PATH Carbon Developer Documentation > Utilities > Power Manager

The Power Manager is the part of the Mac OS that controls power to the internal hardware devices of Macintosh PowerBook computers. The Power Manager automatically shuts off power to internal devices to conserve power whenever the computer has not been used for a predetermined amount of time. In addition, the Power Manager allows your software to read the status of and control power to some subsystem, of a battery-powered Macintosh computer.

Power Manager Reference This document provides a complete reference to the Power Manager APIs.