GetAclInformation

The GetAclInformation function retrieves information about an access-control list (ACL).

BOOL GetAclInformation(
  PACL pAcl,                                   // access-control list
  LPVOID pAclInformation,                      // ACL information
  DWORD nAclInformationLength,                 // size of ACL information
  ACL_INFORMATION_CLASS dwAclInformationClass  // info class
);

Parameters

pAcl

[in] Pointer to an ACL structure. The function retrieves information about this ACL.

pAclInformation

[out] Pointer to a buffer receiving the requested information. The structure put into the buffer depends on the information class requested in the dwAclInformationClass parameter.

nAclInformationLength

[in] Specifies the size, in bytes, of the buffer pointed to by the pAclInformation parameter.

dwAclInformationClass

[in] Specifies an ACL_INFORMATION_CLASS enumerated value that gives the class of information requested. This parameter can be one of two values from this enumerated type. If the value is AclRevisionInformation, the function fills the buffer pointed to by the pAclInformation parameter with an ACL_REVISION_INFORMATION structure.

If the value is AclSizeInformation, the function fills the buffer pointed to by the pAclInformation parameter with an ACL_SIZE_INFORMATION structure.

Return Values

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Requirements

  Windows NT/2000: Requires Windows NT 3.1 or later.
  Header: Declared in Winbase.h; include Windows.h.
  Library: Use Advapi32.lib.

See Also

Low-Level Access-Control Overview, Low-Level Access Control Functions, ACL, ACL_REVISION_INFORMATION, ACL_SIZE_INFORMATION, GetAce, InitializeAcl, IsValidAcl, SetAclInformation