WPF 秒表 计时器 定时关机 到计时关机 public const uint WM_SYSCOMMAND = 0x0112; public const uint SC_MONITORPOWER = 0xF170; [DllImport("user32")] public static extern IntPtr SendMessage(IntPtr hWnd, uint wMsg, uint wParam, int lParam); /// /// 关闭显示器 /// public void CloseScreen() { IntPtr windowHandle = Process.GetCurrentProcess().MainWindowHandle; SendMessage(windowHandle, WM_SYSCOMMAND, SC_MONITORPOWER, 2); // 2 为关 闭显示器， －1则打开显示器 } using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Windows; using System.Windows.Controls; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Imaging; using System.Windows.Navigation; using System.Windows.Shapes; using System.Windows.Threading; using IniFiles; namespace StopWatch { /// /// shutdonwCtrl.xaml 的交互逻辑 /// public partial class shutdonwCtrl : UserControl { DispatcherTimer timer1; DispatcherTimer timer2; public shutdonwCtrl() { InitializeComponent(); timer1 = new DispatcherTimer(); timer1.Tick += new EventHandler(OnTimer1); timer1.Interval = new TimeSpan(0, 0, 1); timer2 = new DispatcherTimer(); timer2.Tick += new EventHandler(OnTimer2); timer2.Interval = new TimeSpan(0, 0, 1); btn_cancel.IsEnabled = false; cancel1.IsEnabled = false; } IniFile INI = new IniFile(IniFile.AppIniName); public void LoadIni() { cbo_hour.Text = INI.ReadString("定时关机", "时", "0"); cbo_Minute.Text = INI.ReadString("定时关机", "分", "0"); cbo_Second.Text = INI.ReadString("定时关机", "秒", "0"); cbo1.Text = INI.ReadString("到计时关机", "分", "0"); //combobox1.Text = INI.ReadString("到计时", "时", "0"); //combobox2.Text = INI.ReadString("到计时", "分", "0"); //combobox3.Text = INI.ReadString("到计时", "秒", "0"); } public void SaveIni() { INI.WriteString("定时关机", "时", cbo_hour.Text); INI.WriteString("定时关机", "分", cbo_Minute.Text); INI.WriteString("定时关机", "秒", cbo_Second.Text); INI.WriteString("到计时关机", "分", cbo1.Text); } private void ShutDown() { System.Diagnostics.Process.Start("shutdown.exe", "-s -t 1"); } private void OnTimer1(object sender,EventArgs e) { if (second > 0) second--; label1.Content = string.Format("Windows将在 {0} 关机", TimerClass.GetTimeString1(second)); if (second 0) { counter++; listbox1.Items.Add(string.Format(" {0}\t{1}", counter, label2.Content)); } second1 = 0; label2.Content = "00:00:00"; } if (btn_reset.Content.ToString() == "复位" && btn_start.Content.ToString()=="开始") { listbox1.Items.Clear(); } } } }