FtAddFt

// MAPI32.dll
#include <windows.h>

FILETIME FtAddFt(
    FILETIME ftAddend1,
    FILETIME ftAddend2
);

<DllImport("MAPI32.dll", ExactSpelling:=True)>
Public Shared Function FtAddFt(
    ftAddend1 As FILETIME,   ' FILETIME
    ftAddend2 As FILETIME   ' FILETIME
) As FILETIME
End Function

' ftAddend1 : FILETIME
' ftAddend2 : FILETIME
Declare PtrSafe Function FtAddFt Lib "mapi32" ( _
    ByVal ftAddend1 As LongPtr, _
    ByVal ftAddend2 As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

FtAddFt = ctypes.windll.mapi32.FtAddFt
FtAddFt.restype = ctypes.c_void_p
FtAddFt.argtypes = [
    FILETIME,  # ftAddend1 : FILETIME
    FILETIME,  # ftAddend2 : FILETIME
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MAPI32.dll')
FtAddFt = Fiddle::Function.new(
  lib['FtAddFt'],
  [
    Fiddle::TYPE_VOIDP,  # ftAddend1 : FILETIME
    Fiddle::TYPE_VOIDP,  # ftAddend2 : FILETIME
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "mapi32")]
extern "system" {
    fn FtAddFt(
        ftAddend1: FILETIME,  // FILETIME
        ftAddend2: FILETIME  // FILETIME
    ) -> FILETIME;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MAPI32.dll")]
public static extern FILETIME FtAddFt(FILETIME ftAddend1, FILETIME ftAddend2);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MAPI32_FtAddFt' -Namespace Win32 -PassThru
# $api::FtAddFt(ftAddend1, ftAddend2)

#uselib "MAPI32.dll"
#func global FtAddFt "FtAddFt" sptr, sptr
; FtAddFt ftAddend1, ftAddend2   ; 戻り値は stat
; ftAddend1 : FILETIME -> "sptr"
; ftAddend2 : FILETIME -> "sptr"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。
; ※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 "MAPI32.dll"
#cfunc global FtAddFt "FtAddFt" int, int
; res = FtAddFt(ftAddend1, ftAddend2)
; ftAddend1 : FILETIME -> "int"
; ftAddend2 : FILETIME -> "int"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。

; FILETIME FtAddFt(FILETIME ftAddend1, FILETIME ftAddend2)
#uselib "MAPI32.dll"
#cfunc global FtAddFt "FtAddFt" int, int
; res = FtAddFt(ftAddend1, ftAddend2)
; ftAddend1 : FILETIME -> "int"
; ftAddend2 : FILETIME -> "int"
; ※値渡し構造体は直接渡せません。intにパック、または var で構造体変数を渡してください。

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

var (
	mapi32 = windows.NewLazySystemDLL("MAPI32.dll")
	procFtAddFt = mapi32.NewProc("FtAddFt")
)

// ftAddend1 (FILETIME), ftAddend2 (FILETIME)
r1, _, err := procFtAddFt.Call(
	uintptr(ftAddend1),
	uintptr(ftAddend2),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // FILETIME

function FtAddFt(
  ftAddend1: FILETIME;   // FILETIME
  ftAddend2: FILETIME   // FILETIME
): FILETIME; stdcall;
  external 'MAPI32.dll' name 'FtAddFt';

result := DllCall("MAPI32\FtAddFt"
    , "Ptr", ftAddend1   ; FILETIME
    , "Ptr", ftAddend2   ; FILETIME
    , "Ptr")   ; return: FILETIME

●FtAddFt(ftAddend1, ftAddend2) = DLL("MAPI32.dll", "void* FtAddFt(void*, void*)")
# 呼び出し: FtAddFt(ftAddend1, ftAddend2)
# ftAddend1 : FILETIME -> "void*"
# ftAddend2 : FILETIME -> "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)。