c++ - 如何用 C++ 打开文件夹

Question

我需要打开一个显示特定文件夹的资源管理器窗口，让我说"C:\\Windows"我应该使用什么功能来达到我的目标？我使用的是 Windows，所以可以使用 API，也可以使用 boost，但我不能使用 C++11。

Answer 1

您可以使用该SHOpenFolderAndSelectItems功能来执行此操作，而不是自己强制运行资源管理器（例如，如果用户已将资源管理器替换为其默认文件管理器怎么办？）。

LPCWSTR pszPathToOpen = L"C:\\Windows";
PIDLIST_ABSOLUTE pidl;
if (SUCCEEDED(SHParseDisplayName(pszPathToOpen, 0, &pidl, 0, 0)))
{
    // we don't want to actually select anything in the folder, so we pass an empty
    // PIDL in the array. if you want to select one or more items in the opened
    // folder you'd need to build the PIDL array appropriately
    ITEMIDLIST idNull = { 0 };
    LPCITEMIDLIST pidlNull[1] = { &idNull };
    SHOpenFolderAndSelectItems(pidl, 1, pidlNull, 0);
    ILFree(pidl);
}

或者，您可以直接调用ShellExecute文件夹以运行其默认操作（通常在浏览器窗口中打开）：

ShellExecute(NULL, NULL, L"C:\\Windows", NULL, NULL, SW_SHOWNORMAL);

Answer 2

An hour ago I just wrote similar function.

This function doesn't do 100% as you want, but you can use it to get that you want. It opens explorer window and marks file you are pointing to. Lets say you specified "C:\Windows\System32" in this case you will have "C:\Windows" opened and System32 marked. If you want to go inside you need to use something like FindFirstFile. If directory is empty, my offered solution wouldn't work...

bool ExplorerGoTo (const String &Path)
{
    TCHAR tcBuff[8] = {0};
    lstrcpyn(tcBuff, Path.c_str(), 5);

    String stParams = _T("/n, /select, ");

    if( lstrcmpi(_T("\\??\\"), tcBuff) == 0 )
    {
        stParams += (Path[4]);
    }
    else
    {
        stParams += Path;
    }

    String stExplorer = _T("C:\\Windows\\explorer.exe");

    //ExpandPath(stExplorer);
    if (stExplorer.empty ()) stExplorer = _T("explorer.exe");

    SHELLEXECUTEINFO shi = { 0 };

    shi.cbSize          = sizeof (SHELLEXECUTEINFO);
    shi.lpVerb          = _T("open");
    shi.lpFile          = stExplorer.c_str ();
    shi.lpParameters    = stParams.c_str ();
    shi.nShow           = SW_SHOW;

    bool bRes = ShellExecuteEx( &shi );

    if( bRes == FALSE && GetLastError() != 0 )
    {
        Sleep(200);
        return ShellExecuteEx( &shi );
    }   
    return bRes;
}

And never use system()