/// <summary>
/// Invoked when application execution is being suspended. Application state is saved
/// without knowing whether the application will be terminated or resumed with the contents
/// of memory still intact.
/// </summary>
/// <param name="sender">The source of the suspend request.</param>
/// <param name="e">Details about the suspend request.</param>
private void OnSuspending(object sender, SuspendingEventArgs e)
{
var deferral = e.SuspendingOperation.GetDeferral();
if (arduino != null)
{
arduino.digitalWrite(13, PinState.LOW);
arduino.pinMode(13, PinMode.INPUT); // Onboard LED.
arduino.Dispose();
arduino = null;
}
if (arduinoUsb != null)
{
arduinoUsb.end();
arduinoUsb.Dispose();
arduinoUsb = null;
}
if (gpioPins != null)
{
foreach (KeyValuePair<GpioPin, KeyValuePair<TextBlock, TextBlock>> Pin in gpioPins.Values)
Pin.Key.Dispose();
gpioPins = null;
}
if (this.sampleTimer != null)
{
this.sampleTimer.Dispose();
this.sampleTimer = null;
}
if (this.chatServer != null)
{
this.chatServer.Dispose();
this.chatServer = null;
}
if (this.bobClient != null)
{
this.bobClient.Dispose();
this.bobClient = null;
}
if (this.controlServer != null)
{
this.controlServer.Dispose();
this.controlServer = null;
}
if (this.sensorServer != null)
{
this.sensorServer.Dispose();
this.sensorServer = null;
}
if (this.provisioningClient != null)
{
this.provisioningClient.Dispose();
this.provisioningClient = null;
}
if (this.thingRegistryClient != null)
{
this.thingRegistryClient.Dispose();
this.thingRegistryClient = null;
}
if (this.xmppClient != null)
{
this.xmppClient.Dispose();
this.xmppClient = null;
}
Log.Terminate();
deferral.Complete();
}