IADs::GetInfoEx method (iads.h)

Článek
10/13/2021

The IADs::GetInfoEx method loads the values of specified properties of the ADSI object from the underlying directory store into the property cache.

Syntax

HRESULT GetInfoEx(
  [in] VARIANT vProperties,
  [in] long    lnReserved
);

Parameters

[in] vProperties

Array of null-terminated Unicode string entries that list the properties to load into the Active Directory property cache. Each property name must match one in this object's schema class definition.

[in] lnReserved

Reserved for future use. Must be set to zero.

Return value

This method supports the standard return values, as well as the following.

For more information, see ADSI Error Codes.

Remarks

The IADs::GetInfoEx method overwrites any previously cached values of the specified properties with those in the directory store. Therefore, any change made to the cache will be lost if IADs::SetInfo was not invoked before the call to IADs::GetInfoEx.

Use IADs::GetInfoEx to refresh values of the selected property in the property cache of an ADSI object. Use IADs::GetInfo to refresh all the property values.

For an ADSI container object, IADs::GetInfoEx caches only the property values of the container, but not those of the child objects.

Examples

The following code example shows how to use the IADs::GetInfoEx to obtain values of the selected properties, assuming that the desired property values can be found in the directory.

Dim x As IADs
On Error GoTo Cleanup

Set x = GetObject("LDAP://CN=JeffSmith,CN=Users,DC=Fabrikam,DC=com")
 
' Retrieve givenName and sn from the underlying directory storage.
' Cache should have givenName and sn values.
x.GetInfoEx Array("givenName", "sn"), 0 
Debug.Print x.Get("givenName")  ' Property is in the cache.
Debug.Print x.Get("sn")         ' Property is in the cache.
 
' If the "homePhone" property is not in the cache (in the next line), 
' GetInfo is called implicitly.
Debug.Print x.Get("homePhone")

Cleanup:
   If(Err.Number<>0) Then
      MsgBox("An error has occurred. " & Err.Number);
   End If

   Set x = Nothing

The following code example shows how to use the IADs::GetInfoEx to obtain values of the selected properties, assuming that the desired property values can be found in the directory. For brevity, error checking has been omitted.

IADs *pADs = NULL;
VARIANT var;
HRESULT hr = S_OK;
 
hr = ADsGetObject(L"WinNT://somecomputer,computer",
                  IID_IADs,
                  (void**)&pADs);

if(!(hr==S_OK)){return hr;} 

VariantInit(&var);
 
// Get "Owner" and "Division" attribute values.
LPWSTR pszAttrs[] = { L"Owner", L"Division" };
DWORD dwNumber = sizeof( pszAttrs ) /sizeof(LPWSTR);
hr = ADsBuildVarArrayStr( pszAttrs, dwNumber, &var );
hr = pADs->GetInfoEx(var, 0);
VariantClear(&var);
 
hr = pADs->Get(CComBSTR("Division"), &var);  
printf("    division   = %S\n", V_BSTR(&var));
VariantClear(&var);
hr = pADs->Get(CComBSTR("Owner"), &var);
printf("    owner      = %S\n", V_BSTR(&var));
VariantClear(&var);

if(pADs)
   pADs->Release();

Requirements

Requirement	Value
Minimum supported client	Windows Vista
Minimum supported server	Windows Server 2008
Target Platform	Windows
Header	iads.h
DLL	Activeds.dll

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