.. _FlashPlayer.callback: ================================================ FlashPlayer.callback ================================================ void **callback** () Description ----------- A function definition for a callback from the Flash ActionScript environment. The Flash ActionScript code can call any callback function defined on the ExtendScript side of the FlashPlayer object, invoking it by name as a property of the control object. The function can take any arguments of a supported data types, and can return any value of a supported data type. data types:Number, String, Boolean, null, undefined, Object, Array.