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(); //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,
,
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
, // Locale. NULL indicates current
NULL, // Security flags.
, // Authority (e.g. Kerberos)
, // 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 = ; while (pEnumerator)
{
HRESULT hr = pEnumerator->Next(WBEM_INFINITE, ,
&pclsObj, &uReturn);
if ( == uReturn)
{
break;
}
VARIANT vtProp;
VariantInit(&vtProp); hr = pclsObj->Get(L"SerialNumber", , &vtProp, , );//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, , 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"
}