delphi获得网卡的MAC地址

 
获得网卡的MAC地址在很多地方都有很大的用处,下面的函数以XX-XX-XX-XX-XX-XX 的格式返回远程或本地机器的MAC地址。
Function to return the MAC address of a remote or local machine in the format XX-XX-XX-XX-XX-XX
返回的MAC地址是一个能用在多个方面的唯一标识。使用方法：
ShowMessage(GetMacAddress(\\MHEYDON);
输出00-02-08-E7-99-6B
// ======================================================================
//返回值是主机AServerName的MAC地址
//AServerName参数的格式为\\ServerName 或者 ServerName
//参数ServerName为空时返回本机的MAC地址
//MAC地址以XX-XX-XX-XX-XX-XX的格式返回
// ======================================================================
function GetMacAddress(const AServerName : string) : string;
type
     TNetTransportEnum = function(pszServer : PWideChar;
                                  Level : DWORD;
                                  var pbBuffer : pointer;
                                  PrefMaxLen : LongInt;
                                  var EntriesRead : DWORD;
                                  var TotalEntries : DWORD;