在C ++中调用WMI（Win32_LogicalDisk类）中的Chkdsk – >'参数无效'

您没有传递适当的值给classname参数

你必须使用像L"Win32_LogicalDisk.DeviceID=\"C:\""

总之，这是一个完整的示例控制台应用程序。

 #include "stdafx.h" #define _WIN32_DCOM #include <iostream> using namespace std; #include <comdef.h> #include <Wbemidl.h> # pragma comment(lib, "wbemuuid.lib") //CREDENTIAL structure //http://msdn.microsoft.com/en-us/library/windows/desktop/aa374788%28v=vs.85%29.aspx #define CRED_MAX_USERNAME_LENGTH 513 #define CRED_MAX_CREDENTIAL_BLOB_SIZE 512 #define CREDUI_MAX_USERNAME_LENGTH CRED_MAX_USERNAME_LENGTH #define CREDUI_MAX_PASSWORD_LENGTH (CRED_MAX_CREDENTIAL_BLOB_SIZE / 2) #pragma argsused int main(int argc, char* argv[]) { wchar_t pszName[CREDUI_MAX_USERNAME_LENGTH+1] = L"user"; wchar_t pszPwd[CREDUI_MAX_PASSWORD_LENGTH+1] = L"password"; BSTR strNetworkResource; //To use a WMI remote connection set localconn to false and configure the values of the pszName, pszPwd and the name of the remote machine in strNetworkResource bool localconn = true; strNetworkResource = localconn ? L"\\\\.\\root\\CIMV2" : L"\\\\remote--machine\\root\\CIMV2"; COAUTHIDENTITY *userAcct = NULL ; COAUTHIDENTITY authIdent; HRESULT hres; // Initialize COM. ------------------------------------------ hres = CoInitializeEx(0, COINIT_MULTITHREADED); if (FAILED(hres)) { cout << "Failed to initialize COM library. Error code = 0x" << hex << hres << endl; cout << _com_error(hres).ErrorMessage() << endl; cout << "press enter to exit" << endl; cin.get(); return 1; // Program has failed. } // Set general COM security levels -------------------------- if (localconn) 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 ); else hres = CoInitializeSecurity( NULL, -1, // COM authentication NULL, // Authentication services NULL, // Reserved RPC_C_AUTHN_LEVEL_DEFAULT, // Default authentication RPC_C_IMP_LEVEL_IDENTIFY, // 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; cout << _com_error(hres).ErrorMessage() << endl; CoUninitialize(); cout << "press enter to exit" << endl; cin.get(); return 1; // Program has failed. } // 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; cout << _com_error(hres).ErrorMessage() << endl; CoUninitialize(); cout << "press enter to exit" << endl; cin.get(); return 1; // Program has failed. } // Connect to WMI through the IWbemLocator::Connectserver method IWbemServices *pSvc = NULL; // Connect to the root\\CIMV2 namespace // and obtain pointer pSvc to make IWbemServices calls. if (localconn) hres = pLoc->Connectserver( _bstr_t(strNetworkResource), // 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 (eg Kerberos) 0, // Context object &pSvc // pointer to IWbemServices proxy ); else hres = pLoc->Connectserver( _bstr_t(strNetworkResource), // Object path of WMI namespace _bstr_t(pszName), // User name _bstr_t(pszPwd), // User password NULL, // Locale NULL, // Security flags NULL, // Authority NULL, // Context object &pSvc // IWbemServices proxy ); if (FAILED(hres)) { cout << "Could not connect. Error code = 0x" << hex << hres << endl; cout << _com_error(hres).ErrorMessage() << endl; pLoc->Release(); CoUninitialize(); cout << "press enter to exit" << endl; cin.get(); return 1; // Program has failed. } cout << "Connected to root\\CIMV2 WMI namespace" << endl; // Set security levels on the proxy ------------------------- if (localconn) 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 ); else { // Create COAUTHIDENTITY that can be used for setting security on proxy memset(&authIdent, 0, sizeof(COAUTHIDENTITY)); authIdent.PasswordLength = wcslen (pszPwd); authIdent.Password = (USHORT*)pszPwd; authIdent.User = (USHORT*)pszName; authIdent.UserLength = wcslen(pszName); authIdent.Domain = 0; authIdent.DomainLength = 0; authIdent.Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE; userAcct = &authIdent; hres = CoSetProxyBlanket( pSvc, // Indicates the proxy to set RPC_C_AUTHN_DEFAULT, // RPC_C_AUTHN_xxx RPC_C_AUTHZ_DEFAULT, // RPC_C_AUTHZ_xxx COLE_DEFAULT_PRINCIPAL, // server principal name RPC_C_AUTHN_LEVEL_PKT_PRIVACY, // RPC_C_AUTHN_LEVEL_xxx RPC_C_IMP_LEVEL_IMPERSONATE, // RPC_C_IMP_LEVEL_xxx userAcct, // client identity EOAC_NONE // proxy capabilities ); } if (FAILED(hres)) { cout << "Could not set proxy blanket. Error code = 0x" << hex << hres << endl; cout << _com_error(hres).ErrorMessage() << endl; pSvc->Release(); pLoc->Release(); CoUninitialize(); cout << "press enter to exit" << endl; cin.get(); return 1; // Program has failed. } // Use the IWbemServices pointer to make requests of WMI ---- BSTR MethodName = SysAllocString(L"Chkdsk"); BSTR ClassName = SysAllocString(L"Win32_LogicalDisk"); IWbemClassObject* pClass = NULL; hres = pSvc->GetObject(ClassName, 0, NULL, &pClass, NULL); IWbemClassObject* pInParamsDefinition = NULL; hres = pClass->GetMethod(MethodName, 0, &pInParamsDefinition, NULL); IWbemClassObject* pClassInstance = NULL; hres = pInParamsDefinition->SpawnInstance(0, &pClassInstance); VARIANT varCommand; // Execute Method IWbemClassObject* pOutParams = NULL; hres = pSvc->ExecMethod(L"Win32_LogicalDisk.DeviceID=\"C:\"", MethodName, 0, NULL, pClassInstance, &pOutParams, NULL); if (FAILED(hres)) { cout << "Could not execute method. Error code = 0x" << hex << hres << endl; cout << _com_error(hres).ErrorMessage() << endl; SysFreeString(ClassName); SysFreeString(MethodName); if (pClass) pClass->Release(); if (pInParamsDefinition) pInParamsDefinition->Release(); if (pOutParams) pOutParams->Release(); if (pSvc) pSvc->Release(); if (pLoc) pLoc->Release(); CoUninitialize(); cout << "press enter to exit" << endl; cin.get(); return 1; // Program has failed. } VARIANT varReturnValue; hres = pOutParams->Get(L"ReturnValue", 0, &varReturnValue, NULL, 0); if (!FAILED(hres)) wcout << "ReturnValue " << varReturnValue.intVal << endl; VariantClear(&varReturnValue); // Clean up SysFreeString(ClassName); SysFreeString(MethodName); if (pClass) pClass->Release(); if (pInParamsDefinition) pInParamsDefinition->Release(); if (pOutParams) pOutParams->Release(); if (pLoc) pLoc->Release(); if (pSvc) pSvc->Release(); CoUninitialize(); cout << "press enter to exit" << endl; cin.get(); return 0; } 

如果您对WMI和C ++不熟悉，可以尝试使用WMI Delphi Code Creator这样的工具，它可以帮助您创建用于访问WMI的C ++代码。