GetSidSubAuthorityCount function (securitybaseapi.h)
The GetSidSubAuthorityCount function returns a pointer to the member in a security identifier (SID) structure that contains the subauthority count.
Syntax
PUCHAR GetSidSubAuthorityCount(
[in] PSID pSid
);
Parameters
[in] pSid
A pointer to the SID structure from which a pointer to the subauthority count is returned.
This function does not handle SID structures that are not valid. Call the IsValidSid function to verify that the SID structure is valid before you call this function.
Return value
If the function succeeds, the return value is a pointer to the subauthority count for the specified SID structure.
If the function fails, the return value is undefined. The function fails if the specified SID structure is not valid. To get extended error information, call GetLastError.
Remarks
The SID structure specified in pSid uses a 32-bit value. For applications that require longer RID values, use CreateWellKnownSid and related functions.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP [desktop apps | UWP apps] |
| Minimum supported server | Windows Server 2003 [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | securitybaseapi.h (include Windows.h) |
| Library | Advapi32.lib |
| DLL | Advapi32.dll |