private Mutex mutex; // single instance mutex
//========================================================================================
// Constructor
//========================================================================================
public App()
: base()
{
// for development, explicitly override workstation UI culture
OverrideUICulture();
// given the /u parameter, we must uninstall the app
CheckUninstall();
// verify that iTunes is installed, otherwise there's no point, is there?
EnsureiTunesInstalled();
// allow only a single instance to run at a time
try
{
mutex = Mutex.OpenExisting(Resx.I_SingletonID);
// successfully opened existing mutex... another instance of iTuner is already
// running, so check if iTunes is also running; if it is then assume we're a
// duplicate and politely kill overselves. otherwise, if iTunes is not running
// assume that the other instance has gone rogue and needs to be assassinated!
if (iTunesRunning())
{
MessageBox.Show(
String.Format(CultureInfo.CurrentCulture,
Resx.SingletonMessage, Resx.I_ApplicationTitle),
Resx.I_ApplicationTitle,
MessageBoxButton.OK, MessageBoxImage.Information);
Application.Current.Shutdown();
return;
}
else
{
StopiTuner();
mutex = new Mutex(true, Resx.I_SingletonID);
}
}
catch (WaitHandleCannotBeOpenedException)
{
mutex = new Mutex(true, Resx.I_SingletonID);
}
// passed the singleton test... wire up exception handling
this.DispatcherUnhandledException +=
new DispatcherUnhandledExceptionEventHandler(CatchUnhandledUIExceptions);
AppDomain.CurrentDomain.UnhandledException +=
new UnhandledExceptionEventHandler(CatchUnhandledBackgroundExceptions);
UpgradeHelper.CheckUpgrades(this.Dispatcher);
}
private void DoClickUpgrade(object sender, RoutedEventArgs e)
{
UpgradeHelper.CheckUpgrades(this.Dispatcher, true);
}