dlls/shell32/shfldr_desktop.c

   1
   2 /*
   3  *    Virtual Desktop Folder
   4  *
   5  *    Copyright 1997            Marcus Meissner
   6  *    Copyright 1998, 1999, 2002    Juergen Schmied
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <stdarg.h>
  26 #include <stdio.h>
  27
  28 #define COBJMACROS
  29 #define NONAMELESSUNION
  30
  31 #include "winerror.h"
  32 #include "windef.h"
  33 #include "winbase.h"
  34 #include "winreg.h"
  35 #include "wingdi.h"
  36 #include "winuser.h"
  37
  38 #include "ole2.h"
  39 #include "shlguid.h"
  40
  41 #include "wininet.h"
  42 #include "pidl.h"
  43 #include "shell32_main.h"
  44 #include "shresdef.h"
  45 #include "shlwapi.h"
  46 #include "shellfolder.h"
  47 #include "wine/debug.h"
  48 #include "debughlp.h"
  49 #include "shfldr.h"
  50
  51 WINE_DEFAULT_DEBUG_CHANNEL (shell);
  52
  53 /* Undocumented functions from shdocvw */
  54 extern HRESULT WINAPI IEParseDisplayNameWithBCW(DWORD codepage, LPCWSTR lpszDisplayName, LPBC pbc, LPITEMIDLIST *ppidl);
  55
  56 /***********************************************************************
  57 *     Desktopfolder implementation
  58 */
  59
  60 typedef struct {
  61     IShellFolder2 IShellFolder2_iface;
  62     IPersistFolder2 IPersistFolder2_iface;
  63     LONG ref;
  64
  65     /* both paths are parsible from the desktop */
  66     LPWSTR sPathTarget;     /* complete path to target used for enumeration and ChangeNotify */
  67     LPITEMIDLIST pidlRoot;  /* absolute pidl */
  68
  69     UINT cfShellIDList;        /* clipboardformat for IDropTarget */
  70     BOOL fAcceptFmt;        /* flag for pending Drop */
  71 } IDesktopFolderImpl;
  72
  73 static IDesktopFolderImpl *cached_sf;
  74
  75 static inline IDesktopFolderImpl *impl_from_IShellFolder2(IShellFolder2 *iface)
  76 {
  77     return CONTAINING_RECORD(iface, IDesktopFolderImpl, IShellFolder2_iface);
  78 }
  79
  80 static inline IDesktopFolderImpl *impl_from_IPersistFolder2( IPersistFolder2 *iface )
  81 {
  82     return CONTAINING_RECORD(iface, IDesktopFolderImpl, IPersistFolder2_iface);
  83 }
  84
  85 static const shvheader desktop_header[] =
  86 {
  87     { &FMTID_Storage, PID_STG_NAME, IDS_SHV_COLUMN1, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT,  LVCFMT_RIGHT, 15 },
  88     { &FMTID_Storage, PID_STG_SIZE, IDS_SHV_COLUMN2, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT,  LVCFMT_RIGHT, 10 },
  89     { &FMTID_Storage, PID_STG_STORAGETYPE, IDS_SHV_COLUMN3, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT,  LVCFMT_RIGHT, 10 },
  90     { &FMTID_Storage, PID_STG_WRITETIME, IDS_SHV_COLUMN4, SHCOLSTATE_TYPE_DATE | SHCOLSTATE_ONBYDEFAULT, LVCFMT_RIGHT, 12 },
  91     { &FMTID_Storage, PID_STG_ATTRIBUTES, IDS_SHV_COLUMN5, SHCOLSTATE_TYPE_STR | SHCOLSTATE_ONBYDEFAULT,  LVCFMT_RIGHT, 5  },
  92 };
  93
  94 /**************************************************************************
  95  *    ISF_Desktop_fnQueryInterface
  96  *
  97  */
  98 static HRESULT WINAPI ISF_Desktop_fnQueryInterface(
  99                 IShellFolder2 * iface, REFIID riid, LPVOID * ppvObj)
 100 {
 101     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 102
 103     TRACE ("(%p)->(%s,%p)\n", This, shdebugstr_guid (riid), ppvObj);
 104
 105     if (!ppvObj) return E_POINTER;
 106
 107     *ppvObj = NULL;
 108
 109     if (IsEqualIID (riid, &IID_IUnknown) ||
 110         IsEqualIID (riid, &IID_IShellFolder) ||
 111         IsEqualIID (riid, &IID_IShellFolder2))
 112     {
 113         *ppvObj = &This->IShellFolder2_iface;
 114     }
 115     else if (IsEqualIID (riid, &IID_IPersist) ||
 116              IsEqualIID (riid, &IID_IPersistFolder) ||
 117              IsEqualIID (riid, &IID_IPersistFolder2))
 118     {
 119         *ppvObj = &This->IPersistFolder2_iface;
 120     }
 121
 122     if (*ppvObj)
 123     {
 124         IUnknown_AddRef ((IUnknown *) (*ppvObj));
 125         TRACE ("-- Interface: (%p)->(%p)\n", ppvObj, *ppvObj);
 126         return S_OK;
 127     }
 128     TRACE ("-- Interface: E_NOINTERFACE\n");
 129     return E_NOINTERFACE;
 130 }
 131
 132 static ULONG WINAPI ISF_Desktop_fnAddRef (IShellFolder2 * iface)
 133 {
 134     return 2; /* non-heap based object */
 135 }
 136
 137 static ULONG WINAPI ISF_Desktop_fnRelease (IShellFolder2 * iface)
 138 {
 139     return 1; /* non-heap based object */
 140 }
 141
 142 /**************************************************************************
 143  *    ISF_Desktop_fnParseDisplayName
 144  *
 145  * NOTES
 146  *    "::{20D04FE0-3AEA-1069-A2D8-08002B30309D}" and "" binds
 147  *    to MyComputer
 148  */
 149 static HRESULT WINAPI ISF_Desktop_fnParseDisplayName (IShellFolder2 * iface,
 150                 HWND hwndOwner, LPBC pbc, LPOLESTR lpszDisplayName,
 151                 DWORD * pchEaten, LPITEMIDLIST * ppidl, DWORD * pdwAttributes)
 152 {
 153     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 154     WCHAR c, szElement[MAX_PATH];
 155     LPCWSTR szNext = NULL;
 156     LPITEMIDLIST pidlTemp = NULL;
 157     PARSEDURLW urldata;
 158     HRESULT hr = S_OK;
 159     CLSID clsid;
 160
 161     TRACE ("(%p)->(HWND=%p,%p,%p=%s,%p,pidl=%p,%p)\n",
 162            This, hwndOwner, pbc, lpszDisplayName, debugstr_w(lpszDisplayName),
 163            pchEaten, ppidl, pdwAttributes);
 164
 165     if (!ppidl) return E_INVALIDARG;
 166     *ppidl = 0;
 167
 168     if (!lpszDisplayName) return E_INVALIDARG;
 169
 170     if (pchEaten)
 171         *pchEaten = 0;        /* strange but like the original */
 172
 173     urldata.cbSize = sizeof(urldata);
 174
 175     if (lpszDisplayName[0] == ':' && lpszDisplayName[1] == ':')
 176     {
 177         szNext = GetNextElementW (lpszDisplayName, szElement, MAX_PATH);
 178         TRACE ("-- element: %s\n", debugstr_w (szElement));
 179         SHCLSIDFromStringW (szElement + 2, &clsid);
 180         pidlTemp = _ILCreateGuid (PT_GUID, &clsid);
 181     }
 182     /* we can't use PathGetDriveNumberW because we can't have the \\?\ prefix */
 183     else if ((c = towupper(lpszDisplayName[0])) >= 'A' && c <= 'Z' && lpszDisplayName[1] == ':')
 184     {
 185         /* it's a filesystem path with a drive. Let MyComputer/UnixDosFolder parse it */
 186         pidlTemp = _ILCreateMyComputer ();
 187         szNext = lpszDisplayName;
 188     }
 189     else if (!wcsncmp( lpszDisplayName, L"\\\\?\\unix\\", 9 ))
 190     {
 191         pidlTemp = _ILCreateGuid(PT_GUID, &CLSID_UnixDosFolder);
 192         szNext = lpszDisplayName;
 193     }
 194     else if (PathIsUNCW(lpszDisplayName))
 195     {
 196         pidlTemp = _ILCreateNetwork();
 197         szNext = lpszDisplayName;
 198     }
 199     else if( (pidlTemp = SHELL32_CreatePidlFromBindCtx(pbc, lpszDisplayName)) )
 200     {
 201         *ppidl = pidlTemp;
 202         return S_OK;
 203     }
 204     else if (SUCCEEDED(ParseURLW(lpszDisplayName, &urldata)))
 205     {
 206         if (urldata.nScheme == URL_SCHEME_SHELL) /* handle shell: urls */
 207         {
 208             TRACE ("-- shell url: %s\n", debugstr_w(urldata.pszSuffix));
 209             SHCLSIDFromStringW (urldata.pszSuffix+2, &clsid);
 210             pidlTemp = _ILCreateGuid (PT_GUID, &clsid);
 211         }
 212         else
 213             return IEParseDisplayNameWithBCW(CP_ACP,lpszDisplayName,pbc,ppidl);
 214     }
 215     else
 216     {
 217         /* it's a filesystem path on the desktop. Let a FSFolder parse it */
 218
 219         if (*lpszDisplayName)
 220         {
 221             if (*lpszDisplayName == '/')
 222             {
 223                 /* UNIX paths should be parsed by unixfs */
 224                 IShellFolder *unixFS;
 225                 hr = UnixFolder_Constructor(NULL, &IID_IShellFolder, (LPVOID*)&unixFS);
 226                 if (SUCCEEDED(hr))
 227                 {
 228                     hr = IShellFolder_ParseDisplayName(unixFS, NULL, NULL,
 229                             lpszDisplayName, NULL, &pidlTemp, NULL);
 230                     IShellFolder_Release(unixFS);
 231                 }
 232             }
 233             else
 234             {
 235                 /* build a complete path to create a simple pidl */
 236                 WCHAR szPath[MAX_PATH];
 237                 LPWSTR pathPtr;
 238
 239                 lstrcpynW(szPath, This->sPathTarget, MAX_PATH);
 240                 pathPtr = PathAddBackslashW(szPath);
 241                 if (pathPtr)
 242                 {
 243                     lstrcpynW(pathPtr, lpszDisplayName, MAX_PATH - (pathPtr - szPath));
 244                     hr = _ILCreateFromPathW(szPath, &pidlTemp);
 245                 }
 246                 else
 247                 {
 248                     /* should never reach here, but for completeness */
 249                     hr = E_NOT_SUFFICIENT_BUFFER;
 250                 }
 251             }
 252         }
 253         else
 254             pidlTemp = _ILCreateMyComputer();
 255
 256         szNext = NULL;
 257     }
 258
 259     if (SUCCEEDED(hr) && pidlTemp)
 260     {
 261         if (szNext && *szNext)
 262         {
 263             hr = SHELL32_ParseNextElement(iface, hwndOwner, pbc,
 264                     &pidlTemp, (LPOLESTR) szNext, pchEaten, pdwAttributes);
 265         }
 266         else
 267         {
 268             if (pdwAttributes && *pdwAttributes)
 269                 hr = SHELL32_GetItemAttributes(iface, pidlTemp, pdwAttributes);
 270         }
 271     }
 272
 273     *ppidl = pidlTemp;
 274
 275     TRACE ("(%p)->(-- ret=0x%08lx)\n", This, hr);
 276
 277     return hr;
 278 }
 279
 280 static void add_shell_namespace_extensions(IEnumIDListImpl *list, HKEY root)
 281 {
 282     WCHAR guid[39], clsidkeyW[60];
 283     DWORD size, i = 0;
 284     HKEY hkey;
 285
 286     if (RegOpenKeyExW(root, L"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Desktop\\Namespace", 0, KEY_READ, &hkey))
 287         return;
 288
 289     size = ARRAY_SIZE(guid);
 290     while (!RegEnumKeyExW(hkey, i++, guid, &size, 0, NULL, NULL, NULL))
 291     {
 292         DWORD attributes, value_size = sizeof(attributes);
 293
 294         /* Check if extension is configured as nonenumerable */
 295         swprintf(clsidkeyW, ARRAY_SIZE(clsidkeyW), L"CLSID\\%s\\ShellFolder", guid);
 296         RegGetValueW(HKEY_CLASSES_ROOT, clsidkeyW, L"Attributes", RRF_RT_REG_DWORD | RRF_ZEROONFAILURE,
 297             NULL, &attributes, &value_size);
 298
 299         if (!(attributes & SFGAO_NONENUMERATED))
 300             AddToEnumList(list, _ILCreateGuidFromStrW(guid));
 301         size = ARRAY_SIZE(guid);
 302     }
 303
 304     RegCloseKey(hkey);
 305 }
 306
 307 /**************************************************************************
 308  *  CreateDesktopEnumList()
 309  */
 310 static BOOL CreateDesktopEnumList(IEnumIDListImpl *list, DWORD dwFlags)
 311 {
 312     BOOL ret = TRUE;
 313     WCHAR szPath[MAX_PATH];
 314
 315     TRACE("(%p)->(flags=0x%08lx)\n", list, dwFlags);
 316
 317     /* enumerate the root folders */
 318     if (dwFlags & SHCONTF_FOLDERS)
 319     {
 320         ret = AddToEnumList(list, _ILCreateMyComputer());
 321         add_shell_namespace_extensions(list, HKEY_LOCAL_MACHINE);
 322         add_shell_namespace_extensions(list, HKEY_CURRENT_USER);
 323     }
 324
 325     /* enumerate the elements in %windir%\desktop */
 326     ret = ret && SHGetSpecialFolderPathW(0, szPath, CSIDL_DESKTOPDIRECTORY, FALSE);
 327     ret = ret && CreateFolderEnumList(list, szPath, dwFlags);
 328
 329     return ret;
 330 }
 331
 332 /**************************************************************************
 333  *        ISF_Desktop_fnEnumObjects
 334  */
 335 static HRESULT WINAPI ISF_Desktop_fnEnumObjects (IShellFolder2 * iface,
 336                 HWND hwndOwner, DWORD dwFlags, LPENUMIDLIST * ppEnumIDList)
 337 {
 338     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 339     IEnumIDListImpl *list;
 340
 341     TRACE ("(%p)->(HWND=%p flags=0x%08lx pplist=%p)\n",
 342            This, hwndOwner, dwFlags, ppEnumIDList);
 343
 344     if (!(list = IEnumIDList_Constructor()))
 345         return E_OUTOFMEMORY;
 346     CreateDesktopEnumList(list, dwFlags);
 347     *ppEnumIDList = &list->IEnumIDList_iface;
 348
 349     TRACE ("-- (%p)->(new ID List: %p)\n", This, *ppEnumIDList);
 350
 351     return S_OK;
 352 }
 353
 354 /**************************************************************************
 355  *        ISF_Desktop_fnBindToObject
 356  */
 357 static HRESULT WINAPI ISF_Desktop_fnBindToObject (IShellFolder2 * iface,
 358                 LPCITEMIDLIST pidl, LPBC pbcReserved, REFIID riid, LPVOID * ppvOut)
 359 {
 360     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 361
 362     TRACE ("(%p)->(pidl=%p,%p,%s,%p)\n",
 363            This, pidl, pbcReserved, shdebugstr_guid (riid), ppvOut);
 364
 365     return SHELL32_BindToChild( This->pidlRoot, &CLSID_ShellFSFolder, This->sPathTarget, pidl, riid, ppvOut );
 366 }
 367
 368 /**************************************************************************
 369  *    ISF_Desktop_fnBindToStorage
 370  */
 371 static HRESULT WINAPI ISF_Desktop_fnBindToStorage (IShellFolder2 * iface,
 372                 LPCITEMIDLIST pidl, LPBC pbcReserved, REFIID riid, LPVOID * ppvOut)
 373 {
 374     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 375
 376     FIXME ("(%p)->(pidl=%p,%p,%s,%p) stub\n",
 377            This, pidl, pbcReserved, shdebugstr_guid (riid), ppvOut);
 378
 379     *ppvOut = NULL;
 380     return E_NOTIMPL;
 381 }
 382
 383 /**************************************************************************
 384  *     ISF_Desktop_fnCompareIDs
 385  */
 386 static HRESULT WINAPI ISF_Desktop_fnCompareIDs (IShellFolder2 *iface,
 387                         LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
 388 {
 389     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 390     HRESULT hr;
 391
 392     TRACE ("(%p)->(0x%08Ix,pidl1=%p,pidl2=%p)\n", This, lParam, pidl1, pidl2);
 393     hr = SHELL32_CompareIDs(iface, lParam, pidl1, pidl2);
 394     TRACE ("-- 0x%08lx\n", hr);
 395     return hr;
 396 }
 397
 398 /**************************************************************************
 399  *    ISF_Desktop_fnCreateViewObject
 400  */
 401 static HRESULT WINAPI ISF_Desktop_fnCreateViewObject (IShellFolder2 * iface,
 402                               HWND hwndOwner, REFIID riid, LPVOID * ppvOut)
 403 {
 404     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 405     LPSHELLVIEW pShellView;
 406     HRESULT hr = E_INVALIDARG;
 407
 408     TRACE ("(%p)->(hwnd=%p,%s,%p)\n",
 409            This, hwndOwner, shdebugstr_guid (riid), ppvOut);
 410
 411     if (!ppvOut)
 412         return E_INVALIDARG;
 413
 414     *ppvOut = NULL;
 415
 416     if (IsEqualIID (riid, &IID_IDropTarget))
 417     {
 418         WARN ("IDropTarget not implemented\n");
 419         hr = E_NOTIMPL;
 420     }
 421     else if (IsEqualIID (riid, &IID_IContextMenu))
 422     {
 423         hr = BackgroundMenu_Constructor((IShellFolder*)iface, TRUE, riid, ppvOut);
 424     }
 425     else if (IsEqualIID (riid, &IID_IShellView))
 426     {
 427         pShellView = IShellView_Constructor ((IShellFolder *) iface);
 428         if (pShellView)
 429         {
 430             hr = IShellView_QueryInterface (pShellView, riid, ppvOut);
 431             IShellView_Release (pShellView);
 432         }
 433     }
 434     TRACE ("-- (%p)->(interface=%p)\n", This, ppvOut);
 435     return hr;
 436 }
 437
 438 /**************************************************************************
 439  *  ISF_Desktop_fnGetAttributesOf
 440  */
 441 static HRESULT WINAPI ISF_Desktop_fnGetAttributesOf (IShellFolder2 * iface,
 442                 UINT cidl, LPCITEMIDLIST * apidl, DWORD * rgfInOut)
 443 {
 444     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 445
 446     static const DWORD dwDesktopAttributes =
 447         SFGAO_STORAGE | SFGAO_HASPROPSHEET | SFGAO_STORAGEANCESTOR |
 448         SFGAO_FILESYSANCESTOR | SFGAO_FOLDER | SFGAO_FILESYSTEM | SFGAO_HASSUBFOLDER;
 449     static const DWORD dwMyComputerAttributes =
 450         SFGAO_CANRENAME | SFGAO_CANDELETE | SFGAO_HASPROPSHEET |
 451         SFGAO_DROPTARGET | SFGAO_FILESYSANCESTOR | SFGAO_FOLDER | SFGAO_HASSUBFOLDER;
 452
 453     TRACE ("(%p)->(cidl=%d apidl=%p mask=%p (0x%08lx))\n",
 454            This, cidl, apidl, rgfInOut, rgfInOut ? *rgfInOut : 0);
 455
 456     if (!rgfInOut)
 457         return E_INVALIDARG;
 458     if (cidl && !apidl)
 459         return E_INVALIDARG;
 460
 461     if (*rgfInOut == 0)
 462         *rgfInOut = ~0;
 463
 464     if(cidl == 0) {
 465         *rgfInOut &= dwDesktopAttributes;
 466     } else {
 467         while (cidl > 0 && *apidl) {
 468             pdump (*apidl);
 469             if (_ILIsDesktop(*apidl)) {
 470                 *rgfInOut &= dwDesktopAttributes;
 471             } else if (_ILIsMyComputer(*apidl)) {
 472                 *rgfInOut &= dwMyComputerAttributes;
 473             } else {
 474                 SHELL32_GetItemAttributes(iface, *apidl, rgfInOut);
 475             }
 476             apidl++;
 477             cidl--;
 478         }
 479     }
 480     /* make sure SFGAO_VALIDATE is cleared, some apps depend on that */
 481     *rgfInOut &= ~SFGAO_VALIDATE;
 482
 483     TRACE ("-- result=0x%08lx\n", *rgfInOut);
 484
 485     return S_OK;
 486 }
 487
 488 /**************************************************************************
 489  *    ISF_Desktop_fnGetUIObjectOf
 490  *
 491  * PARAMETERS
 492  *  HWND           hwndOwner, //[in ] Parent window for any output
 493  *  UINT           cidl,      //[in ] array size
 494  *  LPCITEMIDLIST* apidl,     //[in ] simple pidl array
 495  *  REFIID         riid,      //[in ] Requested Interface
 496  *  UINT*          prgfInOut, //[   ] reserved
 497  *  LPVOID*        ppvObject) //[out] Resulting Interface
 498  *
 499  */
 500 static HRESULT WINAPI ISF_Desktop_fnGetUIObjectOf (IShellFolder2 * iface,
 501                 HWND hwndOwner, UINT cidl, LPCITEMIDLIST * apidl,
 502                 REFIID riid, UINT * prgfInOut, LPVOID * ppvOut)
 503 {
 504     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 505
 506     LPITEMIDLIST pidl;
 507     IUnknown *pObj = NULL;
 508     HRESULT hr = E_INVALIDARG;
 509
 510     TRACE ("(%p)->(%p,%u,apidl=%p,%s,%p,%p)\n",
 511        This, hwndOwner, cidl, apidl, shdebugstr_guid (riid), prgfInOut, ppvOut);
 512
 513     if (!ppvOut)
 514         return E_INVALIDARG;
 515
 516     *ppvOut = NULL;
 517
 518     if (IsEqualIID (riid, &IID_IContextMenu))
 519     {
 520         if (cidl > 0)
 521             return ItemMenu_Constructor((IShellFolder*)iface, This->pidlRoot, apidl, cidl, riid, ppvOut);
 522         else
 523             return BackgroundMenu_Constructor((IShellFolder*)iface, TRUE, riid, ppvOut);
 524     }
 525     else if (IsEqualIID (riid, &IID_IDataObject) && (cidl >= 1))
 526     {
 527         pObj = (LPUNKNOWN) IDataObject_Constructor( hwndOwner,
 528                                                   This->pidlRoot, apidl, cidl);
 529         hr = S_OK;
 530     }
 531     else if (IsEqualIID (riid, &IID_IExtractIconA) && (cidl == 1))
 532     {
 533         pidl = ILCombine (This->pidlRoot, apidl[0]);
 534         pObj = (LPUNKNOWN) IExtractIconA_Constructor (pidl);
 535         SHFree (pidl);
 536         hr = S_OK;
 537     }
 538     else if (IsEqualIID (riid, &IID_IExtractIconW) && (cidl == 1))
 539     {
 540         pidl = ILCombine (This->pidlRoot, apidl[0]);
 541         pObj = (LPUNKNOWN) IExtractIconW_Constructor (pidl);
 542         SHFree (pidl);
 543         hr = S_OK;
 544     }
 545     else if (IsEqualIID (riid, &IID_IDropTarget) && (cidl >= 1))
 546     {
 547         hr = IShellFolder2_QueryInterface (iface,
 548                                           &IID_IDropTarget, (LPVOID *) & pObj);
 549     }
 550     else if ((IsEqualIID(riid,&IID_IShellLinkW) ||
 551               IsEqualIID(riid,&IID_IShellLinkA)) && (cidl == 1))
 552     {
 553         pidl = ILCombine (This->pidlRoot, apidl[0]);
 554         hr = IShellLink_ConstructFromFile(NULL, riid, pidl, &pObj);
 555         SHFree (pidl);
 556     }
 557     else
 558         hr = E_NOINTERFACE;
 559
 560     if (SUCCEEDED(hr) && !pObj)
 561         hr = E_OUTOFMEMORY;
 562
 563     *ppvOut = pObj;
 564     TRACE ("(%p)->hr=0x%08lx\n", This, hr);
 565     return hr;
 566 }
 567
 568 /**************************************************************************
 569  *    ISF_Desktop_fnGetDisplayNameOf
 570  *
 571  * NOTES
 572  *    special case: pidl = null gives desktop-name back
 573  */
 574 static HRESULT WINAPI ISF_Desktop_fnGetDisplayNameOf (IShellFolder2 * iface,
 575                 LPCITEMIDLIST pidl, DWORD dwFlags, LPSTRRET strRet)
 576 {
 577     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 578     HRESULT hr = S_OK;
 579     LPWSTR pszPath;
 580
 581     TRACE ("(%p)->(pidl=%p,0x%08lx,%p)\n", This, pidl, dwFlags, strRet);
 582     pdump (pidl);
 583
 584     if (!strRet)
 585         return E_INVALIDARG;
 586
 587     pszPath = CoTaskMemAlloc((MAX_PATH +1) * sizeof(WCHAR));
 588     if (!pszPath)
 589         return E_OUTOFMEMORY;
 590
 591     if (_ILIsDesktop (pidl))
 592     {
 593         if ((GET_SHGDN_RELATION (dwFlags) == SHGDN_NORMAL) &&
 594             (GET_SHGDN_FOR (dwFlags) & SHGDN_FORPARSING))
 595             lstrcpyW(pszPath, This->sPathTarget);
 596         else
 597             HCR_GetClassNameW(&CLSID_ShellDesktop, pszPath, MAX_PATH);
 598     }
 599     else if (_ILIsPidlSimple (pidl))
 600     {
 601         GUID const *clsid;
 602
 603         if ((clsid = _ILGetGUIDPointer (pidl)))
 604         {
 605             if ((GET_SHGDN_FOR (dwFlags) & (SHGDN_FORPARSING | SHGDN_FORADDRESSBAR)) == SHGDN_FORPARSING)
 606             {
 607                 BOOL bWantsForParsing;
 608
 609                 /*
 610                  * We can only get a filesystem path from a shellfolder if the
 611                  *  value WantsFORPARSING in CLSID\\{...}\\shellfolder exists.
 612                  *
 613                  * Exception: The MyComputer folder doesn't have this key,
 614                  *   but any other filesystem backed folder it needs it.
 615                  */
 616                 if (IsEqualIID (clsid, &CLSID_MyComputer))
 617                 {
 618                     bWantsForParsing = TRUE;
 619                 }
 620                 else
 621                 {
 622                     /* get the "WantsFORPARSING" flag from the registry */
 623                     WCHAR szRegPath[100];
 624                     LONG r;
 625
 626                     lstrcpyW (szRegPath, L"CLSID\\");
 627                     SHELL32_GUIDToStringW (clsid, &szRegPath[6]);
 628                     lstrcatW (szRegPath, L"\\shellfolder");
 629                     r = SHGetValueW(HKEY_CLASSES_ROOT, szRegPath, L"WantsForParsing", NULL, NULL, NULL);
 630                     if (r == ERROR_SUCCESS)
 631                         bWantsForParsing = TRUE;
 632                     else
 633                         bWantsForParsing = FALSE;
 634                 }
 635
 636                 if ((GET_SHGDN_RELATION (dwFlags) == SHGDN_NORMAL) &&
 637                      bWantsForParsing)
 638                 {
 639                     /*
 640                      * we need the filesystem path to the destination folder.
 641                      * Only the folder itself can know it
 642                      */
 643                     hr = SHELL32_GetDisplayNameOfChild (iface, pidl, dwFlags,
 644                                                         pszPath,
 645                                                         MAX_PATH);
 646                 }
 647                 else
 648                 {
 649                     /* parsing name like ::{...} */
 650                     pszPath[0] = ':';
 651                     pszPath[1] = ':';
 652                     SHELL32_GUIDToStringW (clsid, &pszPath[2]);
 653                 }
 654             }
 655             else
 656             {
 657                 /* user friendly name */
 658                 HCR_GetClassNameW (clsid, pszPath, MAX_PATH);
 659             }
 660         }
 661         else
 662         {
 663             int cLen = 0;
 664
 665             /* file system folder or file rooted at the desktop */
 666             if ((GET_SHGDN_FOR(dwFlags) == SHGDN_FORPARSING) &&
 667                 (GET_SHGDN_RELATION(dwFlags) != SHGDN_INFOLDER))
 668             {
 669                 lstrcpynW(pszPath, This->sPathTarget, MAX_PATH - 1);
 670                 PathAddBackslashW(pszPath);
 671                 cLen = lstrlenW(pszPath);
 672             }
 673
 674             _ILSimpleGetTextW(pidl, pszPath + cLen, MAX_PATH - cLen);
 675
 676             if (!_ILIsFolder(pidl))
 677                 SHELL_FS_ProcessDisplayFilename(pszPath, dwFlags);
 678         }
 679     }
 680     else
 681     {
 682         /* a complex pidl, let the subfolder do the work */
 683         hr = SHELL32_GetDisplayNameOfChild (iface, pidl, dwFlags,
 684                                             pszPath, MAX_PATH);
 685     }
 686
 687     if (SUCCEEDED(hr))
 688     {
 689         /* Win9x always returns ANSI strings, NT always returns Unicode strings */
 690         if (GetVersion() & 0x80000000)
 691         {
 692             strRet->uType = STRRET_CSTR;
 693             if (!WideCharToMultiByte(CP_ACP, 0, pszPath, -1, strRet->u.cStr, MAX_PATH,
 694                                      NULL, NULL))
 695                 strRet->u.cStr[0] = '\0';
 696             CoTaskMemFree(pszPath);
 697         }
 698         else
 699         {
 700             strRet->uType = STRRET_WSTR;
 701             strRet->u.pOleStr = pszPath;
 702         }
 703     }
 704     else
 705         CoTaskMemFree(pszPath);
 706
 707     TRACE ("-- (%p)->(%s,0x%08lx)\n", This,
 708     strRet->uType == STRRET_CSTR ? strRet->u.cStr :
 709     debugstr_w(strRet->u.pOleStr), hr);
 710     return hr;
 711 }
 712
 713 /**************************************************************************
 714  *  ISF_Desktop_fnSetNameOf
 715  *  Changes the name of a file object or subfolder, possibly changing its item
 716  *  identifier in the process.
 717  *
 718  * PARAMETERS
 719  *  HWND          hwndOwner,  //[in ] Owner window for output
 720  *  LPCITEMIDLIST pidl,       //[in ] simple pidl of item to change
 721  *  LPCOLESTR     lpszName,   //[in ] the items new display name
 722  *  DWORD         dwFlags,    //[in ] SHGNO formatting flags
 723  *  LPITEMIDLIST* ppidlOut)   //[out] simple pidl returned
 724  */
 725 static HRESULT WINAPI ISF_Desktop_fnSetNameOf (IShellFolder2 * iface,
 726                 HWND hwndOwner, LPCITEMIDLIST pidl,    /* simple pidl */
 727                 LPCOLESTR lpName, DWORD dwFlags, LPITEMIDLIST * pPidlOut)
 728 {
 729     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 730
 731     FIXME ("(%p)->(%p,pidl=%p,%s,%lu,%p) stub\n", This, hwndOwner, pidl,
 732            debugstr_w (lpName), dwFlags, pPidlOut);
 733
 734     return E_FAIL;
 735 }
 736
 737 static HRESULT WINAPI ISF_Desktop_fnGetDefaultSearchGUID(IShellFolder2 *iface, GUID *guid)
 738 {
 739     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 740     TRACE("(%p)->(%p)\n", This, guid);
 741     return E_NOTIMPL;
 742 }
 743
 744 static HRESULT WINAPI ISF_Desktop_fnEnumSearches (IShellFolder2 *iface,
 745                 IEnumExtraSearch ** ppenum)
 746 {
 747     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 748     FIXME ("(%p)->(%p) stub\n", This, ppenum);
 749     return E_NOTIMPL;
 750 }
 751
 752 static HRESULT WINAPI ISF_Desktop_fnGetDefaultColumn(IShellFolder2 *iface, DWORD reserved, ULONG *sort, ULONG *display)
 753 {
 754     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 755
 756     TRACE ("(%p)->(%#lx, %p, %p)\n", This, reserved, sort, display);
 757
 758     return E_NOTIMPL;
 759 }
 760
 761 static HRESULT WINAPI ISF_Desktop_fnGetDefaultColumnState (
 762                 IShellFolder2 * iface, UINT iColumn, DWORD * pcsFlags)
 763 {
 764     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 765
 766     TRACE ("(%p)->(%d %p)\n", This, iColumn, pcsFlags);
 767
 768     if (!pcsFlags || iColumn >= ARRAY_SIZE(desktop_header))
 769         return E_INVALIDARG;
 770
 771     *pcsFlags = desktop_header[iColumn].pcsFlags;
 772
 773     return S_OK;
 774 }
 775
 776 static HRESULT WINAPI ISF_Desktop_fnGetDetailsEx (IShellFolder2 * iface,
 777                 LPCITEMIDLIST pidl, const SHCOLUMNID * pscid, VARIANT * pv)
 778 {
 779     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 780     FIXME ("(%p)->(%p %p %p) stub\n", This, pidl, pscid, pv);
 781     return E_NOTIMPL;
 782 }
 783
 784 static HRESULT WINAPI ISF_Desktop_fnGetDetailsOf (IShellFolder2 * iface,
 785                 LPCITEMIDLIST pidl, UINT iColumn, SHELLDETAILS * psd)
 786 {
 787     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 788
 789     TRACE ("(%p)->(%p %i %p)\n", This, pidl, iColumn, psd);
 790
 791     if (!psd || iColumn >= ARRAY_SIZE(desktop_header))
 792         return E_INVALIDARG;
 793
 794     if (!pidl)
 795         return SHELL32_GetColumnDetails(desktop_header, iColumn, psd);
 796
 797     return shellfolder_get_file_details( iface, pidl, desktop_header, iColumn, psd );
 798 }
 799
 800 static HRESULT WINAPI ISF_Desktop_fnMapColumnToSCID(IShellFolder2 *iface, UINT column, SHCOLUMNID *scid)
 801 {
 802     IDesktopFolderImpl *This = impl_from_IShellFolder2(iface);
 803
 804     TRACE("(%p)->(%u %p)\n", This, column, scid);
 805
 806     if (column >= ARRAY_SIZE(desktop_header))
 807         return E_INVALIDARG;
 808
 809     return shellfolder_map_column_to_scid(desktop_header, column, scid);
 810 }
 811
 812 static const IShellFolder2Vtbl vt_MCFldr_ShellFolder2 =
 813 {
 814     ISF_Desktop_fnQueryInterface,
 815     ISF_Desktop_fnAddRef,
 816     ISF_Desktop_fnRelease,
 817     ISF_Desktop_fnParseDisplayName,
 818     ISF_Desktop_fnEnumObjects,
 819     ISF_Desktop_fnBindToObject,
 820     ISF_Desktop_fnBindToStorage,
 821     ISF_Desktop_fnCompareIDs,
 822     ISF_Desktop_fnCreateViewObject,
 823     ISF_Desktop_fnGetAttributesOf,
 824     ISF_Desktop_fnGetUIObjectOf,
 825     ISF_Desktop_fnGetDisplayNameOf,
 826     ISF_Desktop_fnSetNameOf,
 827     /* ShellFolder2 */
 828     ISF_Desktop_fnGetDefaultSearchGUID,
 829     ISF_Desktop_fnEnumSearches,
 830     ISF_Desktop_fnGetDefaultColumn,
 831     ISF_Desktop_fnGetDefaultColumnState,
 832     ISF_Desktop_fnGetDetailsEx,
 833     ISF_Desktop_fnGetDetailsOf,
 834     ISF_Desktop_fnMapColumnToSCID
 835 };
 836
 837 /**************************************************************************
 838  *    IPersist
 839  */
 840 static HRESULT WINAPI ISF_Desktop_IPersistFolder2_fnQueryInterface(
 841     IPersistFolder2 *iface, REFIID riid, LPVOID *ppvObj)
 842 {
 843     IDesktopFolderImpl *This = impl_from_IPersistFolder2( iface );
 844     return IShellFolder2_QueryInterface(&This->IShellFolder2_iface, riid, ppvObj);
 845 }
 846
 847 static ULONG WINAPI ISF_Desktop_IPersistFolder2_fnAddRef(
 848     IPersistFolder2 *iface)
 849 {
 850     IDesktopFolderImpl *This = impl_from_IPersistFolder2( iface );
 851     return IShellFolder2_AddRef(&This->IShellFolder2_iface);
 852 }
 853
 854 static ULONG WINAPI ISF_Desktop_IPersistFolder2_fnRelease(
 855     IPersistFolder2 *iface)
 856 {
 857     IDesktopFolderImpl *This = impl_from_IPersistFolder2( iface );
 858     return IShellFolder2_Release(&This->IShellFolder2_iface);
 859 }
 860
 861 static HRESULT WINAPI ISF_Desktop_IPersistFolder2_fnGetClassID(
 862     IPersistFolder2 *iface, CLSID *clsid)
 863 {
 864     *clsid = CLSID_ShellDesktop;
 865     return S_OK;
 866 }
 867 static HRESULT WINAPI ISF_Desktop_IPersistFolder2_fnInitialize(
 868     IPersistFolder2 *iface, LPCITEMIDLIST pidl)
 869 {
 870     IDesktopFolderImpl *This = impl_from_IPersistFolder2( iface );
 871     FIXME ("(%p)->(%p) stub\n", This, pidl);
 872     return E_NOTIMPL;
 873 }
 874 static HRESULT WINAPI ISF_Desktop_IPersistFolder2_fnGetCurFolder(
 875     IPersistFolder2 *iface, LPITEMIDLIST *ppidl)
 876 {
 877     IDesktopFolderImpl *This = impl_from_IPersistFolder2( iface );
 878     *ppidl = ILClone(This->pidlRoot);
 879     return S_OK;
 880 }
 881
 882 static const IPersistFolder2Vtbl vt_IPersistFolder2 =
 883 {
 884     ISF_Desktop_IPersistFolder2_fnQueryInterface,
 885     ISF_Desktop_IPersistFolder2_fnAddRef,
 886     ISF_Desktop_IPersistFolder2_fnRelease,
 887     ISF_Desktop_IPersistFolder2_fnGetClassID,
 888     ISF_Desktop_IPersistFolder2_fnInitialize,
 889     ISF_Desktop_IPersistFolder2_fnGetCurFolder
 890 };
 891
 892 void release_desktop_folder(void)
 893 {
 894     if (!cached_sf) return;
 895     SHFree(cached_sf->pidlRoot);
 896     SHFree(cached_sf->sPathTarget);
 897     LocalFree(cached_sf);
 898 }
 899
 900 /**************************************************************************
 901  *    ISF_Desktop_Constructor
 902  */
 903 HRESULT WINAPI ISF_Desktop_Constructor (
 904                 IUnknown * pUnkOuter, REFIID riid, LPVOID * ppv)
 905 {
 906     WCHAR szMyPath[MAX_PATH];
 907
 908     TRACE ("unkOut=%p %s\n", pUnkOuter, shdebugstr_guid (riid));
 909
 910     if (!ppv)
 911         return E_POINTER;
 912     if (pUnkOuter)
 913         return CLASS_E_NOAGGREGATION;
 914
 915     if (!cached_sf)
 916     {
 917         IDesktopFolderImpl *sf;
 918
 919         if (!SHGetSpecialFolderPathW( 0, szMyPath, CSIDL_DESKTOPDIRECTORY, FALSE ))
 920             return E_UNEXPECTED;
 921
 922         sf = LocalAlloc( LMEM_ZEROINIT, sizeof (IDesktopFolderImpl) );
 923         if (!sf)
 924             return E_OUTOFMEMORY;
 925
 926         sf->ref = 1;
 927         sf->IShellFolder2_iface.lpVtbl = &vt_MCFldr_ShellFolder2;
 928         sf->IPersistFolder2_iface.lpVtbl = &vt_IPersistFolder2;
 929         sf->pidlRoot = _ILCreateDesktop();    /* my qualified pidl */
 930         sf->sPathTarget = SHAlloc( (lstrlenW(szMyPath) + 1)*sizeof(WCHAR) );
 931         lstrcpyW( sf->sPathTarget, szMyPath );
 932
 933         if (InterlockedCompareExchangePointer((void *)&cached_sf, sf, NULL) != NULL)
 934         {
 935             /* some other thread already been here */
 936             SHFree( sf->pidlRoot );
 937             SHFree( sf->sPathTarget );
 938             LocalFree( sf );
 939         }
 940     }
 941
 942     return IShellFolder2_QueryInterface( &cached_sf->IShellFolder2_iface, riid, ppv );
 943 }
 944
 945 static HRESULT WINAPI active_desktop_QueryInterface(IActiveDesktop *iface, REFIID riid, void **obj)
 946 {
 947     TRACE("%p, %s, %p.\n", iface, debugstr_guid(riid), obj);
 948
 949     *obj = NULL;
 950
 951     if (IsEqualIID(riid, &IID_IActiveDesktop)
 952             || IsEqualIID(riid, &IID_IUnknown))
 953     {
 954         *obj = iface;
 955     }
 956
 957     if (*obj)
 958     {
 959         IUnknown_AddRef((IUnknown *)*obj);
 960         return S_OK;
 961     }
 962
 963     WARN("Unsupported interface %s.\n", debugstr_guid(riid));
 964     *obj = NULL;
 965     return E_NOINTERFACE;
 966 }
 967
 968 static ULONG WINAPI active_desktop_AddRef(IActiveDesktop *iface)
 969 {
 970     return 2;
 971 }
 972
 973 static ULONG WINAPI active_desktop_Release(IActiveDesktop *iface)
 974 {
 975     return 1;
 976 }
 977
 978 static HRESULT WINAPI active_desktop_ApplyChanges(IActiveDesktop *iface, DWORD flags)
 979 {
 980     FIXME("%p, %#lx.\n", iface, flags);
 981
 982     return E_NOTIMPL;
 983 }
 984
 985 static HRESULT WINAPI active_desktop_GetWallpaper(IActiveDesktop *iface, PWSTR wallpaper, UINT length, DWORD flags)
 986 {
 987     FIXME("%p, %p, %u, %#lx.\n", iface, wallpaper, length, flags);
 988
 989     return E_NOTIMPL;
 990 }
 991
 992 static HRESULT WINAPI active_desktop_SetWallpaper(IActiveDesktop *iface, PCWSTR wallpaper, DWORD reserved)
 993 {
 994     FIXME("%p, %s, %#lx.\n", iface, debugstr_w(wallpaper), reserved);
 995
 996     return E_NOTIMPL;
 997 }
 998
 999 static HRESULT WINAPI active_desktop_GetWallpaperOptions(IActiveDesktop *iface, LPWALLPAPEROPT options, DWORD reserved)
1000 {
1001     FIXME("%p, %p, %#lx.\n", iface, options, reserved);
1002
1003     return E_NOTIMPL;
1004 }
1005
1006 static HRESULT WINAPI active_desktop_SetWallpaperOptions(IActiveDesktop *iface, LPCWALLPAPEROPT options, DWORD reserved)
1007 {
1008     FIXME("%p, %p, %#lx.\n", iface, options, reserved);
1009
1010     return E_NOTIMPL;
1011 }
1012
1013 static HRESULT WINAPI active_desktop_GetPattern(IActiveDesktop *iface, PWSTR pattern, UINT length, DWORD reserved)
1014 {
1015     FIXME("%p, %p, %u, %#lx.\n", iface, pattern, length, reserved);
1016
1017     return E_NOTIMPL;
1018 }
1019
1020 static HRESULT WINAPI active_desktop_SetPattern(IActiveDesktop *iface, PCWSTR pattern, DWORD reserved)
1021 {
1022     FIXME("%p, %s, %#lx.\n", iface, debugstr_w(pattern), reserved);
1023
1024     return E_NOTIMPL;
1025 }
1026
1027 static HRESULT WINAPI active_desktop_GetDesktopItemOptions(IActiveDesktop *iface, LPCOMPONENTSOPT options, DWORD reserved)
1028 {
1029     FIXME("%p, %p, %#lx.\n", iface, options, reserved);
1030
1031     return E_NOTIMPL;
1032 }
1033
1034 static HRESULT WINAPI active_desktop_SetDesktopItemOptions(IActiveDesktop *iface, LPCCOMPONENTSOPT options, DWORD reserved)
1035 {
1036     FIXME("%p, %p, %#lx.\n", iface, options, reserved);
1037
1038     return E_NOTIMPL;
1039 }
1040
1041 static HRESULT WINAPI active_desktop_AddDesktopItem(IActiveDesktop *iface, LPCCOMPONENT component, DWORD reserved)
1042 {
1043     FIXME("%p, %p, %#lx.\n", iface, component, reserved);
1044
1045     return E_NOTIMPL;
1046 }
1047
1048 static HRESULT WINAPI active_desktop_AddDesktopItemWithUI(IActiveDesktop *iface, HWND hwnd, LPCOMPONENT component, DWORD reserved)
1049 {
1050     FIXME("%p, %p, %p, %#lx.\n", iface, hwnd, component, reserved);
1051
1052     return E_NOTIMPL;
1053 }
1054
1055 static HRESULT WINAPI active_desktop_ModifyDesktopItem(IActiveDesktop *iface, LPCCOMPONENT component, DWORD flags)
1056 {
1057     FIXME("%p, %p, %#lx.\n", iface, component, flags);
1058
1059     return E_NOTIMPL;
1060 }
1061
1062 static HRESULT WINAPI active_desktop_RemoveDesktopItem(IActiveDesktop *iface, LPCCOMPONENT component, DWORD reserved)
1063 {
1064     FIXME("%p, %p, %#lx.\n", iface, component, reserved);
1065
1066     return E_NOTIMPL;
1067 }
1068
1069 static HRESULT WINAPI active_desktop_GetDesktopItemCount(IActiveDesktop *iface, int *count, DWORD reserved)
1070 {
1071     FIXME("%p, %p, %#lx.\n", iface, count, reserved);
1072
1073     return E_NOTIMPL;
1074 }
1075
1076 static HRESULT WINAPI active_desktop_GetDesktopItem(IActiveDesktop *iface, int index, LPCOMPONENT component, DWORD reserved)
1077 {
1078     FIXME("%p, %d, %p, %#lx.\n", iface, index, component, reserved);
1079
1080     return E_NOTIMPL;
1081 }
1082
1083 static HRESULT WINAPI active_desktop_GetDesktopItemByID(IActiveDesktop *iface, ULONG_PTR id, LPCOMPONENT component, DWORD reserved)
1084 {
1085     FIXME("%p, %Ix, %p, %#lx.\n", iface, id, component, reserved);
1086
1087     return E_NOTIMPL;
1088 }
1089
1090 static HRESULT WINAPI active_desktop_GenerateDesktopItemHtml(IActiveDesktop *iface, PCWSTR filename, LPCOMPONENT component, DWORD reserved)
1091 {
1092     FIXME("%p, %s, %p, %#lx.\n", iface, debugstr_w(filename), component, reserved);
1093
1094     return E_NOTIMPL;
1095 }
1096
1097 static HRESULT WINAPI active_desktop_AddUrl(IActiveDesktop *iface, HWND hwnd, PCWSTR source, LPCOMPONENT component, DWORD flags)
1098 {
1099     FIXME("%p, %p, %s, %p, %#lx.\n", iface, hwnd, debugstr_w(source), component, flags);
1100
1101     return E_NOTIMPL;
1102 }
1103
1104 static HRESULT WINAPI active_desktop_GetDesktopItemBySource(IActiveDesktop *iface, PCWSTR source, LPCOMPONENT component, DWORD reserved)
1105 {
1106     FIXME("%p, %s, %p, %#lx.\n", iface, debugstr_w(source), component, reserved);
1107
1108     return E_NOTIMPL;
1109 }
1110
1111 static const IActiveDesktopVtbl active_desktop_vtbl =
1112 {
1113     active_desktop_QueryInterface,
1114     active_desktop_AddRef,
1115     active_desktop_Release,
1116     active_desktop_ApplyChanges,
1117     active_desktop_GetWallpaper,
1118     active_desktop_SetWallpaper,
1119     active_desktop_GetWallpaperOptions,
1120     active_desktop_SetWallpaperOptions,
1121     active_desktop_GetPattern,
1122     active_desktop_SetPattern,
1123     active_desktop_GetDesktopItemOptions,
1124     active_desktop_SetDesktopItemOptions,
1125     active_desktop_AddDesktopItem,
1126     active_desktop_AddDesktopItemWithUI,
1127     active_desktop_ModifyDesktopItem,
1128     active_desktop_RemoveDesktopItem,
1129     active_desktop_GetDesktopItemCount,
1130     active_desktop_GetDesktopItem,
1131     active_desktop_GetDesktopItemByID,
1132     active_desktop_GenerateDesktopItemHtml,
1133     active_desktop_AddUrl,
1134     active_desktop_GetDesktopItemBySource,
1135 };
1136
1137 HRESULT WINAPI ActiveDesktop_Constructor(IUnknown *outer, REFIID riid, void **obj)
1138 {
1139     static IActiveDesktop object = { &active_desktop_vtbl };
1140     HRESULT hr;
1141
1142     TRACE("%p, %s, %p.\n", outer, debugstr_guid(riid), obj);
1143
1144     if (outer)
1145         return CLASS_E_NOAGGREGATION;
1146
1147     hr = IUnknown_QueryInterface(&object, riid, obj);
1148     IUnknown_Release(&object);
1149
1150     return hr;
1151 }