這個問題來自論壇提問
Q:當我登入進入主介面時,在規定的時間內沒有做任何操作,系統就登出(就像電腦的屏保)。
A: 其實很簡單,參考一個api函數就可以了:GetLastInputInfo,以下是參考代碼
示範程式在你10秒內沒有任何滑鼠鍵盤活動既最小化,最小化後晃動滑鼠即可複原
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 WindowsApplication28...{ public partial class Form1 : Form ...{ [StructLayout(LayoutKind.Sequential)] public struct LASTINPUTINFO ...{ [MarshalAs(UnmanagedType.U4)] public int cbSize; [MarshalAs(UnmanagedType.U4)] public uint dwTime; } [DllImport("user32.dll")] public static extern bool GetLastInputInfo(ref LASTINPUTINFO plii); public long getIdleTick() ...{ LASTINPUTINFO vLastInputInfo = new LASTINPUTINFO(); vLastInputInfo.cbSize = Marshal.SizeOf(vLastInputInfo); if (!GetLastInputInfo(ref vLastInputInfo)) return 0; return Environment.TickCount - (long)vLastInputInfo.dwTime; } public Form1() ...{ InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) ...{ this.timer1.Interval = 2000; this.timer1.Enabled = true; } private void timer1_Tick(object sender, EventArgs e) ...{ long i = getIdleTick(); this.Text = string.Format("jinjazz說:您已經{0}ms沒有動了",i); if (i > 10 * 1000) ...{ this.WindowState = FormWindowState.Minimized; } else ...{ this.WindowState = FormWindowState.Normal; } } }}