从 C# WPF 中隐藏桌面图标

Posted 2023-02-22

【中文标题】从 C# WPF 中隐藏桌面图标

【英文标题】：Hide desktop icons from C# WPF

【发布时间】：2015-09-09 06:09:05

【问题描述】：

我需要一个使用 C# WPF 以编程方式显示/隐藏桌面图标的解决方案 现在一种可能的方法是更改​​此注册表值：

HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced

HideIcons = 1

但要使其生效，我需要重新启动 Explorer.exe，这不是一个选项。 因为我的程序在桌面背景上运行。并杀死资源管理器会杀死程序，我已经重新启动它。

我也试过这个： *** Link 但它不适用于 Windows 10

那么，还有其他方法吗？请帮忙！

【参考方案1】：

创建类库在其中添加此代码 并添加命名空间 System.Runtime.InteropServices

    [DllImport("user32.dll", SetLastError = true)]
    static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
    [DllImport("user32.dll", SetLastError = true)]
    static extern IntPtr GetWindow(IntPtr hWnd, GetWindow_Cmd uCmd);
    enum GetWindow_Cmd : uint
    
        GW_HWNDFIRST = 0,
        GW_HWNDLAST = 1,
        GW_HWNDNEXT = 2,
        GW_HWNDPREV = 3,
        GW_OWNER = 4,
        GW_CHILD = 5,
        GW_ENABLEDPOPUP = 6
    
    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    static extern IntPtr SendMessage(IntPtr hWnd, UInt32 Msg, IntPtr wParam, IntPtr lParam);

    private const int WM_COMMAND = 0x111;

   public static void ToggleDesktopIcons()
    
        var toggleDesktopCommand = new IntPtr(0x7402);
        IntPtr hWnd = GetWindow(FindWindow("Progman", "Program Manager"), GetWindow_Cmd.GW_CHILD);
        SendMessage(hWnd, WM_COMMAND, toggleDesktopCommand, IntPtr.Zero);
    

    [return: MarshalAs(UnmanagedType.Bool)]
    [DllImport("user32.dll", SetLastError = true)]
    private static extern bool GetWindowInfo(IntPtr hwnd, ref WINDOWINFO pwi);

    [StructLayout(LayoutKind.Sequential)]
    public struct RECT
    
        private int _Left;
        private int _Top;
        private int _Right;
        private int _Bottom;
    

    [StructLayout(LayoutKind.Sequential)]
    struct WINDOWINFO
    
        public uint cbSize;
        public RECT rcWindow;
        public RECT rcClient;
        public uint dwStyle;
        public uint dwExStyle;
        public uint dwWindowStatus;
        public uint cxWindowBorders;
        public uint cyWindowBorders;
        public ushort atomWindowType;
        public ushort wCreatorVersion;

        public WINDOWINFO(Boolean? filler)
            : this()   // Allows automatic initialization of "cbSize" with "new WINDOWINFO(null/true/false)".
        
            cbSize = (UInt32)(Marshal.SizeOf(typeof(WINDOWINFO)));
        

    

   public static bool IsVisible()
    
        IntPtr hWnd = GetWindow(GetWindow(FindWindow("Progman", "Program Manager"), GetWindow_Cmd.GW_CHILD), GetWindow_Cmd.GW_CHILD);
        WINDOWINFO info = new WINDOWINFO();
        info.cbSize = (uint)Marshal.SizeOf(info);
        GetWindowInfo(hWnd, ref info);
        return (info.dwStyle & 0x10000000) == 0x10000000;

    

将此 dll 引用添加到您的项目中。 并调用 dllClass_name.ToggleDesktopIcon();

【讨论】：

不。当我调用该函数时，什么也没有发生。

不。不工作。我之前尝试过，即使是现在，也无法正常工作。