Protected Overridable Sub OnPopUpOpened( _
   ByVal sender As Object, _
   ByVal e As ISRoutedEventArgs _
) 

Dim instance As UXDateTimePicker
Dim sender As Object
Dim e As ISRoutedEventArgs
 
instance.OnPopUpOpened(sender, e)

protected virtual void OnPopUpOpened( 
   object sender,
   ISRoutedEventArgs e
)

protected procedure OnPopUpOpened( 
    sender: TObject;
    e: ISRoutedEventArgs
); virtual; 

protected function OnPopUpOpened( 
   sender : Object,
   e : ISRoutedEventArgs
);

protected: virtual void OnPopUpOpened( 
   Object* sender,
   ISRoutedEventArgs* e
) 

protected:
virtual void OnPopUpOpened( 
   Object^ sender,
   ISRoutedEventArgs^ e
)