键盘鼠标空闲_如何锁定键盘鼠标

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using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.Runtime.InteropServices;

namespace WindowsApplication2

{

public partial cla Form1 : Form

{

public Form1()

{

InitializeComponent();

}

private void Form1_Load(object sender, EventArgs e)

{

timer1.Enabled = true;

timer2.Enabled = true;

}

[StructLayout(LayoutKind.Sequential)]

struct LASTINPUTINFO

{

[MarshalAs(UnmanagedType.U4)]

public int cbSize;

[MarshalAs(UnmanagedType.U4)]

public uint dwTime;

}

[DllImport(“user32.dll”)]

static extern bool GetLastInputInfo(ref LASTINPUTINFO plii);

static long GetLastInputTime()

{

LASTINPUTINFO vLastInputInfo = new LASTINPUTINFO();

vLastInputInfo.cbSize = Marshal.SizeOf(vLastInputInfo);if(!GetLastInputInfo(ref vLastInputInfo))return 0;

return Environment.TickCount-(long)vLastInputInfo.dwTime;

}

private void timer1_Tick(object sender, EventArgs e){

if(GetLastInputTime()/1000+“”==“5”){

//此处可填写你需要的功能

MeageBox.Show(“任务执行”);

}

}

private void timer2_Tick(object sender, EventArgs e){

this.label1.Text =string.Format(“用户已经{0}秒没有路过了”, GetLastInputTime()/ 1000);

}

}

}