Set BusyCursor with CursorManager
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<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Script>
import mx.managers.CursorManager;
</mx:Script>
<mx:Button label="Show Busy Cursor" click="CursorManager.setBusyCursor()" />
<mx:Button label="Hide Busy Cursor" click="CursorManager.removeBusyCursor()" />
</mx:Application>
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