You'd simply need to override GetAcceptedControls() in your ServiceFramework subclass to OR in SERVICE_ACCEPT_PRESHUTDOWN and override SvcOtherEx to process SERVICE_CONTROL_PRESHUTDOWN.
Other interesting service control notifications appear to be PowerEvent and TimeChange. I'd guess PowerEvent is for sleep/hibernation, and TimeChange is to deal with time jumping forward and backward on you. (via NTP or manual intervention) Here are the constants to use: #define SERVICE_CONTROL_PRESHUTDOWN 0x0000000F #define SERVICE_ACCEPT_PRESHUTDOWN 0x00000100 Bill On Tue, Feb 7, 2012 at 1:54 AM, Mark Hammond <skippy.hamm...@gmail.com>wrote: > On 7/02/2012 5:18 PM, Lincoln Yeoh wrote: > >> Hi, >> >> Is it easy to create a python windows service that registers for the >> preshutdown event[1]? >> > > It sounds like it should be easy, although you will need to define your > own new constants which have been introduced. It would be great if you do > get it working you contribute a working sample which I can add to pywin32. > > Cheers, > > Mark > > > >> Basically I would like a window service that will help shutdown .Net >> (and possibly other) services in the right order. >> >> Because: >> http://connect.microsoft.com/**VisualStudio/feedback/details/** >> 641737/add-windows-service-**preshutdown<http://connect.microsoft.com/VisualStudio/feedback/details/641737/add-windows-service-preshutdown> >> >> "A Windows service in C# cannot be registered to preshutdown >> notifications. It is possible in C++ but not in C# with the current .net >> framework" >> >> http://support.microsoft.com/**kb/203878<http://support.microsoft.com/kb/203878> >> >> "When a service is dependendent on other services, the Service Control >> Manager (SCM) will automatically start the dependencies before starting >> the dependent service itself. However, during system shutdown, the SCM >> does not take dependencies into consideration when stopping services. It >> simply enumerates the list of running services and sends a >> SERVICE_CONTROL_SHUTDOWN command to all of them. Thus, a service may >> stop responding or fail because another service it depends upon has >> already stopped." >> >> (yeah weird right?) >> >> And, since I'm a crappy and lazy programmer I think it'll be easier for >> me to write such a thing in Python than C++, reasonably quickly, with >> the features I want and with not too many bugs. >> >> Regards, >> >> Link. >> >> [1] >> http://msdn.microsoft.com/en-**us/magazine/cc164252.aspx#S2<http://msdn.microsoft.com/en-us/magazine/cc164252.aspx#S2> >> >> ______________________________**_________________ >> python-win32 mailing list >> python-win32@python.org >> http://mail.python.org/**mailman/listinfo/python-win32<http://mail.python.org/mailman/listinfo/python-win32> >> > > ______________________________**_________________ > python-win32 mailing list > python-win32@python.org > http://mail.python.org/**mailman/listinfo/python-win32<http://mail.python.org/mailman/listinfo/python-win32> > >
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