I am trying to build an Adobe AIR app that runs on two monitors with an extended desktop. Is that possible?
I've read fullscreen is restricted to a single display and the only option is to maximize the app to both displays. Is that right? If so, how can I hide OSX top menu bar?
Just for the record, OSX does not allow you to have more than one full screen applications (of any kind, not just AIR) open at the same time nor it let's you to expand a full screen app to more than one display.
An application window can span multiple displays as long as the window is sized properly. Menubar and dock can also be hidden. Check NSWindow in the apple documentation for more info. Adobe may or may not support this feature.
来源：https://stackoverflow.com/questions/7174986/adobe-air-is-it-possible-to-create-a-full-screen-app-to-fill-multiple-monitors