C# 检测操作系统是否空闲,实现系统空闲后做一些操作

     public class CheckComputerFreeState
{
/// <summary> /// 创建结构体用于返回捕获时间 /// </summary> [StructLayout(LayoutKind.Sequential)] struct LASTINPUTINFO { /// <summary> /// 设置结构体块容量 /// </summary> [MarshalAs(UnmanagedType.U4)] public int cbSize; /// <summary> /// 抓获的时间 /// </summary> [MarshalAs(UnmanagedType.U4)] public uint dwTime; } [DllImport("user32.dll")] private static extern bool GetLastInputInfo(ref LASTINPUTINFO plii); /// <summary> /// 获取键盘和鼠标没有操作的时间 /// </summary> /// <returns>用户上次使用系统到现在的时间间隔,单位为秒</returns> public static long GetLastInputTime() { LASTINPUTINFO vLastInputInfo = new LASTINPUTINFO(); vLastInputInfo.cbSize = Marshal.SizeOf(vLastInputInfo); if (!GetLastInputInfo(ref vLastInputInfo)) { return 0; } else { var count = Environment.TickCount - (long)vLastInputInfo.dwTime; var icount = count / 1000; return icount; } } }

调用:

       static void Main(string[] args)
        {
            Timer t = null;
            t = new Timer((o) =>
           {
               var result = GetLastInputTime();
               Console.WriteLine(result);
               if (result < 1*60) return;
               if (t == null) return;
               t.Dispose();
               Console.WriteLine("电脑1分钟未操作!");
           }, null, 1000, 1000);

            Console.ReadLine();
        }

 

posted @ 2015-04-13 09:49  b̶i̶n̶g̶.̶  阅读(1320)  评论(0编辑  收藏  举报