Why can I drag the Synergy controls around the menu bar when holding down the Command key?
Only applications that access Apple’s private “MenuExtra” API can be moved in this way, and with the release of Mac OS X 10.2 Apple removed the ability of third-party applications to access this undocumented API. There are applications on the market that hack their way around this restriction, but their techniques are not supported by Apple and there is no guarantee that they will continue to work in future versions of the OS. As such, Synergy elects not to make use of these methods, but instead uses the Apple-approved mechanism for appearing in the menu bar: the “StatusBar” API. This mechanism is officially supported by Apple. If and when Apple decides to allow StatusBar items to respond to Command-drag events, Synergy will be movable in this fashion. One benefit of using the StatusBar mechanism is that, unlike MenuExtras, StatusBar items do not crash when the SystemUIServer goes down (or is brought down by another MenuExtra). StatusBar items like Synergy cannot be crashed by, or caus
