The native C code can dispatch asynchronous events back
to the ActionScript side of your extension. For example, an extension
method can start another thread to perform some task. When the task
in the other thread completes, that thread calls
FREDispatchStatusEventAsync()
to
inform the ActionScript side of the extension. The target of the
event is an ActionScript ExtensionContext instance.
The sequence diagram in
Extension functions
shows a native C function starting an asynchronous
thread, which later dispatches an event.
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