WTSShutdownSystem

// WTSAPI32.dll
#include <windows.h>

BOOL WTSShutdownSystem(
    HANDLE hServer,   // optional
    DWORD ShutdownFlag
);

<DllImport("WTSAPI32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WTSShutdownSystem(
    hServer As IntPtr,   ' HANDLE optional
    ShutdownFlag As UInteger   ' DWORD
) As Boolean
End Function

' hServer : HANDLE optional
' ShutdownFlag : DWORD
Declare PtrSafe Function WTSShutdownSystem Lib "wtsapi32" ( _
    ByVal hServer As LongPtr, _
    ByVal ShutdownFlag 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

WTSShutdownSystem = ctypes.windll.wtsapi32.WTSShutdownSystem
WTSShutdownSystem.restype = wintypes.BOOL
WTSShutdownSystem.argtypes = [
    wintypes.HANDLE,  # hServer : HANDLE optional
    wintypes.DWORD,  # ShutdownFlag : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WTSAPI32.dll')
WTSShutdownSystem = Fiddle::Function.new(
  lib['WTSShutdownSystem'],
  [
    Fiddle::TYPE_VOIDP,  # hServer : HANDLE optional
    -Fiddle::TYPE_INT,  # ShutdownFlag : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "wtsapi32")]
extern "system" {
    fn WTSShutdownSystem(
        hServer: *mut core::ffi::c_void,  // HANDLE optional
        ShutdownFlag: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WTSAPI32.dll", SetLastError = true)]
public static extern bool WTSShutdownSystem(IntPtr hServer, uint ShutdownFlag);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WTSAPI32_WTSShutdownSystem' -Namespace Win32 -PassThru
# $api::WTSShutdownSystem(hServer, ShutdownFlag)

#uselib "WTSAPI32.dll"
#func global WTSShutdownSystem "WTSShutdownSystem" sptr, sptr
; WTSShutdownSystem hServer, ShutdownFlag   ; 戻り値は stat
; hServer : HANDLE optional -> "sptr"
; ShutdownFlag : 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 "WTSAPI32.dll"
#cfunc global WTSShutdownSystem "WTSShutdownSystem" sptr, int
; res = WTSShutdownSystem(hServer, ShutdownFlag)
; hServer : HANDLE optional -> "sptr"
; ShutdownFlag : DWORD -> "int"

; BOOL WTSShutdownSystem(HANDLE hServer, DWORD ShutdownFlag)
#uselib "WTSAPI32.dll"
#cfunc global WTSShutdownSystem "WTSShutdownSystem" intptr, int
; res = WTSShutdownSystem(hServer, ShutdownFlag)
; hServer : HANDLE optional -> "intptr"
; ShutdownFlag : DWORD -> "int"

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

var (
	wtsapi32 = windows.NewLazySystemDLL("WTSAPI32.dll")
	procWTSShutdownSystem = wtsapi32.NewProc("WTSShutdownSystem")
)

// hServer (HANDLE optional), ShutdownFlag (DWORD)
r1, _, err := procWTSShutdownSystem.Call(
	uintptr(hServer),
	uintptr(ShutdownFlag),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function WTSShutdownSystem(
  hServer: THandle;   // HANDLE optional
  ShutdownFlag: DWORD   // DWORD
): BOOL; stdcall;
  external 'WTSAPI32.dll' name 'WTSShutdownSystem';

result := DllCall("WTSAPI32\WTSShutdownSystem"
    , "Ptr", hServer   ; HANDLE optional
    , "UInt", ShutdownFlag   ; DWORD
    , "Int")   ; return: BOOL

●WTSShutdownSystem(hServer, ShutdownFlag) = DLL("WTSAPI32.dll", "bool WTSShutdownSystem(void*, dword)")
# 呼び出し: WTSShutdownSystem(hServer, ShutdownFlag)
# hServer : HANDLE optional -> "void*"
# ShutdownFlag : 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)。