ACTIONSCRIPT 3 Developer’s Guide en

ACTIONSCRIPT 3.0 DEVELOPER’S GUIDE
Working with AIR native windows
Package Classes
flash.display NativeWindow
Native window event flow
Adobe AIR 1.0 and later
NativeWindowInitOptions
NativeWindowDisplayState
NativeWindowResize
NativeWindowSystemChrome
NativeWindowType
flash.events NativeWindowBoundsEvent
NativeWindowDisplayStateEvent
Native windows dispatch events to notify interested components that an important change is about to occur or has
already occurred. Many window-related events are dispatched in pairs. The first event warns that a change is about to
happen. The second event announces that the change has been made. You can cancel a warning event, but not a
notification event. The following sequence illustrates the flow of events that occurs when a user clicks the maximize
button of a window:
1 The NativeWindow object dispatches a displayStateChanging event.
2 If no registered listeners cancel the event, the window maximizes.
3 The NativeWindow object dispatches a displayStateChange event.
In addition, the NativeWindow object also dispatches events for related changes to the window size and position.
The window does not dispatch warning events for these related changes. The related events are:
a A move event is dispatched if the top, left corner of the window moved because of the maximize operation.
b A resize event is dispatched if the window size changed because of the maximize operation.
A NativeWindow object dispatches a similar sequence of events when minimizing, restoring, closing, moving, and
resizing a window.
The warning events are only dispatched when a change is initiated through window chrome or other operatingsystem
controlled mechanism. When you call a window method to change the window size, position, or display
state, the window only dispatches an event to announce the change. You can dispatch a warning event, if desired,
using the window dispatchEvent() method, then check to see if your warning event has been canceled before
proceeding with the change.
For detailed information about the window API classes, methods, properties, and events, see the ActionScript 3.0
Reference for the Adobe Flash Platform.
Last updated 6/6/2012
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