SystemUIServer

FROM : Tetsuya Takeo
DATE : Fri Nov 05 19:33:05 2004

Dear list,

Now I'm writing application which changes behaviour when DVD is 
inserted. At first, i used CFPreferencesSetAppValue() and 
CFPreferencesAppSynchronize(), it worked. The popup of Preferences 
changed. But, when i insert DVD into drive, previously set application 
launched. It takes logout to change behaviour which is displayed on 
Preference. I searched documents, and found that there are several ways 
to changes take 
effect.(file:///Developer/Documentation/UserExperience/Conceptual/
PreferencePanes/index.html#//apple_ref/doc/uid/10000110i) These are 
Apple Event, DO, Distributed Notification, Socket and Port and BSD 
Signal.

The event sent when DVD is inserted, seems to be handled by 
SystemUIServer, so i tested to send SIGHUP, and it worked. The changes 
on Preference is reflected after kill command.

What i'd like to know is that, this method is considered right one or 
not. If this method is thought as some exploits, it will not be 
compatible with future releases. Any suggestion is appreciated.

Thanks in advance.

Tetsuya,
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[objC retain];
Tetsuya Takeo / Galapagos Systems