VC++获取系统信息/获取OS/获取MAC/获取本地IP/判断是否为网吧

现在很多软件都有统计系统了，说好听点叫做统计用户习惯，改良产品，不好听点，呵呵，我就不说了。
核心我已经封装成类了，可以获取操作系统版本，MAC地址，本地IP地址，以及判定是否为网吧。

核心代码如下：

//PCInfo.h#pragma once#include <string>class CPCInfo{public:CPCInfo(void);~CPCInfo(void);private:// 获取MAC地址std::string& GetMAC();// 获取IP地址std::string& GetIP();// 获取操作系统std::string& GetOS();// 是否为网吧bool IsInternetBar();public:std::string m_strIP;std::string m_strMAC;std::string m_strOS;bool m_bIsInternetBar;};

//PCInfo.cpp#include "PCInfo.h"#include <winsock2.h>#include <Iphlpapi.h>#pragma  comment(lib,"Iphlpapi.lib")#include <winsock2.h>#pragma comment(lib,"ws2_32.lib")using std::string;void byte2Hex(unsigned char bData,unsigned char hex[]){int high=bData/16,low =bData %16;hex[0] = (high <10)?('0'+high):('A'+high-10);hex[1] = (low <10)?('0'+low):('A'+low-10);}bool getLocalMac1(unsigned char *mac) //获取本机MAC址 {ULONG ulSize=0;PIP_ADAPTER_INFO pInfo=NULL;int temp = GetAdaptersInfo(pInfo,&ulSize);//第一处调用，获取缓冲区大小pInfo=(PIP_ADAPTER_INFO)malloc(ulSize);temp = GetAdaptersInfo(pInfo,&ulSize);int iCount=0;while(pInfo)//遍历每一张网卡{//  pInfo->Address MAC址for(int i=0;i<(int)pInfo->AddressLength;i++){byte2Hex(pInfo->Address[i],&mac[iCount]);iCount+=2;if(i<(int)pInfo->AddressLength-1){mac[iCount++] = ':';}else{mac[iCount++] = '#';}}break;pInfo = pInfo->Next;}free(pInfo);if(iCount >0){mac[--iCount]='\0';return true;}else{return false;}}//通过GetAdaptersInfo函数（适用于Windows 2000及以上版本）bool getLocalMac2(unsigned char *mac){bool ret = false;ULONG ulOutBufLen = sizeof(IP_ADAPTER_INFO);PIP_ADAPTER_INFO pAdapterInfo = (IP_ADAPTER_INFO*)malloc(sizeof(IP_ADAPTER_INFO));if(pAdapterInfo == NULL)return false;// Make an initial call to GetAdaptersInfo to get the necessary size into the ulOutBufLen variableif(GetAdaptersInfo(pAdapterInfo, &ulOutBufLen) == ERROR_BUFFER_OVERFLOW) {free(pAdapterInfo);pAdapterInfo = (IP_ADAPTER_INFO *)malloc(ulOutBufLen);if (pAdapterInfo == NULL) return false;}if(GetAdaptersInfo(pAdapterInfo, &ulOutBufLen) == NO_ERROR){for(PIP_ADAPTER_INFO pAdapter = pAdapterInfo; pAdapter != NULL; pAdapter = pAdapter->Next){// 确保是以太网if(pAdapter->Type != MIB_IF_TYPE_ETHERNET)continue;// 确保MAC地址的长度为 00-00-00-00-00-00if(pAdapter->AddressLength != 6)continue;char acMAC[20] = {0};sprintf(acMAC, "%02X:%02X:%02X:%02X:%02X:%02X",int (pAdapter->Address[0]),int (pAdapter->Address[1]),int (pAdapter->Address[2]),int (pAdapter->Address[3]),int (pAdapter->Address[4]),int (pAdapter->Address[5]));memcpy(mac,acMAC,20);ret = true;break;}}free(pAdapterInfo);return ret;}//通过GetAdaptersAddresses函数（适用于Windows XP及以上版本）bool getLocalMac3(unsigned char *mac){bool ret = false;ULONG outBufLen = sizeof(IP_ADAPTER_ADDRESSES);PIP_ADAPTER_ADDRESSES pAddresses = (IP_ADAPTER_ADDRESSES*)malloc(outBufLen);if (pAddresses == NULL) return false;// Make an initial call to GetAdaptersAddresses to get the necessary size into the ulOutBufLen variableif(GetAdaptersAddresses(AF_UNSPEC, 0, NULL, pAddresses, &outBufLen) == ERROR_BUFFER_OVERFLOW){free(pAddresses);pAddresses = (IP_ADAPTER_ADDRESSES*)malloc(outBufLen);if (pAddresses == NULL) return false;}if(GetAdaptersAddresses(AF_UNSPEC, 0, NULL, pAddresses, &outBufLen) == NO_ERROR){// If successful, output some information from the data we receivedfor(PIP_ADAPTER_ADDRESSES pCurrAddresses = pAddresses; pCurrAddresses != NULL; pCurrAddresses = pCurrAddresses->Next){// 确保MAC地址的长度为 00-00-00-00-00-00if(pCurrAddresses->PhysicalAddressLength != 6)continue;char acMAC[20] = {0};sprintf(acMAC, "%02X:%02X:%02X:%02X:%02X:%02X",int (pCurrAddresses->PhysicalAddress[0]),int (pCurrAddresses->PhysicalAddress[1]),int (pCurrAddresses->PhysicalAddress[2]),int (pCurrAddresses->PhysicalAddress[3]),int (pCurrAddresses->PhysicalAddress[4]),int (pCurrAddresses->PhysicalAddress[5]));memcpy(mac,acMAC,20);ret = true;break;}} free(pAddresses);return ret;}bool GetLocalIP(char* ip){//1.初始化wsaWSADATA wsaData;int ret=WSAStartup(MAKEWORD(2,2),&wsaData);if (ret!=0){return false;}//2.获取主机名char hostname[256];ret=gethostname(hostname,sizeof(hostname));if (ret==SOCKET_ERROR){return false;}//3.获取主机ipHOSTENT* host=gethostbyname(hostname);if (host==NULL){return false;}//4.转化为char*并拷贝返回strcpy(ip,inet_ntoa(*(in_addr*)*host->h_addr_list));return true;}CPCInfo::CPCInfo(void):m_bIsInternetBar(false){m_strIP = GetIP();m_strMAC = GetMAC();m_strOS = GetOS();m_bIsInternetBar = IsInternetBar();}//读取操作系统的名称string GetSystemName(){SYSTEM_INFO info;        //用SYSTEM_INFO结构判断64位AMD处理器 GetSystemInfo(&info);    //调用GetSystemInfo函数填充结构 OSVERSIONINFOEX os; os.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);   string osname = "unknown OperatingSystem.";if(GetVersionEx((OSVERSIONINFO *)&os)){ //下面根据版本信息判断操作系统名称 switch(os.dwMajorVersion)//判断主版本号{case 4:switch(os.dwMinorVersion)//判断次版本号 { case 0:if(os.dwPlatformId==VER_PLATFORM_WIN32_NT)osname = "Microsoft Windows NT 4.0"; //1996年7月发布 else if(os.dwPlatformId==VER_PLATFORM_WIN32_WINDOWS)osname = "Microsoft Windows 95";break;case 10:osname = "Microsoft Windows 98";break;case 90:osname = "Microsoft Windows Me";break;}break;case 5:switch(os.dwMinorVersion)//再比较dwMinorVersion的值{ case 0:osname = "Microsoft Windows 2000";//1999年12月发布break;case 1:osname = "Microsoft Windows XP";//2001年8月发布break;case 2:if(os.wProductType==VER_NT_WORKSTATION && info.wProcessorArchitecture==PROCESSOR_ARCHITECTURE_AMD64){osname = "Microsoft Windows XP Professional x64 Edition";}else if(GetSystemMetrics(SM_SERVERR2)==0)osname = "Microsoft Windows Server 2003";//2003年3月发布 else if(GetSystemMetrics(SM_SERVERR2)!=0)osname = "Microsoft Windows Server 2003 R2";break;}break;case 6:switch(os.dwMinorVersion){case 0:if(os.wProductType == VER_NT_WORKSTATION)osname = "Microsoft Windows Vista";elseosname = "Microsoft Windows Server 2008";//服务器版本 break;case 1:if(os.wProductType == VER_NT_WORKSTATION)osname = "Microsoft Windows 7";elseosname = "Microsoft Windows Server 2008 R2";break;case 2:if(os.wProductType == VER_NT_WORKSTATION)osname = "Microsoft Windows 8";elseosname = "Microsoft Windows Server 2012";break;case 3:if(os.wProductType == VER_NT_WORKSTATION)osname = "Microsoft Windows 8.1";elseosname = "Microsoft Windows Server 2012 R2";break;}break;case 10:switch(os.dwMinorVersion){case 0:if(os.wProductType == VER_NT_WORKSTATION)osname = "Microsoft Windows 10";elseosname = "Microsoft Windows Server 2016 Technical Preview";//服务器版本 break;}break;}}//if(GetVersionEx((OSVERSIONINFO *)&os))//https://msdn.microsoft.com/en-us/library/ms724832.aspxreturn osname;} CPCInfo::~CPCInfo(void){}// 获取MAC地址string& CPCInfo::GetMAC(){unsigned char szMac[20] = {0};//为了确保获取到MAC地址，通过三种方式来获取if(!getLocalMac3(szMac)){if(!getLocalMac2(szMac)){getLocalMac1(szMac);}}m_strMAC.empty();m_strMAC.append((const char*)szMac,sizeof(szMac));return m_strMAC;}// 获取IP地址string& CPCInfo::GetIP(){char ip[30] = {'\0'};if (GetLocalIP(ip)){m_strIP.empty();m_strIP.append(ip,sizeof(ip));}return m_strIP;}// 获取操作系统string& CPCInfo::GetOS(){m_strOS = GetSystemName();return m_strOS;}bool IsHaveKey(HKEY hKey, char* lpSubKey){HKEY phkResult = 0;if (ERROR_SUCCESS == RegOpenKeyExA(hKey, lpSubKey, 0, KEY_QUERY_VALUE, &phkResult)){RegCloseKey(phkResult);return true;}return false;}// 是否为网吧bool CPCInfo::IsInternetBar(){char* NetRoomKey[] ={"SOFTWARE\\Hintsoft\\PubwinClient","SOFTWARE\\Hintsoft\\pubwin","SOFTWARE\\Sicent\\wx2004Clt","SOFTWARE\\MpSoft\\smenu","SOFTWARE\\Microsoft\\jingzu","SOFTWARE\\iCafe8","SOFTWARE\\Goyoo\\i8desk","SOFTWARE\\Hintsoft1\\XunShanPro","SOFTWARE\\SyncExpertNetBar","SOFTWARE\\EYOOCLIENTSTATUS","SOFTWARE\\Richtech","SOFTWARE\\\u676d\u5dde\u987a\u7f51\u4fe1\u606f\u6280\u672f\u6709\u9650\u516c\u53f8\\\u7f51\u7ef4\u5927\u5e08\u874c\u86aa\u5a31\u4e50\u5e73\u53f0","SOFTWARE\\iCafe8","SOFTWARE\\Sicent\\wx2004Clt","SOFTWARE\\Sicent\\WxAdv","SOFTWARE\\Grabsun\\Netsense",};for (int i = 0; i < sizeof(NetRoomKey) / sizeof(char*); i++){if (IsHaveKey(HKEY_LOCAL_MACHINE, NetRoomKey[i])){m_bIsInternetBar = true;break;}}return m_bIsInternetBar;}

有个使用注意事项，不注意会导致Win8以上系统获取到的操作系统信息错误。
具体注意事项在这篇文章中有详细说明：http://blog.csdn.net/sunflover454/article/details/51525179
执行结果如下：

测试工程为VS2010 MFC项目,下载链接：http://download.csdn.net/detail/sunflover454/9534014