FindFirstFreeAce info Overview Group

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

);

Parameters

pAcl: Points to an ACL structure.
pAce: Points to a pointer to the first free position in the ACL created when the function returns. If the ACL is invalid, this parameter is NULL. If the ACL is full, this parameter points to the byte immediately following the ACL.

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.

PACL pAcl,	// pointer to access-control list
LPVOID *pAce	// pointer to pointer to first free byte
);