The FindFirstFreeAce function retrieves a pointer to the first free byte in an access-control list (ACL).
BOOL FindFirstFreeAce(
PACL pAcl, |
// pointer to access-control list |
LPVOID *pAce |
// pointer to pointer to first free byte |
); |
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.