0

我正在尝试以编程方式显示文件的 shell 上下文菜单(与我在资源管理器中右键单击该文件时相同)。我已经设法为单个文件/文件夹做到这一点,我的代码如下。现在,我如何调用文件列表的上下文菜单,就好像我在资源管理器中选择了一对并单击它们一样?

bool openShellContextMenuForObject(const std::wstring &path, int xPos, int yPos, void * parentWindow)
{
    assert (parentWindow);
    ITEMIDLIST * id = 0;
    std::wstring windowsPath = path;
    std::replace(windowsPath.begin(), windowsPath.end(), '/', '\\');
    HRESULT result = SHParseDisplayName(windowsPath.c_str(), 0, &id, 0, 0);
    if (!SUCCEEDED(result) || !id)
        return false;
    CItemIdListReleaser idReleaser (id);

    IShellFolder * ifolder = 0;

    LPCITEMIDLIST idChild = 0;
    result = SHBindToParent(id, IID_IShellFolder, (void**)&ifolder, &idChild);
    if (!SUCCEEDED(result) || !ifolder)
        return false;
    CComInterfaceReleaser ifolderReleaser (ifolder);

    IContextMenu * imenu = 0;
    result = ifolder->GetUIObjectOf((HWND)parentWindow, 1, (const ITEMIDLIST **)&idChild, IID_IContextMenu, 0, (void**)&imenu);
    if (!SUCCEEDED(result) || !ifolder)
        return false;
    CComInterfaceReleaser menuReleaser(imenu);

    HMENU hMenu = CreatePopupMenu();
    if (!hMenu)
        return false;
    if (SUCCEEDED(imenu->QueryContextMenu(hMenu, 0, 1, 0x7FFF, CMF_NORMAL)))
    {
        int iCmd = TrackPopupMenuEx(hMenu, TPM_RETURNCMD, xPos, yPos, (HWND)parentWindow, NULL);
        if (iCmd > 0)
        {
            CMINVOKECOMMANDINFOEX info = { 0 };
            info.cbSize = sizeof(info);
            info.fMask = CMIC_MASK_UNICODE;
            info.hwnd = (HWND)parentWindow;
            info.lpVerb  = MAKEINTRESOURCEA(iCmd - 1);
            info.lpVerbW = MAKEINTRESOURCEW(iCmd - 1);
            info.nShow = SW_SHOWNORMAL;
            imenu->InvokeCommand((LPCMINVOKECOMMANDINFO)&info);
        }
    }
    DestroyMenu(hMenu);

    return true;
}
4

1 回答 1

2
result = ifolder->GetUIObjectOf((HWND)parentWindow, 1, (const ITEMIDLIST **)&idChild, IID_IContextMenu, 0, (void**)&imenu);

GetUIObjectOf函数接受一个PIDL数组。该1函数调用中的 表示您的数组仅包含一项,但您可以使用相同的方法传递任意数量的子 PIDL。例如:

LPITEMIDLIST pidlArray[3] = { pidl1, pidl2, pidl3 };
result = ifolder->GetUIObjectOf((HWND)parentWindow, _countof(pidlArray), pidlArray, IID_IContextMenu, 0, (void**)&imenu);

(在现实世界中,您将动态构建数组)。请注意,所有项目都必须是同一父文件夹的子项。

于 2013-08-10T09:21:54.223 回答