system-shutdown

I need to mute/un-mute the sound card at startup and shutdown. I have found some code to do the work, but often Windows slams through the shutdown and the sound never gets muted. Can someone please tell me how to pause the shutdown long enough for my app to mute the sound? I can use a simple TTimer to pause the app long enough for it to run the muting and then let Windows get on with shutting down. How do I tell Windows to wait though? I notice that if I leave Firefox running and try to shutdown, Windows stops with a message, "These programs are preventing windows closing..." and needs a click

I have a cmd script that will execute a set of patches, and it's designed to abort if a reboot is required to avoid patching issues. I'd also like to extend the script to abort if a reboot is scheduled (E.g. via the "shutdown" command) in order to avoid reboots mid patch if possible. Unfortunately I haven't managed to find a way to detect this apart from attempting to schedule another shutdown, which results in: A system shutdown has already been scheduled.(1190) While I could theoretically use this I don't think it would be good practice to scare logged in users every time I needed to check

I want to be able to 1. detect (and, if needed 2. abort) OS shutdown from my application, preferably by using the Windows API. I know that it is possible to abort shutdown manually using the command shutdown -a In the worst case, I could ShellExecute this, but I was wondering if there was a better way to prevent the shutdown programatically. Maybe it would be enough to be notified programatically that the OS is about to shut down - how to do this? Piskvor From MSDN : The WM_QUERYENDSESSION message is sent when the user chooses to end the session or when an application calls one of the system

I am working on an application where I need to detect a system shutdown. However, I have not found any reliable way get a notification on this event. I know that on shutdown, my app will receive a SIGTERM signal followed by a SIGKILL . I want to know if there is any way to query if a SIGTERM is part of a shutdown sequence ? Does any one know if there is a way to query that programmatically (C API)? As far as I know, the system does not provide any other method to query for an impending shutdown. If it does, that would solve my problem as well. I have been trying out runlevels as well, but

Is there any way to run a script only at shutdown? I mean, only when the computer is really shutting down to off state. This script should not run when doing just a log off or restart. Few days ago I published on github a configuration/script able to be executed at boot/shutdown . Basically on Mac OS X you could/should use a System wide and per-user daemon/agent configuration file (plist) in conjunction with a bash script file. This is a sample of the plist file you could use: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs

I'm making a protected-mode OS based on Intel's x86 architecture, and was looking for some information on how to power off the computer via assembly code, or something like that. Could you help me with this problem? from http://forum.osdev.org/viewtopic.php?t=16990 The ACPI shutdown is technically a really simple thing all that is needed is a outw(PM1a_CNT, SLP_TYPa | SLP_EN ); and the computer is powered off. The problem lies in the gathering of these values especially since the SLP_TYPa is in the _S5 object which is in the DSDT and therefore AML encoded. Below is a simple "map" of where to

Some explanation: for a project I'm working on I have to write a program that is running in the background, detects changes to files, and uploads the modified files to a web service to make it available to others. Quite simple synchronization if it were not for the case when a user modifies a big file and decides to shutdown its computer right after the edit. I could cancel the upload and wait for the next reboot to do the upload, but I can imagine the user downloading the file from the web to another computer the next morning and don't understanding why his changes from last night aren't