void getMACAddr()
{
CCLOG("getMACAddr 1");
IP_ADAPTER_INFO *info = NULL, *pos;
DWORD size = 0;

GetAdaptersInfo(info, &size);

info = (IP_ADAPTER_INFO *)malloc(size);

GetAdaptersInfo(info, &size);
CCLOG("getMACAddr 2");

for (pos = info; pos != NULL; pos = pos->Next)
{
    std::stringstream ss;
    CCLOG("getMACAddr 3");
    CCLOG("n%snt", pos->Description);
    CCLOG("HEX = :%2.2x", pos->Address[0]);
    ss << pos->Address[0];
    for (int i = 1; i < pos->AddressLength; i++)
    {
        CCLOG("HEX = :%2.2x", pos->Address[i]);
        ss << pos->Address[i];
    }
    std::string tS = ss.str();
    CCLOG("%s", tS.c_str());
}
free(info);


}

getMACAddr 1
'prog.exe' (Win32): Loaded 'C:WindowsSysWOW64dhcpcsvc.dll'.Cannot find or open the PDB file.
getMACAddr 2
getMACAddr 3

Bluetooth Device (Personal Area Network)

HEX = :08
HEX = :3e
HEX = :8e
HEX = :aa
HEX = :37
HEX = :52
tS == >??7R

#include <iomanip>

ss << std::hex << std::setfill('0') << std::setw(2);
for (int i = 0; i < pos->AddressLength; i++) {
  ss << (int) pos->Address[i];
}
std::string tS = ss.str();