【C++】【纯代码】获取电脑的mac地址

bool GetMacAddress(CString &LanMAC)
{
#define MAX_ADAPTER_NAME_LENGTH 256                                                                                  
#define MAX_ADAPTER_DESCRIPTION_LENGTH 128                                                                           
#define MAX_ADAPTER_ADDRESS_LENGTH 8                                                                                 
    typedef struct _NET_IP_ADDRESS_STRING{
        char String[16];
    } NET_IP_ADDRESS_STRING, *PNET_IP_ADDRESS_STRING, NET_IP_MASK_STRING, *PNET_IP_MASK_STRING;
    typedef struct _NET_IP_ADDR_STRING {
        struct _NET_IP_ADDR_STRING* Next;
        NET_IP_ADDRESS_STRING IpAddress;
        NET_IP_MASK_STRING IpMask;
        DWORD Context;
    } NET_IP_ADDR_STRING, *PNET_IP_ADDR_STRING;
    typedef struct _NET_IP_ADAPTER_INFO {
        struct _NET_IP_ADAPTER_INFO* Next;
        DWORD ComboIndex;
        char AdapterName[MAX_ADAPTER_NAME_LENGTH + 4];
        char Description[MAX_ADAPTER_DESCRIPTION_LENGTH + 4];
        UINT AddressLength;
        BYTE Address[MAX_ADAPTER_ADDRESS_LENGTH];
        DWORD Index;
        UINT Type;
        UINT DhcpEnabled;
        PNET_IP_ADDR_STRING CurrentIpAddress;
        NET_IP_ADDR_STRING IpAddressList;
        NET_IP_ADDR_STRING GatewayList;
        NET_IP_ADDR_STRING DhcpServer;
        BOOL HaveWins;
        NET_IP_ADDR_STRING PrimaryWinsServer;
        NET_IP_ADDR_STRING SecondaryWinsServer;
        time_t LeaseObtained;
        time_t LeaseExpires;
    } NET_IP_ADAPTER_INFO, *PNET_IP_ADAPTER_INFO;

    // LanMAC.RemoveAll();                                                                                                  

    HINSTANCE hLib = 0;
    if (hLib = LoadLibrary(_T("iphlpapi.dll"))) //加载动态库                                                         
    {
        DWORD(WINAPI*pGetAdaptersInfo) (PNET_IP_ADAPTER_INFO, PULONG) =
            (DWORD(WINAPI*) (PNET_IP_ADAPTER_INFO, PULONG))GetProcAddress(hLib, "GetAdaptersInfo");//获取地址              
        if (pGetAdaptersInfo != 0)
        {
            DWORD AdapterInfoSize = 0;
            if (pGetAdaptersInfo(0, &AdapterInfoSize) == ERROR_BUFFER_OVERFLOW) //获取长度                                   
            {
                PNET_IP_ADAPTER_INFO pAdapterInfo = (PNET_IP_ADAPTER_INFO) new BYTE[AdapterInfoSize]; //分配内存              

                if (pGetAdaptersInfo(pAdapterInfo, &AdapterInfoSize) == ERROR_SUCCESS) //获取信息                           
                {
                    PNET_IP_ADAPTER_INFO pAdapter = pAdapterInfo;
                    while (pAdapter)
                    {
                        CString strMac;
                        strMac.Format(_T("%02X-%02X-%02X-%02X-%02X-%02X"),
                            pAdapter->Address[0], pAdapter->Address[1], pAdapter->Address[2],
                            pAdapter->Address[3], pAdapter->Address[4], pAdapter->Address[5]);
                        LanMAC.Format(strMac);

                        pAdapter = pAdapter->Next; //下一个区域                                                                    
                    }
                }

                delete[] pAdapterInfo; //释放内存                                                                             
            }
        }

        FreeLibrary(hLib); //释放库                                                                                      

    }
    return true;
}