STORAGE_PROPERTY_QUERY storagePropertyQuery;
ZeroMemory(&storagePropertyQuery, sizeof(STORAGE_PROPERTY_QUERY));
storagePropertyQuery.PropertyId = StorageDeviceProperty;
storagePropertyQuery.QueryType = PropertyStandardQuery;

// Get the necessary output buffer size
STORAGE_DESCRIPTOR_HEADER storageDescriptorHeader = { 0 };
DWORD dwBytesReturned = 0;

if (!::DeviceIoControl(hDevice, IOCTL_STORAGE_QUERY_PROPERTY,
	&storagePropertyQuery, sizeof(STORAGE_PROPERTY_QUERY),
	&storageDescriptorHeader, sizeof(STORAGE_DESCRIPTOR_HEADER),
	&dwBytesReturned, NULL))
{
	dwRet = ::GetLastError();
	::CloseHandle(hDevice);
	return dwRet;
}

// Alloc the output buffer
const DWORD dwOutBufferSize = storageDescriptorHeader.Size;
BYTE* pOutBuffer = new BYTE[dwOutBufferSize];
ZeroMemory(pOutBuffer, dwOutBufferSize);

// Get the storage device descriptor
if (!::DeviceIoControl(hDevice, IOCTL_STORAGE_QUERY_PROPERTY,
	&storagePropertyQuery, sizeof(STORAGE_PROPERTY_QUERY),
	pOutBuffer, dwOutBufferSize,
	&dwBytesReturned, NULL))
{
	dwRet = ::GetLastError();
	delete[]pOutBuffer;
	::CloseHandle(hDevice);
	return dwRet;
}

STORAGE_DEVICE_DESCRIPTOR* pDeviceDescriptor = (STORAGE_DEVICE_DESCRIPTOR*) pOutBuffer;
char *strVID;
strVID = (char*)((char*)pDeviceDescriptor + pDeviceDescriptor->VendorIdOffset);

int aa = strlen(strVID);
TCHAR* sMsg = new TCHAR[aa + 1];

for (int i = 0; i<aa + 1; i++)
	{
		sMsg[i] = strVID[i];
	}

MessageBox(
	NULL,
	sMsg,
	_T("SerialNumber"),
	MB_OK | MB_ICONINFORMATION
);