【C++】WMI获取系统硬件信息(CPU/DISK/NetWork etc)

官网找到一个例子，根据例子修改下可以获取很多信息

#define _WIN32_DCOM
#include <iostream>
using namespace std;
#include <comdef.h>
#include <Wbemidl.h>

#pragma comment(lib, "wbemuuid.lib")

int main(int argc, char **argv)
{
HRESULT hres;

// Step 1: --------------------------------------------------
// Initialize COM. ------------------------------------------

hres =  CoInitializeEx(0, COINIT_MULTITHREADED);
if (FAILED(hres))
{
cout << "Failed to initialize COM library. Error code = 0x"
<< hex << hres << endl;
return 1;                  // Program has failed.
}

// Step 2: --------------------------------------------------
// Set general COM security levels --------------------------

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 1;                    // Program has failed.
}

// Step 3: ---------------------------------------------------
// Obtain the initial locator to WMI -------------------------

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 1;                 // Program has failed.
}

// Step 4: -----------------------------------------------------
// Connect to WMI through the IWbemLocator::ConnectServer method

IWbemServices *pSvc = NULL;

// Connect to the root\cimv2 namespace with
// the current user and obtain pointer pSvc
// to make IWbemServices calls.
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 (for example, 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 1;                // Program has failed.
}

cout << "Connected to ROOT\\CIMV2 WMI namespace" << endl;

// Step 5: --------------------------------------------------
// Set security levels on the proxy -------------------------

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 1;               // Program has failed.
}

// Step 6: --------------------------------------------------
// Use the IWbemServices pointer to make requests of WMI ----

// For example, get the name of the operating system
IEnumWbemClassObject* pEnumerator = NULL;
hres = pSvc->ExecQuery(
bstr_t("WQL"),
bstr_t("SELECT * FROM Win32_OperatingSystem"),
WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY,
NULL,
&pEnumerator);

if (FAILED(hres))
{
cout << "Query for operating system name failed."
<< " Error code = 0x"
<< hex << hres << endl;
pSvc->Release();
pLoc->Release();
CoUninitialize();
return 1;               // Program has failed.
}

// Step 7: -------------------------------------------------
// Get the data from the query in step 6 -------------------

IWbemClassObject *pclsObj = NULL;
ULONG uReturn = 0;

while (pEnumerator)
{
HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1,
&pclsObj, &uReturn);

if(0 == uReturn)
{
break;
}

VARIANT vtProp;

// Get the value of the Name property
hr = pclsObj->Get(L"Name", 0, &vtProp, 0, 0);
wcout << " OS Name : " << vtProp.bstrVal << endl;
VariantClear(&vtProp);

pclsObj->Release();
}

// Cleanup
// ========

pSvc->Release();
pLoc->Release();
pEnumerator->Release();
CoUninitialize();

return 0;   // Program successfully completed.

}

下面列出了常用信息的类：

Win32_Processor // CPU 处理器

Win32_PhysicalMemory // 物理内存

Win32_Keyboard // 键盘

Win32_PointingDevice // 点输入设备，如鼠标

Win32_DiskDrive // 硬盘驱动器

Win32_CDROMDrive // 光盘驱动器

Win32_BaseBoard // 主板

Win32_BIOS // BIOS 芯片

Win32_ParallelPort // 并口

Win32_SerialPort // 串口

Win32_SoundDevice // 多媒体设置

Win32_USBController // USB 控制器

Win32_NetworkAdapter // 网络适配器

Win32_NetworkAdapterConfiguration // 网络适配器设置

Win32_Printer // 打印机

Win32_PrinterConfiguration // 打印机设置

Win32_PrintJob // 打印机任务

Win32_TCPIPPrinterPort // 打印机端口

Win32_POTSModem // MODEM

Win32_POTSModemToSerialPort // MODEM 端口

Win32_DesktopMonitor // 显示器

Win32_VideoController // 显卡细节。

Win32_VideoSettings // 显卡支持的显示模式。

Win32_TimeZone // 时区

Win32_SystemDriver // 驱动程序

Win32_DiskPartition // 磁盘分区

Win32_LogicalDisk // 逻辑磁盘

Win32_LogicalMemoryConfiguration // 逻辑内存配置

Win32_PageFile // 系统页文件信息

Win32_PageFileSetting // 页文件设置

Win32_BootConfiguration // 系统启动配置

Win32_OperatingSystem // 操作系统信息

Win32_StartupCommand // 系统自动启动程序

Win32_Service // 系统安装的服务

Win32_Group // 系统管理组

Win32_GroupUser // 系统组帐号

Win32_UserAccount // 用户帐号

Win32_Process // 系统进程

Win32_Thread // 系统线程

Win32_Share // 共享

Win32_NetworkClient // 已安装的网络客户端

Win32_NetworkProtocol // 已安装的网络协议
MSDN官网关于WMI的demo程序

MSDN官网关于WMI定义的所有类信息

PS:过两天我会把我修改的程序传上来，实现了 CPU编号、序列号、型号； 硬盘序列号；网卡MAC地址、IP地址、当前状态，这些信息的获取。