 {
769     HICON  hIcon = NULL;
770     UINT ret;
771     UINT cx = GetSystemMetrics(SM_CXICON), cy = GetSystemMetrics(SM_CYICON);
772
773     TRACE("%p %s %d\n", hInstance, debugstr_w(lpszFile), nIconIndex);
774
775     if (nIconIndex == 0xFFFFFFFF)
776     {
777         ret = PrivateExtractIconsW(lpszFile, 0, cx, cy, NULL, NULL, 0, LR_DEFAULTCOLOR);
778         if (ret != 0xFFFFFFFF && ret)
779             return (HICON)(UINT_PTR)ret;
780         return NULL;
781     }
782     else
783         ret = PrivateExtractIconsW(lpszFile, nIconIndex, cx, cy, &hIcon, NULL, 1, LR_DEFAULTCOLOR);
784
785     if (ret == 0xFFFFFFFF)
786         return (HICON)1;
787     else if (ret > 0 && hIcon)
788         return hIcon;
789
790     return NULL;
791 }
792
793 /*************************************************************************
794  * Printer_LoadIconsW        [SHELL32.205]
795  */
796 VOID WINAPI Printer_LoadIconsW(LPCWSTR wsPrinterName, HICON * pLargeIcon, HICON * pSmallIcon)
797 {
798     INT iconindex=IDI_SHELL_PRINTER;
799
800     TRACE("(%s, %p, %p)\n", debugstr_w(wsPrinterName), pLargeIcon, pSmallIcon);
801
802     /* We should check if wsPrinterName is
803        1. the Default Printer or not
804        2. connected or not
805        3. a Local Printer or a Network-Printer
806        and use different Icons
807     */
808     if((wsPrinterName != NULL) && (wsPrinterName[0] != 0))
809     {
810         FIXME("(select Icon by PrinterName %s not implemented)\n", debugstr_w(wsPrinterName));
811     }
812
813     if(pLargeIcon != NULL)
814         *pLargeIcon = LoadImageW(shell32_hInstance,
815                                  (LPCWSTR) MAKEINTRESOURCE(iconindex), IMAGE_ICON,
816                                  0, 0, LR_DEFAULTCOLOR|LR_DEFAULTSIZE);
817
818     if(pSmallIcon != NULL)
819         *pSmallIcon = LoadImageW(shell32_hInstance,
820                                  (LPCWSTR) MAKEINTRESOURCE(iconindex), IMAGE_ICON,
821                                  16, 16, LR_DEFAULTCOLOR);
822 }
823
824 /*************************************************************************
825  * Printers_RegisterWindowW        [SHELL32.213]
826  * used by "printui.dll":
827  * find the Window of the given Type for the specific Printer and 
828  * return the already existent hwnd or open a new window
829  */
830 BOOL WINAPI Printers_RegisterWindowW(LPCWSTR wsPrinter, DWORD dwType,
831             HANDLE * phClassPidl, HWND * phwnd)
832 {
833     FIXME("(%s, %x, %p (%p), %p (%p)) stub!\n", debugstr_w(wsPrinter), dwType,
834                 phClassPidl, (phClassPidl != NULL) ? *(phClassPidl) : NULL,
835                 phwnd, (phwnd != NULL) ? *(phwnd) : NULL);
836
837     return FALSE;
838
839
840 /*************************************************************************
841  * Printers_UnregisterWindow      [SHELL32.214]
842  */
843 VOID WINAPI Printers_UnregisterWindow(HANDLE hClassPidl, HWND hwnd)
844 {
845     FIXME("(%p, %p) stub!\n", hClassPidl, hwnd);
846
847
848 /*************************************************************************/
849
850 typedef struct
851 {
852     LPCWSTR  szApp;
853     LPCWSTR  szOtherStuff;
854     HICON hIcon;
855     HFONT hFont;
856 } ABOUT_INFO;
857
858 #define DROP_FIELD_TOP    (-12)
859
860 static void paint_dropline( HDC hdc, HWND hWnd )
861 {
862     HWND hWndCtl = GetDlgItem(hWnd, IDC_ABOUT_WINE_TEXT);
863     RECT rect;
864
865     if (!hWndCtl) return;
866     GetWindowRect( hWndCtl, &rect );
867     MapWindowPoints( 0, hWnd, (LPPOINT)&rect, 2 );
868     rect.top += DROP_FIELD_TOP;
869     rect.bottom = rect.top + 2;
870     DrawEdge( hdc, &rect, BDR_SUNKENOUTER, BF_RECT );
871 }
872
873 /*************************************************************************
874  * SHHelpShortcuts_RunDLLA        [SHELL32.@]
875  *
876  */
877 DWORD WINAPI SHHelpShortcuts_RunDLLA(DWORD dwArg1, DWORD dwArg2, DWORD dwArg3, DWORD dwArg4)
878 {
879     FIXME("(%x, %x, %x, %x) stub!\n", dwArg1, dwArg2, dwArg3, dwArg4);
880     return 0;
881 }
882
883 /*************************************************************************
884  * SHHelpShortcuts_RunDLLA        [SHELL32.@]
885  *
886  */
887 DWORD WINAPI SHHelpShortcuts_RunDLLW(DWORD dwArg1, DWORD dwArg2, DWORD dwArg3, DWORD dwArg4)
888 {
889     FIXME("(%x, %x, %x, %x) stub!\n", dwArg1, dwArg2, dwArg3, dwArg4);
890     return 0;
891 }
892
893 /*************************************************************************
894  * SHLoadInProc                [SHELL32.@]
895  * Create an instance of specified object class from within
896  * the shell process and release it immediately
897  */
898 HRESULT WINAPI SHLoadInProc (REFCLSID rclsid)
899 {
900     void *ptr = NULL;
901
902     TRACE("%s\n", debugstr_guid(rclsid));
903
904     CoCreateInstance(rclsid, NULL, CLSCTX_INPROC_SERVER, &IID_IUnknown,&ptr);
905     if(ptr)
906     {
907         IUnknown * pUnk = ptr;
908         IUnknown_Release(pUnk);
909         return NOERROR;
910     }
911     return DISP_E_MEMBERNOTFOUND;
912 }
913
914 /*************************************************************************
915  * AboutDlgProc            (internal)
916  */
917 INT_PTR CALLBACK AboutDlgProc( HWND hWnd, UINT msg, WPARAM wParam,
918                               LPARAM lParam )
919 {
920     HWND hWndCtl;
921
922     TRACE("\n");
923
924     switch(msg)
925     {
926     case WM_INITDIALOG:
927         {
928             ABOUT_INFO *info = (ABOUT_INFO *)lParam;
929             WCHAR template[512], buffer[512], version[64];
930             extern const char *wine_get_build_id(void);
931
932             if (info)
933             {
934                 const char* const *pstr = SHELL_Authors;
935                 SendDlgItemMessageW(hWnd, stc1, STM_SETICON,(WPARAM)info->hIcon, 0);
936                 GetWindowTextW( hWnd, template, sizeof(template)/sizeof(WCHAR) );
937                 sprintfW( buffer, template, info->szApp );
938                 SetWindowTextW( hWnd, buffer );
939                 SetWindowTextW( GetDlgItem(hWnd, IDC_ABOUT_STATIC_TEXT1), info->szApp );
940                 SetWindowTextW( GetDlgItem(hWnd, IDC_ABOUT_STATIC_TEXT2), info->szOtherStuff );
941                 GetWindowTextW( GetDlgItem(hWnd, IDC_ABOUT_STATIC_TEXT3),
942                                 template, sizeof(template)/sizeof(WCHAR) );
943                 MultiByteToWideChar( CP_UTF8, 0, wine_get_build_id(), -1,
944                                      version, sizeof(version)/sizeof(WCHAR) );
945                 sprintfW( buffer, template, version );
946                 SetWindowTextW( GetDlgItem(hWnd, IDC_ABOUT_STATIC_TEXT3), buffer );
947                 hWndCtl = GetDlgItem(hWnd, IDC_ABOUT_LISTBOX);
948                 SendMessageW( hWndCtl, WM_SETREDRAW, 0, 0 );
949                 SendMessageW( hWndCtl, WM_SETFONT, (WPARAM)info->hFont, 0 );
950                 while (*pstr)
951                 {
952                     /* authors list is in utf-8 format */
953                     MultiByteToWideChar( CP_UTF8, 0, *pstr, -1, buffer, sizeof(buffer)/sizeof(WCHAR) );
954                     SendMessageW( hWndCtl, LB_ADDSTRING, (WPARAM)-1, (LPARAM)buffer );
955                     pstr++;
956                 }
957                 SendMessageW( hWndCtl, WM_SETREDRAW, 1, 0 );
958             }
959         }
960         return 1;
961
962     case WM_PAINT:
963         {
964             PAINTSTRUCT ps;
965             HDC hDC = BeginPaint( hWnd, &ps );
966             paint_dropline( hDC, hWnd );
967             EndPaint( hWnd, &ps );
968         }
969     break;
970
971     case WM_COMMAND:
972         if (wParam == IDOK || wParam == IDCANCEL)
973         {
974             EndDialog(hWnd, TRUE);
975             return TRUE;
976         }
977         if (wParam == IDC_ABOUT_LICENSE)
978         {
979             MSGBOXPARAMSW params;
980
981             params.cbSize = sizeof(params);
982             params.hwndOwner = hWnd;
983             params.hInstance = shell32_hInstance;
984             params.lpszText = MAKEINTRESOURCEW(IDS_LICENSE);
985             params.lpszCaption = MAKEINTRESOURCEW(IDS_LICENSE_CAPTION);
986             params.dwStyle = MB_ICONINFORMATION | MB_OK;
987             params.lpszIcon = 0;
988             params.dwContextHelpId = 0;
989             params.lpfnMsgBoxCallback = NULL;
990             params.dwLanguageId = LANG_NEUTRAL;
991             MessageBoxIndirectW( &params );
992         }
993         break;
994     case WM_CLOSE:
995       EndDialog(hWnd, TRUE);
996       break;
997     }
998
999     return 0;
1000 }
1001
1002
1003 /*************************************************************************
1004  * ShellAboutA                [SHELL32.288]
1005  */
1006 BOOL WINAPI ShellAboutA( HWND hWnd, LPCSTR szApp, LPCSTR szOtherStuff, HICON hIcon )
1007 {
1008     BOOL ret;
1009     LPWSTR appW = NULL, otherW = NULL;
1010     int len;
1011
1012     if (szApp)
1013     {
1014         len = MultiByteToWideChar(CP_ACP, 0, szApp, -1, NULL, 0);
1015         appW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
1016         MultiByteToWideChar(CP_ACP, 0, szApp, -1, appW, len);
1017     }
1018     if (szOtherStuff)
1019     {
1020         len = MultiByteToWideChar(CP_ACP, 0, szOtherStuff, -1, NULL, 0);
1021         otherW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
1022         MultiByteToWideChar(CP_ACP, 0, szOtherStuff, -1, otherW, len);
1023     }
1024
1025     ret = ShellAboutW(hWnd, appW, otherW, hIcon);
1026
1027     HeapFree(GetProcessHeap(), 0, otherW);
1028     HeapFree(GetProcessHeap(), 0, appW);
1029     return ret;
1030 }
1031
1032
1033 /*************************************************************************
1034  * ShellAboutW                [SHELL32.289]
1035  */
1036 BOOL WINAPI ShellAboutW( HWND hWnd, LPCWSTR szApp, LPCWSTR szOtherStuff,
1037                              HICON hIcon )
1038 {
1039     ABOUT_INFO info;
1040     LOGFONTW logFont;
1041     HRSRC hRes;
1042     LPVOID template;
1043     BOOL bRet;
1044     static const WCHAR wszSHELL_ABOUT_MSGBOX[] =
1045         {'S','H','E','L','L','_','A','B','O','U','T','_','M','S','G','B','O','X',0};
1046
1047     TRACE("\n");
1048
1049     if(!(hRes = FindResourceW(shell32_hInstance, wszSHELL_ABOUT_MSGBOX, (LPWSTR)RT_DIALOG)))
1050         return FALSE;
1051     if(!(template = LoadResource(shell32_hInstance, hRes)))
1052         return FALSE;
1053     if (!hIcon) hIcon = LoadImageW( 0, (LPWSTR)IDI_WINLOGO, IMAGE_ICON, 48, 48, LR_SHARED );
1054     info.szApp        = szApp;
1055     info.szOtherStuff = szOtherStuff;
1056     info.hIcon        = hIcon;
1057
1058     SystemParametersInfoW( SPI_GETICONTITLELOGFONT, 0, &logFont, 0 );
1059     info.hFont = CreateFontIndirectW( &logFont );
1060
1061     bRet = DialogBoxIndirectParamW((HINSTANCE)GetWindowLongPtrW( hWnd, GWLP_HINSTANCE ),
1062                                    template, hWnd, AboutDlgProc, (LPARAM)&info );
1063     DeleteObject(info.hFont);
1064     return bRet;
1065 }
1066
1067 /*************************************************************************
1068  * FreeIconList (SHELL32.@)
1069  */
1070 void WINAPI FreeIconList( DWORD dw )
1071 {
1072     FIXME("%x: stub\n",dw);
1073 }
1074
1075 /*************************************************************************
1076  * SHLoadNonloadedIconOverlayIdentifiers (SHELL32.@)
1077  */
1078 HRESULT WINAPI SHLoadNonloadedIconOverlayIdentifiers( VOID )
1079 {
1080     FIXME("stub\n");
1081     return S_OK;
1082 }
1083
1084 /***********************************************************************
1085  * DllGetVersion [SHELL32.@]
1086  *
1087  * Retrieves version information of the 'SHELL32.DLL'
1088  *
1089  * PARAMS
1090  *     pdvi [O] pointer to version information structure.
1091  *
1092  * RETURNS
1093  *     Success: S_OK
1094  *     Failure: E_INVALIDARG
1095  *
1096  * NOTES
1097  *     Returns version of a shell32.dll from IE4.01 SP1.
1098  */
1099
1100 HRESULT WINAPI DllGetVersion (DLLVERSIONINFO *pdvi)
1101 {
1102     /* FIXME: shouldn't these values come from the version resource? */
1103     if (pdvi->cbSize == sizeof(DLLVERSIONINFO) ||
1104         pdvi->cbSize == sizeof(DLLVERSIONINFO2))
1105     {
1106         pdvi->dwMajorVersion = WINE_FILEVERSION_MAJOR;
1107         pdvi->dwMinorVersion = WINE_FILEVERSION_MINOR;
1108         pdvi->dwBuildNumber = WINE_FILEVERSION_BUILD;
1109         pdvi->dwPlatformID = WINE_FILEVERSION_PLATFORMID;
1110         if (pdvi->cbSize == sizeof(DLLVERSIONINFO2))
1111         {
1112             DLLVERSIONINFO2 *pdvi2 = (DLLVERSIONINFO2 *)pdvi;
1113
1114             pdvi2->dwFlags = 0;
1115             pdvi2->ullVersion = MAKEDLLVERULL(WINE_FILEVERSION_MAJOR,
1116                                               WINE_FILEVERSION_MINOR,
1117                                               WINE_FILEVERSION_BUILD,
1118                                               WINE_FILEVERSION_PLATFORMID);
1119         }
1120         TRACE("%u.%u.%u.%u\n",
1121               pdvi->dwMajorVersion, pdvi->dwMinorVersion,
1122               pdvi->dwBuildNumber, pdvi->dwPlatformID);
1123         return S_OK;
1124     }
1125     else
1126     {
1127         WARN("wrong DLLVERSIONINFO size from app\n");
1128         return E_INVALIDARG;
1129     }
1130 }
1131
1132 /*************************************************************************
1133  * global variables of the shell32.dll
1134  * all are once per process
1135  *
1136  */
1137 HINSTANCE    shell32_hInstance = 0;
1138 HIMAGELIST   ShellSmallIconList = 0;
1139 HIMAGELIST   ShellBigIconList = 0;
1140
1141
1142 /*************************************************************************
1143  * SHELL32 DllMain
1144  *
1145  * NOTES
1146  *  calling oleinitialize here breaks sone apps.
1147  */
1148 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID fImpLoad)
1149 {
1150     TRACE("%p 0x%x %p\n", hinstDLL, fdwReason, fImpLoad);
1151
1152     switch (fdwReason)
1153     {
1154     case DLL_PROCESS_ATTACH:
1155         shell32_hInstance = hinstDLL;
1156         DisableThreadLibraryCalls(shell32_hInstance);
1157
1158         /* get full path to this DLL for IExtractIconW_fnGetIconLocation() */
1159         GetModuleFileNameW(hinstDLL, swShell32Name, MAX_PATH);
1160         swShell32Name[MAX_PATH - 1] = '\0';
1161
1162         InitCommonControlsEx(NULL);
1163
1164         SIC_Initialize();
1165         InitChangeNotifications();
1166         break;
1167
1168     case DLL_PROCESS_DETACH:
1169         shell32_hInstance = 0;
1170         SIC_Destroy();
1171         FreeChangeNotifications();
1172         break;
1173     }
1174     return TRUE;
1175 }
1176
1177 /*************************************************************************
1178  * DllInstall         [SHELL32.@]
1179  *
1180  * PARAMETERS
1181  *
1182  *    BOOL bInstall - TRUE for install, FALSE for uninstall
1183  *    LPCWSTR pszCmdLine - command line (unused by shell32?)
1184  */
1185
1186 HRESULT WINAPI DllInstall(BOOL bInstall, LPCWSTR cmdline)
1187 {
1188     FIXME("%s %s: stub\n", bInstall ? "TRUE":"FALSE", debugstr_w(cmdline));
1189     return S_OK;        /* indicate success */
1190 }
1191
1192 /***********************************************************************
1193  *              DllCanUnloadNow (SHELL32.@)
1194  */
1195 HRESULT WINAPI DllCanUnloadNow(void)
1196 {
1197     FIXME("stub\n");
1198     return S_FALSE;
1199 }