VarUI8FromI8

// OLEAUT32.dll
#include <windows.h>

HRESULT VarUI8FromI8(
    LONGLONG ui64In,
    ULONGLONG* pi64Out
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function VarUI8FromI8(
    ui64In As Long,   ' LONGLONG
    <Out> ByRef pi64Out As ULong   ' ULONGLONG* out
) As Integer
End Function

' ui64In : LONGLONG
' pi64Out : ULONGLONG* out
Declare PtrSafe Function VarUI8FromI8 Lib "oleaut32" ( _
    ByVal ui64In As LongLong, _
    ByRef pi64Out As LongLong) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

VarUI8FromI8 = ctypes.windll.oleaut32.VarUI8FromI8
VarUI8FromI8.restype = ctypes.c_int
VarUI8FromI8.argtypes = [
    ctypes.c_longlong,  # ui64In : LONGLONG
    ctypes.POINTER(ctypes.c_ulonglong),  # pi64Out : ULONGLONG* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
VarUI8FromI8 = Fiddle::Function.new(
  lib['VarUI8FromI8'],
  [
    Fiddle::TYPE_LONG_LONG,  # ui64In : LONGLONG
    Fiddle::TYPE_VOIDP,  # pi64Out : ULONGLONG* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "oleaut32")]
extern "system" {
    fn VarUI8FromI8(
        ui64In: i64,  // LONGLONG
        pi64Out: *mut u64  // ULONGLONG* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern int VarUI8FromI8(long ui64In, out ulong pi64Out);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_VarUI8FromI8' -Namespace Win32 -PassThru
# $api::VarUI8FromI8(ui64In, pi64Out)

#uselib "OLEAUT32.dll"
#func global VarUI8FromI8 "VarUI8FromI8" sptr, sptr
; VarUI8FromI8 ui64In, varptr(pi64Out)   ; 戻り値は stat
; ui64In : LONGLONG -> "sptr"
; pi64Out : ULONGLONG* out -> "sptr"
; ※HSP3.7は int64 引数(64bit値渡し)に非対応です。
; ※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 "OLEAUT32.dll"
#cfunc global VarUI8FromI8 "VarUI8FromI8" int64, var
; res = VarUI8FromI8(ui64In, pi64Out)
; ui64In : LONGLONG -> "int64"
; pi64Out : ULONGLONG* 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。
; ※int64 引数の DLL 値渡しは x64 ランタイム(hsp3_64)のみ対応(x86 は未対応)。

; HRESULT VarUI8FromI8(LONGLONG ui64In, ULONGLONG* pi64Out)
#uselib "OLEAUT32.dll"
#cfunc global VarUI8FromI8 "VarUI8FromI8" int64, var
; res = VarUI8FromI8(ui64In, pi64Out)
; ui64In : LONGLONG -> "int64"
; pi64Out : ULONGLONG* 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 (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procVarUI8FromI8 = oleaut32.NewProc("VarUI8FromI8")
)

// ui64In (LONGLONG), pi64Out (ULONGLONG* out)
r1, _, err := procVarUI8FromI8.Call(
	uintptr(ui64In),
	uintptr(pi64Out),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function VarUI8FromI8(
  ui64In: Int64;   // LONGLONG
  pi64Out: Pointer   // ULONGLONG* out
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'VarUI8FromI8';

result := DllCall("OLEAUT32\VarUI8FromI8"
    , "Int64", ui64In   ; LONGLONG
    , "Ptr", pi64Out   ; ULONGLONG* out
    , "Int")   ; return: HRESULT

●VarUI8FromI8(ui64In, pi64Out) = DLL("OLEAUT32.dll", "int VarUI8FromI8(int64, void*)")
# 呼び出し: VarUI8FromI8(ui64In, pi64Out)
# ui64In : LONGLONG -> "int64"
# pi64Out : ULONGLONG* 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)。