dlls/shell32/shlfolder.c

   1 /*
   2  *      Shell Folder stuff
   3  *
   4  *      Copyright 1997                  Marcus Meissner
   5  *      Copyright 1998, 1999, 2002      Juergen Schmied
   6  *
   7  *      IShellFolder2 and related interfaces
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  */
  23
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <stdarg.h>
  27 #include <stdio.h>
  28
  29 #define COBJMACROS
  30 #define NONAMELESSUNION
  31
  32 #include "winerror.h"
  33 #include "windef.h"
  34 #include "winbase.h"
  35 #include "winreg.h"
  36 #include "wingdi.h"
  37 #include "winuser.h"
  38
  39 #include "ole2.h"
  40 #include "shlguid.h"
  41
  42 #include "pidl.h"
  43 #include "undocshell.h"
  44 #include "shell32_main.h"
  45 #include "shlwapi.h"
  46 #include "wine/debug.h"
  47 #include "shfldr.h"
  48
  49 WINE_DEFAULT_DEBUG_CHANNEL (shell);
  50
  51 /* SHCreateLinks flags */
  52 #define SHCLF_PREFIXNAME        0x01
  53 #define SHCLF_CREATEONDESKTOP   0x02
  54
  55 /***************************************************************************
  56  *  SHELL32_GetCustomFolderAttribute (internal function)
  57  *
  58  * Gets a value from the folder's desktop.ini file, if one exists.
  59  *
  60  * PARAMETERS
  61  *  pidl          [I] Folder containing the desktop.ini file.
  62  *  pwszHeading   [I] Heading in .ini file.
  63  *  pwszAttribute [I] Attribute in .ini file.
  64  *  pwszValue     [O] Buffer to store value into.
  65  *  cchValue      [I] Size in characters including NULL of buffer pointed to
  66  *                    by pwszValue.
  67  *
  68  *  RETURNS
  69  *    TRUE if returned non-NULL value.
  70  *    FALSE otherwise.
  71  */
  72 static inline BOOL SHELL32_GetCustomFolderAttributeFromPath(
  73     LPWSTR pwszFolderPath, LPCWSTR pwszHeading, LPCWSTR pwszAttribute,
  74     LPWSTR pwszValue, DWORD cchValue)
  75 {
  76     PathAddBackslashW(pwszFolderPath);
  77     PathAppendW(pwszFolderPath, L"desktop.ini");
  78     return GetPrivateProfileStringW(pwszHeading, pwszAttribute, L"", pwszValue, cchValue, pwszFolderPath);
  79 }
  80
  81 BOOL SHELL32_GetCustomFolderAttribute(
  82     LPCITEMIDLIST pidl, LPCWSTR pwszHeading, LPCWSTR pwszAttribute,
  83     LPWSTR pwszValue, DWORD cchValue)
  84 {
  85     DWORD dwAttrib = FILE_ATTRIBUTE_SYSTEM;
  86     WCHAR wszFolderPath[MAX_PATH];
  87
  88     /* Hack around not having system attribute on non-Windows file systems */
  89     if (0)
  90         dwAttrib = _ILGetFileAttributes(pidl, NULL, 0);
  91
  92     if (dwAttrib & FILE_ATTRIBUTE_SYSTEM)
  93     {
  94         if (!SHGetPathFromIDListW(pidl, wszFolderPath))
  95             return FALSE;
  96
  97         return SHELL32_GetCustomFolderAttributeFromPath(wszFolderPath, pwszHeading,
  98                                                 pwszAttribute, pwszValue, cchValue);
  99     }
 100     return FALSE;
 101 }
 102
 103 /***************************************************************************
 104  *  GetNextElement (internal function)
 105  *
 106  * Gets a part of a string till the first backslash.
 107  *
 108  * PARAMETERS
 109  *  pszNext [IN] string to get the element from
 110  *  pszOut  [IN] pointer to buffer which receives string
 111  *  dwOut   [IN] length of pszOut
 112  *
 113  *  RETURNS
 114  *    LPSTR pointer to first, not yet parsed char
 115  */
 116
 117 LPCWSTR GetNextElementW (LPCWSTR pszNext, LPWSTR pszOut, DWORD dwOut)
 118 {
 119     LPCWSTR pszTail = pszNext;
 120     DWORD dwCopy;
 121
 122     TRACE ("(%s %p 0x%08x)\n", debugstr_w(pszNext), pszOut, dwOut);
 123
 124     *pszOut = 0;
 125
 126     if (!pszNext || !*pszNext)
 127         return NULL;
 128
 129     while (*pszTail && (*pszTail != (WCHAR) '\\'))
 130         pszTail++;
 131
 132     dwCopy = pszTail - pszNext + 1;
 133     lstrcpynW (pszOut, pszNext, (dwOut < dwCopy) ? dwOut : dwCopy);
 134
 135     if (*pszTail)
 136         pszTail++;
 137     else
 138         pszTail = NULL;
 139
 140     TRACE ("--(%s %s 0x%08x %p)\n", debugstr_w (pszNext), debugstr_w (pszOut), dwOut, pszTail);
 141     return pszTail;
 142 }
 143
 144 HRESULT SHELL32_ParseNextElement (IShellFolder2 * psf, HWND hwndOwner, LPBC pbc,
 145                                   LPITEMIDLIST * pidlInOut, LPOLESTR szNext, DWORD * pEaten, DWORD * pdwAttributes)
 146 {
 147     LPITEMIDLIST pidlOut = NULL, pidlTemp = NULL;
 148     IShellFolder *psfChild;
 149     HRESULT hr;
 150
 151     TRACE ("(%p, %p, %p, %s)\n", psf, pbc, pidlInOut ? *pidlInOut : NULL, debugstr_w (szNext));
 152
 153     /* get the shellfolder for the child pidl and let it analyse further */
 154     hr = IShellFolder2_BindToObject (psf, *pidlInOut, pbc, &IID_IShellFolder, (LPVOID *) & psfChild);
 155
 156     if (SUCCEEDED(hr)) {
 157         hr = IShellFolder_ParseDisplayName (psfChild, hwndOwner, pbc, szNext, pEaten, &pidlOut, pdwAttributes);
 158         IShellFolder_Release (psfChild);
 159
 160         if (SUCCEEDED(hr)) {
 161             pidlTemp = ILCombine (*pidlInOut, pidlOut);
 162
 163             if (!pidlTemp)
 164                 hr = E_OUTOFMEMORY;
 165         }
 166
 167         if (pidlOut)
 168             ILFree (pidlOut);
 169     }
 170
 171     ILFree (*pidlInOut);
 172     *pidlInOut = pidlTemp;
 173
 174     TRACE ("-- pidl=%p ret=0x%08x\n", pidlInOut ? *pidlInOut : NULL, hr);
 175     return hr;
 176 }
 177
 178 /***********************************************************************
 179  *      SHELL32_CoCreateInitSF
 180  *
 181  * Creates a shell folder and initializes it with a pidl and a root folder
 182  * via IPersistFolder3 or IPersistFolder.
 183  *
 184  * NOTES
 185  *   pathRoot can be NULL for Folders being a drive.
 186  *   In this case the absolute path is built from pidlChild (eg. C:)
 187  */
 188 static HRESULT SHELL32_CoCreateInitSF (LPCITEMIDLIST pidlRoot, LPCWSTR pathRoot,
 189                 LPCITEMIDLIST pidlChild, REFCLSID clsid, LPVOID * ppvOut)
 190 {
 191     HRESULT hr;
 192
 193     TRACE ("(%p %s %p %s %p)\n", pidlRoot, debugstr_w(pathRoot), pidlChild, debugstr_guid(clsid), ppvOut);
 194
 195     hr = SHCoCreateInstance(NULL, clsid, NULL, &IID_IShellFolder, ppvOut);
 196     if (SUCCEEDED (hr))
 197     {
 198         LPITEMIDLIST pidlAbsolute = ILCombine (pidlRoot, pidlChild);
 199         IPersistFolder *pPF;
 200         IPersistFolder3 *ppf;
 201
 202         if (_ILIsFolder(pidlChild) &&
 203             SUCCEEDED (IUnknown_QueryInterface ((IUnknown *) * ppvOut, &IID_IPersistFolder3, (LPVOID *) & ppf)))
 204         {
 205             PERSIST_FOLDER_TARGET_INFO ppfti;
 206
 207             ZeroMemory (&ppfti, sizeof (ppfti));
 208
 209             /* fill the PERSIST_FOLDER_TARGET_INFO */
 210             ppfti.dwAttributes = -1;
 211             ppfti.csidl = -1;
 212
 213             /* build path */
 214             if (pathRoot) {
 215                 lstrcpynW (ppfti.szTargetParsingName, pathRoot, MAX_PATH - 1);
 216                 PathAddBackslashW(ppfti.szTargetParsingName); /* FIXME: why have drives a backslash here ? */
 217             }
 218
 219             if (pidlChild) {
 220                 int len = lstrlenW(ppfti.szTargetParsingName);
 221
 222                 if (!_ILSimpleGetTextW(pidlChild, ppfti.szTargetParsingName + len, MAX_PATH - len))
 223                         hr = E_INVALIDARG;
 224             }
 225
 226             IPersistFolder3_InitializeEx (ppf, NULL, pidlAbsolute, &ppfti);
 227             IPersistFolder3_Release (ppf);
 228         }
 229         else if (SUCCEEDED ((hr = IUnknown_QueryInterface ((IUnknown *) * ppvOut, &IID_IPersistFolder, (LPVOID *) & pPF)))) {
 230             IPersistFolder_Initialize (pPF, pidlAbsolute);
 231             IPersistFolder_Release (pPF);
 232         }
 233         ILFree (pidlAbsolute);
 234     }
 235     TRACE ("-- (%p) ret=0x%08x\n", *ppvOut, hr);
 236     return hr;
 237 }
 238
 239 /***********************************************************************
 240  *      SHELL32_BindToChild [Internal]
 241  *
 242  * Common code for IShellFolder_BindToObject.
 243  *
 244  * PARAMS
 245  *  pidlRoot     [I] The parent shell folder's absolute pidl.
 246  *  pathRoot     [I] Absolute dos path of the parent shell folder.
 247  *  pidlComplete [I] PIDL of the child. Relative to pidlRoot.
 248  *  riid         [I] GUID of the interface, which ppvOut shall be bound to.
 249  *  ppvOut       [O] A reference to the child's interface (riid).
 250  *
 251  * NOTES
 252  *  pidlComplete has to contain at least one non empty SHITEMID.
 253  *  This function makes special assumptions on the shell namespace, which
 254  *  means you probably can't use it for your IShellFolder implementation.
 255  */
 256 HRESULT SHELL32_BindToChild (LPCITEMIDLIST pidlRoot, const CLSID *clsidChild,
 257                              LPCWSTR pathRoot, LPCITEMIDLIST pidlComplete, REFIID riid, LPVOID * ppvOut)
 258 {
 259     GUID const *clsid;
 260     IShellFolder *pSF;
 261     HRESULT hr;
 262     LPITEMIDLIST pidlChild;
 263
 264     TRACE("(%p %s %p %s %p)\n", pidlRoot, debugstr_w(pathRoot), pidlComplete, debugstr_guid(riid), ppvOut);
 265
 266     if (!pidlRoot || !ppvOut || _ILIsEmpty(pidlComplete))
 267         return E_INVALIDARG;
 268
 269     *ppvOut = NULL;
 270
 271     pidlChild = ILCloneFirst (pidlComplete);
 272
 273     if ((clsid = _ILGetGUIDPointer (pidlChild))) {
 274         /* virtual folder */
 275         hr = SHELL32_CoCreateInitSF (pidlRoot, pathRoot, pidlChild, clsid, (LPVOID *)&pSF);
 276     } else if (_ILIsValue(pidlChild)) {
 277         /* Don't bind to files */
 278         hr = HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND);
 279     } else {
 280         /* file system folder */
 281         CLSID clsidFolder = *clsidChild;
 282         WCHAR wszCLSIDValue[CHARS_IN_GUID], wszFolderPath[MAX_PATH], *pwszPathTail = wszFolderPath;
 283
 284         /* see if folder CLSID should be overridden by desktop.ini file */
 285         if (pathRoot) {
 286             lstrcpynW(wszFolderPath, pathRoot, MAX_PATH);
 287             pwszPathTail = PathAddBackslashW(wszFolderPath);
 288         }
 289
 290         _ILSimpleGetTextW(pidlChild,pwszPathTail,MAX_PATH - (int)(pwszPathTail - wszFolderPath));
 291
 292         if (SHELL32_GetCustomFolderAttributeFromPath (wszFolderPath,
 293             L".ShellClassInfo", L"CLSID", wszCLSIDValue, CHARS_IN_GUID))
 294             CLSIDFromString (wszCLSIDValue, &clsidFolder);
 295
 296         hr = SHELL32_CoCreateInitSF (pidlRoot, pathRoot, pidlChild,
 297                                      &clsidFolder, (LPVOID *)&pSF);
 298     }
 299     ILFree (pidlChild);
 300
 301     if (SUCCEEDED (hr)) {
 302         if (_ILIsPidlSimple (pidlComplete)) {
 303             /* no sub folders */
 304             hr = IShellFolder_QueryInterface (pSF, riid, ppvOut);
 305         } else {
 306             /* go deeper */
 307             hr = IShellFolder_BindToObject (pSF, ILGetNext (pidlComplete), NULL, riid, ppvOut);
 308         }
 309         IShellFolder_Release (pSF);
 310     }
 311
 312     TRACE ("-- returning (%p) 0x%08x\n", *ppvOut, hr);
 313
 314     return hr;
 315 }
 316
 317 /***********************************************************************
 318  *      SHELL32_GetDisplayNameOfChild
 319  *
 320  * Retrieves the display name of a child object of a shellfolder.
 321  *
 322  * For a pidl eg. [subpidl1][subpidl2][subpidl3]:
 323  * - it binds to the child shellfolder [subpidl1]
 324  * - asks it for the displayname of [subpidl2][subpidl3]
 325  *
 326  * Is possible the pidl is a simple pidl. In this case it asks the
 327  * subfolder for the displayname of an empty pidl. The subfolder
 328  * returns the own displayname eg. "::{guid}". This is used for
 329  * virtual folders with the registry key WantsFORPARSING set.
 330  */
 331 HRESULT SHELL32_GetDisplayNameOfChild (IShellFolder2 * psf,
 332                                        LPCITEMIDLIST pidl, DWORD dwFlags, LPWSTR szOut, DWORD dwOutLen)
 333 {
 334     LPITEMIDLIST pidlFirst;
 335     HRESULT hr;
 336
 337     TRACE ("(%p)->(pidl=%p 0x%08x %p 0x%08x)\n", psf, pidl, dwFlags, szOut, dwOutLen);
 338     pdump (pidl);
 339
 340     pidlFirst = ILCloneFirst (pidl);
 341     if (pidlFirst) {
 342         IShellFolder2 *psfChild;
 343
 344         hr = IShellFolder2_BindToObject (psf, pidlFirst, NULL, &IID_IShellFolder, (LPVOID *) & psfChild);
 345         if (SUCCEEDED (hr)) {
 346             STRRET strTemp;
 347             LPITEMIDLIST pidlNext = ILGetNext (pidl);
 348
 349             hr = IShellFolder2_GetDisplayNameOf (psfChild, pidlNext, dwFlags, &strTemp);
 350             if (SUCCEEDED (hr)) {
 351                 if(!StrRetToStrNW (szOut, dwOutLen, &strTemp, pidlNext))
 352                     hr = E_FAIL;
 353             }
 354             IShellFolder2_Release (psfChild);
 355         }
 356         ILFree (pidlFirst);
 357     } else
 358         hr = E_OUTOFMEMORY;
 359
 360     TRACE ("-- ret=0x%08x %s\n", hr, debugstr_w(szOut));
 361
 362     return hr;
 363 }
 364
 365 /***********************************************************************
 366  *  SHELL32_GetItemAttributes
 367  *
 368  * NOTES
 369  * Observed values:
 370  *  folder:     0xE0000177      FILESYSTEM | HASSUBFOLDER | FOLDER
 371  *  file:       0x40000177      FILESYSTEM
 372  *  drive:      0xf0000144      FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR
 373  *  mycomputer: 0xb0000154      HASSUBFOLDER | FOLDER | FILESYSANCESTOR
 374  *  (seems to be default for shell extensions if no registry entry exists)
 375  *
 376  * win2k:
 377  *  folder:    0xF0400177      FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR | CANMONIKER
 378  *  file:      0x40400177      FILESYSTEM | CANMONIKER
 379  *  drive      0xF0400154      FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR | CANMONIKER | CANRENAME (LABEL)
 380  *
 381  * According to the MSDN documentation this function should not set flags. It claims only to reset flags when necessary.
 382  * However it turns out the native shell32.dll _sets_ flags in several cases - so do we.
 383  */
 384 HRESULT SHELL32_GetItemAttributes (IShellFolder2 *psf, LPCITEMIDLIST pidl, LPDWORD pdwAttributes)
 385 {
 386     DWORD dwAttributes;
 387     BOOL has_guid;
 388     static const DWORD dwSupportedAttr=
 389                           SFGAO_CANCOPY |           /*0x00000001 */
 390                           SFGAO_CANMOVE |           /*0x00000002 */
 391                           SFGAO_CANLINK |           /*0x00000004 */
 392                           SFGAO_CANRENAME |         /*0x00000010 */
 393                           SFGAO_CANDELETE |         /*0x00000020 */
 394                           SFGAO_HASPROPSHEET |      /*0x00000040 */
 395                           SFGAO_DROPTARGET |        /*0x00000100 */
 396                           SFGAO_LINK |              /*0x00010000 */
 397                           SFGAO_READONLY |          /*0x00040000 */
 398                           SFGAO_HIDDEN |            /*0x00080000 */
 399                           SFGAO_FILESYSANCESTOR |   /*0x10000000 */
 400                           SFGAO_FOLDER |            /*0x20000000 */
 401                           SFGAO_FILESYSTEM |        /*0x40000000 */
 402                           SFGAO_HASSUBFOLDER;       /*0x80000000 */
 403
 404     TRACE ("0x%08x\n", *pdwAttributes);
 405
 406     if (*pdwAttributes & ~dwSupportedAttr)
 407     {
 408         WARN ("attributes 0x%08x not implemented\n", (*pdwAttributes & ~dwSupportedAttr));
 409         *pdwAttributes &= dwSupportedAttr;
 410     }
 411
 412     has_guid = _ILGetGUIDPointer(pidl) != NULL;
 413
 414     dwAttributes = *pdwAttributes;
 415
 416     if (_ILIsDrive (pidl)) {
 417         *pdwAttributes &= SFGAO_HASSUBFOLDER|SFGAO_FILESYSTEM|SFGAO_FOLDER|SFGAO_FILESYSANCESTOR|
 418             SFGAO_DROPTARGET|SFGAO_HASPROPSHEET|SFGAO_CANLINK;
 419     } else if (has_guid && HCR_GetFolderAttributes(pidl, &dwAttributes)) {
 420         *pdwAttributes = dwAttributes;
 421     } else if (_ILGetDataPointer (pidl)) {
 422         DWORD file_attr = _ILGetFileAttributes (pidl, NULL, 0);
 423
 424         if (!file_attr) {
 425             WCHAR path[MAX_PATH];
 426             STRRET strret;
 427
 428             /* File attributes are not present in the internal PIDL structure, so get them from the file system. */
 429
 430             HRESULT hr = IShellFolder2_GetDisplayNameOf(psf, pidl, SHGDN_FORPARSING, &strret);
 431             if (SUCCEEDED(hr)) {
 432                 hr = StrRetToBufW(&strret, pidl, path, MAX_PATH);
 433
 434                 /* call GetFileAttributes() only for file system paths, not for parsing names like "::{...}" */
 435                 if (SUCCEEDED(hr) && path[0]!=':')
 436                     file_attr = GetFileAttributesW(path);
 437             }
 438         }
 439
 440         /* Set common attributes */
 441         *pdwAttributes |= SFGAO_FILESYSTEM | SFGAO_DROPTARGET | SFGAO_HASPROPSHEET | SFGAO_CANDELETE |
 442                           SFGAO_CANRENAME | SFGAO_CANLINK | SFGAO_CANMOVE | SFGAO_CANCOPY;
 443
 444         if (file_attr & FILE_ATTRIBUTE_DIRECTORY)
 445             *pdwAttributes |=  (SFGAO_FOLDER | SFGAO_HASSUBFOLDER | SFGAO_FILESYSANCESTOR | SFGAO_STORAGEANCESTOR | SFGAO_STORAGE);
 446         else
 447         {
 448             *pdwAttributes &= ~(SFGAO_FOLDER | SFGAO_HASSUBFOLDER | SFGAO_FILESYSANCESTOR | SFGAO_STORAGEANCESTOR | SFGAO_STORAGE);
 449             *pdwAttributes |= SFGAO_STREAM;
 450         }
 451
 452         if (file_attr & FILE_ATTRIBUTE_HIDDEN)
 453             *pdwAttributes |=  SFGAO_HIDDEN;
 454         else
 455             *pdwAttributes &= ~SFGAO_HIDDEN;
 456
 457         if (file_attr & FILE_ATTRIBUTE_READONLY)
 458             *pdwAttributes |=  SFGAO_READONLY;
 459         else
 460             *pdwAttributes &= ~SFGAO_READONLY;
 461
 462         if (SFGAO_LINK & *pdwAttributes) {
 463             char ext[MAX_PATH];
 464
 465             if (!_ILGetExtension(pidl, ext, MAX_PATH) || lstrcmpiA(ext, "lnk"))
 466                 *pdwAttributes &= ~SFGAO_LINK;
 467         }
 468     } else {
 469         *pdwAttributes &= SFGAO_HASSUBFOLDER|SFGAO_FOLDER|SFGAO_FILESYSANCESTOR|SFGAO_DROPTARGET|SFGAO_HASPROPSHEET|SFGAO_CANRENAME|SFGAO_CANLINK;
 470     }
 471     TRACE ("-- 0x%08x\n", *pdwAttributes);
 472     return S_OK;
 473 }
 474
 475 /***********************************************************************
 476  *  SHELL32_CompareIDs
 477  */
 478 HRESULT SHELL32_CompareIDs(IShellFolder2 *sf, LPARAM lParam, LPCITEMIDLIST pidl1,
 479         LPCITEMIDLIST pidl2)
 480 {
 481     int type1, type2;
 482     char szTemp1[MAX_PATH];
 483     char szTemp2[MAX_PATH];
 484     HRESULT nReturn;
 485     LPITEMIDLIST firstpidl, nextpidl1, nextpidl2;
 486     IShellFolder *psf;
 487
 488     /* test for empty pidls */
 489     BOOL isEmpty1 = _ILIsDesktop (pidl1);
 490     BOOL isEmpty2 = _ILIsDesktop (pidl2);
 491
 492     if (isEmpty1 && isEmpty2)
 493         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 0 );
 494     if (isEmpty1)
 495         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
 496     if (isEmpty2)
 497         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
 498
 499     /* test for different types. Sort order is the PT_* constant */
 500     type1 = _ILGetDataPointer (pidl1)->type;
 501     type2 = _ILGetDataPointer (pidl2)->type;
 502     if (type1 < type2)
 503         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
 504     else if (type1 > type2)
 505         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
 506
 507     /* test for name of pidl */
 508     _ILSimpleGetText (pidl1, szTemp1, MAX_PATH);
 509     _ILSimpleGetText (pidl2, szTemp2, MAX_PATH);
 510     nReturn = lstrcmpiA (szTemp1, szTemp2);
 511     if (nReturn < 0)
 512         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
 513     else if (nReturn > 0)
 514         return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
 515
 516     /* test of complex pidls */
 517     firstpidl = ILCloneFirst (pidl1);
 518     nextpidl1 = ILGetNext (pidl1);
 519     nextpidl2 = ILGetNext (pidl2);
 520
 521     /* optimizing: test special cases and bind not deeper */
 522     /* the deeper shellfolder would do the same */
 523     isEmpty1 = _ILIsDesktop (nextpidl1);
 524     isEmpty2 = _ILIsDesktop (nextpidl2);
 525
 526     if (isEmpty1 && isEmpty2) {
 527         nReturn = MAKE_HRESULT( SEVERITY_SUCCESS, 0, 0 );
 528     } else if (isEmpty1) {
 529         nReturn = MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
 530     } else if (isEmpty2) {
 531         nReturn = MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
 532     /* optimizing end */
 533     } else if (SUCCEEDED(IShellFolder2_BindToObject(sf, firstpidl, NULL, &IID_IShellFolder, (void **)&psf))) {
 534         nReturn = IShellFolder_CompareIDs (psf, lParam, nextpidl1, nextpidl2);
 535         IShellFolder_Release (psf);
 536     }
 537     ILFree (firstpidl);
 538     return nReturn;
 539 }
 540
 541 HRESULT SHELL32_GetColumnDetails(const shvheader *data, int column, SHELLDETAILS *details)
 542 {
 543     details->fmt = data[column].fmt;
 544     details->cxChar = data[column].cxChar;
 545
 546     if (SHELL_OsIsUnicode())
 547     {
 548         details->str.u.pOleStr = CoTaskMemAlloc(MAX_PATH * sizeof(WCHAR));
 549         if (!details->str.u.pOleStr) return E_OUTOFMEMORY;
 550
 551         details->str.uType = STRRET_WSTR;
 552         LoadStringW(shell32_hInstance, data[column].colnameid, details->str.u.pOleStr, MAX_PATH);
 553     }
 554     else
 555     {
 556         details->str.uType = STRRET_CSTR;
 557         LoadStringA(shell32_hInstance, data[column].colnameid, details->str.u.cStr, MAX_PATH);
 558     }
 559
 560     return S_OK;
 561 }
 562
 563 HRESULT shellfolder_map_column_to_scid(const shvheader *header, UINT column, SHCOLUMNID *scid)
 564 {
 565     if (header[column].fmtid == NULL)
 566     {
 567         FIXME("missing property id for column %u.\n", column);
 568         memset(scid, 0, sizeof(*scid));
 569         return E_NOTIMPL;
 570     }
 571
 572     scid->fmtid = *header[column].fmtid;
 573     scid->pid = header[column].pid;
 574
 575     return S_OK;
 576 }
 577
 578 HRESULT shellfolder_get_file_details(IShellFolder2 *iface, LPCITEMIDLIST pidl, const shvheader *header,
 579                                      int column, SHELLDETAILS *psd)
 580 {
 581     psd->str.uType = STRRET_CSTR;
 582     switch (header[column].pid)
 583     {
 584     case PID_STG_NAME:
 585         return IShellFolder2_GetDisplayNameOf( iface, pidl, SHGDN_NORMAL | SHGDN_INFOLDER, &psd->str );
 586     case PID_STG_SIZE:
 587         _ILGetFileSize( pidl, psd->str.u.cStr, MAX_PATH );
 588         break;
 589     case PID_STG_STORAGETYPE:
 590         _ILGetFileType( pidl, psd->str.u.cStr, MAX_PATH );
 591         break;
 592     case PID_STG_WRITETIME:
 593         _ILGetFileDate( pidl, psd->str.u.cStr, MAX_PATH );
 594         break;
 595     case PID_STG_ATTRIBUTES:
 596         _ILGetFileAttributes( pidl, psd->str.u.cStr, MAX_PATH );
 597         break;
 598     }
 599     return S_OK;
 600 }
 601
 602 /***********************************************************************
 603  *  SHCreateLinks
 604  *
 605  *   Undocumented.
 606  */
 607 HRESULT WINAPI SHCreateLinks( HWND hWnd, LPCSTR lpszDir, LPDATAOBJECT lpDataObject,
 608                               UINT uFlags, LPITEMIDLIST *lppidlLinks)
 609 {
 610     FIXME("%p %s %p %08x %p\n",hWnd,lpszDir,lpDataObject,uFlags,lppidlLinks);
 611     return E_NOTIMPL;
 612 }
 613
 614 /***********************************************************************
 615  *  SHOpenFolderAndSelectItems
 616  *
 617  *   Added in XP.
 618  */
 619 HRESULT WINAPI SHOpenFolderAndSelectItems( PCIDLIST_ABSOLUTE pidlFolder, UINT cidl,
 620                               PCUITEMID_CHILD_ARRAY *apidl, DWORD flags )
 621 {
 622     FIXME("%p %u %p 0x%x: stub\n", pidlFolder, cidl, apidl, flags);
 623     return E_NOTIMPL;
 624 }
 625
 626 /***********************************************************************
 627  *  SHGetSetFolderCustomSettings (SHELL32.709)
 628  *
 629  *   Only Unicode above Server 2003, writes/reads from a Desktop.ini
 630  */
 631 HRESULT WINAPI SHGetSetFolderCustomSettings( LPSHFOLDERCUSTOMSETTINGS fcs, PCWSTR path, DWORD flag )
 632 {
 633     WCHAR bufferW[MAX_PATH];
 634     HRESULT hr;
 635
 636     hr = E_FAIL;
 637     bufferW[0] = 0;
 638
 639     if (!fcs || !path)
 640         return hr;
 641
 642     if (flag & FCS_FORCEWRITE)
 643     {
 644         if (fcs->dwMask & FCSM_ICONFILE)
 645         {
 646             lstrcpyW(bufferW, path);
 647             PathAddBackslashW(bufferW);
 648             lstrcatW(bufferW, L"desktop.ini");
 649
 650             if (WritePrivateProfileStringW(L".ShellClassInfo", L"IconResource", fcs->pszIconFile, bufferW))
 651             {
 652                 TRACE("Wrote an iconresource entry %s into %s\n", debugstr_w(fcs->pszIconFile), debugstr_w(bufferW));
 653                 hr = S_OK;
 654             }
 655             else
 656                 ERR("Failed to write (to) Desktop.ini file\n");
 657         }
 658     }
 659     else
 660         FIXME("%p %s 0x%x: stub\n", fcs, debugstr_w(path), flag);
 661
 662     return hr;
 663 }
 664
 665 /***********************************************************************
 666  * SHLimitInputEdit (SHELL32.747)
 667  */
 668 HRESULT WINAPI SHLimitInputEdit( HWND textbox, IShellFolder *folder )
 669 {
 670     FIXME("%p %p: stub\n", textbox, folder);
 671     return E_NOTIMPL;
 672 }