Public Event NativeDragOver As DragEventHandler

Dim instance As ISDragableHierarchicalMultipleSelectionControl
Dim handler As DragEventHandler
 
AddHandler instance.NativeDragOver, handler

public event DragEventHandler NativeDragOver

public event NativeDragOver: DragEventHandler; 

In JScript, you can handle the events defined by another class, but you cannot define your own.

public: __event DragEventHandler* NativeDragOver

public:
event DragEventHandler^ NativeDragOver