The GetAce function obtains a pointer to an ACE in an ACL.
An ACE is an access control entry. An ACL is an access control list.
BOOL GetAce(
  PACL pAcl,         // pointer to access-control list
  DWORD dwAceIndex,  // index of ACE to retrieve
  LPVOID *pAce       // pointer to pointer to ACE
);
 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.
  Windows NT: Requires version 3.1 or later.
  Windows: Unsupported.
  Windows CE: Unsupported.
  Header: Declared in winbase.h.
  Import Library: Use advapi32.lib.
Low-Level Access-Control Overview, Low-Level Access Control Functions, ACL, AddAccessAllowedAce, AddAccessDeniedAce, AddAce, AddAuditAccessAce, GetAclInformation, InitializeAcl