mirror of
https://github.com/reactos/reactos.git
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674 lines
19 KiB
C
674 lines
19 KiB
C
/*
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* handling of SHELL32.DLL OLE-Objects
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*
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* Copyright 1997 Marcus Meissner
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* Copyright 1998 Juergen Schmied <juergen.schmied@metronet.de>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <precomp.h>
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WINE_DEFAULT_DEBUG_CHANNEL(shell);
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extern HRESULT WINAPI IFSFolder_Constructor(IUnknown * pUnkOuter, REFIID riid, LPVOID * ppv);
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static const WCHAR sShell32[12] = {'S','H','E','L','L','3','2','.','D','L','L','\0'};
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static const GUID dummy1 = {0xD969A300, 0xE7FF, 0x11d0, {0xA9, 0x3B, 0x00, 0xA0, 0xC9, 0x0F, 0x27, 0x19} };
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/**************************************************************************
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* Default ClassFactory types
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*/
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typedef HRESULT (CALLBACK *LPFNCREATEINSTANCE)(IUnknown* pUnkOuter, REFIID riid, LPVOID* ppvObject);
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static IClassFactory * IDefClF_fnConstructor(LPFNCREATEINSTANCE lpfnCI, PLONG pcRefDll, REFIID riidInst);
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/* this table contains all CLSID's of shell32 objects */
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static const struct {
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REFIID riid;
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LPFNCREATEINSTANCE lpfnCI;
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} InterfaceTable[] = {
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{&CLSID_ShellFSFolder, &IFSFolder_Constructor},
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{&CLSID_MyComputer, &ISF_MyComputer_Constructor},
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{&CLSID_NetworkPlaces, &ISF_NetworkPlaces_Constructor},
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{&CLSID_ShellDesktop, &ISF_Desktop_Constructor},
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{&CLSID_ShellItem, &IShellItem_Constructor},
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{&CLSID_ShellLink, &IShellLink_Constructor},
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{&CLSID_DragDropHelper, &IDropTargetHelper_Constructor},
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{&CLSID_ControlPanel, &IControlPanel_Constructor},
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{&CLSID_AutoComplete, &IAutoComplete_Constructor},
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#if 0
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{&CLSID_UnixFolder, &UnixFolder_Constructor},
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{&CLSID_UnixDosFolder, &UnixDosFolder_Constructor},
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{&CLSID_FolderShortcut, &FolderShortcut_Constructor},
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#endif
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{&CLSID_MyDocuments, &ISF_MyDocuments_Constructor},
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{&CLSID_FontsFolderShortcut, &ISF_Fonts_Constructor},
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{&CLSID_Printers, &ISF_Printers_Constructor},
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{&CLSID_AdminFolderShortcut, &ISF_AdminTools_Constructor},
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{&CLSID_RecycleBin, &RecycleBin_Constructor},
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{&CLSID_OpenWith, &SHEOW_Constructor},
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{&dummy1, &INewItem_Constructor},
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{&CLSID_StartMenu, &StartMenu_Constructor},
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{&CLSID_MenuBandSite, &MenuBandSite_Constructor},
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{NULL,NULL}
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};
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/* FIXME: this should be SHLWAPI.24 since we can't yet import by ordinal */
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DWORD WINAPI __SHGUIDToStringW (REFGUID guid, LPWSTR str)
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{
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WCHAR sFormat[52] = {'{','%','0','8','l','x','-','%','0','4',
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'x','-','%','0','4','x','-','%','0','2',
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'x','%','0','2','x','-','%','0','2','x',
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'%','0','2','x','%','0','2','x','%','0',
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'2','x','%','0','2','x','%','0','2','x',
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'}','\0'};
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return swprintf ( str, sFormat,
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guid->Data1, guid->Data2, guid->Data3,
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guid->Data4[0], guid->Data4[1], guid->Data4[2], guid->Data4[3],
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guid->Data4[4], guid->Data4[5], guid->Data4[6], guid->Data4[7] );
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}
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/*************************************************************************
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* SHCoCreateInstance [SHELL32.102]
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*
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* Equivalent to CoCreateInstance. Under Windows 9x this function could sometimes
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* use the shell32 built-in "mini-COM" without the need to load ole32.dll - see
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* SHLoadOLE for details.
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*
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* Under wine if a "LoadWithoutCOM" value is present or the object resides in
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* shell32.dll the function will load the object manually without the help of ole32
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*
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* NOTES
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* exported by ordinal
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*
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* SEE ALSO
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* CoCreateInstace, SHLoadOLE
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*/
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HRESULT WINAPI SHCoCreateInstance(
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LPCWSTR aclsid,
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const CLSID *clsid,
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LPUNKNOWN pUnkOuter,
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REFIID refiid,
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LPVOID *ppv)
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{
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DWORD hres;
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CLSID iid;
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const CLSID * myclsid = clsid;
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WCHAR sKeyName[MAX_PATH];
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const WCHAR sCLSID[7] = {'C','L','S','I','D','\\','\0'};
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WCHAR sClassID[60];
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const WCHAR sInProcServer32[16] ={'\\','I','n','p','r','o','c','S','e','r','v','e','r','3','2','\0'};
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const WCHAR sLoadWithoutCOM[15] ={'L','o','a','d','W','i','t','h','o','u','t','C','O','M','\0'};
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WCHAR sDllPath[MAX_PATH];
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HKEY hKey;
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DWORD dwSize;
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BOOLEAN bLoadFromShell32 = FALSE;
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BOOLEAN bLoadWithoutCOM = FALSE;
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IClassFactory * pcf = NULL;
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if(!ppv) return E_POINTER;
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*ppv=NULL;
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/* if the clsid is a string, convert it */
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if (!clsid)
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{
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if (!aclsid) return REGDB_E_CLASSNOTREG;
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CLSIDFromString((LPOLESTR)aclsid, &iid);
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myclsid = &iid;
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}
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TRACE("(%p,%s,unk:%p,%s,%p)\n",
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aclsid,shdebugstr_guid(myclsid),pUnkOuter,shdebugstr_guid(refiid),ppv);
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/* we look up the dll path in the registry */
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__SHGUIDToStringW(myclsid, sClassID);
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wcscpy(sKeyName, sCLSID);
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wcscat(sKeyName, sClassID);
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wcscat(sKeyName, sInProcServer32);
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if (ERROR_SUCCESS == RegOpenKeyExW(HKEY_CLASSES_ROOT, sKeyName, 0, KEY_READ, &hKey)) {
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dwSize = sizeof(sDllPath);
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SHQueryValueExW(hKey, NULL, 0,0, sDllPath, &dwSize );
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/* if a special registry key is set, we load a shell extension without help of OLE32 */
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bLoadWithoutCOM = (ERROR_SUCCESS == SHQueryValueExW(hKey, sLoadWithoutCOM, 0, 0, 0, 0));
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/* if the com object is inside shell32, omit use of ole32 */
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bLoadFromShell32 = (0==lstrcmpiW( PathFindFileNameW(sDllPath), sShell32));
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RegCloseKey (hKey);
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} else {
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/* since we can't find it in the registry we try internally */
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bLoadFromShell32 = TRUE;
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}
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TRACE("WithoutCom=%u FromShell=%u\n", bLoadWithoutCOM, bLoadFromShell32);
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/* now we create an instance */
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if (bLoadFromShell32) {
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if (! SUCCEEDED(DllGetClassObject(myclsid, &IID_IClassFactory,(LPVOID*)&pcf))) {
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ERR("LoadFromShell failed for CLSID=%s\n", shdebugstr_guid(myclsid));
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}
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} else if (bLoadWithoutCOM) {
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/* load an external dll without ole32 */
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HANDLE hLibrary;
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typedef HRESULT (CALLBACK *DllGetClassObjectFunc)(REFCLSID clsid, REFIID iid, LPVOID *ppv);
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DllGetClassObjectFunc DllGetClassObject;
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if ((hLibrary = LoadLibraryExW(sDllPath, 0, LOAD_WITH_ALTERED_SEARCH_PATH)) == 0) {
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ERR("couldn't load InprocServer32 dll %s\n", debugstr_w(sDllPath));
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hres = E_ACCESSDENIED;
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goto end;
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} else if (!(DllGetClassObject = (DllGetClassObjectFunc)GetProcAddress(hLibrary, "DllGetClassObject"))) {
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ERR("couldn't find function DllGetClassObject in %s\n", debugstr_w(sDllPath));
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FreeLibrary( hLibrary );
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hres = E_ACCESSDENIED;
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goto end;
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} else if (FAILED(hres = DllGetClassObject(myclsid, &IID_IClassFactory, (LPVOID*)&pcf))) {
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TRACE("GetClassObject failed 0x%08x\n", hres);
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goto end;
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}
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} else {
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/* load an external dll in the usual way */
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hres = CoCreateInstance(myclsid, pUnkOuter, CLSCTX_INPROC_SERVER, refiid, ppv);
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goto end;
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}
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/* here we should have a ClassFactory */
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if (!pcf) return E_ACCESSDENIED;
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hres = IClassFactory_CreateInstance(pcf, pUnkOuter, refiid, ppv);
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IClassFactory_Release(pcf);
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end:
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if(hres!=S_OK)
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{
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ERR("failed (0x%08x) to create CLSID:%s IID:%s\n",
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hres, shdebugstr_guid(myclsid), shdebugstr_guid(refiid));
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ERR("class not found in registry\n");
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}
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TRACE("-- instance: %p\n",*ppv);
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return hres;
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}
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/*************************************************************************
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* DllGetClassObject [SHELL32.@]
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* SHDllGetClassObject [SHELL32.128]
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*/
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HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
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{
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HRESULT hres = E_OUTOFMEMORY;
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IClassFactory * pcf = NULL;
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int i;
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TRACE("CLSID:%s,IID:%s\n",shdebugstr_guid(rclsid),shdebugstr_guid(iid));
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if (!ppv) return E_INVALIDARG;
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*ppv = NULL;
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/* search our internal interface table */
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for(i=0;InterfaceTable[i].riid;i++) {
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if(IsEqualIID(InterfaceTable[i].riid, rclsid)) {
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TRACE("index[%u]\n", i);
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pcf = IDefClF_fnConstructor(InterfaceTable[i].lpfnCI, NULL, NULL);
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}
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}
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if (!pcf) {
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FIXME("failed for CLSID=%s\n", shdebugstr_guid(rclsid));
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return CLASS_E_CLASSNOTAVAILABLE;
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}
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hres = IClassFactory_QueryInterface(pcf, iid, ppv);
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IClassFactory_Release(pcf);
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TRACE("-- pointer to class factory: %p\n",*ppv);
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return hres;
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}
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/*************************************************************************
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* SHCLSIDFromString [SHELL32.147]
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*
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* Under Windows 9x this was an ANSI version of CLSIDFromString. It also allowed
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* to avoid dependency on ole32.dll (see SHLoadOLE for details).
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*
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* Under Windows NT/2000/XP this is equivalent to CLSIDFromString
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*
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* NOTES
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* exported by ordinal
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*
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* SEE ALSO
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* CLSIDFromString, SHLoadOLE
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*/
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DWORD WINAPI SHCLSIDFromStringA (LPCSTR clsid, CLSID *id)
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{
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WCHAR buffer[40];
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TRACE("(%p(%s) %p)\n", clsid, clsid, id);
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if (!MultiByteToWideChar( CP_ACP, 0, clsid, -1, buffer, sizeof(buffer)/sizeof(WCHAR) ))
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return CO_E_CLASSSTRING;
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return CLSIDFromString( buffer, id );
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}
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DWORD WINAPI SHCLSIDFromStringW (LPCWSTR clsid, CLSID *id)
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{
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TRACE("(%p(%s) %p)\n", clsid, debugstr_w(clsid), id);
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return CLSIDFromString((LPWSTR)clsid, id);
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}
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DWORD WINAPI SHCLSIDFromStringAW (LPCVOID clsid, CLSID *id)
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{
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if (SHELL_OsIsUnicode())
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return SHCLSIDFromStringW (clsid, id);
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return SHCLSIDFromStringA (clsid, id);
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}
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/*************************************************************************
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* SHGetMalloc [SHELL32.@]
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*
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* Equivalent to CoGetMalloc(MEMCTX_TASK, ...). Under Windows 9x this function
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* could use the shell32 built-in "mini-COM" without the need to load ole32.dll -
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* see SHLoadOLE for details.
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*
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* PARAMS
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* lpmal [O] Destination for IMalloc interface.
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*
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* RETURNS
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* Success: S_OK. lpmal contains the shells IMalloc interface.
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* Failure. An HRESULT error code.
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*
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* SEE ALSO
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* CoGetMalloc, SHLoadOLE
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*/
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HRESULT WINAPI SHGetMalloc(LPMALLOC *lpmal)
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{
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TRACE("(%p)\n", lpmal);
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return CoGetMalloc(MEMCTX_TASK, lpmal);
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}
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/*************************************************************************
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* SHAlloc [SHELL32.196]
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*
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* Equivalent to CoTaskMemAlloc. Under Windows 9x this function could use
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* the shell32 built-in "mini-COM" without the need to load ole32.dll -
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* see SHLoadOLE for details.
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*
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* NOTES
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* exported by ordinal
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*
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* SEE ALSO
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* CoTaskMemAlloc, SHLoadOLE
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*/
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LPVOID WINAPI SHAlloc(DWORD len)
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{
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LPVOID ret;
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ret = CoTaskMemAlloc(len);
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TRACE("%u bytes at %p\n",len, ret);
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return ret;
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}
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/*************************************************************************
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* SHFree [SHELL32.195]
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*
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* Equivalent to CoTaskMemFree. Under Windows 9x this function could use
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* the shell32 built-in "mini-COM" without the need to load ole32.dll -
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* see SHLoadOLE for details.
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*
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* NOTES
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* exported by ordinal
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*
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* SEE ALSO
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* CoTaskMemFree, SHLoadOLE
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*/
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void WINAPI SHFree(LPVOID pv)
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{
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TRACE("%p\n",pv);
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CoTaskMemFree(pv);
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}
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/*************************************************************************
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* SHGetDesktopFolder [SHELL32.@]
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*/
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HRESULT WINAPI SHGetDesktopFolder(IShellFolder **psf)
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{
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HRESULT hres = S_OK;
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TRACE("\n");
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if(!psf) return E_INVALIDARG;
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*psf = NULL;
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hres = ISF_Desktop_Constructor(NULL, &IID_IShellFolder,(LPVOID*)psf);
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TRACE("-- %p->(%p)\n",psf, *psf);
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return hres;
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}
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/**************************************************************************
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* Default ClassFactory Implementation
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*
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* SHCreateDefClassObject
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*
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* NOTES
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* Helper function for dlls without their own classfactory.
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* A generic classfactory is returned.
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* When the CreateInstance of the cf is called the callback is executed.
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*/
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typedef struct
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{
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const IClassFactoryVtbl *lpVtbl;
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LONG ref;
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CLSID *rclsid;
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LPFNCREATEINSTANCE lpfnCI;
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const IID * riidInst;
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LONG * pcRefDll; /* pointer to refcounter in external dll (ugrrr...) */
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} IDefClFImpl;
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static const IClassFactoryVtbl dclfvt;
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/**************************************************************************
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* IDefClF_fnConstructor
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*/
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static IClassFactory * IDefClF_fnConstructor(LPFNCREATEINSTANCE lpfnCI, PLONG pcRefDll, REFIID riidInst)
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{
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IDefClFImpl* lpclf;
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lpclf = HeapAlloc(GetProcessHeap(),0,sizeof(IDefClFImpl));
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lpclf->ref = 1;
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lpclf->lpVtbl = &dclfvt;
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lpclf->lpfnCI = lpfnCI;
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lpclf->pcRefDll = pcRefDll;
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if (pcRefDll) InterlockedIncrement(pcRefDll);
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lpclf->riidInst = riidInst;
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TRACE("(%p)%s\n",lpclf, shdebugstr_guid(riidInst));
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return (LPCLASSFACTORY)lpclf;
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}
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/**************************************************************************
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* IDefClF_fnQueryInterface
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*/
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static HRESULT WINAPI IDefClF_fnQueryInterface(
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LPCLASSFACTORY iface, REFIID riid, LPVOID *ppvObj)
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{
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IDefClFImpl *This = (IDefClFImpl *)iface;
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TRACE("(%p)->(%s)\n",This,shdebugstr_guid(riid));
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*ppvObj = NULL;
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if(IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_IClassFactory)) {
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*ppvObj = This;
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InterlockedIncrement(&This->ref);
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return S_OK;
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}
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TRACE("-- E_NOINTERFACE\n");
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return E_NOINTERFACE;
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}
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/******************************************************************************
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* IDefClF_fnAddRef
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*/
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static ULONG WINAPI IDefClF_fnAddRef(LPCLASSFACTORY iface)
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{
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IDefClFImpl *This = (IDefClFImpl *)iface;
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ULONG refCount = InterlockedIncrement(&This->ref);
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TRACE("(%p)->(count=%u)\n", This, refCount - 1);
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return refCount;
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}
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/******************************************************************************
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* IDefClF_fnRelease
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*/
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static ULONG WINAPI IDefClF_fnRelease(LPCLASSFACTORY iface)
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{
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IDefClFImpl *This = (IDefClFImpl *)iface;
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ULONG refCount = InterlockedDecrement(&This->ref);
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TRACE("(%p)->(count=%u)\n", This, refCount + 1);
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if (!refCount)
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{
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if (This->pcRefDll) InterlockedDecrement(This->pcRefDll);
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TRACE("-- destroying IClassFactory(%p)\n",This);
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HeapFree(GetProcessHeap(),0,This);
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return 0;
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}
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return refCount;
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}
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/******************************************************************************
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* IDefClF_fnCreateInstance
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*/
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static HRESULT WINAPI IDefClF_fnCreateInstance(
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LPCLASSFACTORY iface, LPUNKNOWN pUnkOuter, REFIID riid, LPVOID *ppvObject)
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{
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IDefClFImpl *This = (IDefClFImpl *)iface;
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TRACE("%p->(%p,%s,%p)\n",This,pUnkOuter,shdebugstr_guid(riid),ppvObject);
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*ppvObject = NULL;
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if ( This->riidInst==NULL ||
|
|
IsEqualCLSID(riid, This->riidInst) ||
|
|
IsEqualCLSID(riid, &IID_IUnknown) )
|
|
{
|
|
return This->lpfnCI(pUnkOuter, riid, ppvObject);
|
|
}
|
|
|
|
ERR("unknown IID requested %s\n",shdebugstr_guid(riid));
|
|
return E_NOINTERFACE;
|
|
}
|
|
/******************************************************************************
|
|
* IDefClF_fnLockServer
|
|
*/
|
|
static HRESULT WINAPI IDefClF_fnLockServer(LPCLASSFACTORY iface, BOOL fLock)
|
|
{
|
|
IDefClFImpl *This = (IDefClFImpl *)iface;
|
|
TRACE("%p->(0x%x), not implemented\n",This, fLock);
|
|
return E_NOTIMPL;
|
|
}
|
|
|
|
static const IClassFactoryVtbl dclfvt =
|
|
{
|
|
IDefClF_fnQueryInterface,
|
|
IDefClF_fnAddRef,
|
|
IDefClF_fnRelease,
|
|
IDefClF_fnCreateInstance,
|
|
IDefClF_fnLockServer
|
|
};
|
|
|
|
/******************************************************************************
|
|
* SHCreateDefClassObject [SHELL32.70]
|
|
*/
|
|
HRESULT WINAPI SHCreateDefClassObject(
|
|
REFIID riid,
|
|
LPVOID* ppv,
|
|
LPFNCREATEINSTANCE lpfnCI, /* [in] create instance callback entry */
|
|
LPDWORD pcRefDll, /* [in/out] ref count of the dll */
|
|
REFIID riidInst) /* [in] optional interface to the instance */
|
|
{
|
|
IClassFactory * pcf;
|
|
|
|
TRACE("%s %p %p %p %s\n",
|
|
shdebugstr_guid(riid), ppv, lpfnCI, pcRefDll, shdebugstr_guid(riidInst));
|
|
|
|
if (! IsEqualCLSID(riid, &IID_IClassFactory) ) return E_NOINTERFACE;
|
|
if (! (pcf = IDefClF_fnConstructor(lpfnCI, (PLONG)pcRefDll, riidInst))) return E_OUTOFMEMORY;
|
|
*ppv = pcf;
|
|
return NOERROR;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* DragAcceptFiles [SHELL32.@]
|
|
*/
|
|
void WINAPI DragAcceptFiles(HWND hWnd, BOOL b)
|
|
{
|
|
LONG exstyle;
|
|
|
|
if( !IsWindow(hWnd) ) return;
|
|
exstyle = GetWindowLongPtrA(hWnd,GWL_EXSTYLE);
|
|
if (b)
|
|
exstyle |= WS_EX_ACCEPTFILES;
|
|
else
|
|
exstyle &= ~WS_EX_ACCEPTFILES;
|
|
SetWindowLongPtrA(hWnd,GWL_EXSTYLE,exstyle);
|
|
}
|
|
|
|
/*************************************************************************
|
|
* DragFinish [SHELL32.@]
|
|
*/
|
|
void WINAPI DragFinish(HDROP h)
|
|
{
|
|
TRACE("\n");
|
|
GlobalFree(h);
|
|
}
|
|
|
|
/*************************************************************************
|
|
* DragQueryPoint [SHELL32.@]
|
|
*/
|
|
BOOL WINAPI DragQueryPoint(HDROP hDrop, POINT *p)
|
|
{
|
|
DROPFILES *lpDropFileStruct;
|
|
BOOL bRet;
|
|
|
|
TRACE("\n");
|
|
|
|
lpDropFileStruct = GlobalLock(hDrop);
|
|
|
|
*p = lpDropFileStruct->pt;
|
|
bRet = lpDropFileStruct->fNC;
|
|
|
|
GlobalUnlock(hDrop);
|
|
return bRet;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* DragQueryFileA [SHELL32.@]
|
|
* DragQueryFile [SHELL32.@]
|
|
*/
|
|
UINT WINAPI DragQueryFileA(
|
|
HDROP hDrop,
|
|
UINT lFile,
|
|
LPSTR lpszFile,
|
|
UINT lLength)
|
|
{
|
|
LPSTR lpDrop;
|
|
UINT i = 0;
|
|
DROPFILES *lpDropFileStruct = GlobalLock(hDrop);
|
|
|
|
TRACE("(%p, %x, %p, %u)\n", hDrop,lFile,lpszFile,lLength);
|
|
|
|
if(!lpDropFileStruct) goto end;
|
|
|
|
lpDrop = (LPSTR) lpDropFileStruct + lpDropFileStruct->pFiles;
|
|
|
|
if(lpDropFileStruct->fWide) {
|
|
LPWSTR lpszFileW = NULL;
|
|
|
|
if(lpszFile) {
|
|
lpszFileW = HeapAlloc(GetProcessHeap(), 0, lLength*sizeof(WCHAR));
|
|
if(lpszFileW == NULL) {
|
|
goto end;
|
|
}
|
|
}
|
|
i = DragQueryFileW(hDrop, lFile, lpszFileW, lLength);
|
|
|
|
if(lpszFileW) {
|
|
WideCharToMultiByte(CP_ACP, 0, lpszFileW, -1, lpszFile, lLength, 0, NULL);
|
|
HeapFree(GetProcessHeap(), 0, lpszFileW);
|
|
}
|
|
goto end;
|
|
}
|
|
|
|
while (i++ < lFile)
|
|
{
|
|
while (*lpDrop++); /* skip filename */
|
|
if (!*lpDrop)
|
|
{
|
|
i = (lFile == 0xFFFFFFFF) ? i : 0;
|
|
goto end;
|
|
}
|
|
}
|
|
|
|
i = strlen(lpDrop);
|
|
if (!lpszFile ) goto end; /* needed buffer size */
|
|
lstrcpynA (lpszFile, lpDrop, lLength);
|
|
end:
|
|
GlobalUnlock(hDrop);
|
|
return i;
|
|
}
|
|
|
|
/*************************************************************************
|
|
* DragQueryFileW [SHELL32.@]
|
|
*/
|
|
UINT WINAPI DragQueryFileW(
|
|
HDROP hDrop,
|
|
UINT lFile,
|
|
LPWSTR lpszwFile,
|
|
UINT lLength)
|
|
{
|
|
LPWSTR lpwDrop;
|
|
UINT i = 0;
|
|
DROPFILES *lpDropFileStruct = GlobalLock(hDrop);
|
|
|
|
TRACE("(%p, %x, %p, %u)\n", hDrop,lFile,lpszwFile,lLength);
|
|
|
|
if(!lpDropFileStruct) goto end;
|
|
|
|
lpwDrop = (LPWSTR) ((LPSTR)lpDropFileStruct + lpDropFileStruct->pFiles);
|
|
|
|
if(lpDropFileStruct->fWide == FALSE) {
|
|
LPSTR lpszFileA = NULL;
|
|
|
|
if(lpszwFile) {
|
|
lpszFileA = HeapAlloc(GetProcessHeap(), 0, lLength);
|
|
if(lpszFileA == NULL) {
|
|
goto end;
|
|
}
|
|
}
|
|
i = DragQueryFileA(hDrop, lFile, lpszFileA, lLength);
|
|
|
|
if(lpszFileA) {
|
|
MultiByteToWideChar(CP_ACP, 0, lpszFileA, -1, lpszwFile, lLength);
|
|
HeapFree(GetProcessHeap(), 0, lpszFileA);
|
|
}
|
|
goto end;
|
|
}
|
|
|
|
i = 0;
|
|
while (i++ < lFile)
|
|
{
|
|
while (*lpwDrop++); /* skip filename */
|
|
if (!*lpwDrop)
|
|
{
|
|
i = (lFile == 0xFFFFFFFF) ? i : 0;
|
|
goto end;
|
|
}
|
|
}
|
|
|
|
i = wcslen(lpwDrop);
|
|
if ( !lpszwFile) goto end; /* needed buffer size */
|
|
lstrcpynW (lpszwFile, lpwDrop, lLength);
|
|
end:
|
|
GlobalUnlock(hDrop);
|
|
return i;
|
|
}
|