how do I use WMI to format a disk volume

Question

0.00/5 (No votes)

See more:

the following is the code I used, but alway failed with error 0x8004101e(wbemErrIllegalOperation reference here WbemErrorEnum (Windows)[^]) when call

C++

hr = pclsObj->GetMethod(bstrMethod, 0, &pInParamsDefinition, &pOutParamsDefinition);

,I really don't know why, any suggestions is appreciated. thanks in advance.

C++

	HRESULT WMI_FormatVolume(BYTE volumeLetter, eFileSystem fs, const WCHAR* szLabel, bool bQuickFormat, UINT clusterSize, bool bEnableCompression)
	{
		HRESULT hr = S_OK;

		hr = CoInitializeEx( NULL, COINIT_APARTMENTTHREADED ); 
		if( FAILED(hr) )
			return hr;

		IWbemLocator *pLocator = NULL;
		IWbemServices *pSvc = NULL;
		do 
		{
			hr = CoInitializeSecurity( NULL, -1, NULL, NULL, RPC_C_AUTHN_LEVEL_DEFAULT, RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE, NULL);
			if( !SUCCEEDED(hr) )
				break;

			hr = CoCreateInstance(CLSID_WbemLocator, NULL, CLSCTX_INPROC_SERVER, IID_IWbemLocator, reinterpret_cast<LPVOID*>(&pLocator)); 
			if( !SUCCEEDED(hr) )
				break;

			hr = pLocator->ConnectServer(_bstr_t( L"ROOT\\CIMV2" ), NULL, NULL, NULL, 0, NULL, NULL, &pSvc);    
			if( !SUCCEEDED(hr) )
				break;

			hr = CoSetProxyBlanket(pSvc, RPC_C_AUTHN_WINNT, RPC_C_AUTHZ_NONE, NULL, RPC_C_AUTHN_LEVEL_CALL, RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE);
			if( !SUCCEEDED(hr) )
				break;

			_bstr_t bstrMethod(L"Format");
			_bstr_t bstrClassName(L"Win32_Volume");

// 			IWbemClassObject* pClass = NULL;
// 			hr = pSvc->GetObject(bstrClassName, 0, NULL, &pClass, NULL);
// 			if( !SUCCEEDED(hr) )
// 				break;
// 			
// 			IWbemClassObject* pInParamsDefinition = NULL;
// 			hr = pClass->GetMethod(bstrMethod, 0, &pInParamsDefinition, NULL);
// 			if( !SUCCEEDED(hr) )
// 				break;
// 
// 			IWbemClassObject* pClassInstance = NULL;
// 			hr = pInParamsDefinition->SpawnInstance(0, &pClassInstance);
// 			if( !SUCCEEDED(hr) )
// 				break;

			// execute QWL to query volume info
			IEnumWbemClassObject* pEnumerator = NULL;
			WCHAR szWQL[128] = L""; swprintf_s(szWQL, L"SELECT * FROM Win32_Volume WHERE DriveLetter = '%c:'", volumeLetter);
			hr = pSvc->ExecQuery(_bstr_t(L"WQL"), _bstr_t(szWQL), WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, NULL, &pEnumerator);
			if( !SUCCEEDED(hr) )
				break;

			while ( pEnumerator )
			{
				ULONG uReturn = 0;
				IWbemClassObject *pclsObj = NULL;
				hr = pEnumerator->Next(WBEM_INFINITE, 1, &pclsObj, &uReturn);
				if( !SUCCEEDED(hr) )
					break;

				IWbemClassObject* pInParamsDefinition = NULL;
				IWbemClassObject* pOutParamsDefinition = NULL;
				hr = pclsObj->GetMethod(bstrMethod, 0, &pInParamsDefinition, &pOutParamsDefinition);
				if( !SUCCEEDED(hr) )
					break;

				IWbemClassObject* pClassInstance = NULL;
				hr = pInParamsDefinition->SpawnInstance(0, &pClassInstance);
				if( !SUCCEEDED(hr) )
					break;

				_variant_t varFileSystem(GetFileSystemStr(fs));
				_variant_t varQuickFormat(bQuickFormat);
				_variant_t varClusterSize(clusterSize);
				_variant_t varLabel(szLabel);
				_variant_t varEnableCompression(bEnableCompression);
				hr = pClassInstance->Put(L"FileSystem", 0,	&varFileSystem, 0);
				hr = pClassInstance->Put(L"QuickFormat", 0, &varQuickFormat, 0);
				hr = pClassInstance->Put(L"ClusterSize", 0,	&varClusterSize, 0);
				hr = pClassInstance->Put(L"Label", 0, &varLabel, 0);
				hr = pClassInstance->Put(L"EnableCompression", 0, &varEnableCompression, 0);

				IWbemClassObject* pOutParams = NULL;
				hr = pSvc->ExecMethod(bstrClassName, bstrMethod, 0, NULL, pClassInstance, &pOutParams, NULL);
				if( !SUCCEEDED(hr) )
					break;
			}

		} while ( 0 );

		if ( NULL != pLocator )
			pLocator->Release();

		if ( NULL != pSvc )
			pSvc->Release();

		CoUninitialize();

		return hr;
	}

Posted 25-Dec-15 21:04pm

BCN-163

Add a Solution

Comments

Mehdi Gholam 26-Dec-15 3:14am

Try running as an administrator.

BCN-163 27-Dec-15 22:34pm

3Q, but it's not the problem of previlege, after another google search, I sovled the problem.
I will post the solution later, hope it's helpful to others who encounter with the same problem like me.

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

BCN-163 · Accepted Answer · 2015-12-27T16:41:00

here is the right way to call Format use WMI. reference websites are as follow.
How to format a RAW disk in windows by C++ | wreckor[^]
blog.aaronballman.com/2011/07/calling-instance-methods-in-wmi/#comment-48687

C++

namespace Utility
{
	const WCHAR* GetFileSystemStr(eFileSystem fs)
	{
		switch ( fs )
		{
		case FS_FAT32:
			return L"FAT32";
		case FS_FAT:
			return L"FAT";
		case FS_NTFS:
		default:
			return L"NTFS";
		}
	}

	HRESULT WMI_FormatVolume(BYTE volumeLetter, const TCHAR* szLabel, int* pErrorCode, eFileSystem fs, bool bQuickFormat, LONG clusterSize, bool bEnableCompression)
	{
		HRESULT hr = S_OK;

		hr = CoInitializeEx(NULL, COINIT_APARTMENTTHREADED); 
		if( S_OK != hr )
			return hr;

		IWbemLocator *pLocator = NULL;
		IWbemServices *pService = NULL;
		IWbemClassObject* pClass = NULL;
		IWbemClassObject* pInParamsDefinition = NULL;
		IWbemClassObject* pClassInstance = NULL;
		IEnumWbemClassObject* pEnumerator = NULL;
		
		do
		{
			hr = CoInitializeSecurity( NULL, -1, NULL, NULL, RPC_C_AUTHN_LEVEL_DEFAULT, RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE, NULL);
			if( S_OK != hr )
				break;

			hr = CoCreateInstance(CLSID_WbemLocator, NULL, CLSCTX_INPROC_SERVER, IID_IWbemLocator, reinterpret_cast<lpvoid*>(&pLocator)); 
			if( S_OK != hr )
				break;

			hr = pLocator->ConnectServer(_bstr_t( L"ROOT\\CIMV2" ), NULL, NULL, NULL, 0, NULL, NULL, &pService);    
			if( S_OK != hr )
				break;

			hr = CoSetProxyBlanket(pService, RPC_C_AUTHN_WINNT, RPC_C_AUTHZ_NONE, NULL, RPC_C_AUTHN_LEVEL_CALL, RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE);
			if( S_OK != hr )
				break;

			_bstr_t bstrMethod(L"Format");
			_bstr_t bstrClassName(L"Win32_Volume");

                        // get class and method here
			hr = pService->GetObject(bstrClassName, 0, NULL, &pClass, NULL);
			if( S_OK != hr )
				break;
			
			hr = pClass->GetMethod(bstrMethod, 0, &pInParamsDefinition, NULL);
			if( S_OK != hr )
				break;

			hr = pInParamsDefinition->SpawnInstance(0, &pClassInstance);
			if( S_OK != hr )
				break;

			// execute QWL to query volume info
			WCHAR szWQL[128] = L""; swprintf_s(szWQL, L"SELECT * FROM Win32_Volume WHERE DriveLetter = '%c:'", volumeLetter);
			hr = pService->ExecQuery(_bstr_t(L"WQL"), _bstr_t(szWQL), WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, NULL, &pEnumerator);
			if( S_OK != hr )
				break;

			while ( pEnumerator )
			{
				ULONG uReturn = 0;
				IWbemClassObject* pVolumeObj = NULL;
				hr = pEnumerator->Next(WBEM_INFINITE, 1, &pVolumeObj, &uReturn);
				if ( 0 == uReturn )
					break;

				// set format param
				_variant_t varFileSystem(GetFileSystemStr(fs));
				_variant_t varQuickFormat(bQuickFormat);
				_variant_t varClusterSize(clusterSize);
				_variant_t varLabel(szLabel);
				_variant_t varEnableCompression(bEnableCompression);
				hr = pClassInstance->Put(L"FileSystem", 0,	&varFileSystem, 0);
				hr = pClassInstance->Put(L"QuickFormat", 0, &varQuickFormat, 0);
				hr = pClassInstance->Put(L"ClusterSize", 0,	&varClusterSize, 0);
				hr = pClassInstance->Put(L"Label", 0, &varLabel, 0);
				hr = pClassInstance->Put(L"EnableCompression", 0, &varEnableCompression, 0);

				// key!!! get class object 
				_variant_t var;
				hr = pVolumeObj->Get(L"__PATH", 0, &var, NULL, NULL);
				pVolumeObj->Release();

				if( S_OK != hr )
					break;

				IWbemClassObject* pOutParams = NULL;
				hr = pService->ExecMethod(var.bstrVal, bstrMethod, 0, NULL, pClassInstance, &pOutParams, NULL);
				if( S_OK != hr )
					break;

				_variant_t varReturnValue;
				pOutParams->Get(L"ReturnValue", 0, &varReturnValue, NULL, 0);
				pOutParams->Release();

				int formatResult = varReturnValue.intVal;
				if ( 0 != formatResult )
					hr = S_FALSE;

				if ( NULL != pErrorCode )
					*pErrorCode = formatResult;
			}

		} while( 0 );

		if ( NULL != pLocator )
			pLocator->Release();

		if ( NULL != pService )
			pService->Release();

		if ( NULL != pClass )
			pClass->Release();

		if ( NULL != pInParamsDefinition )
			pInParamsDefinition->Release();

		if ( NULL != pClassInstance )
			pClassInstance->Release();

		if ( NULL != pEnumerator )
			pEnumerator->Release();

		CoUninitialize();

		return hr;
	}

}