PowerWriteValueMax

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

WIN32_ERROR PowerWriteValueMax(
    HKEY RootPowerKey,   // optional
    const GUID* SubGroupOfPowerSettingsGuid,   // optional
    const GUID* PowerSettingGuid,   // optional
    DWORD ValueMaximum
);

<DllImport("POWRPROF.dll", ExactSpelling:=True)>
Public Shared Function PowerWriteValueMax(
    RootPowerKey As IntPtr,   ' HKEY optional
    SubGroupOfPowerSettingsGuid As IntPtr,   ' GUID* optional
    PowerSettingGuid As IntPtr,   ' GUID* optional
    ValueMaximum As UInteger   ' DWORD
) As UInteger
End Function

' RootPowerKey : HKEY optional
' SubGroupOfPowerSettingsGuid : GUID* optional
' PowerSettingGuid : GUID* optional
' ValueMaximum : DWORD
Declare PtrSafe Function PowerWriteValueMax Lib "powrprof" ( _
    ByVal RootPowerKey As LongPtr, _
    ByVal SubGroupOfPowerSettingsGuid As LongPtr, _
    ByVal PowerSettingGuid As LongPtr, _
    ByVal ValueMaximum 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

PowerWriteValueMax = ctypes.windll.powrprof.PowerWriteValueMax
PowerWriteValueMax.restype = wintypes.DWORD
PowerWriteValueMax.argtypes = [
    wintypes.HANDLE,  # RootPowerKey : HKEY optional
    ctypes.c_void_p,  # SubGroupOfPowerSettingsGuid : GUID* optional
    ctypes.c_void_p,  # PowerSettingGuid : GUID* optional
    wintypes.DWORD,  # ValueMaximum : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('POWRPROF.dll')
PowerWriteValueMax = Fiddle::Function.new(
  lib['PowerWriteValueMax'],
  [
    Fiddle::TYPE_VOIDP,  # RootPowerKey : HKEY optional
    Fiddle::TYPE_VOIDP,  # SubGroupOfPowerSettingsGuid : GUID* optional
    Fiddle::TYPE_VOIDP,  # PowerSettingGuid : GUID* optional
    -Fiddle::TYPE_INT,  # ValueMaximum : DWORD
  ],
  -Fiddle::TYPE_INT)

#[link(name = "powrprof")]
extern "system" {
    fn PowerWriteValueMax(
        RootPowerKey: *mut core::ffi::c_void,  // HKEY optional
        SubGroupOfPowerSettingsGuid: *const GUID,  // GUID* optional
        PowerSettingGuid: *const GUID,  // GUID* optional
        ValueMaximum: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("POWRPROF.dll")]
public static extern uint PowerWriteValueMax(IntPtr RootPowerKey, IntPtr SubGroupOfPowerSettingsGuid, IntPtr PowerSettingGuid, uint ValueMaximum);
"@
$api = Add-Type -MemberDefinition $sig -Name 'POWRPROF_PowerWriteValueMax' -Namespace Win32 -PassThru
# $api::PowerWriteValueMax(RootPowerKey, SubGroupOfPowerSettingsGuid, PowerSettingGuid, ValueMaximum)

#uselib "POWRPROF.dll"
#func global PowerWriteValueMax "PowerWriteValueMax" sptr, sptr, sptr, sptr
; PowerWriteValueMax RootPowerKey, varptr(SubGroupOfPowerSettingsGuid), varptr(PowerSettingGuid), ValueMaximum   ; 戻り値は stat
; RootPowerKey : HKEY optional -> "sptr"
; SubGroupOfPowerSettingsGuid : GUID* optional -> "sptr"
; PowerSettingGuid : GUID* optional -> "sptr"
; ValueMaximum : DWORD -> "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。

#uselib "POWRPROF.dll"
#cfunc global PowerWriteValueMax "PowerWriteValueMax" sptr, var, var, int
; res = PowerWriteValueMax(RootPowerKey, SubGroupOfPowerSettingsGuid, PowerSettingGuid, ValueMaximum)
; RootPowerKey : HKEY optional -> "sptr"
; SubGroupOfPowerSettingsGuid : GUID* optional -> "var"
; PowerSettingGuid : GUID* optional -> "var"
; ValueMaximum : DWORD -> "int"
; ※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 PowerWriteValueMax(HKEY RootPowerKey, GUID* SubGroupOfPowerSettingsGuid, GUID* PowerSettingGuid, DWORD ValueMaximum)
#uselib "POWRPROF.dll"
#cfunc global PowerWriteValueMax "PowerWriteValueMax" intptr, var, var, int
; res = PowerWriteValueMax(RootPowerKey, SubGroupOfPowerSettingsGuid, PowerSettingGuid, ValueMaximum)
; RootPowerKey : HKEY optional -> "intptr"
; SubGroupOfPowerSettingsGuid : GUID* optional -> "var"
; PowerSettingGuid : GUID* optional -> "var"
; ValueMaximum : DWORD -> "int"
; ※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。

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

var (
	powrprof = windows.NewLazySystemDLL("POWRPROF.dll")
	procPowerWriteValueMax = powrprof.NewProc("PowerWriteValueMax")
)

// RootPowerKey (HKEY optional), SubGroupOfPowerSettingsGuid (GUID* optional), PowerSettingGuid (GUID* optional), ValueMaximum (DWORD)
r1, _, err := procPowerWriteValueMax.Call(
	uintptr(RootPowerKey),
	uintptr(SubGroupOfPowerSettingsGuid),
	uintptr(PowerSettingGuid),
	uintptr(ValueMaximum),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function PowerWriteValueMax(
  RootPowerKey: THandle;   // HKEY optional
  SubGroupOfPowerSettingsGuid: PGUID;   // GUID* optional
  PowerSettingGuid: PGUID;   // GUID* optional
  ValueMaximum: DWORD   // DWORD
): DWORD; stdcall;
  external 'POWRPROF.dll' name 'PowerWriteValueMax';

result := DllCall("POWRPROF\PowerWriteValueMax"
    , "Ptr", RootPowerKey   ; HKEY optional
    , "Ptr", SubGroupOfPowerSettingsGuid   ; GUID* optional
    , "Ptr", PowerSettingGuid   ; GUID* optional
    , "UInt", ValueMaximum   ; DWORD
    , "UInt")   ; return: WIN32_ERROR

●PowerWriteValueMax(RootPowerKey, SubGroupOfPowerSettingsGuid, PowerSettingGuid, ValueMaximum) = DLL("POWRPROF.dll", "dword PowerWriteValueMax(void*, void*, void*, dword)")
# 呼び出し: PowerWriteValueMax(RootPowerKey, SubGroupOfPowerSettingsGuid, PowerSettingGuid, ValueMaximum)
# RootPowerKey : HKEY optional -> "void*"
# SubGroupOfPowerSettingsGuid : GUID* optional -> "void*"
# PowerSettingGuid : GUID* optional -> "void*"
# ValueMaximum : DWORD -> "dword"
# 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)。