prefwindow. These will be called by prefwindow when the user hits OK or Cancel button; the intent is that a panel can then determine if the user made changes that were commited, and act upon them. I will post something to prefs and general about how that can be done. r=ben git-svn-id: svn://10.0.0.236/trunk@59025 18797224-902f-48f8-a5cc-f745e15eee43