nMail.Attachment.DecodeHeaderField C# (CSharp) 메소드

        public string DecodeHeaderField(string field)
        {
            SetHeaderSize();
            _field = new StringBuilder(_header_size);
            _err = Pop3DecodeHeaderField(_field, field, _header_size);
            if(_err < 0)
            {
                throw new nMailException("DecodeHeaderField", _err);
            }
            return _field.ToString();
        }