I want to override the default behavior of the Flex framework PopUpManager. I found a few helpful links on how to accomplish this: http://cookbooks.adobe.com/index.cfm?event=showdetails&postId=13828
It suggests registering a custom IPopUpManager implementation with the system singleton registry before the default framework implementation is registered by using this line of code in an application preloader:
However, it seems as if the mx.core.Singleton class has been removed in Flex 4. Is this the case? Is there another way to access the application singleton registry?
Thanks for any help,
Ah, I feel naive... the singleton class has been marked [ExcludeClass] so it's there, it just doesn't show up in the Flash Builder auto-complete, or in the asdoc documentation.