Hola, espero me puedan ayudar necesito hacer una mini aplicación en C++ que me muestre todos los procesos que están activos en windows y los servicios que usa cada proceso algo así como lo que hace el process explorer según he investigado la forma de poder lograrlo es por el WMI pero no he podido encontrar mucha información encontré un código en C++ donde hacen la conexión COM y verifican el nombre de la computadora no se si alguien me puede decir si este código me sirve y que líneas puedo agregar para que me consulte los procesos y los servicios asociados a cada proceso.
#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 -------------------------- // 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 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; 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(); pclsObj->Release(); CoUninitialize();
return 0; // Program successfully completed. }
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