Mac Forum / Programming / Mac Programming / September 2006

I am trying to implement a logout hook with one of my programs and not
having any luck getting it to work. I thought I would give Mike
Bombich's LoginWindow Manager program a try to see what it did to the
loginwindow plist. Unfortunately, I can't get that to work either.

Here is my test script:

#!/bin/bash
echo test > /tmp/logouttest.log

I can run this script just fine from a Terminal window - the test file
appears as expected. However when I try to make it a logout hook in
LoginWindow Manager and click on the test button, I get the following
message:

AppleScript Error
The variable msg is not defined. (-2753)

As my test script has nothing to do with AppleScript, I assume this
means some kind of problem with LoginWindow Manager, which appears to be
an AppleScript Studio application.

Also, if I click on 'Apply', I am asked to enter an admin password. I do
so. However, neither version of com.apple.loginwindow.plist (my
Preferences or /Library/Preferences) is changed.

Test system is iBook G3 running OS X 10.4.5. LoginWindow Manager is
2.0.2.

By the way, does anyone know why admin privileges are needed to create a
user specific logout hook? I had no trouble adding 'LogoutHook' to  
~/Library/Preferences/com.apple.loginwindow.plist. (But, it didn't seem
to cause my script to run when I logged out...)

Thanks for any help anyone can give me.

Don Hall