2 * handling of SHELL32.DLL OLE-Objects
4 * Copyright 1997 Marcus Meissner
5 * Copyright 1998 Juergen Schmied <juergen.schmied@metronet.de>
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.
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.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
40 #include "undocshell.h"
41 #include "wine/unicode.h"
42 #include "shell32_main.h"
44 #include "wine/debug.h"
48 WINE_DEFAULT_DEBUG_CHANNEL(shell
);
50 extern HRESULT WINAPI
IFSFolder_Constructor(IUnknown
* pUnkOuter
, REFIID riid
, LPVOID
* ppv
);
52 const WCHAR sShell32
[12] = {'S','H','E','L','L','3','2','.','D','L','L','\0'};
53 const WCHAR sOLE32
[10] = {'O','L','E','3','2','.','D','L','L','\0'};
55 HINSTANCE hShellOle32
= 0;
56 /**************************************************************************
57 * Default ClassFactory types
59 typedef HRESULT (CALLBACK
*LPFNCREATEINSTANCE
)(IUnknown
* pUnkOuter
, REFIID riid
, LPVOID
* ppvObject
);
60 IClassFactory
* IDefClF_fnConstructor(LPFNCREATEINSTANCE lpfnCI
, PLONG pcRefDll
, REFIID riidInst
);
62 /* this table contains all CLSID's of shell32 objects */
65 LPFNCREATEINSTANCE lpfnCI
;
66 } InterfaceTable
[] = {
67 {&CLSID_ShellFSFolder
, &IFSFolder_Constructor
},
68 {&CLSID_MyComputer
, &ISF_MyComputer_Constructor
},
69 {&CLSID_ShellDesktop
, &ISF_Desktop_Constructor
},
70 {&CLSID_ShellLink
, &IShellLink_Constructor
},
71 {&CLSID_DragDropHelper
, &IDropTargetHelper_Constructor
},
72 {&CLSID_ControlPanel
, &IControlPanel_Constructor
},
73 {&CLSID_AutoComplete
, &IAutoComplete_Constructor
},
74 {&CLSID_UnixFolder
, &UnixFolder_Constructor
},
75 {&CLSID_UnixDosFolder
, &UnixDosFolder_Constructor
},
76 {&CLSID_FolderShortcut
, &FolderShortcut_Constructor
},
77 {&CLSID_MyDocuments
, &MyDocuments_Constructor
},
81 /*************************************************************************
82 * SHCoCreateInstance [SHELL32.102]
88 /* FIXME: this should be SHLWAPI.24 since we can't yet import by ordinal */
90 DWORD WINAPI
__SHGUIDToStringW (REFGUID guid
, LPWSTR str
)
92 WCHAR sFormat
[52] = {'{','%','0','8','l','x','-','%','0','4',
93 'x','-','%','0','4','x','-','%','0','2',
94 'x','%','0','2','x','-','%','0','2','x',
95 '%','0','2','x','%','0','2','x','%','0',
96 '2','x','%','0','2','x','%','0','2','x',
99 return wsprintfW ( str
, sFormat
,
100 guid
->Data1
, guid
->Data2
, guid
->Data3
,
101 guid
->Data4
[0], guid
->Data4
[1], guid
->Data4
[2], guid
->Data4
[3],
102 guid
->Data4
[4], guid
->Data4
[5], guid
->Data4
[6], guid
->Data4
[7] );
106 /************************************************************************/
108 HRESULT WINAPI
SHCoCreateInstance(
117 CLSID
* myclsid
= (CLSID
*)clsid
;
118 WCHAR sKeyName
[MAX_PATH
];
119 const WCHAR sCLSID
[7] = {'C','L','S','I','D','\\','\0'};
121 const WCHAR sInProcServer32
[16] ={'\\','I','n','p','r','o','c','S','e','r','v','e','r','3','2','\0'};
122 const WCHAR sLoadWithoutCOM
[15] ={'L','o','a','d','W','i','t','h','o','u','t','C','O','M','\0'};
123 WCHAR sDllPath
[MAX_PATH
];
126 BOOLEAN bLoadFromShell32
= FALSE
;
127 BOOLEAN bLoadWithoutCOM
= FALSE
;
128 IClassFactory
* pcf
= NULL
;
130 if(!ppv
) return E_POINTER
;
133 /* if the clsid is a string, convert it */
136 if (!aclsid
) return REGDB_E_CLASSNOTREG
;
137 SHCLSIDFromStringW(aclsid
, &iid
);
141 TRACE("(%p,%s,unk:%p,%s,%p)\n",
142 aclsid
,shdebugstr_guid(myclsid
),pUnkOuter
,shdebugstr_guid(refiid
),ppv
);
144 /* we look up the dll path in the registry */
145 __SHGUIDToStringW(myclsid
, sClassID
);
146 lstrcpyW(sKeyName
, sCLSID
);
147 lstrcatW(sKeyName
, sClassID
);
148 lstrcatW(sKeyName
, sInProcServer32
);
150 if (ERROR_SUCCESS
== RegOpenKeyExW(HKEY_CLASSES_ROOT
, sKeyName
, 0, KEY_READ
, &hKey
)) {
151 dwSize
= sizeof(sDllPath
);
152 SHQueryValueExW(hKey
, NULL
, 0,0, sDllPath
, &dwSize
);
154 /* if a special registry key is set, we load a shell extension without help of OLE32 */
155 bLoadWithoutCOM
= (ERROR_SUCCESS
== SHQueryValueExW(hKey
, sLoadWithoutCOM
, 0, 0, 0, 0));
157 /* if the com object is inside shell32, omit use of ole32 */
158 bLoadFromShell32
= (0==lstrcmpiW( PathFindFileNameW(sDllPath
), sShell32
));
162 /* since we can't find it in the registry we try internally */
163 bLoadFromShell32
= TRUE
;
166 TRACE("WithoutCom=%u FromShell=%u\n", bLoadWithoutCOM
, bLoadFromShell32
);
168 /* now we create an instance */
169 if (bLoadFromShell32
) {
170 if (! SUCCEEDED(DllGetClassObject(myclsid
, &IID_IClassFactory
,(LPVOID
*)&pcf
))) {
171 ERR("LoadFromShell failed for CLSID=%s\n", shdebugstr_guid(myclsid
));
173 } else if (bLoadWithoutCOM
) {
175 /* load an external dll without ole32 */
177 typedef HRESULT (CALLBACK
*DllGetClassObjectFunc
)(REFCLSID clsid
, REFIID iid
, LPVOID
*ppv
);
178 DllGetClassObjectFunc DllGetClassObject
;
180 if ((hLibrary
= LoadLibraryExW(sDllPath
, 0, LOAD_WITH_ALTERED_SEARCH_PATH
)) == 0) {
181 ERR("couldn't load InprocServer32 dll %s\n", debugstr_w(sDllPath
));
182 hres
= E_ACCESSDENIED
;
184 } else if (!(DllGetClassObject
= (DllGetClassObjectFunc
)GetProcAddress(hLibrary
, "DllGetClassObject"))) {
185 ERR("couldn't find function DllGetClassObject in %s\n", debugstr_w(sDllPath
));
186 FreeLibrary( hLibrary
);
187 hres
= E_ACCESSDENIED
;
189 } else if (! SUCCEEDED(hres
= DllGetClassObject(myclsid
, &IID_IClassFactory
, (LPVOID
*)&pcf
))) {
190 TRACE("GetClassObject failed 0x%08lx\n", hres
);
196 /* load an external dll in the usual way */
197 hres
= CoCreateInstance(myclsid
, pUnkOuter
, CLSCTX_INPROC_SERVER
, refiid
, ppv
);
201 /* here we should have a ClassFactory */
202 if (!pcf
) return E_ACCESSDENIED
;
204 hres
= IClassFactory_CreateInstance(pcf
, pUnkOuter
, refiid
, ppv
);
205 IClassFactory_Release(pcf
);
209 ERR("failed (0x%08lx) to create CLSID:%s IID:%s\n",
210 hres
, shdebugstr_guid(myclsid
), shdebugstr_guid(refiid
));
211 ERR("class not found in registry\n");
214 TRACE("-- instance: %p\n",*ppv
);
218 /*************************************************************************
219 * DllGetClassObject [SHELL32.@]
220 * SHDllGetClassObject [SHELL32.128]
222 HRESULT WINAPI
DllGetClassObject(REFCLSID rclsid
, REFIID iid
, LPVOID
*ppv
)
224 HRESULT hres
= E_OUTOFMEMORY
;
225 IClassFactory
* pcf
= NULL
;
228 TRACE("CLSID:%s,IID:%s\n",shdebugstr_guid(rclsid
),shdebugstr_guid(iid
));
230 if (!ppv
) return E_INVALIDARG
;
233 /* search our internal interface table */
234 for(i
=0;InterfaceTable
[i
].riid
;i
++) {
235 if(IsEqualIID(InterfaceTable
[i
].riid
, rclsid
)) {
236 TRACE("index[%u]\n", i
);
237 pcf
= IDefClF_fnConstructor(InterfaceTable
[i
].lpfnCI
, NULL
, NULL
);
242 FIXME("failed for CLSID=%s\n", shdebugstr_guid(rclsid
));
243 return CLASS_E_CLASSNOTAVAILABLE
;
246 hres
= IClassFactory_QueryInterface(pcf
, iid
, ppv
);
247 IClassFactory_Release(pcf
);
249 TRACE("-- pointer to class factory: %p\n",*ppv
);
253 /*************************************************************************
254 * SHCLSIDFromString [SHELL32.147]
257 * exported by ordinal
259 DWORD WINAPI
SHCLSIDFromStringA (LPCSTR clsid
, CLSID
*id
)
262 TRACE("(%p(%s) %p)\n", clsid
, clsid
, id
);
263 if (!MultiByteToWideChar( CP_ACP
, 0, clsid
, -1, buffer
, sizeof(buffer
)/sizeof(WCHAR
) ))
264 return CO_E_CLASSSTRING
;
265 return CLSIDFromString( buffer
, id
);
267 DWORD WINAPI
SHCLSIDFromStringW (LPCWSTR clsid
, CLSID
*id
)
269 TRACE("(%p(%s) %p)\n", clsid
, debugstr_w(clsid
), id
);
270 return CLSIDFromString((LPWSTR
)clsid
, id
);
272 DWORD WINAPI
SHCLSIDFromStringAW (LPVOID clsid
, CLSID
*id
)
274 if (SHELL_OsIsUnicode())
275 return SHCLSIDFromStringW (clsid
, id
);
276 return SHCLSIDFromStringA (clsid
, id
);
279 /*************************************************************************
280 * Shell Memory Allocator
283 /* set the vtable later */
284 static const IMallocVtbl VT_Shell_IMalloc32
;
286 /* this is the static object instance */
288 const IMallocVtbl
*lpVtbl
;
292 static _ShellMalloc Shell_Malloc
= { &VT_Shell_IMalloc32
,1};
294 /* this is the global allocator of shell32 */
295 static IMalloc
* ShellTaskAllocator
= NULL
;
297 /******************************************************************************
298 * IShellMalloc_QueryInterface [VTABLE]
300 static HRESULT WINAPI
IShellMalloc_fnQueryInterface(LPMALLOC iface
, REFIID refiid
, LPVOID
*obj
)
302 TRACE("(%s,%p)\n",shdebugstr_guid(refiid
),obj
);
303 if (IsEqualIID(refiid
, &IID_IUnknown
) || IsEqualIID(refiid
, &IID_IMalloc
)) {
304 *obj
= (LPMALLOC
) &Shell_Malloc
;
307 return E_NOINTERFACE
;
310 /******************************************************************************
311 * IShellMalloc_AddRefRelease [VTABLE]
313 static ULONG WINAPI
IShellMalloc_fnAddRefRelease(LPMALLOC iface
)
318 /******************************************************************************
319 * IShellMalloc_Alloc [VTABLE]
321 static LPVOID WINAPI
IShellMalloc_fnAlloc(LPMALLOC iface
, DWORD cb
)
325 addr
= (LPVOID
) LocalAlloc(LMEM_ZEROINIT
, cb
);
326 TRACE("(%p,%ld);\n",addr
,cb
);
330 /******************************************************************************
331 * IShellMalloc_Realloc [VTABLE]
333 static LPVOID WINAPI
IShellMalloc_fnRealloc(LPMALLOC iface
, LPVOID pv
, DWORD cb
)
339 addr
= (LPVOID
) LocalReAlloc((HANDLE
) pv
, cb
, LMEM_ZEROINIT
| LMEM_MOVEABLE
);
341 LocalFree((HANDLE
) pv
);
346 addr
= (LPVOID
) LocalAlloc(LMEM_ZEROINIT
, cb
);
352 TRACE("(%p->%p,%ld)\n",pv
,addr
,cb
);
356 /******************************************************************************
357 * IShellMalloc_Free [VTABLE]
359 static VOID WINAPI
IShellMalloc_fnFree(LPMALLOC iface
, LPVOID pv
)
362 LocalFree((HANDLE
) pv
);
365 /******************************************************************************
366 * IShellMalloc_GetSize [VTABLE]
368 static DWORD WINAPI
IShellMalloc_fnGetSize(LPMALLOC iface
, LPVOID pv
)
370 DWORD cb
= (DWORD
) LocalSize((HANDLE
)pv
);
371 TRACE("(%p,%ld)\n", pv
, cb
);
375 /******************************************************************************
376 * IShellMalloc_DidAlloc [VTABLE]
378 static INT WINAPI
IShellMalloc_fnDidAlloc(LPMALLOC iface
, LPVOID pv
)
384 /******************************************************************************
385 * IShellMalloc_HeapMinimize [VTABLE]
387 static VOID WINAPI
IShellMalloc_fnHeapMinimize(LPMALLOC iface
)
392 static const IMallocVtbl VT_Shell_IMalloc32
=
394 IShellMalloc_fnQueryInterface
,
395 IShellMalloc_fnAddRefRelease
,
396 IShellMalloc_fnAddRefRelease
,
397 IShellMalloc_fnAlloc
,
398 IShellMalloc_fnRealloc
,
400 IShellMalloc_fnGetSize
,
401 IShellMalloc_fnDidAlloc
,
402 IShellMalloc_fnHeapMinimize
405 /*************************************************************************
406 * SHGetMalloc [SHELL32.@]
408 * Return the shell IMalloc interface.
411 * lpmal [O] Destination for IMalloc interface.
414 * Success: S_OK. lpmal contains the shells IMalloc interface.
415 * Failure. An HRESULT error code.
418 * This function will use CoGetMalloc() if OLE32.DLL is already loaded.
419 * If not it uses an internal implementation as a fallback.
421 HRESULT WINAPI
SHGetMalloc(LPMALLOC
*lpmal
)
423 TRACE("(%p)\n", lpmal
);
425 if (!ShellTaskAllocator
)
427 HMODULE hOle32
= GetModuleHandleA("OLE32.DLL");
428 /* this is very suspect. we should not being using a different
429 * allocator from deallocator based on something undeterministic
430 * like whether ole32 is loaded. as it happens currently, they
431 * both map to the same allocator deep down, but this could
432 * change in the future. */
434 CoGetMalloc(MEMCTX_TASK
, &ShellTaskAllocator
);
435 TRACE("got ole32 IMalloc\n");
437 if(!ShellTaskAllocator
) {
438 ShellTaskAllocator
= (IMalloc
* ) &Shell_Malloc
;
439 TRACE("use fallback allocator\n");
442 *lpmal
= ShellTaskAllocator
;
446 /*************************************************************************
447 * SHAlloc [SHELL32.196]
450 * exported by ordinal
452 LPVOID WINAPI
SHAlloc(DWORD len
)
457 if (!ShellTaskAllocator
) SHGetMalloc(&ppv
);
459 ret
= (LPVOID
) IMalloc_Alloc(ShellTaskAllocator
, len
);
460 TRACE("%lu bytes at %p\n",len
, ret
);
464 /*************************************************************************
465 * SHFree [SHELL32.195]
468 * exported by ordinal
470 void WINAPI
SHFree(LPVOID pv
)
475 if (!ShellTaskAllocator
) SHGetMalloc(&ppv
);
476 IMalloc_Free(ShellTaskAllocator
, pv
);
479 /*************************************************************************
480 * SHGetDesktopFolder [SHELL32.@]
482 HRESULT WINAPI
SHGetDesktopFolder(IShellFolder
**psf
)
487 if(!psf
) return E_INVALIDARG
;
489 hres
= ISF_Desktop_Constructor(NULL
, &IID_IShellFolder
,(LPVOID
*)psf
);
491 TRACE("-- %p->(%p)\n",psf
, *psf
);
494 /**************************************************************************
495 * Default ClassFactory Implementation
497 * SHCreateDefClassObject
500 * Helper function for dlls without their own classfactory.
501 * A generic classfactory is returned.
502 * When the CreateInstance of the cf is called the callback is executed.
507 const IClassFactoryVtbl
*lpVtbl
;
510 LPFNCREATEINSTANCE lpfnCI
;
511 const IID
* riidInst
;
512 LONG
* pcRefDll
; /* pointer to refcounter in external dll (ugrrr...) */
515 static const IClassFactoryVtbl dclfvt
;
517 /**************************************************************************
518 * IDefClF_fnConstructor
521 IClassFactory
* IDefClF_fnConstructor(LPFNCREATEINSTANCE lpfnCI
, PLONG pcRefDll
, REFIID riidInst
)
525 lpclf
= HeapAlloc(GetProcessHeap(),0,sizeof(IDefClFImpl
));
527 lpclf
->lpVtbl
= &dclfvt
;
528 lpclf
->lpfnCI
= lpfnCI
;
529 lpclf
->pcRefDll
= pcRefDll
;
531 if (pcRefDll
) InterlockedIncrement(pcRefDll
);
532 lpclf
->riidInst
= riidInst
;
534 TRACE("(%p)%s\n",lpclf
, shdebugstr_guid(riidInst
));
535 return (LPCLASSFACTORY
)lpclf
;
537 /**************************************************************************
538 * IDefClF_fnQueryInterface
540 static HRESULT WINAPI
IDefClF_fnQueryInterface(
541 LPCLASSFACTORY iface
, REFIID riid
, LPVOID
*ppvObj
)
543 IDefClFImpl
*This
= (IDefClFImpl
*)iface
;
545 TRACE("(%p)->(%s)\n",This
,shdebugstr_guid(riid
));
549 if(IsEqualIID(riid
, &IID_IUnknown
) || IsEqualIID(riid
, &IID_IClassFactory
)) {
551 InterlockedIncrement(&This
->ref
);
555 TRACE("-- E_NOINTERFACE\n");
556 return E_NOINTERFACE
;
558 /******************************************************************************
561 static ULONG WINAPI
IDefClF_fnAddRef(LPCLASSFACTORY iface
)
563 IDefClFImpl
*This
= (IDefClFImpl
*)iface
;
564 ULONG refCount
= InterlockedIncrement(&This
->ref
);
566 TRACE("(%p)->(count=%lu)\n", This
, refCount
- 1);
570 /******************************************************************************
573 static ULONG WINAPI
IDefClF_fnRelease(LPCLASSFACTORY iface
)
575 IDefClFImpl
*This
= (IDefClFImpl
*)iface
;
576 ULONG refCount
= InterlockedDecrement(&This
->ref
);
578 TRACE("(%p)->(count=%lu)\n", This
, refCount
+ 1);
582 if (This
->pcRefDll
) InterlockedDecrement(This
->pcRefDll
);
584 TRACE("-- destroying IClassFactory(%p)\n",This
);
585 HeapFree(GetProcessHeap(),0,This
);
590 /******************************************************************************
591 * IDefClF_fnCreateInstance
593 static HRESULT WINAPI
IDefClF_fnCreateInstance(
594 LPCLASSFACTORY iface
, LPUNKNOWN pUnkOuter
, REFIID riid
, LPVOID
*ppvObject
)
596 IDefClFImpl
*This
= (IDefClFImpl
*)iface
;
598 TRACE("%p->(%p,%s,%p)\n",This
,pUnkOuter
,shdebugstr_guid(riid
),ppvObject
);
602 if ( This
->riidInst
==NULL
||
603 IsEqualCLSID(riid
, This
->riidInst
) ||
604 IsEqualCLSID(riid
, &IID_IUnknown
) )
606 return This
->lpfnCI(pUnkOuter
, riid
, ppvObject
);
609 ERR("unknown IID requested %s\n",shdebugstr_guid(riid
));
610 return E_NOINTERFACE
;
612 /******************************************************************************
613 * IDefClF_fnLockServer
615 static HRESULT WINAPI
IDefClF_fnLockServer(LPCLASSFACTORY iface
, BOOL fLock
)
617 IDefClFImpl
*This
= (IDefClFImpl
*)iface
;
618 TRACE("%p->(0x%x), not implemented\n",This
, fLock
);
622 static const IClassFactoryVtbl dclfvt
=
624 IDefClF_fnQueryInterface
,
627 IDefClF_fnCreateInstance
,
631 /******************************************************************************
632 * SHCreateDefClassObject [SHELL32.70]
634 HRESULT WINAPI
SHCreateDefClassObject(
637 LPFNCREATEINSTANCE lpfnCI
, /* [in] create instance callback entry */
638 LPDWORD pcRefDll
, /* [in/out] ref count of the dll */
639 REFIID riidInst
) /* [in] optional interface to the instance */
643 TRACE("%s %p %p %p %s\n",
644 shdebugstr_guid(riid
), ppv
, lpfnCI
, pcRefDll
, shdebugstr_guid(riidInst
));
646 if (! IsEqualCLSID(riid
, &IID_IClassFactory
) ) return E_NOINTERFACE
;
647 if (! (pcf
= IDefClF_fnConstructor(lpfnCI
, (PLONG
)pcRefDll
, riidInst
))) return E_OUTOFMEMORY
;
652 /*************************************************************************
653 * DragAcceptFiles [SHELL32.@]
655 void WINAPI
DragAcceptFiles(HWND hWnd
, BOOL b
)
659 if( !IsWindow(hWnd
) ) return;
660 exstyle
= GetWindowLongA(hWnd
,GWL_EXSTYLE
);
662 exstyle
|= WS_EX_ACCEPTFILES
;
664 exstyle
&= ~WS_EX_ACCEPTFILES
;
665 SetWindowLongA(hWnd
,GWL_EXSTYLE
,exstyle
);
668 /*************************************************************************
669 * DragFinish [SHELL32.@]
671 void WINAPI
DragFinish(HDROP h
)
674 GlobalFree((HGLOBAL
)h
);
677 /*************************************************************************
678 * DragQueryPoint [SHELL32.@]
680 BOOL WINAPI
DragQueryPoint(HDROP hDrop
, POINT
*p
)
682 DROPFILES
*lpDropFileStruct
;
687 lpDropFileStruct
= (DROPFILES
*) GlobalLock(hDrop
);
689 *p
= lpDropFileStruct
->pt
;
690 bRet
= lpDropFileStruct
->fNC
;
696 /*************************************************************************
697 * DragQueryFileA [SHELL32.@]
698 * DragQueryFile [SHELL32.@]
700 UINT WINAPI
DragQueryFileA(
708 DROPFILES
*lpDropFileStruct
= (DROPFILES
*) GlobalLock(hDrop
);
710 TRACE("(%p, %x, %p, %u)\n", hDrop
,lFile
,lpszFile
,lLength
);
712 if(!lpDropFileStruct
) goto end
;
714 lpDrop
= (LPSTR
) lpDropFileStruct
+ lpDropFileStruct
->pFiles
;
716 if(lpDropFileStruct
->fWide
) {
717 LPWSTR lpszFileW
= NULL
;
720 lpszFileW
= HeapAlloc(GetProcessHeap(), 0, lLength
*sizeof(WCHAR
));
721 if(lpszFileW
== NULL
) {
725 i
= DragQueryFileW(hDrop
, lFile
, lpszFileW
, lLength
);
728 WideCharToMultiByte(CP_ACP
, 0, lpszFileW
, -1, lpszFile
, lLength
, 0, NULL
);
729 HeapFree(GetProcessHeap(), 0, lpszFileW
);
736 while (*lpDrop
++); /* skip filename */
739 i
= (lFile
== 0xFFFFFFFF) ? i
: 0;
746 if (!lpszFile
) goto end
; /* needed buffer size */
747 i
= (lLength
> i
) ? i
: lLength
;
748 lstrcpynA (lpszFile
, lpDrop
, i
);
754 /*************************************************************************
755 * DragQueryFileW [SHELL32.@]
757 UINT WINAPI
DragQueryFileW(
765 DROPFILES
*lpDropFileStruct
= (DROPFILES
*) GlobalLock(hDrop
);
767 TRACE("(%p, %x, %p, %u)\n", hDrop
,lFile
,lpszwFile
,lLength
);
769 if(!lpDropFileStruct
) goto end
;
771 lpwDrop
= (LPWSTR
) ((LPSTR
)lpDropFileStruct
+ lpDropFileStruct
->pFiles
);
773 if(lpDropFileStruct
->fWide
== FALSE
) {
774 LPSTR lpszFileA
= NULL
;
777 lpszFileA
= HeapAlloc(GetProcessHeap(), 0, lLength
);
778 if(lpszFileA
== NULL
) {
782 i
= DragQueryFileA(hDrop
, lFile
, lpszFileA
, lLength
);
785 MultiByteToWideChar(CP_ACP
, 0, lpszFileA
, -1, lpszwFile
, lLength
);
786 HeapFree(GetProcessHeap(), 0, lpszFileA
);
794 while (*lpwDrop
++); /* skip filename */
797 i
= (lFile
== 0xFFFFFFFF) ? i
: 0;
802 i
= strlenW(lpwDrop
);
804 if ( !lpszwFile
) goto end
; /* needed buffer size */
806 i
= (lLength
> i
) ? i
: lLength
;
807 lstrcpynW (lpszwFile
, lpwDrop
, i
);