[转帖]调用explore打开指定文件所在的文件夹，并把目标文件设为选定状态，甚至.lnk文件也能自动找到它的目标执行程序文件。

添加自定义的三个全局函数GetShellFolderViewDual、XZSHOpenFolderAndSelectItems和FindTarget，注意它们的先后顺序，用的时候使用如下方式就行了：
--------------------------------------------
CString strFileName="c://readme.txt";
FindTarget(strFileName);
--------------------------------------------

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;

/// 调用未公开的API函数 SHGetIDispatchForFolder
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 XZSHOpenFolderAndSelectItems(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

//显式链接Shell32.dll
ghShell32 = LoadLibrary(_T("Shell32.DLL"));
if (ghShell32 == NULL)
return FALSE;
//从Shell32.dll中找到SHOpenFolderAndSelectItems函数的地址
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

pIdlFile = pidl= pidlFolder;
/// 找出目标文件的偏移量
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;
//用下面这个函数先初始化COM库，并把当前线程设为单线程模式(single-thread apartment(STA))，以便后面使用COM库函数
CoInitialize(NULL);

//获得IShellLink接口的指针，放在psl中
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);

//获得IPersistFile接口的指针，放在ppf中
hres = psl->QueryInterface(IID_IPersistFile, (void**)&ppf);
if (SUCCEEDED(hres))
{
WCHAR wsz[MAX_PATH]; // <=========下面三行代码完成字符串转为Unicode
#ifdef _UNICODE
wcscpy(wsz, str);
#else
//把字符串转为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
XZSHOpenFolderAndSelectItems(pidl);

psl->Release();
}
CoUninitialize();
}

原文地址：

http://blog.csdn.net/Snow_Ice11111/archive/2006/02/11/596489.aspx