Run command when power button pushed - Page 2

Injector · 05-30-2009, 11:07 AM

you could always go pro

ThunderStick · 05-30-2009, 12:58 PM

That may be the plan, I do have a copy of it. I just hate re-installing windows all the time.
I was thinking of just disabling any shutdown action at all when the power button is pressed and instead have a script to monitor my system power voltage. The idea is when the car turns off there is a power drop because the alternator is no longer charging. When detected a voltage drop below 12 volts for more than 1 minute it will fire the script and begin my personalized shutdown sequence.
I can set my PSU to kill the PC after 10 minutes which should give my computer plenty of time to shutdown and complete the script.

colin · 05-30-2009, 01:30 PM

It is not impossible. I havent checked this thread because I figured someone would have given an answer.

If any of you have some programming knowledge, trap Windows' messages! Windows tells each program to close nicely, and prior to Vista, the programs had an option as to whether or not they would shut down.

This caused problems because people would press shutdown and the computer would still be on 5 minutes later before they realized that something went wrong!

From MSDN:

Quote:

"The WM_QUERYENDSESSION message is sent when the user chooses to end the session or when an application calls one of the system shutdown functions. If any application returns zero, the session is not ended. The system stops sending WM_QUERYENDSESSION messages as soon as one application returns zero.

After processing this message, the system sends the WM_ENDSESSION message with the wParam parameter set to the results of the WM_QUERYENDSESSION message

ClockWorK · 05-30-2009, 07:22 PM

That was my plan.. but I've been busy with work. Looking into it now while my wife is on the Wii Fit.

ThunderStick · 05-30-2009, 08:15 PM

If someone can create a solution for my it would be greatly appreciated. I am getting pretty good with AutoIT but anyother type of program is still greek to me..

ClockWorK · 05-30-2009, 09:21 PM

I whipped up an app. It's called PBTintercept. It's just an EXE file and an INI file. It runs silently (find it's process in taskmanager to kill it). It intercepts the shutdown message, and cancels it. Then it runs the specified EXE and waits until that EXE is terminated, or can be set to only wait for a predetermined amount of time. Lastly, the app issues a shutdown command. I've tested it. It works for me. I hope this works on the first try.

VB.Net 2008 souce code is included. I was going to try to detect suspend and hibernate, and go further with this program, but my XP laptop has issues, so testing this is a pain..

From what I read, this app will NOT work in Windows Vista or Windows 7.

Here's what the ini looks like:

[OnShutdown]
Runapp=c:\windows\system32\notepad.exe
RuncmdLine=
MaxWaitSecs=0

Let me know how it goes.

colin · 05-31-2009, 03:32 AM

Hibernate and Resume is as simple as WM_POWERBROADCAST and then check the wParam (I believe) for PBT_APMRESUMESUSPEND or PBT_APMSUSPEND

ClockWorK · 05-31-2009, 08:19 AM

PBT_APMRESUMESUSPEND and PBT_APMSUSPEND will detect hibernate/resume and suspend/resume, but I wanted to differentiate between suspend and hibernate. I figured it would be in the wParam or lParam, but I didn't see the information anywhere, and the original poster was only looking to detect shutdown, so I just let it go with that.

The front-end I wrote (DriveLine -- check it out) detects hibernate/resume just fine. But it doesn't need to know the difference between suspend and hibernate.

ThunderStick · 05-31-2009, 08:42 AM

Quote: Originally Posted by ClockWorK

I whipped up an app.
...
Let me know how it goes.

WORKS AWSOME

ClockWorK · 05-31-2009, 08:56 AM

Now THAT makes me smile.

As soon as I saw the post that said it was impossible, I knew I'd have to do it.

ThunderStick · 05-31-2009, 10:17 AM

I knew if I said it was impossible someone would be trying pretty hard to prove me wrong..
"Mamma allways said that nothin' is impossible"

colin · 05-31-2009, 11:47 AM

Nicely done, that's pretty sly

The only reason I knew anything about the ARM commands was because my frontend now also supports hibernate/resume, and similar to yours, ClockWork, doesn't need to know the difference.

Cycfari · 06-05-2009, 09:08 PM

Thanks for this great app for my current problem! Basically I need to close RR/Winamp first before the PC does a shutdown so that the last VST presets will be saved. Now i'll have to try & create a bat file or find a exe command to close RR.