可靠地使WPF应用程序全屏(封面任务栏)

using System;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Interop;

namespace WpfApp
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            Loaded += MainWindow_Loaded;
        }

        private void MainWindow_Loaded(object sender, RoutedEventArgs e)
        {
            // 设置窗口样式为无边框
            WindowStyle = WindowStyle.None;
            // 设置窗口状态为最大化
            WindowState = WindowState.Maximized;
            // 隐藏任务栏
            HideTaskbar();
        }

        private void HideTaskbar()
        {
            var handle = new WindowInteropHelper(this).Handle;
            var taskbarHandle = FindWindow("Shell_TrayWnd", "");
            var appBarHandle = FindWindow("AppBarWindow32", "");

            var data = new APPBARDATA();
            data.cbSize = (uint)Marshal.SizeOf(data);
            data.hWnd = appBarHandle;

            // 设置任务栏自动隐藏
            SHAppBarMessage(ABM_SETSTATE, ref data);

            // 调整窗口位置和大小，覆盖任务栏
            SetWindowPos(handle, IntPtr.Zero, 0, 0, (int)SystemParameters.PrimaryScreenWidth, (int)SystemParameters.PrimaryScreenHeight, SWP_SHOWWINDOW);
        }

        // 导入Windows API函数
        [DllImport("user32.dll", SetLastError = true)]
        private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

        [DllImport("shell32.dll", SetLastError = true)]
        private static extern uint SHAppBarMessage(int dwMessage, ref APPBARDATA pData);

        [DllImport("user32.dll", SetLastError = true)]
        private static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);

        // 定义APPBARDATA结构体
        [StructLayout(LayoutKind.Sequential)]
        private struct APPBARDATA
        {
            public uint cbSize;
            public IntPtr hWnd;
            public uint uCallbackMessage;
            public uint uEdge;
            public RECT rc;
            public int lParam;
        }

        // 定义RECT结构体
        [StructLayout(LayoutKind.Sequential)]
        private struct RECT
        {
            public int Left;
            public int Top;
            public int Right;
            public int Bottom;
        }

        // 定义常量
        private const int ABM_SETSTATE = 0x0000000a;
        private const uint SWP_SHOWWINDOW = 0x0040;
    }
}