DevicePowerSetDeviceState

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

DWORD DevicePowerSetDeviceState(
    LPCWSTR DeviceDescription,
    DWORD SetFlags,
    void* SetData   // optional
);

<DllImport("POWRPROF.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function DevicePowerSetDeviceState(
    <MarshalAs(UnmanagedType.LPWStr)> DeviceDescription As String,   ' LPCWSTR
    SetFlags As UInteger,   ' DWORD
    SetData As IntPtr   ' void* optional
) As UInteger
End Function

' DeviceDescription : LPCWSTR
' SetFlags : DWORD
' SetData : void* optional
Declare PtrSafe Function DevicePowerSetDeviceState Lib "powrprof" ( _
    ByVal DeviceDescription As LongPtr, _
    ByVal SetFlags As Long, _
    ByVal SetData As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

DevicePowerSetDeviceState = ctypes.windll.powrprof.DevicePowerSetDeviceState
DevicePowerSetDeviceState.restype = wintypes.DWORD
DevicePowerSetDeviceState.argtypes = [
    wintypes.LPCWSTR,  # DeviceDescription : LPCWSTR
    wintypes.DWORD,  # SetFlags : DWORD
    ctypes.POINTER(None),  # SetData : void* optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('POWRPROF.dll')
DevicePowerSetDeviceState = Fiddle::Function.new(
  lib['DevicePowerSetDeviceState'],
  [
    Fiddle::TYPE_VOIDP,  # DeviceDescription : LPCWSTR
    -Fiddle::TYPE_INT,  # SetFlags : DWORD
    Fiddle::TYPE_VOIDP,  # SetData : void* optional
  ],
  -Fiddle::TYPE_INT)

#[link(name = "powrprof")]
extern "system" {
    fn DevicePowerSetDeviceState(
        DeviceDescription: *const u16,  // LPCWSTR
        SetFlags: u32,  // DWORD
        SetData: *mut ()  // void* optional
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("POWRPROF.dll", SetLastError = true)]
public static extern uint DevicePowerSetDeviceState([MarshalAs(UnmanagedType.LPWStr)] string DeviceDescription, uint SetFlags, IntPtr SetData);
"@
$api = Add-Type -MemberDefinition $sig -Name 'POWRPROF_DevicePowerSetDeviceState' -Namespace Win32 -PassThru
# $api::DevicePowerSetDeviceState(DeviceDescription, SetFlags, SetData)

#uselib "POWRPROF.dll"
#func global DevicePowerSetDeviceState "DevicePowerSetDeviceState" sptr, sptr, sptr
; DevicePowerSetDeviceState DeviceDescription, SetFlags, SetData   ; 戻り値は stat
; DeviceDescription : LPCWSTR -> "sptr"
; SetFlags : DWORD -> "sptr"
; SetData : void* optional -> "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 DevicePowerSetDeviceState "DevicePowerSetDeviceState" wstr, int, sptr
; res = DevicePowerSetDeviceState(DeviceDescription, SetFlags, SetData)
; DeviceDescription : LPCWSTR -> "wstr"
; SetFlags : DWORD -> "int"
; SetData : void* optional -> "sptr"

; DWORD DevicePowerSetDeviceState(LPCWSTR DeviceDescription, DWORD SetFlags, void* SetData)
#uselib "POWRPROF.dll"
#cfunc global DevicePowerSetDeviceState "DevicePowerSetDeviceState" wstr, int, intptr
; res = DevicePowerSetDeviceState(DeviceDescription, SetFlags, SetData)
; DeviceDescription : LPCWSTR -> "wstr"
; SetFlags : DWORD -> "int"
; SetData : void* optional -> "intptr"

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

var (
	powrprof = windows.NewLazySystemDLL("POWRPROF.dll")
	procDevicePowerSetDeviceState = powrprof.NewProc("DevicePowerSetDeviceState")
)

// DeviceDescription (LPCWSTR), SetFlags (DWORD), SetData (void* optional)
r1, _, err := procDevicePowerSetDeviceState.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(DeviceDescription))),
	uintptr(SetFlags),
	uintptr(SetData),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function DevicePowerSetDeviceState(
  DeviceDescription: PWideChar;   // LPCWSTR
  SetFlags: DWORD;   // DWORD
  SetData: Pointer   // void* optional
): DWORD; stdcall;
  external 'POWRPROF.dll' name 'DevicePowerSetDeviceState';

result := DllCall("POWRPROF\DevicePowerSetDeviceState"
    , "WStr", DeviceDescription   ; LPCWSTR
    , "UInt", SetFlags   ; DWORD
    , "Ptr", SetData   ; void* optional
    , "UInt")   ; return: DWORD

●DevicePowerSetDeviceState(DeviceDescription, SetFlags, SetData) = DLL("POWRPROF.dll", "dword DevicePowerSetDeviceState(char*, dword, void*)")
# 呼び出し: DevicePowerSetDeviceState(DeviceDescription, SetFlags, SetData)
# DeviceDescription : LPCWSTR -> "char*"
# SetFlags : DWORD -> "dword"
# SetData : void* optional -> "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)。