View source for How to gracefully handle computer shutdown from WPF application

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[[File:WPF application lifetime.png|700px]]

====Application Events====
* http://msdn.microsoft.com/en-us/library/ms588795.aspx
=====When you start the application=====
Startup -> Activated
=====When you shut the application down normally (i.e. close main window)=====
Deactivated -> Exit
=====If user is logging out of or shutting down Windows=====
Deactivated -> SessionEnding
=====Application gets focus=====
Activated
=====Application loses focus=====
Deactivated

====AppDomain Events====
* http://msdn.microsoft.com/en-us/library/1dw188c1.aspx
When an exception is not caught
=====UnhandledException=====
(DispatcherUnhandledException is raised by an Application for each exception that is unhandled by code running on the main UI thread, but if you can safely ignore that and wait for UnhandledException is raised by AppDomain)


==How to simulate Windows shutdown for debugging?==
There is a tool named Restart Manager (rmtool.exe) in the Microsoft's Logo Testing Tools for Windows, which can be used to send shutdown and restart messages to a process. Logo testing tools can be downloaded here:

* http://download.microsoft.com/download/d/2/5/d2522ce4-a441-459d-8302-be8f3321823c/LogoToolsv1.0.msi

Then you can simulate shutdown for your process:

rmtool.exe -p [PID] -S<br>
where [PID] is the process ID. According to the Vista Logo Certification Test Cases document,

Restart Manager shutdown messages are:

a) WM_QUERYENDSESSION with LPARAM = ENDSESSION_CLOSEAPP(0x1): GUI applications must respond (TRUE) immediately to prepare for a restart.

b) WM_ENDSESSION with LPARAM = ENDSESSION_CLOSEAPP(0x1): The application must shutdown within 5 seconds (20 seconds for services).

c) CTRL_SHUTDOWN_EVENT: Console applications must shutdown immediately.


* [http://msdn.microsoft.com/en-us/library/windows/desktop/aa376877.aspx Application Shutdown Changes in Windows Vista]