Int 2F/AX=1684h/BX=0026h

MS Windows - VPOWERD - GET API ENTRY POINT

AX = 1684h
BX = 0026h (virtual device ID for VPOWERD device) (see #02642)
ES:DI = 0000h:0000h

Return:
ES:DI -> VxD API entry point (see #02664)
0000h:0000h if the VxD does not support API in current mode

See Also: AX=1684h"DEVICE API" - INT 20"Windows"



(Table 02664)
Call VPOWERD.VXD entry point with:.
AX = function number
0000h get VPOWERD version
Return:
DX = 0000h
AX = version (AH = major, AL = minor)
0001h get APM BIOS version
Return:
DX:AX = APM BIOS version
0002h get current power management level
Return:
DX:AX = power management level
0003h enable/disable power management (see INT 15/AX=5308h)
??? = new state of power management
Return:
DX:AX = 0000h:0000h if successful
else error code (see #02665)
0004h set power state (see INT 15/AX=5307h)
Return:
DX:AX = 0000h:0000h if successful
else error code (see #02665)
0005h set system power status
Return:
DX:AX = 0000h:0000h if successful
else error code (see #02665)
0006h restore APM power-on defaults (see INT 15/AX=5309h)
Return:
DX:AX = 0000h:0000h if successful
else error code (see #02665)
0007h get power status (see INT 15/AX=530Ah)
Return:
???
0008h get APM 1.1 power state (see INT 15/AX=530Ch)
Return:
???
0009h invoke OEM APM function
??? -> buffer containing parameters for INT 15/AX=5380h
Return:
DX:AX = 0000h:0000h or error code (see #02665)
buffer updated if successful
000Ah register power handler
???
Return:
DX:AX = 0000h:0000h or error code
000Bh deregister power handler
???
Return:
DX:AX = 0000h:0000h or error code (see #02665)
000Ch Win32 get system power status
000Dh Win32 set system power status
else
Return:
DX = 0000h
AX = 00FFh

See Also: #02663 - #02666



(Table 02665)
Values for VPOWERD.VXD error code:
000000xxh      APM error code
000000FFh      function number out of range
80000001h      ??? (service 05h)
80000002h      ??? (service 0Dh)
80000003h      specified NULL buffer pointer (service 07h,08h,09h)
80000005h      ??? (service 03h)
80000006h      ??? (service 04h)
80000007h      ??? (service 05h)
80000008h      ??? (service 05h)
80000009h      out of memory (service 0Ah)
8000000Ah      ??? (service 0Ah)
8000000Bh      invalid power handler (service 0Bh)
8000000Ch      unsupported/disabled??? function

See Also: #02664 - #01290

Category: Windows - Int 2Fh - M

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