How To Determining the Domain of A User Through ADSI

MORE INFORMATION

1. Get the user object.
2. Get the ADsPath of the object's parent.
3. Verify the parent's class is "Domain".
4. Get the name of the parent object.

Sample Code

   /*++

   ATL is used to simplify the COM interface usage

   assert()'s are used instead of real error checking
   for readability.

   Build command line:<BR/>

       cl main.cpp adsiid.lib activeds.lib

   --*/ 

   #define UNICODE
   #define _UNICODE
   #include <windows.h>
   #include <activeds.h>
   #include <atlbase.h>
   #include <stdio.h>
   #include <assert.h>
   #include <atlimpl.cpp>

   #define RTN_OK      0
   #define RTN_USAGE   1
   #define RTN_ERROR   13

   extern "C" int wmain (int argc, wchar_t *argv[])
   {

       DWORD dwRes;
       CComPtr<IADsUser> pUser;
       CComPtr<IADs> pObject;
       CComBSTR strDomainPath, strUser, strDomain;
       CComBSTR strClass;
       HRESULT hr;

       // initialize COM
       // 
       hr = CoInitialize (NULL);
       assert (SUCCEEDED(hr));

       // check command line
       // 
       if (argc != 2) {
           printf ("Usage: %S <ADS path to domain user>\n", argv[0]);
           return (RTN_USAGE);
       }

       // get the user object
       // 
       hr = ADsGetObject (
                   argv[1],
                   IID_IADsUser,
                   reinterpret_cast<void**>(&pUser)
                   );
       assert (SUCCEEDED(hr));

       // get the user name
       // 
       hr = pUser->get_Name (&strUser);
       assert (SUCCEEDED(hr));

       // get the parent of the object
       // 
       hr = pUser->get_Parent (&strDomainPath);
       assert (SUCCEEDED (hr));

       hr = ADsGetObject (
                   strDomainPath,
                   IID_IADs,
                   reinterpret_cast<void**>(&pObject)
                   );
       assert (SUCCEEDED(hr));

       // verify that it's a domain - this could have been done by
       // getting an IADsDomain interface in the ADsGetObject call...
       // 
       hr = pObject->get_Class (&strClass);
       assert (SUCCEEDED(hr));

       assert (!wcscmp (TEXT("Domain"), strClass));

       // get the domain name
       // 
       hr = pObject->get_Name (&strDomain);
       assert (SUCCEEDED(hr));

       printf ("Domain of user %S is %S\n", strUser, strDomain);

       return (RTN_OK);
   }