515 lines
17 KiB
C
515 lines
17 KiB
C
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/*
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* Shell Folder stuff
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*
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* Copyright 1997 Marcus Meissner
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* Copyright 1998, 1999, 2002 Juergen Schmied
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*
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* IShellFolder2 and related interfaces
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include "winerror.h"
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#include "windef.h"
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#include "winbase.h"
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#include "winreg.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "ole2.h"
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#include "shlguid.h"
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#include "pidl.h"
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#include "undocshell.h"
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#include "shell32_main.h"
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#include "shresdef.h"
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#include "shlwapi.h"
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#include "shellfolder.h"
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#include "wine/debug.h"
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#include "debughlp.h"
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#include "shfldr.h"
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WINE_DEFAULT_DEBUG_CHANNEL (shell);
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/***************************************************************************
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* debughelper: print out the return address
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* helps especially to track down unbalanced AddRef/Release
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*/
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#define MEM_DEBUG 0
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#if MEM_DEBUG
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#define _CALL_TRACE TRACE("called from: 0x%08x\n", *( ((UINT*)&iface)-1 ));
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#else
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#define _CALL_TRACE
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#endif
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static const WCHAR wszDotShellClassInfo[] = {'.','S','h','e','l','l','C','l','a','s','s','I','n','f','o',0};
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/***************************************************************************
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* SHELL32_GetCustomFolderAttribute (internal function)
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*
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* Gets a value from the folder's desktop.ini file, if one exists.
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*
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* PARAMETERS
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* pidl [I] Folder containing the desktop.ini file.
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* pwszHeading [I] Heading in .ini file.
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* pwszAttribute [I] Attribute in .ini file.
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* pwszValue [O] Buffer to store value into.
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* cchValue [I] Size in characters including NULL of buffer pointed to
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* by pwszValue.
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*
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* RETURNS
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* TRUE if returned non-NULL value.
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* FALSE otherwise.
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*/
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BOOL SHELL32_GetCustomFolderAttribute(
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LPCITEMIDLIST pidl, LPCWSTR pwszHeading, LPCWSTR pwszAttribute,
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LPWSTR pwszValue, DWORD cchValue)
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{
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#if 0 /* Hack around not having system attribute on non-Windows file systems */
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DWORD dwAttrib = _ILGetFileAttributes(pidl, NULL, 0);
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#else
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DWORD dwAttrib = FILE_ATTRIBUTE_SYSTEM;
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#endif
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if (dwAttrib & FILE_ATTRIBUTE_SYSTEM)
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{
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DWORD ret;
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WCHAR wszDesktopIniPath[MAX_PATH];
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static const WCHAR wszDesktopIni[] =
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{'d','e','s','k','t','o','p','.','i','n','i',0};
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static const WCHAR wszDefault[] =
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{0};
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if (!SHGetPathFromIDListW(pidl, wszDesktopIniPath))
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return FALSE;
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PathAppendW(wszDesktopIniPath, wszDesktopIni);
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ret = GetPrivateProfileStringW(pwszHeading, pwszAttribute,
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wszDefault, pwszValue, cchValue, wszDesktopIniPath);
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if (!ret) return FALSE;
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return TRUE;
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}
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return FALSE;
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}
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/***************************************************************************
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* GetNextElement (internal function)
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*
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* gets a part of a string till the first backslash
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*
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* PARAMETERS
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* pszNext [IN] string to get the element from
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* pszOut [IN] pointer to buffer whitch receives string
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* dwOut [IN] length of pszOut
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*
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* RETURNS
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* LPSTR pointer to first, not yet parsed char
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*/
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LPCWSTR GetNextElementW (LPCWSTR pszNext, LPWSTR pszOut, DWORD dwOut)
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{
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LPCWSTR pszTail = pszNext;
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DWORD dwCopy;
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TRACE ("(%s %p 0x%08lx)\n", debugstr_w (pszNext), pszOut, dwOut);
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*pszOut = 0x0000;
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if (!pszNext || !*pszNext)
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return NULL;
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while (*pszTail && (*pszTail != (WCHAR) '\\'))
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pszTail++;
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dwCopy = (WCHAR *) pszTail - (WCHAR *) pszNext + 1;
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lstrcpynW (pszOut, pszNext, (dwOut < dwCopy) ? dwOut : dwCopy);
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if (*pszTail)
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pszTail++;
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else
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pszTail = NULL;
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TRACE ("--(%s %s 0x%08lx %p)\n", debugstr_w (pszNext), debugstr_w (pszOut), dwOut, pszTail);
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return pszTail;
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}
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HRESULT SHELL32_ParseNextElement (IShellFolder2 * psf, HWND hwndOwner, LPBC pbc,
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LPITEMIDLIST * pidlInOut, LPOLESTR szNext, DWORD * pEaten, DWORD * pdwAttributes)
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{
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HRESULT hr = E_INVALIDARG;
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LPITEMIDLIST pidlOut = NULL,
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pidlTemp = NULL;
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IShellFolder *psfChild;
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TRACE ("(%p, %p, %p, %s)\n", psf, pbc, pidlInOut ? *pidlInOut : NULL, debugstr_w (szNext));
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/* get the shellfolder for the child pidl and let it analyse further */
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hr = IShellFolder_BindToObject (psf, *pidlInOut, pbc, &IID_IShellFolder, (LPVOID *) & psfChild);
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if (SUCCEEDED(hr)) {
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hr = IShellFolder_ParseDisplayName (psfChild, hwndOwner, pbc, szNext, pEaten, &pidlOut, pdwAttributes);
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IShellFolder_Release (psfChild);
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if (SUCCEEDED(hr)) {
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pidlTemp = ILCombine (*pidlInOut, pidlOut);
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if (!pidlTemp)
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hr = E_OUTOFMEMORY;
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}
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if (pidlOut)
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ILFree (pidlOut);
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}
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ILFree (*pidlInOut);
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*pidlInOut = pidlTemp;
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TRACE ("-- pidl=%p ret=0x%08lx\n", pidlInOut ? *pidlInOut : NULL, hr);
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return hr;
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}
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/***********************************************************************
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* SHELL32_CoCreateInitSF
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*
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* Creates a shell folder and initializes it with a pidl and a root folder
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* via IPersistFolder3 or IPersistFolder.
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*
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* NOTES
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* pathRoot can be NULL for Folders beeing a drive.
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* In this case the absolute path is build from pidlChild (eg. C:)
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*/
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HRESULT SHELL32_CoCreateInitSF (LPCITEMIDLIST pidlRoot, LPCSTR pathRoot,
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LPCITEMIDLIST pidlChild, REFCLSID clsid, REFIID riid, LPVOID * ppvOut)
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{
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HRESULT hr;
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TRACE ("%p %s %p\n", pidlRoot, pathRoot, pidlChild);
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if (SUCCEEDED ((hr = SHCoCreateInstance (NULL, clsid, NULL, riid, ppvOut)))) {
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LPITEMIDLIST pidlAbsolute = ILCombine (pidlRoot, pidlChild);
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IPersistFolder *pPF;
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IPersistFolder3 *ppf;
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if (SUCCEEDED (IUnknown_QueryInterface ((IUnknown *) * ppvOut, &IID_IPersistFolder3, (LPVOID *) & ppf))) {
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PERSIST_FOLDER_TARGET_INFO ppfti;
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char szDestPath[MAX_PATH];
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ZeroMemory (&ppfti, sizeof (ppfti));
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/* build path */
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if (pathRoot) {
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lstrcpyA (szDestPath, pathRoot);
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PathAddBackslashA(szDestPath); /* FIXME: why have drives a backslash here ? */
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} else {
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szDestPath[0] = '\0';
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}
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if (pidlChild) {
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LPSTR pszChild = _ILGetTextPointer(pidlChild);
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if (pszChild)
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lstrcatA (szDestPath, pszChild);
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else
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hr = E_INVALIDARG;
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}
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/* fill the PERSIST_FOLDER_TARGET_INFO */
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ppfti.dwAttributes = -1;
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ppfti.csidl = -1;
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MultiByteToWideChar (CP_ACP, 0, szDestPath, -1, ppfti.szTargetParsingName, MAX_PATH);
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IPersistFolder3_InitializeEx (ppf, NULL, pidlAbsolute, &ppfti);
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IPersistFolder3_Release (ppf);
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}
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else if (SUCCEEDED ((hr = IUnknown_QueryInterface ((IUnknown *) * ppvOut, &IID_IPersistFolder, (LPVOID *) & pPF)))) {
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IPersistFolder_Initialize (pPF, pidlAbsolute);
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IPersistFolder_Release (pPF);
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}
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ILFree (pidlAbsolute);
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}
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TRACE ("-- (%p) ret=0x%08lx\n", *ppvOut, hr);
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return hr;
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}
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/***********************************************************************
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* SHELL32_BindToChild
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*
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* Common code for IShellFolder_BindToObject.
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* Creates a shell folder by binding to a root pidl.
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*/
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HRESULT SHELL32_BindToChild (LPCITEMIDLIST pidlRoot,
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LPCSTR pathRoot, LPCITEMIDLIST pidlComplete, REFIID riid, LPVOID * ppvOut)
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{
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GUID const *clsid;
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IShellFolder *pSF;
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HRESULT hr;
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LPITEMIDLIST pidlChild;
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if (!pidlRoot || !ppvOut)
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return E_INVALIDARG;
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*ppvOut = NULL;
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pidlChild = ILCloneFirst (pidlComplete);
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if ((clsid = _ILGetGUIDPointer (pidlChild))) {
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/* virtual folder */
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hr = SHELL32_CoCreateInitSF (pidlRoot, pathRoot, pidlChild, clsid, &IID_IShellFolder, (LPVOID *) & pSF);
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} else {
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/* file system folder */
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CLSID clsidFolder = CLSID_ShellFSFolder;
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static const WCHAR wszCLSID[] = {'C','L','S','I','D',0};
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WCHAR wszCLSIDValue[CHARS_IN_GUID];
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LPITEMIDLIST pidlAbsolute = ILCombine (pidlRoot, pidlChild);
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/* see if folder CLSID should be overridden by desktop.ini file */
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if (SHELL32_GetCustomFolderAttribute (pidlAbsolute,
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wszDotShellClassInfo, wszCLSID, wszCLSIDValue, CHARS_IN_GUID))
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CLSIDFromString (wszCLSIDValue, &clsidFolder);
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ILFree (pidlAbsolute);
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hr = SHELL32_CoCreateInitSF (pidlRoot, pathRoot, pidlChild,
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&clsidFolder, &IID_IShellFolder, (LPVOID *)&pSF);
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}
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ILFree (pidlChild);
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if (SUCCEEDED (hr)) {
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if (_ILIsPidlSimple (pidlComplete)) {
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/* no sub folders */
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hr = IShellFolder_QueryInterface (pSF, riid, ppvOut);
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} else {
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/* go deeper */
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hr = IShellFolder_BindToObject (pSF, ILGetNext (pidlComplete), NULL, riid, ppvOut);
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}
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IShellFolder_Release (pSF);
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}
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TRACE ("-- returning (%p) %08lx\n", *ppvOut, hr);
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return hr;
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}
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/***********************************************************************
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* SHELL32_GetDisplayNameOfChild
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*
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* Retrives the display name of a child object of a shellfolder.
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*
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* For a pidl eg. [subpidl1][subpidl2][subpidl3]:
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* - it binds to the child shellfolder [subpidl1]
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* - asks it for the displayname of [subpidl2][subpidl3]
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*
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* Is possible the pidl is a simple pidl. In this case it asks the
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* subfolder for the displayname of a empty pidl. The subfolder
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* returns the own displayname eg. "::{guid}". This is used for
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* virtual folders with the registry key WantsFORPARSING set.
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*/
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HRESULT SHELL32_GetDisplayNameOfChild (IShellFolder2 * psf,
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LPCITEMIDLIST pidl, DWORD dwFlags, LPSTR szOut, DWORD dwOutLen)
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{
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LPITEMIDLIST pidlFirst;
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HRESULT hr = E_INVALIDARG;
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TRACE ("(%p)->(pidl=%p 0x%08lx %p 0x%08lx)\n", psf, pidl, dwFlags, szOut, dwOutLen);
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pdump (pidl);
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pidlFirst = ILCloneFirst (pidl);
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if (pidlFirst) {
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IShellFolder2 *psfChild;
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hr = IShellFolder_BindToObject (psf, pidlFirst, NULL, &IID_IShellFolder, (LPVOID *) & psfChild);
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if (SUCCEEDED (hr)) {
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STRRET strTemp;
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LPITEMIDLIST pidlNext = ILGetNext (pidl);
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hr = IShellFolder_GetDisplayNameOf (psfChild, pidlNext, dwFlags, &strTemp);
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if (SUCCEEDED (hr)) {
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hr = StrRetToStrNA (szOut, dwOutLen, &strTemp, pidlNext);
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}
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IShellFolder_Release (psfChild);
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}
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ILFree (pidlFirst);
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} else
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hr = E_OUTOFMEMORY;
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TRACE ("-- ret=0x%08lx %s\n", hr, szOut);
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return hr;
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}
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/***********************************************************************
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* SHELL32_GetItemAttributes
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*
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* NOTES
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* observerd values:
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* folder: 0xE0000177 FILESYSTEM | HASSUBFOLDER | FOLDER
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* file: 0x40000177 FILESYSTEM
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* drive: 0xf0000144 FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR
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* mycomputer: 0xb0000154 HASSUBFOLDER | FOLDER | FILESYSANCESTOR
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* (seems to be default for shell extensions if no registry entry exists)
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*
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* win2k:
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* folder: 0xF0400177 FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR | CANMONIKER
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* file: 0x40400177 FILESYSTEM | CANMONIKER
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* drive 0xF0400154 FILESYSTEM | HASSUBFOLDER | FOLDER | FILESYSANCESTOR | CANMONIKER | CANRENAME (LABEL)
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*
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* This function does not set flags!! It only resets flags when necessary.
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*/
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HRESULT SHELL32_GetItemAttributes (IShellFolder * psf, LPCITEMIDLIST pidl, LPDWORD pdwAttributes)
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{
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GUID const *clsid;
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DWORD dwAttributes;
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DWORD dwSupportedAttr=SFGAO_CANCOPY | /*0x00000001 */
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SFGAO_CANMOVE | /*0x00000002 */
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SFGAO_CANLINK | /*0x00000004 */
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SFGAO_CANRENAME | /*0x00000010 */
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SFGAO_CANDELETE | /*0x00000020 */
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SFGAO_HASPROPSHEET | /*0x00000040 */
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SFGAO_DROPTARGET | /*0x00000100 */
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SFGAO_LINK | /*0x00010000 */
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SFGAO_READONLY | /*0x00040000 */
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SFGAO_HIDDEN | /*0x00080000 */
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SFGAO_FILESYSANCESTOR | /*0x10000000 */
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SFGAO_FOLDER | /*0x20000000 */
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SFGAO_FILESYSTEM | /*0x40000000 */
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SFGAO_HASSUBFOLDER; /*0x80000000 */
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TRACE ("0x%08lx\n", *pdwAttributes);
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if (*pdwAttributes & ~dwSupportedAttr)
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{
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WARN ("attributes 0x%08lx not implemented\n", (*pdwAttributes & ~dwSupportedAttr));
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*pdwAttributes &= dwSupportedAttr;
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}
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if (_ILIsDrive (pidl)) {
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*pdwAttributes &= SFGAO_HASSUBFOLDER|SFGAO_FILESYSTEM|SFGAO_FOLDER|SFGAO_FILESYSANCESTOR|SFGAO_DROPTARGET|SFGAO_HASPROPSHEET|SFGAO_CANLINK;
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} else if ((clsid = _ILGetGUIDPointer (pidl))) {
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if (HCR_GetFolderAttributes (clsid, &dwAttributes)) {
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*pdwAttributes &= dwAttributes;
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} else {
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*pdwAttributes &= SFGAO_HASSUBFOLDER|SFGAO_FOLDER|SFGAO_FILESYSANCESTOR|SFGAO_DROPTARGET|SFGAO_HASPROPSHEET|SFGAO_CANRENAME|SFGAO_CANLINK;
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}
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} else if (_ILGetDataPointer (pidl)) {
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dwAttributes = _ILGetFileAttributes (pidl, NULL, 0);
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*pdwAttributes &= ~SFGAO_FILESYSANCESTOR;
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if ((SFGAO_FOLDER & *pdwAttributes) && !(dwAttributes & FILE_ATTRIBUTE_DIRECTORY))
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*pdwAttributes &= ~(SFGAO_FOLDER | SFGAO_HASSUBFOLDER);
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if ((SFGAO_HIDDEN & *pdwAttributes) && !(dwAttributes & FILE_ATTRIBUTE_HIDDEN))
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*pdwAttributes &= ~SFGAO_HIDDEN;
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if ((SFGAO_READONLY & *pdwAttributes) && !(dwAttributes & FILE_ATTRIBUTE_READONLY))
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*pdwAttributes &= ~SFGAO_READONLY;
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if (SFGAO_LINK & *pdwAttributes) {
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char ext[MAX_PATH];
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if (!_ILGetExtension(pidl, ext, MAX_PATH) || strcasecmp(ext, "lnk"))
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*pdwAttributes &= ~SFGAO_LINK;
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}
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} else {
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*pdwAttributes &= SFGAO_HASSUBFOLDER|SFGAO_FOLDER|SFGAO_FILESYSANCESTOR|SFGAO_DROPTARGET|SFGAO_HASPROPSHEET|SFGAO_CANRENAME|SFGAO_CANLINK;
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}
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TRACE ("-- 0x%08lx\n", *pdwAttributes);
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return S_OK;
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}
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/***********************************************************************
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* SHELL32_CompareIDs
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*/
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HRESULT SHELL32_CompareIDs (IShellFolder * iface, LPARAM lParam, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
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{
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int type1,
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type2;
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char szTemp1[MAX_PATH];
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char szTemp2[MAX_PATH];
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HRESULT nReturn;
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LPITEMIDLIST firstpidl,
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nextpidl1,
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nextpidl2;
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IShellFolder *psf;
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/* test for empty pidls */
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BOOL isEmpty1 = _ILIsDesktop (pidl1);
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BOOL isEmpty2 = _ILIsDesktop (pidl2);
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if (isEmpty1 && isEmpty2)
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return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 0 );
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if (isEmpty1)
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return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
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if (isEmpty2)
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return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
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/* test for different types. Sort order is the PT_* constant */
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type1 = _ILGetDataPointer (pidl1)->type;
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|
type2 = _ILGetDataPointer (pidl2)->type;
|
|
if (type1 < type2)
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
|
|
else if (type1 > type2)
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
|
|
|
|
/* test for name of pidl */
|
|
_ILSimpleGetText (pidl1, szTemp1, MAX_PATH);
|
|
_ILSimpleGetText (pidl2, szTemp2, MAX_PATH);
|
|
nReturn = strcasecmp (szTemp1, szTemp2);
|
|
if (nReturn < 0)
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
|
|
else if (nReturn > 0)
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
|
|
|
|
/* test of complex pidls */
|
|
firstpidl = ILCloneFirst (pidl1);
|
|
nextpidl1 = ILGetNext (pidl1);
|
|
nextpidl2 = ILGetNext (pidl2);
|
|
|
|
/* optimizing: test special cases and bind not deeper */
|
|
/* the deeper shellfolder would do the same */
|
|
isEmpty1 = _ILIsDesktop (nextpidl1);
|
|
isEmpty2 = _ILIsDesktop (nextpidl2);
|
|
|
|
if (isEmpty1 && isEmpty2) {
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 0 );
|
|
} else if (isEmpty1) {
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, (WORD)-1 );
|
|
} else if (isEmpty2) {
|
|
return MAKE_HRESULT( SEVERITY_SUCCESS, 0, 1 );
|
|
/* optimizing end */
|
|
} else if (SUCCEEDED (IShellFolder_BindToObject (iface, firstpidl, NULL, &IID_IShellFolder, (LPVOID *) & psf))) {
|
|
nReturn = IShellFolder_CompareIDs (psf, lParam, nextpidl1, nextpidl2);
|
|
IShellFolder_Release (psf);
|
|
}
|
|
ILFree (firstpidl);
|
|
return nReturn;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* SHCreateLinks
|
|
*
|
|
* Undocumented.
|
|
*/
|
|
HRESULT WINAPI SHCreateLinks( HWND hWnd, LPCSTR lpszDir, LPDATAOBJECT lpDataObject,
|
|
UINT uFlags, LPITEMIDLIST *lppidlLinks)
|
|
{
|
|
FIXME("%p %s %p %08x %p\n",hWnd,lpszDir,lpDataObject,uFlags,lppidlLinks);
|
|
return E_NOTIMPL;
|
|
}
|