使用C 中的Win32_Process.getowner

在一会儿杂乱无章的一段时间后，我终于找出了自己问题的答案。问题是您需要指定要执行该方法反对的对象。为此，您调用getObject（" __路径"，...）获取通往当前枚举对象的路径，然后将getObject（a bstr）的结果传递给execmethod作为第一个参数。这说明了该方法，在我的情况下，您要执行的内容。这是我写的一个示例程序，该程序丢弃了当前的流程列表及其所有者。

#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 rootcimv2 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.
	}
	BSTR MethodName = SysAllocString(L"GetOwner");
	BSTR ClassName = SysAllocString(L"Win32_Process");
	// get the object containing our desired method
	IWbemClassObject* pClass = NULL;
	hres = pSvc->GetObject(ClassName, 0, NULL, &pClass, NULL);
	if (FAILED(hres))
	{
		printf("GetObject hres = %08xn", hres);
		pSvc->Release();
		pLoc->Release();
		CoUninitialize();
		return 1;
	}
	
	// get the desired method
	// in our case, we only need pmethodGetOwner since GetOwner really only has output
	IWbemClassObject* pmethodGetOwner = NULL;
	hres = pClass->GetMethod(MethodName, 0, NULL, &pmethodGetOwner);
	if (FAILED(hres))
	{
		printf("GetMethod hres = %08xn", hres);
		pSvc->Release();
		pLoc->Release();
		CoUninitialize();
		return 1;
	}
	// spawn the instance of the method
	IWbemClassObject* pInInst = NULL;
	hres = pmethodGetOwner->SpawnInstance(0, &pInInst);
	if (FAILED(hres))
	{
		printf("SpawnInstance hres = %08xn", hres);
		pSvc->Release();
		pLoc->Release();
		CoUninitialize();
		return 1;
	}
	// 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_Process"),
		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;
		VARIANT vtProcName;
		VARIANT vtDomain;
		VARIANT vtUsername;
		// Get the value of the Name property
		hr = pclsObj->Get(L"Name", 0, &vtProcName, 0, 0);
		if (FAILED(hres))
		{
			printf("Failed to get the process's namen");
			pclsObj->Release();
			continue;
		}
		// Get the PATH to the object in question
		// the result in vtProp is similar to '\name_of_computerROOTCIMV2:Win32_Process.Handle="pid_of_process"'
		hr = pclsObj->Get(L"__PATH", 0, &vtProp, 0, 0);
		if (FAILED(hres))
		{
			printf("Failed to get the path to the objectn");
			pclsObj->Release();
			continue;
		}
		// Execute Method against the object defined by the __PATH variable
		hres = pSvc->ExecMethod(vtProp.bstrVal, MethodName, 0, NULL, NULL, &pmethodGetOwner, NULL);
		if (FAILED(hres))
		{
			wprintf(L"Failed to execute the method against %sn", vtProp.bstrVal);
			pclsObj->Release();
			continue;
		}
		// extract the results
		hres = pmethodGetOwner->Get(L"User", 0, &vtUsername, NULL, 0);
		if (FAILED(hres))
		{
			printf("Failed to get the owner's namen");
			pclsObj->Release();
			continue;
		}
		pmethodGetOwner->Get(L"Domain", 0, &vtDomain, NULL, 0);
		if (FAILED(hres))
		{
			printf("Failed to get the owner's domainn");
			pclsObj->Release();
			continue;
		}
		// print the output to screen
		wprintf(L"Process: %s. Domain\User: %s\%sn", V_BSTR(&vtProcName), V_BSTR(&vtDomain), V_BSTR(&vtUsername));
		// release/cleanup resources we used this go around
		VariantClear(&vtProcName);
		VariantClear(&vtProp);
		VariantClear(&vtDomain);
		VariantClear(&vtUsername);
		pclsObj->Release();
	}
	// Cleanup
	// ========
	pSvc->Release();
	pLoc->Release();
	pEnumerator->Release();
	CoUninitialize();
	return 0;   // Program successfully completed.
}

我能够弄清楚所有这些，这要归功于2002年的Google组上的随机发布（"这是WBEM WMI WMI C 示例"）。

我希望将来对其他人有帮助。