[This is preliminary documentation and subject to change.]
The SYSTEM_POWER_STATUS structure contains information about the power status of the system.
typedef struct _SYSTEM_POWER_STATUS {
BYTE ACLineStatus;
BYTE BatteryFlag;
BYTE BatteryLifePercent;
BYTE Reserved1;
DWORD BatteryLifeTime;
DWORD BatteryFullLifeTime;
} SYSTEM_POWER_STATUS;
typedef struct SYSTEM_POWER_STATUS *LPSYSTEM_POWER_STATUS;
Value | Meaning |
---|---|
0 | Offline |
1 | Online |
255 | Unknown status. |
All other values are reserved.
Value | Meaning |
---|---|
1 | High |
2 | Low |
4 | Critical |
8 | Charging |
128 | No system battery |
255 | Unknown status |
All other values are reserved.
The system is only capable of estimating BatteryFullTime based on calculations on BatteryLifeTime and BatteryLifePercent. Without smart battery subsystems, this value may not be accurate enough to be useful.
Windows NT: Requires version 5.0 or later.
Windows: Requires Windows 95 or later.
Windows CE: Unsupported.
Header: Declared in winbase.h.
Power Management Overview, Power Management Structures