System Information

[Daniel Kanev]

Hi, I want to write a console application with WinMain, i.e. WIN32 APP but without any windows. I want it to have a while cycle in the main func doing something and the program to exit gracefully when Windows shuts down. And my problem is I do not know how to get system information - if windows is shutting down or restarting. If I do not exit the cycle the system will hang waiting for my program to finish. And as I do not want to run it as a service there is no way to catch the messages coming from the OS because they are sent either to services or Windows Apps. Can you help me ?

[Matthew Faithfull]

You could try creating one Window but make it invisible. Not pretty but even Microsoft themselves have been known to resort to this at times. I'm sure WMI could also be used to get you the information you want but I don't knw any more about it than that I'm afraid.

Nothing is exactly what it seems but everything with seems can be unpicked.

[Don Box]

U could handle WM_ENDSESSION.

Come online at:- jubinc@skype

[David Crow]

Without a window, how are you going to respond to the WM_QUERYENDSESSION or WM_ENDSESSION message?

"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

[jhwurmbach]

Have your application be a window - hidden and with no size. This way, you can catch the relevant messages.

Let's think the unthinkable, let's do the undoable, let's prepare to grapple with the ineffable itself, and see if we may not eff it after all.
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[Stephen Hewitt]

You have a hidden window. It's a common technique. If you use Spy you'll find a number of such windows.

Steve

[David Crow]

I know that, but Daniel's requirement was, "without any windows."

"Normal is getting dressed in clothes that you buy for work and driving through traffic in a car that you are still paying for, in order to get to the job you need to pay for the clothes and the car and the house you leave vacant all day so you can afford to live in it." - Ellen Goodman

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne