Protected Overridable Sub OnCommandChanged( _
   ByVal oldCommand As ICommand, _
   ByVal newCommand As ICommand _
) 

Dim instance As UXMenuItem
Dim oldCommand As ICommand
Dim newCommand As ICommand
 
instance.OnCommandChanged(oldCommand, newCommand)

protected virtual void OnCommandChanged( 
   ICommand oldCommand,
   ICommand newCommand
)

protected procedure OnCommandChanged( 
    oldCommand: ICommand;
    newCommand: ICommand
); virtual; 

protected function OnCommandChanged( 
   oldCommand : ICommand,
   newCommand : ICommand
);

protected: virtual void OnCommandChanged( 
   ICommand* oldCommand,
   ICommand* newCommand
) 

protected:
virtual void OnCommandChanged( 
   ICommand^ oldCommand,
   ICommand^ newCommand
)