PowerEnumerate

関数

電源スキームやサブグループ、設定の要素を列挙する。

DLLPOWRPROF.dll呼出規約winapi対応OSWindows Vista 以降

シグネチャ

// POWRPROF.dll
#include <windows.h>

WIN32_ERROR PowerEnumerate(
    HKEY RootPowerKey,   // optional
    const GUID* SchemeGuid,   // optional
    const GUID* SubGroupOfPowerSettingsGuid,   // optional
    POWER_DATA_ACCESSOR AccessFlags,
    DWORD Index,
    BYTE* Buffer,   // optional
    DWORD* BufferSize
);

パラメーター

名前	型	方向
RootPowerKey	HKEY	inoptional
SchemeGuid	GUID*	inoptional
SubGroupOfPowerSettingsGuid	GUID*	inoptional
AccessFlags	POWER_DATA_ACCESSOR	in
Index	DWORD	in
Buffer	BYTE*	outoptional
BufferSize	DWORD*	inout

戻り値の型: WIN32_ERROR

各言語での呼び出し定義

// POWRPROF.dll
#include <windows.h>

WIN32_ERROR PowerEnumerate(
    HKEY RootPowerKey,   // optional
    const GUID* SchemeGuid,   // optional
    const GUID* SubGroupOfPowerSettingsGuid,   // optional
    POWER_DATA_ACCESSOR AccessFlags,
    DWORD Index,
    BYTE* Buffer,   // optional
    DWORD* BufferSize
);

[DllImport("POWRPROF.dll", ExactSpelling = true)]
static extern uint PowerEnumerate(
    IntPtr RootPowerKey,   // HKEY optional
    IntPtr SchemeGuid,   // GUID* optional
    IntPtr SubGroupOfPowerSettingsGuid,   // GUID* optional
    int AccessFlags,   // POWER_DATA_ACCESSOR
    uint Index,   // DWORD
    IntPtr Buffer,   // BYTE* optional, out
    ref uint BufferSize   // DWORD* in/out
);

<DllImport("POWRPROF.dll", ExactSpelling:=True)>
Public Shared Function PowerEnumerate(
    RootPowerKey As IntPtr,   ' HKEY optional
    SchemeGuid As IntPtr,   ' GUID* optional
    SubGroupOfPowerSettingsGuid As IntPtr,   ' GUID* optional
    AccessFlags As Integer,   ' POWER_DATA_ACCESSOR
    Index As UInteger,   ' DWORD
    Buffer As IntPtr,   ' BYTE* optional, out
    ByRef BufferSize As UInteger   ' DWORD* in/out
) As UInteger
End Function

' RootPowerKey : HKEY optional
' SchemeGuid : GUID* optional
' SubGroupOfPowerSettingsGuid : GUID* optional
' AccessFlags : POWER_DATA_ACCESSOR
' Index : DWORD
' Buffer : BYTE* optional, out
' BufferSize : DWORD* in/out
Declare PtrSafe Function PowerEnumerate Lib "powrprof" ( _
    ByVal RootPowerKey As LongPtr, _
    ByVal SchemeGuid As LongPtr, _
    ByVal SubGroupOfPowerSettingsGuid As LongPtr, _
    ByVal AccessFlags As Long, _
    ByVal Index As Long, _
    ByVal Buffer As LongPtr, _
    ByRef BufferSize As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

PowerEnumerate = ctypes.windll.powrprof.PowerEnumerate
PowerEnumerate.restype = wintypes.DWORD
PowerEnumerate.argtypes = [
    wintypes.HANDLE,  # RootPowerKey : HKEY optional
    ctypes.c_void_p,  # SchemeGuid : GUID* optional
    ctypes.c_void_p,  # SubGroupOfPowerSettingsGuid : GUID* optional
    ctypes.c_int,  # AccessFlags : POWER_DATA_ACCESSOR
    wintypes.DWORD,  # Index : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # Buffer : BYTE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # BufferSize : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('POWRPROF.dll')
PowerEnumerate = Fiddle::Function.new(
  lib['PowerEnumerate'],
  [
    Fiddle::TYPE_VOIDP,  # RootPowerKey : HKEY optional
    Fiddle::TYPE_VOIDP,  # SchemeGuid : GUID* optional
    Fiddle::TYPE_VOIDP,  # SubGroupOfPowerSettingsGuid : GUID* optional
    Fiddle::TYPE_INT,  # AccessFlags : POWER_DATA_ACCESSOR
    -Fiddle::TYPE_INT,  # Index : DWORD
    Fiddle::TYPE_VOIDP,  # Buffer : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # BufferSize : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "powrprof")]
extern "system" {
    fn PowerEnumerate(
        RootPowerKey: *mut core::ffi::c_void,  // HKEY optional
        SchemeGuid: *const GUID,  // GUID* optional
        SubGroupOfPowerSettingsGuid: *const GUID,  // GUID* optional
        AccessFlags: i32,  // POWER_DATA_ACCESSOR
        Index: u32,  // DWORD
        Buffer: *mut u8,  // BYTE* optional, out
        BufferSize: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("POWRPROF.dll")]
public static extern uint PowerEnumerate(IntPtr RootPowerKey, IntPtr SchemeGuid, IntPtr SubGroupOfPowerSettingsGuid, int AccessFlags, uint Index, IntPtr Buffer, ref uint BufferSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'POWRPROF_PowerEnumerate' -Namespace Win32 -PassThru
# $api::PowerEnumerate(RootPowerKey, SchemeGuid, SubGroupOfPowerSettingsGuid, AccessFlags, Index, Buffer, BufferSize)

#uselib "POWRPROF.dll"
#func global PowerEnumerate "PowerEnumerate" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; PowerEnumerate RootPowerKey, varptr(SchemeGuid), varptr(SubGroupOfPowerSettingsGuid), AccessFlags, Index, varptr(Buffer), varptr(BufferSize)   ; 戻り値は stat
; RootPowerKey : HKEY optional -> "sptr"
; SchemeGuid : GUID* optional -> "sptr"
; SubGroupOfPowerSettingsGuid : GUID* optional -> "sptr"
; AccessFlags : POWER_DATA_ACCESSOR -> "sptr"
; Index : DWORD -> "sptr"
; Buffer : BYTE* optional, out -> "sptr"
; BufferSize : DWORD* in/out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

出力引数:

#uselib "POWRPROF.dll"
#cfunc global PowerEnumerate "PowerEnumerate" sptr, var, var, int, int, var, var
; res = PowerEnumerate(RootPowerKey, SchemeGuid, SubGroupOfPowerSettingsGuid, AccessFlags, Index, Buffer, BufferSize)
; RootPowerKey : HKEY optional -> "sptr"
; SchemeGuid : GUID* optional -> "var"
; SubGroupOfPowerSettingsGuid : GUID* optional -> "var"
; AccessFlags : POWER_DATA_ACCESSOR -> "int"
; Index : DWORD -> "int"
; Buffer : BYTE* optional, out -> "var"
; BufferSize : DWORD* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "POWRPROF.dll"
#cfunc global PowerEnumerate "PowerEnumerate" sptr, sptr, sptr, int, int, sptr, sptr
; res = PowerEnumerate(RootPowerKey, varptr(SchemeGuid), varptr(SubGroupOfPowerSettingsGuid), AccessFlags, Index, varptr(Buffer), varptr(BufferSize))
; RootPowerKey : HKEY optional -> "sptr"
; SchemeGuid : GUID* optional -> "sptr"
; SubGroupOfPowerSettingsGuid : GUID* optional -> "sptr"
; AccessFlags : POWER_DATA_ACCESSOR -> "int"
; Index : DWORD -> "int"
; Buffer : BYTE* optional, out -> "sptr"
; BufferSize : DWORD* in/out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; WIN32_ERROR PowerEnumerate(HKEY RootPowerKey, GUID* SchemeGuid, GUID* SubGroupOfPowerSettingsGuid, POWER_DATA_ACCESSOR AccessFlags, DWORD Index, BYTE* Buffer, DWORD* BufferSize)
#uselib "POWRPROF.dll"
#cfunc global PowerEnumerate "PowerEnumerate" intptr, var, var, int, int, var, var
; res = PowerEnumerate(RootPowerKey, SchemeGuid, SubGroupOfPowerSettingsGuid, AccessFlags, Index, Buffer, BufferSize)
; RootPowerKey : HKEY optional -> "intptr"
; SchemeGuid : GUID* optional -> "var"
; SubGroupOfPowerSettingsGuid : GUID* optional -> "var"
; AccessFlags : POWER_DATA_ACCESSOR -> "int"
; Index : DWORD -> "int"
; Buffer : BYTE* optional, out -> "var"
; BufferSize : DWORD* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; WIN32_ERROR PowerEnumerate(HKEY RootPowerKey, GUID* SchemeGuid, GUID* SubGroupOfPowerSettingsGuid, POWER_DATA_ACCESSOR AccessFlags, DWORD Index, BYTE* Buffer, DWORD* BufferSize)
#uselib "POWRPROF.dll"
#cfunc global PowerEnumerate "PowerEnumerate" intptr, intptr, intptr, int, int, intptr, intptr
; res = PowerEnumerate(RootPowerKey, varptr(SchemeGuid), varptr(SubGroupOfPowerSettingsGuid), AccessFlags, Index, varptr(Buffer), varptr(BufferSize))
; RootPowerKey : HKEY optional -> "intptr"
; SchemeGuid : GUID* optional -> "intptr"
; SubGroupOfPowerSettingsGuid : GUID* optional -> "intptr"
; AccessFlags : POWER_DATA_ACCESSOR -> "int"
; Index : DWORD -> "int"
; Buffer : BYTE* optional, out -> "intptr"
; BufferSize : DWORD* in/out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	powrprof = windows.NewLazySystemDLL("POWRPROF.dll")
	procPowerEnumerate = powrprof.NewProc("PowerEnumerate")
)

// RootPowerKey (HKEY optional), SchemeGuid (GUID* optional), SubGroupOfPowerSettingsGuid (GUID* optional), AccessFlags (POWER_DATA_ACCESSOR), Index (DWORD), Buffer (BYTE* optional, out), BufferSize (DWORD* in/out)
r1, _, err := procPowerEnumerate.Call(
	uintptr(RootPowerKey),
	uintptr(SchemeGuid),
	uintptr(SubGroupOfPowerSettingsGuid),
	uintptr(AccessFlags),
	uintptr(Index),
	uintptr(Buffer),
	uintptr(BufferSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function PowerEnumerate(
  RootPowerKey: THandle;   // HKEY optional
  SchemeGuid: PGUID;   // GUID* optional
  SubGroupOfPowerSettingsGuid: PGUID;   // GUID* optional
  AccessFlags: Integer;   // POWER_DATA_ACCESSOR
  Index: DWORD;   // DWORD
  Buffer: Pointer;   // BYTE* optional, out
  BufferSize: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'POWRPROF.dll' name 'PowerEnumerate';

result := DllCall("POWRPROF\PowerEnumerate"
    , "Ptr", RootPowerKey   ; HKEY optional
    , "Ptr", SchemeGuid   ; GUID* optional
    , "Ptr", SubGroupOfPowerSettingsGuid   ; GUID* optional
    , "Int", AccessFlags   ; POWER_DATA_ACCESSOR
    , "UInt", Index   ; DWORD
    , "Ptr", Buffer   ; BYTE* optional, out
    , "Ptr", BufferSize   ; DWORD* in/out
    , "UInt")   ; return: WIN32_ERROR

●PowerEnumerate(RootPowerKey, SchemeGuid, SubGroupOfPowerSettingsGuid, AccessFlags, Index, Buffer, BufferSize) = DLL("POWRPROF.dll", "dword PowerEnumerate(void*, void*, void*, int, dword, void*, void*)")
# 呼び出し: PowerEnumerate(RootPowerKey, SchemeGuid, SubGroupOfPowerSettingsGuid, AccessFlags, Index, Buffer, BufferSize)
# RootPowerKey : HKEY optional -> "void*"
# SchemeGuid : GUID* optional -> "void*"
# SubGroupOfPowerSettingsGuid : GUID* optional -> "void*"
# AccessFlags : POWER_DATA_ACCESSOR -> "int"
# Index : DWORD -> "dword"
# Buffer : BYTE* optional, out -> "void*"
# BufferSize : DWORD* in/out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。