操纵桌面图标的位置 [英] Manipulating the positions of desktop icons

问题描述

我目前正在尝试从桌面上检索图标列表，以更改其位置和/或隐藏它们以及显示其他图标。

I am currently trying to retrieve the list of icons from my desktop to change their locations and / or hide them as well as display others.

我试图获取下面代码中的 FolderView ，但是它甚至不显示我在桌面上的图标数量，因为 count 返回 0 。

I tried to get the FolderView in the code below but it doesn't even show the number of icons I have on the desktop because count return 0.

HWND hDesktop = GetDesktopWindow();
HWND hDefView = FindWindowEx(hDesktop, NULL, L"SHELLDLL_DefView", NULL);
HWND folderView = FindWindowEx(hShellWnd, NULL, L"SysListView32", NULL);

int count = (int) SendMessage(folderView, LVM_GETITEMCOUNT, 0, 0);
cout << count << endl;

我对变量进行了测试，并注意到 hDefView 为 NULL 。

可能是 count 返回 0 。

I did tests on the variables and is noticed that hDefView is NULL.
Probably the reason why count return 0.

编辑：将 GetDesktopWindow 替换为 GetShellWindow 结果始终相同， 0

EDIT : After replace GetDesktopWindow by GetShellWindow the result is always the same, 0

推荐答案

Shell窗口层次结构没有记录，也不稳定。 ProgMan通常是 SHELLDLL_DefView的父级，但是如果您更改为幻灯片墙纸，也可以是 WorkerW。

The shell window hierarchy is not documented nor stable. "ProgMan" is usually the parent of "SHELLDLL_DefView" but if you change to slideshow wallpaper it can also be "WorkerW".

使用已记录的外壳COM接口检查/操作桌面： IShellWindows ， IShellBrowser ， IFolderView 和 IShellFolder 。

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