what is equivalent of CreateObject in c++?

See more:

VB

MFC

script

hello dears
i want convert this below code from vb to c++/mfc.

Set objNet = CreateObject("WScript.NetWork")
    c = c & "UserName: " & objNet.UserName & vbCrLf
    c = c & "ComputerName: " & objNet.ComputerName & vbCrLf
            c = c & "DomainName: " & objNet.UserDomain & vbCrLf

i use this below code in c++.
but i don't know how to get "UserName" or "ComputerName".

CoInitializeEx(0, COINIT_MULTITHREADED); 
CLSID clsid; 
HRESULT hr = CLSIDFromProgID(L"WScript.NetWork", &clsid);
if(FAILED(hr)) 
{ 
	printf("CLSIDFromProgID() failed");
	return;
} 
IDispatch *pWApp;
hr = CoCreateInstance(clsid, NULL, CLSCTX_ALL,IID_IUnknown, (void **)&pWApp);
if(FAILED(hr)) { 
	printf("CoCreateInstance() failed");
	return; 
}

DISPID dispID;
VARIANT pvResult;
LPOLESTR ptName=L"AddPrinterConnection";
unsigned int FAR* pctinfo;
pctinfo=new unsigned int FAR[1000];

/*
but when i run this two lines of code the program has error.
*/

pWApp->GetTypeInfoCount(pctinfo);

hr = pWApp->GetIDsOfNames(IID_NULL, &ptName, 1, LOCALE_USER_DEFAULT, &dispID);