复制内容到剪贴板

代码:

struct hostent *thisHost;
struct in_addr in;
char MyName[80];
char *IP,*ptr;

if(gethostname (MyName,80)==SOCKET_ERROR)
return NULL;
if(!(thisHost = gethostbyname(MyName)))
return NULL;
memset((void *)&in,sizeof(in),0);
in.s_addr=*((unsigned long *)thisHost->h_addr_list[0]);
if(!(ptr = inet_ntoa(in)))
return NULL;
IP = new char[strlen(ptr)+1],
strcpy(IP,ptr);
return IP;

能给出获得本机MAC地址的代码吗？