GROUP_POLICY_OBJECTA structure (userenv.h)

Article
02/22/2024

The GROUP_POLICY_OBJECT structure provides information about a GPO in a GPO list.

Syntax

typedef struct _GROUP_POLICY_OBJECTA {
  DWORD                        dwOptions;
  DWORD                        dwVersion;
  LPSTR                        lpDSPath;
  LPSTR                        lpFileSysPath;
  LPSTR                        lpDisplayName;
  CHAR                         szGPOName[50];
  GPO_LINK                     GPOLink;
  LPARAM                       lParam;
  struct _GROUP_POLICY_OBJECTA *pNext;
  struct _GROUP_POLICY_OBJECTA *pPrev;
  LPSTR                        lpExtensions;
  LPARAM                       lParam2;
  LPSTR                        lpLink;
} GROUP_POLICY_OBJECTA, *PGROUP_POLICY_OBJECTA;

Members

dwOptions

Specifies link options. This member can be one of the following values.

GPO_FLAG_DISABLE

This GPO is disabled.

GPO_FLAG_FORCE

Do not override the policy settings in this GPO with policy settings in a subsequent GPO.

dwVersion

Specifies the version number of the GPO.

lpDSPath

Pointer to a string that specifies the path to the directory service portion of the GPO.

lpFileSysPath

Pointer to a string that specifies the path to the file system portion of the GPO.

lpDisplayName

Pointer to the display name of the GPO.

szGPOName[50]

Pointer to a string that specifies a unique name that identifies the GPO.

GPOLink

Specifies the link information for the GPO. This member may be one of the following values.

GPLinkUnknown

No link information is available.

GPLinkMachine

The GPO is linked to a computer (local or remote).

GPLinkSite

The GPO is linked to a site.

GPLinkDomain

The GPO is linked to a domain.

GPLinkOrganizationalUnit

The GPO is linked to an organizational unit.

lParam

User-supplied data.

pNext

Pointer to the next GPO in the list.

pPrev

Pointer to the previous GPO in the list.

lpExtensions

Extensions that have stored data in this GPO. The format is a string of GUIDs grouped in brackets. For more information, see the following Remarks section.

lParam2

User-supplied data.

lpLink

Path to the Active Directory site, domain, or organization unit to which this GPO is linked. If the GPO is linked to the local GPO, this member is "Local".

Remarks

Each GPO could contain data that must be processed by multiple snap-in extensions. Therefore, the data in the lpExtensions member is organized as a series of GUIDs that identify the extensions and snap-in extensions. The data format is as follows:

[ext_guid1, snap_in_guid1, snap_in_guid2, ...] 
[ext_guid2, snap_in_guid3, snap_in_guid4, ...]

First, there is an opening bracket, "[", followed by the GUID of the extension. Next, you'll find one or more GUIDs identifying the snap-in extensions that have stored data in the GPO. After the last snap-in GUID for an extension, there is a closing bracket, "]". This pattern is repeated for the next extension.

Note

The userenv.h header defines GROUP_POLICY_OBJECT as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.

Requirements

Requirement	Value
Minimum supported client	Windows Vista
Minimum supported server	Windows Server 2008
Header	userenv.h

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