如何在WPF中删除窗口边框？

// 引入外部方法
[DllImport("user32.dll")]
public static extern int SetWindowLong(IntPtr hwnd, int index, int value);

// 获取窗口句柄
[DllImport("user32.dll")]
public static extern IntPtr GetWindowHandle(Visual visual);

// 窗口边框常量
private const int GWL_STYLE = -16;
private const int WS_BORDER = 0x00800000;

// 删除窗口边框
private void RemoveWindowBorder()
{
    IntPtr hwnd = GetWindowHandle(this);
    SetWindowLong(hwnd, GWL_STYLE, WS_BORDER);
}

private void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
    RemoveWindowBorder();
}