reactos/dll/win32/shell32/wine/shellole.c

   1 /*
   2  *      handling of SHELL32.DLL OLE-Objects
   3  *
   4  *      Copyright 1997  Marcus Meissner
   5  *      Copyright 1998  Juergen Schmied  <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 <wine/config.h>
  23
  24 #include <stdarg.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27
  28 #define WIN32_NO_STATUS
  29 #define _INC_WINDOWS
  30 #define COBJMACROS
  31 #define NONAMELESSUNION
  32
  33 #include <windef.h>
  34 #include <winbase.h>
  35 #include <shellapi.h>
  36 #include <shlobj.h>
  37 #include <shlwapi.h>
  38 #include <debughlp.h>
  39
  40 #include <wine/debug.h>
  41 #include <wine/unicode.h>
  42
  43 #include "shell32_main.h"
  44
  45 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  46
  47 extern INT WINAPI SHStringFromGUIDW(REFGUID guid, LPWSTR lpszDest, INT cchMax);  /* shlwapi.24 */
  48
  49 /**************************************************************************
  50  * Default ClassFactory types
  51  */
  52 typedef HRESULT (CALLBACK *LPFNCREATEINSTANCE)(IUnknown* pUnkOuter, REFIID riid, LPVOID* ppvObject);
  53
  54 #ifndef __REACTOS__
  55
  56 static IClassFactory * IDefClF_fnConstructor(LPFNCREATEINSTANCE lpfnCI, PLONG pcRefDll, REFIID riidInst);
  57
  58 /* this table contains all CLSIDs of shell32 objects */
  59 static const struct {
  60         REFIID                  riid;
  61         LPFNCREATEINSTANCE      lpfnCI;
  62 } InterfaceTable[] = {
  63
  64         {&CLSID_ApplicationAssociationRegistration, ApplicationAssociationRegistration_Constructor},
  65         {&CLSID_AutoComplete,   IAutoComplete_Constructor},
  66         {&CLSID_ControlPanel,   IControlPanel_Constructor},
  67         {&CLSID_DragDropHelper, IDropTargetHelper_Constructor},
  68         {&CLSID_FolderShortcut, FolderShortcut_Constructor},
  69         {&CLSID_MyComputer,     ISF_MyComputer_Constructor},
  70         {&CLSID_MyDocuments,    MyDocuments_Constructor},
  71         {&CLSID_NetworkPlaces,  ISF_NetworkPlaces_Constructor},
  72         {&CLSID_Printers,       Printers_Constructor},
  73         {&CLSID_QueryAssociations, QueryAssociations_Constructor},
  74         {&CLSID_RecycleBin,     RecycleBin_Constructor},
  75         {&CLSID_ShellDesktop,   ISF_Desktop_Constructor},
  76         {&CLSID_ShellFSFolder,  IFSFolder_Constructor},
  77         {&CLSID_ShellItem,      IShellItem_Constructor},
  78         {&CLSID_ShellLink,      IShellLink_Constructor},
  79         {&CLSID_UnixDosFolder,  UnixDosFolder_Constructor},
  80         {&CLSID_UnixFolder,     UnixFolder_Constructor},
  81         {&CLSID_ExplorerBrowser,ExplorerBrowser_Constructor},
  82         {&CLSID_KnownFolderManager, KnownFolderManager_Constructor},
  83         {&CLSID_Shell,          IShellDispatch_Constructor},
  84         {NULL, NULL}
  85 };
  86
  87 #endif /* !__REACTOS__ */
  88
  89 /*************************************************************************
  90  * SHCoCreateInstance [SHELL32.102]
  91  *
  92  * Equivalent to CoCreateInstance. Under Windows 9x this function could sometimes
  93  * use the shell32 built-in "mini-COM" without the need to load ole32.dll - see
  94  * SHLoadOLE for details.
  95  *
  96  * Under wine if a "LoadWithoutCOM" value is present or the object resides in
  97  * shell32.dll the function will load the object manually without the help of ole32
  98  *
  99  * NOTES
 100  *     exported by ordinal
 101  *
 102  * SEE ALSO
 103  *     CoCreateInstance, SHLoadOLE
 104  */
 105 HRESULT WINAPI SHCoCreateInstance(
 106         LPCWSTR aclsid,
 107         const CLSID *clsid,
 108         LPUNKNOWN pUnkOuter,
 109         REFIID refiid,
 110         LPVOID *ppv)
 111 {
 112         DWORD   hres;
 113         CLSID   iid;
 114         const   CLSID * myclsid = clsid;
 115         WCHAR   sKeyName[MAX_PATH];
 116         static const WCHAR sCLSID[] = {'C','L','S','I','D','\\','\0'};
 117         WCHAR   sClassID[60];
 118         static const WCHAR sInProcServer32[] = {'\\','I','n','p','r','o','c','S','e','r','v','e','r','3','2','\0'};
 119         static const WCHAR sLoadWithoutCOM[] = {'L','o','a','d','W','i','t','h','o','u','t','C','O','M','\0'};
 120         WCHAR   sDllPath[MAX_PATH];
 121         HKEY    hKey = 0;
 122         DWORD   dwSize;
 123         IClassFactory * pcf = NULL;
 124
 125         if(!ppv) return E_POINTER;
 126         *ppv=NULL;
 127
 128         /* if the clsid is a string, convert it */
 129         if (!clsid)
 130         {
 131           if (!aclsid) return REGDB_E_CLASSNOTREG;
 132           SHCLSIDFromStringW(aclsid, &iid);
 133           myclsid = &iid;
 134         }
 135
 136         TRACE("(%p,%s,unk:%p,%s,%p)\n",
 137                 aclsid,shdebugstr_guid(myclsid),pUnkOuter,shdebugstr_guid(refiid),ppv);
 138
 139         if (SUCCEEDED(DllGetClassObject(myclsid, &IID_IClassFactory,(LPVOID*)&pcf)))
 140         {
 141             hres = IClassFactory_CreateInstance(pcf, pUnkOuter, refiid, ppv);
 142             IClassFactory_Release(pcf);
 143             goto end;
 144         }
 145
 146         /* we look up the dll path in the registry */
 147         SHStringFromGUIDW(myclsid, sClassID, sizeof(sClassID)/sizeof(WCHAR));
 148         lstrcpyW(sKeyName, sCLSID);
 149         lstrcatW(sKeyName, sClassID);
 150         lstrcatW(sKeyName, sInProcServer32);
 151
 152         if (RegOpenKeyExW(HKEY_CLASSES_ROOT, sKeyName, 0, KEY_READ, &hKey))
 153             return E_ACCESSDENIED;
 154
 155         /* if a special registry key is set, we load a shell extension without help of OLE32 */
 156         if (!SHQueryValueExW(hKey, sLoadWithoutCOM, 0, 0, 0, 0))
 157         {
 158             /* load an external dll without ole32 */
 159             HANDLE hLibrary;
 160             typedef HRESULT (CALLBACK *DllGetClassObjectFunc)(REFCLSID clsid, REFIID iid, LPVOID *ppv);
 161             DllGetClassObjectFunc DllGetClassObject;
 162
 163             dwSize = sizeof(sDllPath);
 164             SHQueryValueExW(hKey, NULL, 0,0, sDllPath, &dwSize );
 165
 166             if ((hLibrary = LoadLibraryExW(sDllPath, 0, LOAD_WITH_ALTERED_SEARCH_PATH)) == 0) {
 167                 ERR("couldn't load InprocServer32 dll %s\n", debugstr_w(sDllPath));
 168                 hres = E_ACCESSDENIED;
 169                 goto end;
 170             } else if (!(DllGetClassObject = (DllGetClassObjectFunc)GetProcAddress(hLibrary, "DllGetClassObject"))) {
 171                 ERR("couldn't find function DllGetClassObject in %s\n", debugstr_w(sDllPath));
 172                 FreeLibrary( hLibrary );
 173                 hres = E_ACCESSDENIED;
 174                 goto end;
 175             } else if (FAILED(hres = DllGetClassObject(myclsid, &IID_IClassFactory, (LPVOID*)&pcf))) {
 176                     TRACE("GetClassObject failed 0x%08x\n", hres);
 177                     goto end;
 178             }
 179
 180             hres = IClassFactory_CreateInstance(pcf, pUnkOuter, refiid, ppv);
 181             IClassFactory_Release(pcf);
 182         } else {
 183
 184             /* load an external dll in the usual way */
 185             hres = CoCreateInstance(myclsid, pUnkOuter, CLSCTX_INPROC_SERVER, refiid, ppv);
 186         }
 187
 188 end:
 189         if (hKey) RegCloseKey(hKey);
 190         if(hres!=S_OK)
 191         {
 192           ERR("failed (0x%08x) to create CLSID:%s IID:%s\n",
 193               hres, shdebugstr_guid(myclsid), shdebugstr_guid(refiid));
 194           ERR("class not found in registry\n");
 195         }
 196
 197         TRACE("-- instance: %p\n",*ppv);
 198         return hres;
 199 }
 200
 201 #ifndef __REACTOS__
 202 /*************************************************************************
 203  * DllGetClassObject     [SHELL32.@]
 204  * SHDllGetClassObject   [SHELL32.128]
 205  */
 206 HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
 207 {
 208         HRESULT hres = E_OUTOFMEMORY;
 209         IClassFactory * pcf = NULL;
 210         int i;
 211
 212         TRACE("CLSID:%s,IID:%s\n",shdebugstr_guid(rclsid),shdebugstr_guid(iid));
 213
 214         if (!ppv) return E_INVALIDARG;
 215         *ppv = NULL;
 216
 217         /* search our internal interface table */
 218         for(i=0;InterfaceTable[i].riid;i++) {
 219             if(IsEqualIID(InterfaceTable[i].riid, rclsid)) {
 220                 TRACE("index[%u]\n", i);
 221                 pcf = IDefClF_fnConstructor(InterfaceTable[i].lpfnCI, NULL, NULL);
 222             }
 223         }
 224
 225         if (!pcf) {
 226             FIXME("failed for CLSID=%s\n", shdebugstr_guid(rclsid));
 227             return CLASS_E_CLASSNOTAVAILABLE;
 228         }
 229
 230         hres = IClassFactory_QueryInterface(pcf, iid, ppv);
 231         IClassFactory_Release(pcf);
 232
 233         TRACE("-- pointer to class factory: %p\n",*ppv);
 234         return hres;
 235 }
 236 #endif
 237
 238 /*************************************************************************
 239  * SHCLSIDFromString                            [SHELL32.147]
 240  *
 241  * Under Windows 9x this was an ANSI version of CLSIDFromString. It also allowed
 242  * to avoid dependency on ole32.dll (see SHLoadOLE for details).
 243  *
 244  * Under Windows NT/2000/XP this is equivalent to CLSIDFromString
 245  *
 246  * NOTES
 247  *     exported by ordinal
 248  *
 249  * SEE ALSO
 250  *     CLSIDFromString, SHLoadOLE
 251  */
 252 DWORD WINAPI SHCLSIDFromStringA (LPCSTR clsid, CLSID *id)
 253 {
 254     WCHAR buffer[40];
 255     TRACE("(%p(%s) %p)\n", clsid, clsid, id);
 256     if (!MultiByteToWideChar( CP_ACP, 0, clsid, -1, buffer, sizeof(buffer)/sizeof(WCHAR) ))
 257         return CO_E_CLASSSTRING;
 258     return CLSIDFromString( buffer, id );
 259 }
 260 DWORD WINAPI SHCLSIDFromStringW (LPCWSTR clsid, CLSID *id)
 261 {
 262         TRACE("(%p(%s) %p)\n", clsid, debugstr_w(clsid), id);
 263         return CLSIDFromString(clsid, id);
 264 }
 265 DWORD WINAPI SHCLSIDFromStringAW (LPCVOID clsid, CLSID *id)
 266 {
 267         if (SHELL_OsIsUnicode())
 268           return SHCLSIDFromStringW (clsid, id);
 269         return SHCLSIDFromStringA (clsid, id);
 270 }
 271
 272 /*************************************************************************
 273  *                       SHGetMalloc                    [SHELL32.@]
 274  *
 275  * Equivalent to CoGetMalloc(MEMCTX_TASK, ...). Under Windows 9x this function
 276  * could use the shell32 built-in "mini-COM" without the need to load ole32.dll -
 277  * see SHLoadOLE for details.
 278  *
 279  * PARAMS
 280  *  lpmal [O] Destination for IMalloc interface.
 281  *
 282  * RETURNS
 283  *  Success: S_OK. lpmal contains the shells IMalloc interface.
 284  *  Failure. An HRESULT error code.
 285  *
 286  * SEE ALSO
 287  *  CoGetMalloc, SHLoadOLE
 288  */
 289 HRESULT WINAPI SHGetMalloc(LPMALLOC *lpmal)
 290 {
 291         TRACE("(%p)\n", lpmal);
 292         return CoGetMalloc(MEMCTX_TASK, lpmal);
 293 }
 294
 295 /*************************************************************************
 296  * SHAlloc                                      [SHELL32.196]
 297  *
 298  * Equivalent to CoTaskMemAlloc. Under Windows 9x this function could use
 299  * the shell32 built-in "mini-COM" without the need to load ole32.dll -
 300  * see SHLoadOLE for details.
 301  *
 302  * NOTES
 303  *     exported by ordinal
 304  *
 305  * SEE ALSO
 306  *     CoTaskMemAlloc, SHLoadOLE
 307  */
 308 LPVOID WINAPI SHAlloc(SIZE_T len)
 309 {
 310         LPVOID ret;
 311
 312         ret = CoTaskMemAlloc(len);
 313         TRACE("%u bytes at %p\n",len, ret);
 314         return ret;
 315 }
 316
 317 /*************************************************************************
 318  * SHFree                                       [SHELL32.195]
 319  *
 320  * Equivalent to CoTaskMemFree. Under Windows 9x this function could use
 321  * the shell32 built-in "mini-COM" without the need to load ole32.dll -
 322  * see SHLoadOLE for details.
 323  *
 324  * NOTES
 325  *     exported by ordinal
 326  *
 327  * SEE ALSO
 328  *     CoTaskMemFree, SHLoadOLE
 329  */
 330 void WINAPI SHFree(LPVOID pv)
 331 {
 332         TRACE("%p\n",pv);
 333         CoTaskMemFree(pv);
 334 }
 335
 336 #ifndef __REACTOS__
 337 /*************************************************************************
 338  * SHGetDesktopFolder                   [SHELL32.@]
 339  */
 340 HRESULT WINAPI SHGetDesktopFolder(IShellFolder **psf)
 341 {
 342         HRESULT hres;
 343
 344         TRACE("(%p)\n", psf);
 345
 346         if(!psf) return E_INVALIDARG;
 347
 348         *psf = NULL;
 349         hres = ISF_Desktop_Constructor(NULL, &IID_IShellFolder, (LPVOID*)psf);
 350
 351         TRACE("-- %p->(%p) 0x%08x\n", psf, *psf, hres);
 352         return hres;
 353 }
 354 #endif
 355
 356 /**************************************************************************
 357  * Default ClassFactory Implementation
 358  *
 359  * SHCreateDefClassObject
 360  *
 361  * NOTES
 362  *  Helper function for dlls without their own classfactory.
 363  *  A generic classfactory is returned.
 364  *  When the CreateInstance of the cf is called the callback is executed.
 365  */
 366
 367 typedef struct
 368 {
 369     IClassFactory               IClassFactory_iface;
 370     LONG                        ref;
 371     CLSID                       *rclsid;
 372     LPFNCREATEINSTANCE          lpfnCI;
 373     const IID *                 riidInst;
 374     LONG *                      pcRefDll; /* pointer to refcounter in external dll (ugrrr...) */
 375 } IDefClFImpl;
 376
 377 static inline IDefClFImpl *impl_from_IClassFactory(IClassFactory *iface)
 378 {
 379         return CONTAINING_RECORD(iface, IDefClFImpl, IClassFactory_iface);
 380 }
 381
 382 #ifndef __REACTOS__
 383
 384 static const IClassFactoryVtbl dclfvt;
 385
 386 /**************************************************************************
 387  *  IDefClF_fnConstructor
 388  */
 389
 390 static IClassFactory * IDefClF_fnConstructor(LPFNCREATEINSTANCE lpfnCI, PLONG pcRefDll, REFIID riidInst)
 391 {
 392         IDefClFImpl* lpclf;
 393
 394         lpclf = HeapAlloc(GetProcessHeap(),0,sizeof(IDefClFImpl));
 395         lpclf->ref = 1;
 396         lpclf->IClassFactory_iface.lpVtbl = &dclfvt;
 397         lpclf->lpfnCI = lpfnCI;
 398         lpclf->pcRefDll = pcRefDll;
 399
 400         if (pcRefDll) InterlockedIncrement(pcRefDll);
 401         lpclf->riidInst = riidInst;
 402
 403         TRACE("(%p)%s\n",lpclf, shdebugstr_guid(riidInst));
 404         return (LPCLASSFACTORY)lpclf;
 405 }
 406 /**************************************************************************
 407  *  IDefClF_fnQueryInterface
 408  */
 409 static HRESULT WINAPI IDefClF_fnQueryInterface(
 410   LPCLASSFACTORY iface, REFIID riid, LPVOID *ppvObj)
 411 {
 412         IDefClFImpl *This = impl_from_IClassFactory(iface);
 413
 414         TRACE("(%p)->(%s)\n",This,shdebugstr_guid(riid));
 415
 416         *ppvObj = NULL;
 417
 418         if(IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IClassFactory)) {
 419           *ppvObj = This;
 420           InterlockedIncrement(&This->ref);
 421           return S_OK;
 422         }
 423
 424         TRACE("-- E_NOINTERFACE\n");
 425         return E_NOINTERFACE;
 426 }
 427 /******************************************************************************
 428  * IDefClF_fnAddRef
 429  */
 430 static ULONG WINAPI IDefClF_fnAddRef(LPCLASSFACTORY iface)
 431 {
 432         IDefClFImpl *This = impl_from_IClassFactory(iface);
 433         ULONG refCount = InterlockedIncrement(&This->ref);
 434
 435         TRACE("(%p)->(count=%u)\n", This, refCount - 1);
 436
 437         return refCount;
 438 }
 439 /******************************************************************************
 440  * IDefClF_fnRelease
 441  */
 442 static ULONG WINAPI IDefClF_fnRelease(LPCLASSFACTORY iface)
 443 {
 444         IDefClFImpl *This = impl_from_IClassFactory(iface);
 445         ULONG refCount = InterlockedDecrement(&This->ref);
 446
 447         TRACE("(%p)->(count=%u)\n", This, refCount + 1);
 448
 449         if (!refCount)
 450         {
 451           if (This->pcRefDll) InterlockedDecrement(This->pcRefDll);
 452
 453           TRACE("-- destroying IClassFactory(%p)\n",This);
 454           HeapFree(GetProcessHeap(),0,This);
 455           return 0;
 456         }
 457         return refCount;
 458 }
 459 /******************************************************************************
 460  * IDefClF_fnCreateInstance
 461  */
 462 static HRESULT WINAPI IDefClF_fnCreateInstance(
 463   LPCLASSFACTORY iface, LPUNKNOWN pUnkOuter, REFIID riid, LPVOID *ppvObject)
 464 {
 465         IDefClFImpl *This = impl_from_IClassFactory(iface);
 466
 467         TRACE("%p->(%p,%s,%p)\n",This,pUnkOuter,shdebugstr_guid(riid),ppvObject);
 468
 469         *ppvObject = NULL;
 470
 471         if ( This->riidInst==NULL ||
 472              IsEqualCLSID(riid, This->riidInst) ||
 473              IsEqualCLSID(riid, &IID_IUnknown) )
 474         {
 475           return This->lpfnCI(pUnkOuter, riid, ppvObject);
 476         }
 477
 478         ERR("unknown IID requested %s\n",shdebugstr_guid(riid));
 479         return E_NOINTERFACE;
 480 }
 481 /******************************************************************************
 482  * IDefClF_fnLockServer
 483  */
 484 static HRESULT WINAPI IDefClF_fnLockServer(LPCLASSFACTORY iface, BOOL fLock)
 485 {
 486         IDefClFImpl *This = impl_from_IClassFactory(iface);
 487         TRACE("%p->(0x%x), not implemented\n",This, fLock);
 488         return E_NOTIMPL;
 489 }
 490
 491 static const IClassFactoryVtbl dclfvt =
 492 {
 493     IDefClF_fnQueryInterface,
 494     IDefClF_fnAddRef,
 495   IDefClF_fnRelease,
 496   IDefClF_fnCreateInstance,
 497   IDefClF_fnLockServer
 498 };
 499
 500 /******************************************************************************
 501  * SHCreateDefClassObject                       [SHELL32.70]
 502  */
 503 HRESULT WINAPI SHCreateDefClassObject(
 504         REFIID  riid,
 505         LPVOID* ppv,
 506         LPFNCREATEINSTANCE lpfnCI,      /* [in] create instance callback entry */
 507         LPDWORD pcRefDll,               /* [in/out] ref count of the dll */
 508         REFIID  riidInst)               /* [in] optional interface to the instance */
 509 {
 510         IClassFactory * pcf;
 511
 512         TRACE("%s %p %p %p %s\n",
 513               shdebugstr_guid(riid), ppv, lpfnCI, pcRefDll, shdebugstr_guid(riidInst));
 514
 515         if (! IsEqualCLSID(riid, &IID_IClassFactory) ) return E_NOINTERFACE;
 516         if (! (pcf = IDefClF_fnConstructor(lpfnCI, (PLONG)pcRefDll, riidInst))) return E_OUTOFMEMORY;
 517         *ppv = pcf;
 518         return S_OK;
 519 }
 520
 521 #endif /* !__REACTOS__ */
 522
 523 /*************************************************************************
 524  *  DragAcceptFiles             [SHELL32.@]
 525  */
 526 void WINAPI DragAcceptFiles(HWND hWnd, BOOL b)
 527 {
 528         LONG exstyle;
 529
 530         if( !IsWindow(hWnd) ) return;
 531         exstyle = GetWindowLongPtrA(hWnd,GWL_EXSTYLE);
 532         if (b)
 533           exstyle |= WS_EX_ACCEPTFILES;
 534         else
 535           exstyle &= ~WS_EX_ACCEPTFILES;
 536         SetWindowLongPtrA(hWnd,GWL_EXSTYLE,exstyle);
 537 }
 538
 539 /*************************************************************************
 540  * DragFinish           [SHELL32.@]
 541  */
 542 void WINAPI DragFinish(HDROP h)
 543 {
 544         TRACE("\n");
 545         GlobalFree(h);
 546 }
 547
 548 /*************************************************************************
 549  * DragQueryPoint               [SHELL32.@]
 550  */
 551 BOOL WINAPI DragQueryPoint(HDROP hDrop, POINT *p)
 552 {
 553         DROPFILES *lpDropFileStruct;
 554         BOOL bRet;
 555
 556         TRACE("\n");
 557
 558         lpDropFileStruct = GlobalLock(hDrop);
 559
 560         *p = lpDropFileStruct->pt;
 561         bRet = lpDropFileStruct->fNC;
 562
 563         GlobalUnlock(hDrop);
 564         return bRet;
 565 }
 566
 567 /*************************************************************************
 568  *  DragQueryFileA              [SHELL32.@]
 569  *  DragQueryFile               [SHELL32.@]
 570  */
 571 UINT WINAPI DragQueryFileA(
 572         HDROP hDrop,
 573         UINT lFile,
 574         LPSTR lpszFile,
 575         UINT lLength)
 576 {
 577         LPSTR lpDrop;
 578         UINT i = 0;
 579         DROPFILES *lpDropFileStruct = GlobalLock(hDrop);
 580
 581         TRACE("(%p, %x, %p, %u)\n",     hDrop,lFile,lpszFile,lLength);
 582
 583         if(!lpDropFileStruct) goto end;
 584
 585         lpDrop = (LPSTR) lpDropFileStruct + lpDropFileStruct->pFiles;
 586
 587         if(lpDropFileStruct->fWide) {
 588             LPWSTR lpszFileW = NULL;
 589
 590             if(lpszFile) {
 591                 lpszFileW = HeapAlloc(GetProcessHeap(), 0, lLength*sizeof(WCHAR));
 592                 if(lpszFileW == NULL) {
 593                     goto end;
 594                 }
 595             }
 596             i = DragQueryFileW(hDrop, lFile, lpszFileW, lLength);
 597
 598             if(lpszFileW) {
 599                 WideCharToMultiByte(CP_ACP, 0, lpszFileW, -1, lpszFile, lLength, 0, NULL);
 600                 HeapFree(GetProcessHeap(), 0, lpszFileW);
 601             }
 602             goto end;
 603         }
 604
 605         while (i++ < lFile)
 606         {
 607           while (*lpDrop++); /* skip filename */
 608           if (!*lpDrop)
 609           {
 610             i = (lFile == 0xFFFFFFFF) ? i : 0;
 611             goto end;
 612           }
 613         }
 614
 615         i = strlen(lpDrop);
 616         if (!lpszFile ) goto end;   /* needed buffer size */
 617         lstrcpynA (lpszFile, lpDrop, lLength);
 618 end:
 619         GlobalUnlock(hDrop);
 620         return i;
 621 }
 622
 623 /*************************************************************************
 624  *  DragQueryFileW              [SHELL32.@]
 625  */
 626 UINT WINAPI DragQueryFileW(
 627         HDROP hDrop,
 628         UINT lFile,
 629         LPWSTR lpszwFile,
 630         UINT lLength)
 631 {
 632         LPWSTR lpwDrop;
 633         UINT i = 0;
 634         DROPFILES *lpDropFileStruct = GlobalLock(hDrop);
 635
 636         TRACE("(%p, %x, %p, %u)\n", hDrop,lFile,lpszwFile,lLength);
 637
 638         if(!lpDropFileStruct) goto end;
 639
 640         lpwDrop = (LPWSTR) ((LPSTR)lpDropFileStruct + lpDropFileStruct->pFiles);
 641
 642         if(lpDropFileStruct->fWide == FALSE) {
 643             LPSTR lpszFileA = NULL;
 644
 645             if(lpszwFile) {
 646                 lpszFileA = HeapAlloc(GetProcessHeap(), 0, lLength);
 647                 if(lpszFileA == NULL) {
 648                     goto end;
 649                 }
 650             }
 651             i = DragQueryFileA(hDrop, lFile, lpszFileA, lLength);
 652
 653             if(lpszFileA) {
 654                 MultiByteToWideChar(CP_ACP, 0, lpszFileA, -1, lpszwFile, lLength);
 655                 HeapFree(GetProcessHeap(), 0, lpszFileA);
 656             }
 657             goto end;
 658         }
 659
 660         i = 0;
 661         while (i++ < lFile)
 662         {
 663           while (*lpwDrop++); /* skip filename */
 664           if (!*lpwDrop)
 665           {
 666             i = (lFile == 0xFFFFFFFF) ? i : 0;
 667             goto end;
 668           }
 669         }
 670
 671         i = strlenW(lpwDrop);
 672         if ( !lpszwFile) goto end;   /* needed buffer size */
 673         lstrcpynW (lpszwFile, lpwDrop, lLength);
 674 end:
 675         GlobalUnlock(hDrop);
 676         return i;
 677 }
 678
 679 /*************************************************************************
 680  *  SHPropStgCreate             [SHELL32.685]
 681  */
 682 HRESULT WINAPI SHPropStgCreate(IPropertySetStorage *psstg, REFFMTID fmtid,
 683         const CLSID *pclsid, DWORD grfFlags, DWORD grfMode,
 684         DWORD dwDisposition, IPropertyStorage **ppstg, UINT *puCodePage)
 685 {
 686     PROPSPEC prop;
 687     PROPVARIANT ret;
 688     HRESULT hres;
 689
 690     TRACE("%p %s %s %x %x %x %p %p\n", psstg, debugstr_guid(fmtid), debugstr_guid(pclsid),
 691             grfFlags, grfMode, dwDisposition, ppstg, puCodePage);
 692
 693     hres = IPropertySetStorage_Open(psstg, fmtid, grfMode, ppstg);
 694
 695     switch(dwDisposition) {
 696     case CREATE_ALWAYS:
 697         if(SUCCEEDED(hres)) {
 698             IPropertyStorage_Release(*ppstg);
 699             hres = IPropertySetStorage_Delete(psstg, fmtid);
 700             if(FAILED(hres))
 701                 return hres;
 702             hres = E_FAIL;
 703         }
 704
 705     case OPEN_ALWAYS:
 706     case CREATE_NEW:
 707         if(FAILED(hres))
 708             hres = IPropertySetStorage_Create(psstg, fmtid, pclsid,
 709                     grfFlags, grfMode, ppstg);
 710
 711     case OPEN_EXISTING:
 712         if(FAILED(hres))
 713             return hres;
 714
 715         if(puCodePage) {
 716             prop.ulKind = PRSPEC_PROPID;
 717             prop.u.propid = PID_CODEPAGE;
 718             hres = IPropertyStorage_ReadMultiple(*ppstg, 1, &prop, &ret);
 719             if(FAILED(hres) || ret.vt!=VT_I2)
 720                 *puCodePage = 0;
 721             else
 722                 *puCodePage = ret.u.iVal;
 723         }
 724     }
 725
 726     return S_OK;
 727 }
 728
 729 /*************************************************************************
 730  *  SHPropStgReadMultiple       [SHELL32.688]
 731  */
 732 HRESULT WINAPI SHPropStgReadMultiple(IPropertyStorage *pps, UINT uCodePage,
 733         ULONG cpspec, const PROPSPEC *rgpspec, PROPVARIANT *rgvar)
 734 {
 735     STATPROPSETSTG stat;
 736     HRESULT hres;
 737
 738     FIXME("%p %u %u %p %p\n", pps, uCodePage, cpspec, rgpspec, rgvar);
 739
 740     memset(rgvar, 0, cpspec*sizeof(PROPVARIANT));
 741     hres = IPropertyStorage_ReadMultiple(pps, cpspec, rgpspec, rgvar);
 742     if(FAILED(hres))
 743         return hres;
 744
 745     if(!uCodePage) {
 746         PROPSPEC prop;
 747         PROPVARIANT ret;
 748
 749         prop.ulKind = PRSPEC_PROPID;
 750         prop.u.propid = PID_CODEPAGE;
 751         hres = IPropertyStorage_ReadMultiple(pps, 1, &prop, &ret);
 752         if(FAILED(hres) || ret.vt!=VT_I2)
 753             return S_OK;
 754
 755         uCodePage = ret.u.iVal;
 756     }
 757
 758     hres = IPropertyStorage_Stat(pps, &stat);
 759     if(FAILED(hres))
 760         return S_OK;
 761
 762     /* TODO: do something with codepage and stat */
 763     return S_OK;
 764 }
 765
 766 /*************************************************************************
 767  *  SHPropStgWriteMultiple      [SHELL32.689]
 768  */
 769 HRESULT WINAPI SHPropStgWriteMultiple(IPropertyStorage *pps, UINT *uCodePage,
 770         ULONG cpspec, const PROPSPEC *rgpspec, PROPVARIANT *rgvar, PROPID propidNameFirst)
 771 {
 772     STATPROPSETSTG stat;
 773     UINT codepage;
 774     HRESULT hres;
 775
 776     FIXME("%p %p %u %p %p %d\n", pps, uCodePage, cpspec, rgpspec, rgvar, propidNameFirst);
 777
 778     hres = IPropertyStorage_Stat(pps, &stat);
 779     if(FAILED(hres))
 780         return hres;
 781
 782     if(uCodePage && *uCodePage)
 783         codepage = *uCodePage;
 784     else {
 785         PROPSPEC prop;
 786         PROPVARIANT ret;
 787
 788         prop.ulKind = PRSPEC_PROPID;
 789         prop.u.propid = PID_CODEPAGE;
 790         hres = IPropertyStorage_ReadMultiple(pps, 1, &prop, &ret);
 791         if(FAILED(hres))
 792             return hres;
 793         if(ret.vt!=VT_I2 || !ret.u.iVal)
 794             return E_FAIL;
 795
 796         codepage = ret.u.iVal;
 797         if(uCodePage)
 798             *uCodePage = codepage;
 799     }
 800
 801     /* TODO: do something with codepage and stat */
 802
 803     hres = IPropertyStorage_WriteMultiple(pps, cpspec, rgpspec, rgvar, propidNameFirst);
 804     return hres;
 805 }
 806
 807 /*************************************************************************
 808  *  SHCreateQueryCancelAutoPlayMoniker [SHELL32.@]
 809  */
 810 HRESULT WINAPI SHCreateQueryCancelAutoPlayMoniker(IMoniker **moniker)
 811 {
 812     TRACE("%p\n", moniker);
 813
 814     if (!moniker) return E_INVALIDARG;
 815     return CreateClassMoniker(&CLSID_QueryCancelAutoPlay, moniker);
 816 }