/// <summary>Called when the system is shutting down or the user is logging off.</summary>
/// <param name="args">The arguments of the event.</param>
protected override void OnSystemShutdown(Wix.SystemShutdownEventArgs args)
{
LogVerbose("Enter Method: OnSystemShutdown");
WPFBootstrapperEventArgs <Wix.SystemShutdownEventArgs> cancelArgs = new WPFBootstrapperEventArgs <Wix.SystemShutdownEventArgs>(args);
TryInvoke(new Action(() => { _mainWindow.OnSystemShutdown(cancelArgs); }));
if (!cancelArgs.Cancel)
{
base.OnSystemShutdown(cancelArgs.Arguments);
}
LogVerbose("Leaving Method: OnSystemShutdown");
}
/// <summary>Called when the system is shutting down or the user is logging off.</summary>
/// <param name="args">The arguments of the event.</param>
protected override void OnSystemShutdown(Wix.SystemShutdownEventArgs args)
{
this.LogBootstrapperEnterEvent(args, "SystemShutdown");
WPFBootstrapperEventArgs <Wix.SystemShutdownEventArgs> cancelArgs = new WPFBootstrapperEventArgs <Wix.SystemShutdownEventArgs>(args);
this.TryInvoke(new Action(() => { this.model?.OnSystemShutdown(cancelArgs); }));
if (!cancelArgs.Cancel)
{
base.OnSystemShutdown(cancelArgs.Arguments);
}
this.LogBootstrapperLeaveEvent(null, "SystemShutdown");
}
Result IBootstrapperApplication.OnSystemShutdown(EndSessionReasons dwEndSession, int nRecommendation)
{
SystemShutdownEventArgs args = new SystemShutdownEventArgs(dwEndSession, nRecommendation);
this.OnSystemShutdown(args);
return args.Result;
}
/// <summary>
/// Called when the system is shutting down or the user is logging off.
/// </summary>
/// <param name="args">Additional arguments for this event.</param>
/// <remarks>
/// <para>To prevent shutting down or logging off, set <see cref="ResultEventArgs.Result"/> to
/// <see cref="Result.Cancel"/>; otherwise, set it to <see cref="Result.Ok"/>.</para>
/// <para>By default setup will prevent shutting down or logging off between
/// <see cref="BootstrapperApplication.ApplyBegin"/> and <see cref="BootstrapperApplication.ApplyComplete"/>.
/// Derivatives can change this behavior by overriding <see cref="BootstrapperApplication.OnSystemShutdown"/>
/// or handling <see cref="BootstrapperApplication.SystemShutdown"/>.</para>
/// <para>If <see cref="SystemShutdownEventArgs.Reasons"/> contains <see cref="EndSessionReasons.Critical"/>
/// the bootstrapper cannot prevent the shutdown and only has a few seconds to save state or perform any other
/// critical operations before being closed by the operating system.</para>
/// <para>This method may be called on a different thread.</para>
/// </remarks>
protected virtual void OnSystemShutdown(SystemShutdownEventArgs args)
{
EventHandler<SystemShutdownEventArgs> handler = this.SystemShutdown;
if (null != handler)
{
handler(this, args);
}
else if (null != args)
{
// Allow requests to shut down when critical or not applying.
bool critical = EndSessionReasons.Critical == (EndSessionReasons.Critical & args.Reasons);
args.Result = (critical || !this.applying) ? Result.Ok : Result.Cancel;
}
}
