WMI getting IP-Address [modified]

[Marcel Vogt]

Hi, i'm using WMI to get some Parameters of the local Computer. Here is a Sample Code Snippet:

    pEnumerator = NULL;
    hres = pSvc
			->ExecQuery(
        bstr_t("WQL"), 
        bstr_t("SELECT * FROM Win32_BIOS"),
        WBEM_FLAG_FORWARD_ONLY | WBEM_FLAG_RETURN_IMMEDIATELY, 
        NULL,
        &pEnumerator);

    *pclsObj;    
		uReturn = 0;
   
    while (pEnumerator)
    {
        HRESULT hr = pEnumerator->Next(WBEM_INFINITE, 1, 
            &pclsObj, &uReturn);

        if(0 == uReturn)
        {
            break;
        }

	VARIANT vtprop;
	hr = pclsObj->Get(L"SerialNumber", 0, &vtprop, 0, 0);
	wcout << vtprop.bstrVal << endl;

        VariantClear(&vtprop);

        pclsObj->Release();
    }

This works very well. How must i change this, to show the IP-Adressses of the Computer? Only with Changing to "Win32_NetworkAdapterConfiguration" and "IPAddress" instead of "SerialNumber" doesn't works. I think, because IPAdress is an Array in WMI?

modified on Saturday, June 19, 2010 12:50 PM

[Baltoro]

Go over to Microsoft and download: WMI CIM Studio. With it you can search the entire WMI on your local machine. But, and I'm trying to remember, I think the IP address is written to the Registry when you connect to a Wireless network. I'd have to look it up. Get back tp you.

[Marcel Vogt]

Sorry but this is not the solution for my Problem. I need help with my C++-Code above. That's why i have asked in this forum and not anywhere else ;)

[Baltoro]

OK

[Luc Pattyn]

Hi, it is a bit more complex than you seem to expect. You need Win32_NetworkAdapterConfiguration. It will return several rows, some have IPEnabled set to true; those should correspond to physical network adapters, which each can have one or more IP addresses; these are returned as a string array through IPAddress. A little Google action should turn up sample code in the language of your choice. :)

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[Lost User]

Marcel Vogt wrote:

How must i change this, to show the IP-Adressses of the Computer? Only with Changing to "Win32_NetworkAdapterConfiguration" and "IPAddress" instead of "SerialNumber" doesn't works.

I believe that using WMI is the easier but not the best option to work with IP addresses.You have entire IP helper API right here http://msdn.microsoft.com/en-us/library/aa366071(VS.85).aspx[^] which contains set of functions for IP management.For example GetIpAddrTable function will help you to examine IP-v4 mapping table.

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