namespace ActivityMonitor{ using System; using System.Runtime.InteropServices; class ActivityMonitor : System.ComponentModel.Component { public void Start() { this.isIdle = false; timer.Elapsed -= Timer_Elapsed; timer.Elapsed += Timer_Elapsed; timer.Interval = this.resolution; timer.Start(); } public void Stop() { timer.Stop(); } public bool IsIdle { get { return this.isIdle; } private set { if (this.isIdle != value) { this.isIdle = value; if (isIdle && OnIdle != null) { OnIdle(this, EventArgs.Empty); } if (!isIdle && OnActive != null) { OnActive(this, EventArgs.Empty); } } } } public int IdleTimeOut { get { return idleTimeOut; } set { idleTimeOut = Math.Max(50, value); } } public int Resolution { get { return resolution; } set { resolution = Math.Max(50, value); } } public event EventHandler OnIdle; public event EventHandler OnActive; private void Timer_Elapsed(object sender, EventArgs e) { LASTINPUTINFO lastInputInfo = new LASTINPUTINFO(); lastInputInfo.size = 8; if (GetLastInputInfo(ref lastInputInfo)) { lastActivity = Math.Max(lastActivity, lastInputInfo.lastTick); int diff = Environment.TickCount - lastActivity; this.IsIdle = diff > this.IdleTimeOut; } } private bool isIdle = false; private int idleTimeOut = 5000; private int resolution = 100; private int lastActivity = Environment.TickCount; private System.Timers.Timer timer = new System.Timers.Timer(); [StructLayout(LayoutKind.Sequential)] private struct LASTINPUTINFO { public int size; public int lastTick; } [DllImport("User32")] private static extern bool GetLastInputInfo(ref LASTINPUTINFO lii); } class UnitTest { static void Main() { ActivityMonitor monitor = new ActivityMonitor(); monitor.IdleTimeOut = 2000; // 2 seconds monitor.OnIdle += delegate { Console.WriteLine("On idle"); }; monitor.OnActive += delegate { Console.WriteLine("On active"); }; monitor.Start(); Console.ReadLine(); } }}
////////////////////////////////
[DllImport("User32.dll")]
private static extern bool GetLastInputInfo(ref LASTINPUTINFO plii);
private struct LASTINPUTINFO
{
public uint cbSize;
public uint dwTime;
}
LASTINPUTINFO lastInPut = new LASTINPUTINFO();
private void timer_Tick(object sender, EventArgs e)
{
//配置时间内无操作锁定
lastInPut.cbSize = (uint)System.Runtime.InteropServices.Marshal.SizeOf(lastInPut);
GetLastInputInfo(ref lastInPut);
long noOperationTime = System.Environment.TickCount - lastInPut.dwTime;
if (noOperationTime > 毫秒时间)
{
//退出程序
}
}