求助通过WMI获取电脑内存的根数、大小、位置

#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;



    // 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.

    }



    // Initialize 

    hres =  CoInitializeSecurity(

        NULL,     

        -1,      // COM negotiates service                  

        NULL,    // Authentication services

        NULL,    // Reserved

        RPC_C_AUTHN_LEVEL_DEFAULT,    // authentication

        RPC_C_IMP_LEVEL_IMPERSONATE,  // 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.

    }



    // Obtain the initial locator to Windows Management

    // on a particular host computer.

    IWbemLocator *pLoc = 0;



    hres = CoCreateInstance(

        CLSID_WbemLocator,             

        0, 

        CLSCTX_INPROC_SERVER, 

        IID_IWbemLocator, (LPVOID *) &pLoc);

 

    if (FAILED(hres))

    {

        cout << "Failed to create IWbemLocator object. "

            << "Error code = 0x"

            << hex << hres << endl;

        CoUninitialize();

        return 1;       // Program has failed.

    }



    IWbemServices *pSvc = 0;



    // 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"), // WMI namespace

        NULL,                    // User name

        NULL,                    // User password

        0,                       // Locale

        NULL,                    // Security flags                 

        0,                       // Authority       

        0,                       // Context object

        &pSvc                    // 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;



    // Set the IWbemServices proxy so that impersonation

    // of the user (client) occurs.

    hres = CoSetProxyBlanket(

       

       pSvc,                         // the proxy to set

       RPC_C_AUTHN_WINNT,            // authentication service

       RPC_C_AUTHZ_NONE,             // authorization service

       NULL,                         // Server principal name

       RPC_C_AUTHN_LEVEL_CALL,       // authentication level

       RPC_C_IMP_LEVEL_IMPERSONATE,  // impersonation level

       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.

    }





    // Use the IWbemServices pointer to make requests of WMI. 

    // Make requests here:



    // For example, query for all the running processes

    IEnumWbemClassObject* pEnumerator = NULL;

    hres = pSvc->ExecQuery(

        bstr_t("WQL"), 

        bstr_t("SELECT * FROM Win32_Process"),

        WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, 

        NULL,

        &pEnumerator);

    

    if (FAILED(hres))

    {

        cout << "Query for processes failed. "

             << "Error code = 0x" 

             << hex << hres << endl;

        pSvc->Release();

        pLoc->Release();     

        CoUninitialize();

        return 1;               // Program has failed.

    }

    else

    { 

        IWbemClassObject *pclsObj;

        ULONG uReturn = 0;

   

        while (pEnumerator)

        {

            hres = pEnumerator->Next(WBEM_INFINITE, 1, 

                &pclsObj, &uReturn);



            if(0 == uReturn)

            {

                break;

            }



            VARIANT vtProp;



            // Get the value of the Name property

            hres = pclsObj->Get(L"Name", 0, &vtProp, 0, 0);

            wcout << "Process Name : " << vtProp.bstrVal << endl;

            VariantClear(&vtProp);

        }

         

    }

 

    // Cleanup

    // ========



    pSvc->Release();

    pLoc->Release();     

    CoUninitialize();



    return 0;   // Program successfully completed.

}

#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; // 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. } // Initialize hres = CoInitializeSecurity( NULL, -1, // COM negotiates service NULL, // Authentication services NULL, // Reserved RPC_C_AUTHN_LEVEL_DEFAULT, // authentication RPC_C_IMP_LEVEL_IMPERSONATE, // 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. } // Obtain the initial locator to Windows Management // on a particular host computer. IWbemLocator *pLoc = 0; hres = CoCreateInstance( CLSID_WbemLocator, 0, CLSCTX_INPROC_SERVER, IID_IWbemLocator, (LPVOID *) &pLoc); if (FAILED(hres)) { cout << "Failed to create IWbemLocator object. " << "Error code = 0x" << hex << hres << endl; CoUninitialize(); return 1; // Program has failed. } IWbemServices *pSvc = 0; // 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"), // WMI namespace NULL, // User name NULL, // User password 0, // Locale NULL, // Security flags 0, // Authority 0, // Context object &pSvc // 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; // Set the IWbemServices proxy so that impersonation // of the user (client) occurs. hres = CoSetProxyBlanket( pSvc, // the proxy to set RPC_C_AUTHN_WINNT, // authentication service RPC_C_AUTHZ_NONE, // authorization service NULL, // Server principal name RPC_C_AUTHN_LEVEL_CALL, // authentication level RPC_C_IMP_LEVEL_IMPERSONATE, // impersonation level 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. } // Use the IWbemServices pointer to make requests of WMI. // Make requests here: // For example, query for all the running processes IEnumWbemClassObject* pEnumerator = NULL; hres = pSvc->ExecQuery( bstr_t("WQL"), bstr_t("SELECT * FROM Win32_Process"), WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, NULL, &pEnumerator); if (FAILED(hres)) { cout << "Query for processes failed. " << "Error code = 0x" << hex << hres << endl; pSvc->Release(); pLoc->Release(); CoUninitialize(); return 1; // Program has failed. } else { IWbemClassObject *pclsObj; ULONG uReturn = 0; while (pEnumerator) { hres = pEnumerator->Next(WBEM_INFINITE, 1, &pclsObj, &uReturn); if(0 == uReturn) { break; } VARIANT vtProp; // Get the value of the Name property hres = pclsObj->Get(L"Name", 0, &vtProp, 0, 0); wcout << "Process Name : " << vtProp.bstrVal << endl; VariantClear(&vtProp); } } // Cleanup // ======== pSvc->Release(); pLoc->Release(); CoUninitialize(); return 0; // Program successfully completed. }