Inside Macintosh: Devices /

Chapter 6 - Power Manager / Power Manager Reference

Data Structures

Battery Information Structure

The GetScaledBatteryInfo function returns information about the battery in a data structure of type BatteryInfo.

typedef struct BatteryInfo {
   unsigned char     flags;            /* misc flags (see below) */
   unsigned char     warningLevel;     /* scaled warning level (0-255) */
   char              reserved;         /* reserved for internal use */
   unsigned char     batteryLevel;     /* scaled battery level (0-255) */
} BatteryInfo;

Bit name	Bit number	Description
batteryInstalled	7	A battery is installed.
batteryCharging	6	The battery is charging.
chargerConnected	X	The charger is connected.

The values of the bits in the flags field are as follows: