Leaked source code of windows server 2003
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/*++
;; Copyright (c) Microsoft Corporation. All rights reserved.;; Module Name:;; ntapm.h;; Abstract:;; This module contains definitions specific to legacy APM support; in NT5, including special HAL interfaces;; Author:;; Bryan Willman (bryanwi) 13 Feb 1998;; Revision History:;;--*/
//
// Arguments to HalInitPowerManagment
//
#define HAL_APM_SIGNATURE 0x004D5041 // APM
#define HAL_APM_VERSION 500 // 5.00
#define HAL_APM_TABLE_SIZE (sizeof(PM_DISPATCH_TABLE)+sizeof(PVOID))
#define HAL_APM_SLEEP_VECTOR 0
#define HAL_APM_OFF_VECTOR 1
//
// Values used in the Parameters.Other part of an IO_STACK_LOCATION
// to set up a link between a battery and ntapm.sys
//
typedef struct _NTAPM_LINK { ULONG Signature; // overlay Argument1
ULONG Version; // overlay Argument2
ULONG BattLevelPtr; // overlay Argument3, pointer to pointer to a pvoid void function
ULONG ChangeNotify; // overlay Argument4, address of notify function
} NTAPM_LINK, *PNTAPM_LINK;
#define NTAPM_LINK_SIGNATURE 0x736d7061 // apms = Argument1
#define NTAPM_LINK_VERSION 500 // 5.00 = Argument2
//
// Major code is IRP_MJ_INTERNAL_DEVICE_CONTROL
// Minor code is 0.
//
//
// BattLevelPtr gets the address of a routine with prototype:
//
//ULONG BatteryLevel();
//
//
// Data returned by NtApmGetBatteryLevel in NTAPM
// is a ULONG, cracked with these defines.
//
#define NTAPM_ACON 0x1000
#define NTAPM_NO_BATT 0x2000
#define NTAPM_NO_SYS_BATT 0x4000
#define NTAPM_BATTERY_STATE 0x0f00
#define NTAPM_BATTERY_STATE_SHIFT 8
#define NTAPM_POWER_PERCENT 0x00ff
//
// ChangeNotify provides the address of a routine with prototype
//
//VOID ChangeNotify();
//
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