I am facing a callBack lost issue ExternalInterface,what is happening is as soon as you hide Flex application by opening another application(any app) and then again you come back to your flex app , call back does not work , they are broken.I found following related jira for this.
To solve this issue , I am re-registering all callBacks on ENTER_FRAME event and issue appears to be solved but this is leading to memory leak.
Neither Activate nor FocusEvent.FOCUS_IN does serve my purpose , both required a mouse Clk before they dispached.
Workaroud for any of the above will solve my problem. I am wondering If there is any event which gets fired when I swich back to the flex app again.
My application is hosted as ActiveX control and I m calling callback from Dot Net application.