how can we know system status like shut down, system locked etc.

Question

0.00/5 (No votes)

See more:

Hi,
I have an MFC application and that starts execution when windows starts.When the application ends, It keeps a log file in temp folder. Some times,when improper shut down occurs, my application ends without writing the log file. How can I remove this situation? how can we know system status like shut down, system locked etc.. Please give some hints.

Thanks
Mithun Nair

Posted 17-Jan-11 17:22pm

Mithun Nair

Updated 18-Jan-11 13:39pm

Indivara

v2

Add a Solution

2 solutions

Solution 1

Write the log immediately, whenever some change occurs? Or update it periodically, like MS Word's auto-save?

Posted 17-Jan-11 18:04pm

Indivara

Comments

Espen Harlinn 18-Jan-11 8:50am

5+ Write immediately to the log, what if the app crashes?

Indivara 18-Jan-11 19:38pm

Too bad, then :) (but not asked in the question)
The answer below is better. Didn't know that one. Doesn't cover a system hung situation though.
Drivers use this
http://msdn.microsoft.com/en-us/library/ff566401.aspx
but I don't think it would work in an application.

Espen Harlinn 19-Jan-11 5:39am

I know it wasn't asked in the question :) I just thought it's a good advice. When I work in C++ I usually leverage ACE, http://www.cs.wustl.edu/~schmidt/ACE.html, and make extensive use of it's logging facilities. I've had no performance problems using this excellent library, and there are lots of other goodies too :)

Indivara 19-Jan-11 7:05am

That looks good, I'm going to try it out some time soon. Have a virtual 5!

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

**JF2015** · Accepted Answer · 2011-01-17T18:21:00

Solution 2

Hi,

have a look at the WM_QUERYENDSESSION message:
http://msdn.microsoft.com/en-us/library/aa376890%28VS.85%29.aspx[^

Posted 17-Jan-11 18:21pm

JF2015

Comments

Espen Harlinn 18-Jan-11 8:48am

5+ Good "hintz" :)