I’ve seen several people ask about multi-monitor support in AIR. The answer is: it’s there, and it’s very good.
Take a look at the
flash.display.Screen class (AIR only — not available in the Flash Player). It contains the following properties:
mainScreen(for getting a Screen reference to the main screen when there are multiple monitors)
screens(an array of Screen objects for all attached monitors)
visibleBounds(returns a Rectangle that excludes unusable portions of the screen like the taskbar, menu bar, and the dock)
The Screen class also contains a very cool function called
getScreensForRectangle that returns an array of screens that intersect the specified Rectangle.
We’ve also added a
ScreenMouseEvent that is dispatched by
SystemTrayIcon and gives you the coordinates of a click relative to the main screen as opposed to an application window.
For a relatively simple example of the Screen APIs in action, check out SPF on the Adobe Labs Sample Application page.