Question

当我右键单击lnk文件 - 链接到命名空间扩展中的虚拟文件夹时 - 然后调用CreateViewObject实现的函数GetUiObjectOf和/或IShellFolder/IShellFolder2。使用IID_IContextMenu作为参数(riid)调用这些函数。同样，当调用QueryContextMenu时，设置标志CMF_VERBSONLY (0x00000002)。这意味着1）我知道应该显示一个菜单，2）由于标志CMF_VERBSONLY，该菜单由.lnk文件和（源Microsoft）查询：

0x00000002。快捷菜单是快捷菜单（通常是a .lnk文件）。快捷菜单处理程序应忽略此值。

大多数情况下，当此标志存在时，我不会添加菜单项。右键单击.lnk文件，然后Windows将返回.lnk文件的标准菜单，并提供删除此文件的机会。我有同样的机会在Windows 7上的收藏夹文件夹。自Windows 10和＆＃34;介绍＆＃34;快速访问它是不可能的。不＃34;取消固定＆＃34;菜单项将默认显示。

由于命名空间扩展非常困难，假设IID_IContextMenu和CMF_VERBSONLY知道对象是否在快速访问中固定以及如何取消固定 - 我可能必须打开自动跳转列表文件夹，然后检查所有跳转列表文件对我的对象displayname - ，我想知道是否有一种更简单的方法来处理这个（在最后的跳转列表是lnk文件的串联）。

感谢您的帮助

Answer 1

感谢Simon Mourier的提示，这里有一种方法可以检查文件夹（任何类型）是否可以快速访问...

extern bool __cdecl IsInQuickAccess(LPWSTR folderParsingName)
{
    IShellFolder* desktopFolder;
    HRESULT hr = SHGetDesktopFolder(&desktopFolder);
    bool isInQuickAccess = false;

    if (SUCCEEDED(hr))
    {
        LPITEMIDLIST quickAccessIdList;
        hr = desktopFolder->ParseDisplayName(NULL, NULL, _T("shell:::{679f85cb-0220-4080-b29b-5540cc05aab6}"), NULL, &quickAccessIdList, NULL);

        if (SUCCEEDED(hr))
        {
            IShellFolder* quickAccessFolder;
            hr = desktopFolder->BindToObject(quickAccessIdList, NULL, IID_PPV_ARGS(&quickAccessFolder));

            if (SUCCEEDED(hr))
            {
                IEnumIDList* currentChildren = NULL;
                hr = quickAccessFolder->EnumObjects(NULL, SHCONTF_FOLDERS, &currentChildren);

                if (SUCCEEDED(hr))
                {
                    CString wPathToFolder = CharLower(folderParsingName);
                    LPITEMIDLIST childPidl = NULL;

                    while (!isInQuickAccess && currentChildren->Next(1, &childPidl, NULL) == S_OK)
                    {
                        STRRET childDisplayName;
                        hr = quickAccessFolder->GetDisplayNameOf(childPidl, SHGDN_FORPARSING, &childDisplayName);

                        if (SUCCEEDED(hr))
                        {
                            LPWSTR childDisplayNameString;
                            hr = StrRetToStr(&childDisplayName, NULL, &childDisplayNameString);

                            if (SUCCEEDED(hr))
                            {
                                LPWSTR childDisplayNameStringToLower = CharLower(childDisplayNameString);

                                if (wPathToFolder.Compare(childDisplayNameStringToLower) == 0)
                                    isInQuickAccess = true;

                                CoTaskMemFree(childDisplayNameString);
                            }
                        }
                    }

                    CoTaskMemFree(childPidl);
                    currentChildren->Release();
                }
                quickAccessFolder->Release();
            }
            CoTaskMemFree(quickAccessIdList);
        }
        desktopFolder->Release();
    }
    return isInQuickAccess;
}

并在此处从主页取消固定（检查具有给定显示名称的文件夹是否可以快速访问）。

extern void __cdecl UnpinFromHome(LPWSTR folderParsingName)
{
    IShellFolder* desktopFolder;
    HRESULT hr = SHGetDesktopFolder(&desktopFolder);

    if (SUCCEEDED(hr))
    {
        LPITEMIDLIST quickAccessIdList;
        hr = desktopFolder->ParseDisplayName(NULL, NULL, _T("shell:::{679f85cb-0220-4080-b29b-5540cc05aab6}"), NULL, &quickAccessIdList, NULL);

        if (SUCCEEDED(hr))
        {
            IShellFolder* quickAccessFolder;
            hr = desktopFolder->BindToObject(quickAccessIdList, NULL, IID_PPV_ARGS(&quickAccessFolder));

            if (SUCCEEDED(hr))
            {
                IEnumIDList* currentChildren = NULL;
                hr = quickAccessFolder->EnumObjects(NULL, SHCONTF_FOLDERS, &currentChildren);

                if (SUCCEEDED(hr))
                {
                    CString wPathToFolder = CharLower(folderParsingName);
                    LPITEMIDLIST childPidl = NULL;
                    bool isInQuickAccess = false;

                    while (!isInQuickAccess && currentChildren->Next(1, &childPidl, NULL) == S_OK)
                    {
                        STRRET childDisplayName;
                        hr = quickAccessFolder->GetDisplayNameOf(childPidl, SHGDN_FORPARSING, &childDisplayName);

                        if (SUCCEEDED(hr))
                        {
                            LPWSTR childDisplayNameString;
                            hr = StrRetToStr(&childDisplayName, NULL, &childDisplayNameString);

                            if (SUCCEEDED(hr))
                            {
                                LPWSTR childDisplayNameStringToLower = CharLower(childDisplayNameString);

                                if (wPathToFolder.Compare(childDisplayNameStringToLower) == 0)
                                {
                                    IContextMenu* childContextMenu;
                                    LPCITEMIDLIST childCPidl = childPidl;
                                    hr = quickAccessFolder->GetUIObjectOf(NULL, 1, &childCPidl, IID_IContextMenu, NULL, (void**)&childContextMenu);

                                    if (SUCCEEDED(hr))
                                    {
                                        HMENU hmenu = CreatePopupMenu();
                                        if (hmenu)
                                        {
                                            hr = childContextMenu->QueryContextMenu(hmenu, 0, 1, 0x7FFF, CMF_NORMAL);
                                            if (SUCCEEDED(hr))
                                            {
                                                CMINVOKECOMMANDINFO info = { 0 };
                                                info.cbSize = sizeof(info);
                                                info.hwnd = NULL;
                                                info.lpVerb = "unpinfromhome";
                                                info.nShow = 1;
                                                info.fMask = CMIC_MASK_ASYNCOK;
                                                childContextMenu->InvokeCommand(&info);
                                            }
                                            DestroyMenu(hmenu);
                                        }

                                    }
                                    isInQuickAccess = true;
                                }
                                CoTaskMemFree(childDisplayNameString);
                            }
                        }
                    }
                    CoTaskMemFree(childPidl);
                    currentChildren->Release();
                }
                quickAccessFolder->Release();
            }
            CoTaskMemFree(quickAccessIdList);
        }
        desktopFolder->Release();
    }
}

快速访问和命名空间扩展：取消固定对象

1 个答案: