public async Task RequestStart()
{
LASTINPUTINFO lastInPut = new LASTINPUTINFO();
lastInPut.cbSize = (uint)Marshal.SizeOf(lastInPut);
State = IdleDetectorState.Running;
while (!cancelRequested)
{
try
{
GetLastInputInfo(ref lastInPut);
}
catch
{
EnableRaisingEvents = false;
break;
}
IdleDuration = (Environment.TickCount - lastInPut.dwTime) / 1000;
if (EnableRaisingEvents && (IsSystemIdle() != previousSystemInputIdle))
{
previousSystemInputIdle = IsSystemIdle();
IdleStateChanged?.Invoke(null, null);
}
await Task.Delay(UpdateInterval);
}
cancelRequested = false;
State = IdleDetectorState.Stopped;
}
protected void RaiseIdleStateChanged(IdleStateEventArgs eventArgs)
{
IdleStateChanged?.Invoke(this, eventArgs);
}