Protected Overrides Sub OnMenuItemOpenChanged( _
   ByVal isOpen As Boolean _
) 

Dim instance As UXMenuBar
Dim isOpen As Boolean
 
instance.OnMenuItemOpenChanged(isOpen)

protected override void OnMenuItemOpenChanged( 
   bool isOpen
)

protected procedure OnMenuItemOpenChanged( 
    isOpen: Boolean
); override; 

protected override function OnMenuItemOpenChanged( 
   isOpen : boolean
);

protected: void OnMenuItemOpenChanged( 
   bool isOpen
) override 

protected:
void OnMenuItemOpenChanged( 
   bool isOpen
) override