// Internal helper method that checks to see if any
// objects are subscribed to the event. If any are,
// their event handler method will be called through
// the multicast delegate.
private void RaiseAlarmEvent()
{
// Make sure to check that there is at least one subscriber!
if (OnTimerExpired != null)
{
// Note that before the event fires, an object of
// type TimerEventArgs is created. Then, when the
// event is fired, the TimerEventArgs object is
// passed along with the sender.
TimerEventArgs t = new TimerEventArgs();
OnTimerExpired(this, t);
}
}
private void DisplayAlarmMessage(object sender, TimerEventArgs e)
{
// Save the current color of the characters.
ConsoleColor originalForeGroundColor = Console.ForegroundColor;
// Change the color of the characters to Red.
Console.ForegroundColor = ConsoleColor.Red;
for (int i = 0; i < 5; i++)
{
Console.WriteLine("\n{0}: WAKE UP!!!!!!!!!!!",
e.AlarmTime);
Console.Beep(5000, 500);
System.Threading.Thread.Sleep(1000);
}
// Reset the color of the characters to their original color.
Console.ForegroundColor = originalForeGroundColor;
}
internal void ShowMessage(object sender, TimerEventArgs e)
{
// Save the current color of the characters.
ConsoleColor originalForeGroundColor = Console.ForegroundColor;
// Change the color of the characters to Magenta.
Console.ForegroundColor = ConsoleColor.Magenta;
for (int i = 0; i < 3; i++)
{
Console.WriteLine("\n{0}: This is your wakeup call.",
e.AlarmTime);
Console.Beep(3500, 400);
System.Threading.Thread.Sleep(750);
}
// Reset the color of the characters to their original color.
Console.ForegroundColor = originalForeGroundColor;
}
