EditorApplication.hierarchyWindowChanged

Could someone please guide me to a more useful resource than the one described within the reference docs, on how i can use this.

I have used the @script ExecuteInEditMode, and than tried to use a regular update, and i realise that the return is a callback, not boolean, but im really unclear on how to use this, and cant seem to locate any articles relating to Unity on the subject.

Code (csharp):

1.     function Update(){
2.    
3.         if(EditorApplication.hierarchyWindowChanged == true){
4.             Debug.Log("true");
5.         }
6.     }
7.  

from what i have read, delegates seem to be a issue within Unitys .js? Prime reason to use c#, haha , but still , there must be a way to use it in .JS?

Thanks.

 

And as i dug a little more and found a snippet using a delegate in .js somewhere totally unrelated, heres what i found.

Code (csharp):

1.  
2.  
3. function SomeFunction(){
4.     EditorApplication.hierarchyWindowChanged = CustomHierarchyChanged;
5. }
6.  
7. function CustomHierarchyChanged(){
8.       // do some stuff here.
9. }
10.  
11.  

Pretty simple, Hope it helps anyone else looking ...