最近由于项目的需要，需要在程序中获取机器的硬盘序列号和MAC地址等信息，在C#下，可以很容易的获得这些信息，但是在C++程序中感觉比较麻烦。经过百度，发现很多大虾都是通过WMI来获取这些硬件信息的，网上也有相关的代码，通过实际调试，也发现确实可以通过WMI来获取这些信息。前两天，在网上突然搜到一位大牛写的比较完整的程序，为了以后使用方便，就转载记录一下。同时，也会在大牛的代码中增加一些自己的注释，都是自己在实际使用过程中遇到的问题。
//WMI教程-WMI查询(WQL语言初步)
#include "stdafx.h" #define _WIN32_DCOM #include "stdafx.h" #include<iostream> #include<fstream> #include<string> #include "direct.h" #include <tchar.h> #include <time.h> #include <comdef.h> #include <Wbemidl.h> #include <conio.h> #include "atlstr.h" #include "atlbase.h" //#include "TcpCtl.h" //#include "winsock2.h" //#include "InitDll.h" using namespace std; # pragma comment(lib, "wbemuuid.lib") # pragma comment(lib, "ws2_32.lib") //通过WMI获取主板号 BOOL ManageWMIBord(char bord[]) { HRESULT hres; // Step 1: 初始化COM //hres = CoInitializeEx(0, COINIT_MULTITHREADED); //网上的代码都是使用这行语句进行初始化，但是我在实际使用中，发现也可以采用下面的语句进行初始化 hres = CoInitialize(0); //网上的代码是没有注释下面这个判断的，但是实际使用中发现，如果之前已经初始化成功了，在第二次初始化的时候，下面的代码就会导致返回false，所以，实际使用中我就注释掉了 //if (FAILED(hres)) //{ // cout << "Failed to initialize COM library. Error code = 0x" // << hex << hres << endl; // return false; // Program has failed. //} // Step 2: 设置COM的安全认证级别 //在实际使用过程中，我发现如果这一步不注释掉的话，程序总是返回false，注释掉之后程序反而可以正常运行，原因未知 // Note: If you are using Windows 2000, you need to specify - // the default authentication credentials for a user by using // a SOLE_AUTHENTICATION_LIST structure in the pAuthList ---- // parameter of CoInitializeSecurity ------------------------ ////hres = CoInitializeSecurity( //// NULL, //// -1, // COM authentication //// NULL, // Authentication services //// NULL, // Reserved //// RPC_C_AUTHN_LEVEL_DEFAULT, // Default authentication //// RPC_C_IMP_LEVEL_IMPERSONATE, // Default Impersonation //// NULL, // Authentication info //// EOAC_NONE, // Additional capabilities //// NULL // Reserved //// ); //// ////if (FAILED(hres)) ////{ //// cout << "Failed to initialize security. Error code = 0x" //// << hex << hres << endl; //// CoUninitialize(); //// return false; // Program has failed. ////} // Step 3: 获得WMI连接COM接口 IWbemLocator *pLoc = NULL; hres = CoCreateInstance( CLSID_WbemLocator, 0, CLSCTX_INPROC_SERVER, IID_IWbemLocator, (LPVOID *)&pLoc); if (FAILED(hres)) { cout << "Failed to create IWbemLocator object." << " Err code = 0x" << hex << hres << endl; CoUninitialize(); return false; // Program has failed. } // Step 4: 通过连接接口连接WMI的内核对象名"ROOT//CIMV2" IWbemServices *pSvc = NULL; hres = pLoc->ConnectServer( _bstr_t(L"ROOT\CIMV2"), // Object path of WMI namespace NULL, // User name. NULL = current user NULL, // User password. NULL = current 0, // Locale. NULL indicates current NULL, // Security flags. 0, // Authority (e.g. Kerberos) 0, // Context object &pSvc // pointer to IWbemServices proxy ); if (FAILED(hres)) { cout << "Could not connect. Error code = 0x" << hex << hres << endl; pLoc->Release(); CoUninitialize(); return false; // Program has failed. } //cout << "Connected to ROOT\CIMV2 WMI namespace" << endl; // Step 5: 设置请求代理的安全级别 hres = CoSetProxyBlanket( pSvc, // Indicates the proxy to set RPC_C_AUTHN_WINNT, // RPC_C_AUTHN_xxx RPC_C_AUTHZ_NONE, // RPC_C_AUTHZ_xxx NULL, // Server principal name RPC_C_AUTHN_LEVEL_CALL, // RPC_C_AUTHN_LEVEL_xxx RPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx NULL, // client identity EOAC_NONE // proxy capabilities ); if (FAILED(hres)) { cout << "Could not set proxy blanket. Error code = 0x" << hex << hres << endl; pSvc->Release(); pLoc->Release(); CoUninitialize(); return false; // Program has failed. } // Step 6: 通过请求代理来向WMI发送请求---- // For example, get the name of the operating system IEnumWbemClassObject* pEnumerator = NULL; hres = pSvc->ExecQuery( bstr_t("WQL"), //bstr_t("SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled = 'TRUE'"), bstr_t("SELECT * FROM Win32_BaseBoard"),//只需要通过修改这里的查询语句，就可以实现对MAC地址等其他信息的查询 WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, NULL, &pEnumerator); if (FAILED(hres)) { cout << "Query for Network Adapter Configuration failed." << " Error code = 0x" << hex << hres << endl; pSvc->Release(); pLoc->Release(); CoUninitialize(); return false; // Program has failed. } // Step 7: 循环枚举所有的结果对象 IWbemClassObject *pclsObj; ULONG uReturn = 0; while (pEnumerator) { HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1, &pclsObj, &uReturn); if (0 == uReturn) { break; } VARIANT vtProp; VariantInit(&vtProp); hr = pclsObj->Get(L"SerialNumber", 0, &vtProp, 0, 0);//查询不同的硬件信息，除了修改上面的查询语句，这里的字段也要修改 if (!FAILED(hr)) { CW2A tmpstr1(vtProp.bstrVal); strcpy_s(bord, 200, tmpstr1);//这里的200是可调的，自己根据实际情况设置，但是肯定不能大于bord的长度 //cout << "BordSN:" << sn << endl; } VariantClear(&vtProp); }//end while // 释放资源 pSvc->Release(); pLoc->Release(); pEnumerator->Release(); pclsObj->Release(); CoUninitialize(); return true; // Program successfully completed. } //附： WQL查询语句 const T_WQL_QUERY szWQLQuery[] = {
// 查询有效IP地址 这句在WMI Explorer中会报错,不知道为什么
"select * from Win32_NetworkAdapterConfiguration WHERE (DefaultIPGateway IS NOT NULL)"
// 网卡原生MAC地址 "SELECT * FROM Win32_NetworkAdapter WHERE (MACAddress IS NOT NULL) AND (NOT (PNPDeviceID LIKE 'ROOT%'))", L"PNPDeviceID", // 硬盘序列号 "SELECT * FROM Win32_DiskDrive WHERE (SerialNumber IS NOT NULL) AND (MediaType LIKE 'Fixed hard disk%')", L"SerialNumber", // 主板序列号 "SELECT * FROM Win32_BaseBoard WHERE (SerialNumber IS NOT NULL)", L"SerialNumber", // 处理器ID "SELECT * FROM Win32_Processor WHERE (ProcessorId IS NOT NULL)", L"ProcessorId", // BIOS序列号 "SELECT * FROM Win32_BIOS WHERE (SerialNumber IS NOT NULL)", L"SerialNumber", // 主板型号 "SELECT * FROM Win32_BaseBoard WHERE (Product IS NOT NULL)", L"Product", // 网卡当前MAC地址 "SELECT * FROM Win32_NetworkAdapter WHERE (MACAddress IS NOT NULL) AND (NOT (PNPDeviceID LIKE 'ROOT%'))", L"MACAddress", //当前机器的型号和厂商 "SELECT * FROM Win32_computersystem", L"Manufacturer", L"Model" }