How to write the current status in some file when system shuts down with Electricity failure

Nibu babu thomas

zahid_ash wrote:

But when the application gets closed after sudden electricity failure,

AFAIK there are none. WM_QUERYENDSESSION and others do help only if you are using Shut Down.

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Eytukan

How can you write when the system has shut down??:confused: and Btw is this you really ask?

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zahid_ash

Mean to say that I want to write in a file( open a file and write status data in it)just before Operating system is shutting down with electricity failure Regards.

Mahesh Kulkarni

I don't know how to detect electricity failure . But you can write the system status after some time span continuesly. When system shuts down you have nearest system status in ur file. The secret of life is not enjoyment but education through experience. - Swami Vivekananda.

Eytukan

As Nimbu has said, QueryEndSession is the only way .. that too when the system is not being shut down abruptly. But if you still want to do, do one thing, write the staus in a remote computer.(i.e a Client machine), which gets data(status) from the server(the electrically-downed machine), now atleast you can write, *when* the system actually went down. like... 09:40:43-29/6/05 - Status X 09:41:23-29/6/05 - Status Y (Now the server is down abrubtly) 09:42:23-29/6/05 - Server Down, [Here the client will still be alive to say that he's down] will this work for you?

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Sarath C

If we can detect the electricity failure, then we do not need of a UPS :) it is only requires if we need continue our work to power failure time :( SaRath

Lost User

If you have a UPS (Uniterruptible Power Supply) they send a message to the PC whe nthe mains goes off so you have time to shot down properly while the batteries in the UPS last. Elaine :rose: The tigress is here :-D

Sebastian Schneider

We cannot. Because at the time that we are able to notice a power failure, it has already happened. And as soon as the hard-disk looses power, it shuts itself down. Yes, theoretically, the failure is not "sudden", but happens over a (very short) time-span. If you wanted to monitor for electrical failure, your computer could not do anything else, because he would have to check Vcore every 1000 cycles or so. And even that probably would not be fast enough to trigger a HDD-Write before the disk spins down. This ONLY works with an UPS, which will notify Windows that "you are on battery now. save everything you can.". All UPSes allow some kind of status monitoring, but you might have to install propietary drivers for older or more sophisticated models. What I was going to say originally: "You should really try to claim damages toward your local power company for not notifying you (in written form) two days in advance of any unplanned power failure." But I thought that was too harsh. Cheers, Sebastian -- Contra vim mortem non est medicamen in hortem.

Eytukan

Excellent Elaine, I didn't think of this idea. This would be the best option for him. But he must ensure that his UPS is enabled with communication port. Here in India, I find only APC providing that feature. That too not for the lower ends. I checked a model on the internet that had USB port, and I bought it home immediately. When I unpacked it, I found no *holes* around :(.I got disappointed. I called the customer care, they said, it's available only with the Japanese model :((.

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Lost User

:wtf: The tigress is here :-D