检测本机是否联网（互联网）

2017-01-26 17:22:14 访问(1334) 赞(0) 踩(0)


        #region 检测本机是否联网（互联网）

        /// <summary>
        /// InternetGetConnectedState
        /// </summary>
        /// <param name="connectionDescription"></param>
        /// <param name="reservedValue"></param>
        /// <returns></returns>
        [DllImport("wininet")]
        private extern static bool InternetGetConnectedState(out int connectionDescription, int reservedValue);
        
        /// <summary>
        /// 检测本机是否联网
        /// </summary>
        /// <returns></returns>
        public static bool IsConnectedInternet()
        {
            int i = 0;
            if (InternetGetConnectedState(out i, 0))
            {
                //已联网
                return true;
            }
            else
            {
                //未联网
                return false;
            }
        }

        #endregion