public override int GetByteCount(
	char[] chars,
	int index,
	int count
)

Public Overrides Function GetByteCount ( _
	chars As Char(), _
	index As Integer, _
	count As Integer _
) As Integer

public:
virtual int GetByteCount(
	array<wchar_t>^ chars, 
	int index, 
	int count
) override