求助：我想通过 ShellExecute 打开一个目录，并选定一个文件

[低调的小青蛙]

目前我只能通过 ShellExecute 打开一个目录，但没有办法选定该目录下的一个我指定的文件。

Internet Explorer 浏览器里面有我想要的效果： 当从网页上下载完一个文件后，浏览器会弹出提示“打开”“打开目录”。如果选择打开目录，则浏览器会打开保存的目录并选定刚才下载的文件。

请问大侠们，要点在哪里？

[Amuro1987218]

WinExec("explorer /n,/select, c:\\1.txt", SW_SHOWNORMAL );

[cnzdgs]

ShellExecute(NULL, _T("open"), _T("Explorer"), _T("/select, C:\\1.txt"), NULL, SW_SHOW);

[cofanz]

HRESULT GetShellFolderViewDual(ITEMIDLIST* pidl, IShellFolderViewDual** ppIShellFolderViewDual)
{
	IWebBrowserApp* pIWebBrowserApp;
	IDispatch* pDoc;
	HWND hWnd;
	HRESULT hr;
	HINSTANCE ghSHDOCVW;

	HRESULT (WINAPI*gpfSHGetIDispatchForFolder)(ITEMIDLIST* pidl, IWebBrowserApp** ppIWebBrowserApp);

	*ppIShellFolderViewDual = NULL;

	ghSHDOCVW = LoadLibrary(_T("SHDOCVW.DLL"));
	if (ghSHDOCVW == NULL)
		return FALSE;

	pIWebBrowserApp=NULL;
	gpfSHGetIDispatchForFolder =
		(HRESULT (WINAPI*)(ITEMIDLIST*, IWebBrowserApp**)) GetProcAddress(ghSHDOCVW, "SHGetIDispatchForFolder");
	if (gpfSHGetIDispatchForFolder == NULL)
		return FALSE;


	if (SUCCEEDED(gpfSHGetIDispatchForFolder(pidl, &pIWebBrowserApp)))
	{
		if (SUCCEEDED(pIWebBrowserApp->get_HWND((long*)&hWnd)))
		{
			SetForegroundWindow(hWnd);
			ShowWindow(hWnd, SW_SHOWNORMAL);
		}

		if (SUCCEEDED(hr = pIWebBrowserApp->get_Document(&pDoc)))
		{
			pDoc->QueryInterface(IID_IShellFolderViewDual, (void**) ppIShellFolderViewDual);
			pDoc->Release();
		}

		pIWebBrowserApp->Release();
	}
	FreeLibrary(ghSHDOCVW);

	return TRUE;
}

BOOL OpenFolderAndSelectItems(ITEMIDLIST *pidlFolder)
{
	ITEMIDLIST *pidl, *pidl2;
	ITEMIDLIST* pIdlFile;
	USHORT cb;
	IShellFolderViewDual* pIShellFolderViewDual;

	HRESULT (WINAPI *gpfSHOpenFolderAndSelectItems)(LPCITEMIDLIST *pidlFolder, UINT cidl, LPCITEMIDLIST *apidl, DWORD dwFlags);
	HINSTANCE ghShell32;

	/// 只有WinXp及以上及系统才支持SHOpenFolderAndSelectItems() API
	/// 那其它系统该怎么实现这个功能呢？只能采用其它的方法来处理
	/// 首先用XP跟踪到SHOpenFolderAndSelectItems()API中，看它是如何处理的，再用同样的方法去实现
	/// 其它系统的这个功能使用工具 VC6 .net 2003 MSDN Ollydbg v1.10中文版

	ghShell32 = LoadLibrary(_T("Shell32.DLL"));
	if (ghShell32 == NULL)
		return FALSE;

	gpfSHOpenFolderAndSelectItems =
		(HRESULT (WINAPI*)(LPCITEMIDLIST*, UINT, LPCITEMIDLIST*, DWORD)) GetProcAddress(ghShell32, "SHOpenFolderAndSelectItems");
	if (gpfSHOpenFolderAndSelectItems != NULL)
	{
		/// 可以获得SHOpenFolderAndSelectItems()函数的API地址
		if (SUCCEEDED(gpfSHOpenFolderAndSelectItems((LPCITEMIDLIST*)pidlFolder,0,(LPCITEMIDLIST*)NULL,0)))
		{
			///直接调用系统的功能
			FreeLibrary(ghShell32);
			return TRUE;
		}
		FreeLibrary(ghShell32);
		return FALSE;
	}
	FreeLibrary(ghShell32);

	/// 当操作系统不支持SHOpenFolderAndSelectItems()函数的API时的处理，
	/// 自已动手写一个与系统功能相同的代码
	pidl = pidlFolder;
	pIdlFile = pidl;
	/// 找出目标文件中文件名的偏移量
	while (cb = pIdlFile->mkid.cb)
	{
		pidl2 = pIdlFile;
		pIdlFile = (ITEMIDLIST*)((BYTE*)pIdlFile + cb);
	}

	cb = pidl2->mkid.cb;
	pidl2->mkid.cb = 0;

	/// 打开目标文件所在的文件夹
	if (SUCCEEDED(GetShellFolderViewDual(pidl, &pIShellFolderViewDual)))
	{
		pidl2->mkid.cb = cb;
		// 0 Deselect the item.
		// 1 Select the item.
		// 3 Put the item in edit mode.
		// 4 Deselect all but the specified item.
		// 8 Ensure the item is displayed in the view.
		// 0x10 Give the item the focus.
		COleVariant bszFile(pidl2);
		if(pIShellFolderViewDual != NULL)
		{
			/// 选中相应的选项
			pIShellFolderViewDual->SelectItem(bszFile, 0x1d);
			pIShellFolderViewDual->Release();
		}
		return TRUE;
	}
	return FALSE;
}

void FindTarget(CString str)
{
	HRESULT hres;
	IShellLink *psl;
	ITEMIDLIST *pidl;
	IPersistFile *ppf;

	// Get a pointer to the IShellLink interface.
	hres = CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER,
		IID_IShellLink, (LPVOID*)&psl);
	if (SUCCEEDED(hres))
	{
		// 设置目标文件
		psl->SetPath(str);
		/// 获得目标文件的ITEMIDLIST
		psl->GetIDList(&pidl);

		// Get a pointer to the IPersistFile interface.
		hres = psl->QueryInterface(IID_IPersistFile, (void**)&ppf);
		if (SUCCEEDED(hres))
		{
			WCHAR wsz[MAX_PATH];
#ifdef _UNICODE
			wcscpy(wsz, str);
#else
			// Ensure that the string is Unicode.
			MultiByteToWideChar(CP_ACP, 0, str, -1, wsz, MAX_PATH);
#endif

			// Load the shortcut.
			hres = ppf->Load(wsz, STGM_READ);
			if (SUCCEEDED(hres))
			{
				/// 获得快捷方式的ITEMIDLIST
				psl->GetIDList(&pidl);
			}
			ppf->Release();
		}

		/// 打开文件夹并选中项目
		OpenFolderAndSelectItems(pidl);
		psl->Release();
	}
}

[hosin]

很好，Mark一下。

[闪破风浪]

收藏～

[CathySun118]

http://support.microsoft.com/kb/130510

[菜牛]

SHOpenFolderAndSelectItems Function