C# 如何使自己的程序在“显示桌面”时不最小化

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace WS
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

[DllImport("user32.dll", EntryPoint = "SetParent")]
public static extern int SetParent(int hWndChild, int hWndNewParent);
[DllImport("user32.dll", EntryPoint = "FindWindow")]
public static extern int FindWindow(string lpClassName, string lpWindowName);

private void Form1_Load(object sender, EventArgs e)
{
SetParent(this.Handle.ToInt32(), FindWindow("Progman", "Program Manager"));
}
}
}