WTSWaitSystemEvent

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

BOOL WTSWaitSystemEvent(
    HANDLE hServer,   // optional
    DWORD EventMask,
    DWORD* pEventFlags
);

<DllImport("WTSAPI32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WTSWaitSystemEvent(
    hServer As IntPtr,   ' HANDLE optional
    EventMask As UInteger,   ' DWORD
    ByRef pEventFlags As UInteger   ' DWORD* in/out
) As Boolean
End Function

' hServer : HANDLE optional
' EventMask : DWORD
' pEventFlags : DWORD* in/out
Declare PtrSafe Function WTSWaitSystemEvent Lib "wtsapi32" ( _
    ByVal hServer As LongPtr, _
    ByVal EventMask As Long, _
    ByRef pEventFlags 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

WTSWaitSystemEvent = ctypes.windll.wtsapi32.WTSWaitSystemEvent
WTSWaitSystemEvent.restype = wintypes.BOOL
WTSWaitSystemEvent.argtypes = [
    wintypes.HANDLE,  # hServer : HANDLE optional
    wintypes.DWORD,  # EventMask : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pEventFlags : DWORD* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WTSAPI32.dll')
WTSWaitSystemEvent = Fiddle::Function.new(
  lib['WTSWaitSystemEvent'],
  [
    Fiddle::TYPE_VOIDP,  # hServer : HANDLE optional
    -Fiddle::TYPE_INT,  # EventMask : DWORD
    Fiddle::TYPE_VOIDP,  # pEventFlags : DWORD* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "wtsapi32")]
extern "system" {
    fn WTSWaitSystemEvent(
        hServer: *mut core::ffi::c_void,  // HANDLE optional
        EventMask: u32,  // DWORD
        pEventFlags: *mut u32  // DWORD* in/out
    ) -> 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 WTSWaitSystemEvent(IntPtr hServer, uint EventMask, ref uint pEventFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WTSAPI32_WTSWaitSystemEvent' -Namespace Win32 -PassThru
# $api::WTSWaitSystemEvent(hServer, EventMask, pEventFlags)

#uselib "WTSAPI32.dll"
#func global WTSWaitSystemEvent "WTSWaitSystemEvent" sptr, sptr, sptr
; WTSWaitSystemEvent hServer, EventMask, varptr(pEventFlags)   ; 戻り値は stat
; hServer : HANDLE optional -> "sptr"
; EventMask : DWORD -> "sptr"
; pEventFlags : 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。

#uselib "WTSAPI32.dll"
#cfunc global WTSWaitSystemEvent "WTSWaitSystemEvent" sptr, int, var
; res = WTSWaitSystemEvent(hServer, EventMask, pEventFlags)
; hServer : HANDLE optional -> "sptr"
; EventMask : DWORD -> "int"
; pEventFlags : 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。

; BOOL WTSWaitSystemEvent(HANDLE hServer, DWORD EventMask, DWORD* pEventFlags)
#uselib "WTSAPI32.dll"
#cfunc global WTSWaitSystemEvent "WTSWaitSystemEvent" intptr, int, var
; res = WTSWaitSystemEvent(hServer, EventMask, pEventFlags)
; hServer : HANDLE optional -> "intptr"
; EventMask : DWORD -> "int"
; pEventFlags : 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。

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

var (
	wtsapi32 = windows.NewLazySystemDLL("WTSAPI32.dll")
	procWTSWaitSystemEvent = wtsapi32.NewProc("WTSWaitSystemEvent")
)

// hServer (HANDLE optional), EventMask (DWORD), pEventFlags (DWORD* in/out)
r1, _, err := procWTSWaitSystemEvent.Call(
	uintptr(hServer),
	uintptr(EventMask),
	uintptr(pEventFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function WTSWaitSystemEvent(
  hServer: THandle;   // HANDLE optional
  EventMask: DWORD;   // DWORD
  pEventFlags: Pointer   // DWORD* in/out
): BOOL; stdcall;
  external 'WTSAPI32.dll' name 'WTSWaitSystemEvent';

result := DllCall("WTSAPI32\WTSWaitSystemEvent"
    , "Ptr", hServer   ; HANDLE optional
    , "UInt", EventMask   ; DWORD
    , "Ptr", pEventFlags   ; DWORD* in/out
    , "Int")   ; return: BOOL

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