libobs: Log whether user is running as administrator

libobs/obs-windows.c

@@ -181,6 +181,25 @@ static void log_windows_version(void)
 			ver.major, ver.minor, ver.build, ver.revis);
 }
 
+static void log_admin_status(void)
+{
+	SID_IDENTIFIER_AUTHORITY auth = SECURITY_NT_AUTHORITY;
+	PSID admin_group;
+	BOOL success;
+
+	success = AllocateAndInitializeSid(&auth, 2,
+			SECURITY_BUILTIN_DOMAIN_RID, DOMAIN_ALIAS_RID_ADMINS,
+			0, 0, 0, 0, 0, 0, &admin_group);
+	if (success) {
+		if (!CheckTokenMembership(NULL, admin_group, &success))
+			success = false;
+		FreeSid(admin_group);
+	}
+
+	blog(LOG_INFO, "Running as administrator: %s",
+			success ? "true" : "false");
+}
+
 typedef HRESULT (WINAPI *dwm_is_composition_enabled_t)(BOOL*);
 
 static void log_aero(void)
@@ -219,6 +238,7 @@ void log_system_info(void)
 	log_processor_cores();
 	log_available_memory();
 	log_windows_version();
+	log_admin_status();
 	log_aero();
 }