API ObjectPoolMixin GetNextActive

Stateless iterator to cycle through the active and inactive widgets in an .
 widget = pool:NextActive([current])
 widget = pool:NextInactive([current])
== Arguments ==
; current : - Current widget in the list, or nil to start at the beginning.
== Returns ==
; widget : - Next widget in the list, or nil when the last widget has been reached.
== Details ==
* There are no assurances the widgets will be accessed in any particular order.
== Example ==
 local widget = pool:NextActive()
 while (widget) do
 -- do something
 widget = pool:NextActive()
 end
== See also ==
* 
* 
* - Generic stateless iterator.
== Patch changes ==
* 
* 
== References ==