当眼睛闭上一段时间后，我必须在事件上启动计时器。如果计时器到时，屏幕会关闭。如果在计时器过去之前眼睛睁开，计时器会停止并且屏幕会打开。
计算计时器（）；监控眼睛是否睁开/闭上。这很好，因为我在控制台中得到了正确的反馈。
private void ComputationOfTimer()
{
if (blink[0] == 100) //If eye Closed detected
{
ctrlTimerStop = 3;
ctrlTimerStart = ctrlTimerStart - 1;
System.Console.Write("\n\t Eyes Closed");
timerStarting();
}
else //If eyes are open before timer is elapsed
//we have to stop timer
{
ctrlTimerStart = 5;
ctrlTimerStop -= 1;
//System.Console.Write("\n\t\t\t\t\t Opened");
timerStopping();
}
}
timerStarting() 启动定时器
public void timerStarting()
{
if (ctrlTimerStart == 0)
{
screenOffTimer.Interval = 3000;
screenOffTimer.Elapsed += screenOffTimer_Tick_ScreenOff;
screenOffTimer.AutoReset=false;
if (!screenOffTimer.Enabled) //Starts timer only once
{
screenOffTimer.Enabled = true;
System.Console.Write("Timer Chaloo Hai");
}
}
}
关屏和休眠的逻辑
void screenOffTimer_Tick_ScreenOff(object sender, EventArgs e)
{
System.Console.Write("Eyes Closed For long time bro!");
Beep(440, 1000); // Concert A, for 1 second
SendMessage(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, MONITOR_OFF);
//as eyes are still closed send pc to Sleep start one more timer
gotoSleepTimer.Interval = 10000;
gotoSleepTimer.Elapsed += gotoSleepTimer_Tick_SleepOff;
gotoSleepTimer.AutoReset = false;
if (!gotoSleepTimer.Enabled)
{
gotoSleepTimer.Start();
}
}
void gotoSleepTimer_Tick_SleepOff(object sender, EventArgs e)
{
System.Console.Write("So rahe hain bhai ab");
Beep(440, 2000); // Concert A, for 1 second
System.Windows.Forms.Application.SetSuspendState(PowerState.Suspend, false, false);
}
计时器停止（）；如果较早睁开眼睛，则停止计时器
public void timerStopping() //To stop timer when Eyes Open
{
if (ctrlTimerStop == 0)
{
//to do timer stop logic
if (screenOffTimer.Enabled)
{
screenOffTimer.Stop();
System.Console.Write("Timer Band Ho Gaya");
}
//System.Windows.MessageBox.Show("Timer Stopped");
SendMessage(HWND_BROADCAST, WM_SYSCOMMAND, SC_MONITORPOWER, MONITOR_ON);
if (gotoSleepTimer.Enabled)
{
gotoSleepTimer.Stop();
}
}
}
即使经过时间，计时器也不会触发。我之前尝试过 DispatcherTimer，但那是为了更新 WPF UI，我有不同的目标。
声明部分：
System.Timers.Timer screenOffTimer = new System.Timers.Timer();
System.Timers.Timer gotoSleepTimer = new System.Timers.Timer();