PATH Carbon Developer Documentation > Operating System Services> Low Memory Accessors

These functions allow your application to obtain information stored in low-memory variables. Note that you should always avoid using low-memory accessors if there are direct calls to obtain the same information. In general, don't think of the low-memory accessor routines as obtaining values from low memory, as was once the case. Think of them as providing operating system information that may be associated with a specific manager. In the future, Apple may supply new functions for retrieving this information.

Carbon Specification for the Low Memory Accessors This document lists the Carbon inclusion status of the Low Memory Accessors APIs.