Int 2F/AX=5401h

POWER.EXE - GET/SET POWER STATUS

AX = 5401h
BH = function
00h get status
Return:
BL = current power management status (see #02837)
01h set status
BL = new power managment status (see #02837)

Return:
AX = function status (see #02838)

Note: Called by MS Windows 3.1 POWER.DRV

See Also: AH=53h - AX=5400h - AX=5402h - AX=5403h


Bitfields for power management status:

Bit(s)  Description     (Table 02837)
0      POWER.EXE power management enabled
1      APM firmware power management enabled
2-7    reserved (0)

Notes: Bit 1 is ignored if there is no APM firmware.

Bits 1-0:
00 = POWER OFF, 10 = POWER STD, 11 = POWER ADV


(Table 02838)
Values for POWER.EXE function status:
0000h  successful
0002h  "ERROR_PM_ALREADY_CONNECTED"
0003h  "ERROR_PM_NOT_CONNECTED"
0087h  "ERROR_PM_INVALID_PARAMETER"

Category: Power Management - Int 2Fh - P

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