FtMulDw

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

FILETIME FtMulDw(
    DWORD ftMultiplier,
    FILETIME ftMultiplicand
);

<DllImport("MAPI32.dll", ExactSpelling:=True)>
Public Shared Function FtMulDw(
    ftMultiplier As UInteger,   ' DWORD
    ftMultiplicand As FILETIME   ' FILETIME
) As FILETIME
End Function

' ftMultiplier : DWORD
' ftMultiplicand : FILETIME
Declare PtrSafe Function FtMulDw Lib "mapi32" ( _
    ByVal ftMultiplier As Long, _
    ByVal ftMultiplicand 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

FtMulDw = ctypes.windll.mapi32.FtMulDw
FtMulDw.restype = ctypes.c_void_p
FtMulDw.argtypes = [
    wintypes.DWORD,  # ftMultiplier : DWORD
    FILETIME,  # ftMultiplicand : FILETIME
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MAPI32.dll')
FtMulDw = Fiddle::Function.new(
  lib['FtMulDw'],
  [
    -Fiddle::TYPE_INT,  # ftMultiplier : DWORD
    Fiddle::TYPE_VOIDP,  # ftMultiplicand : FILETIME
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "mapi32")]
extern "system" {
    fn FtMulDw(
        ftMultiplier: u32,  // DWORD
        ftMultiplicand: FILETIME  // FILETIME
    ) -> FILETIME;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MAPI32.dll")]
public static extern FILETIME FtMulDw(uint ftMultiplier, FILETIME ftMultiplicand);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MAPI32_FtMulDw' -Namespace Win32 -PassThru
# $api::FtMulDw(ftMultiplier, ftMultiplicand)

#uselib "MAPI32.dll"
#func global FtMulDw "FtMulDw" sptr, sptr
; FtMulDw ftMultiplier, ftMultiplicand   ; 戻り値は stat
; ftMultiplier : DWORD -> "sptr"
; ftMultiplicand : 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 FtMulDw "FtMulDw" int, int
; res = FtMulDw(ftMultiplier, ftMultiplicand)
; ftMultiplier : DWORD -> "int"
; ftMultiplicand : 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 FtMulDw(DWORD ftMultiplier, FILETIME ftMultiplicand)
#uselib "MAPI32.dll"
#cfunc global FtMulDw "FtMulDw" int, int
; res = FtMulDw(ftMultiplier, ftMultiplicand)
; ftMultiplier : DWORD -> "int"
; ftMultiplicand : 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")
	procFtMulDw = mapi32.NewProc("FtMulDw")
)

// ftMultiplier (DWORD), ftMultiplicand (FILETIME)
r1, _, err := procFtMulDw.Call(
	uintptr(ftMultiplier),
	uintptr(ftMultiplicand),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // FILETIME

function FtMulDw(
  ftMultiplier: DWORD;   // DWORD
  ftMultiplicand: FILETIME   // FILETIME
): FILETIME; stdcall;
  external 'MAPI32.dll' name 'FtMulDw';

result := DllCall("MAPI32\FtMulDw"
    , "UInt", ftMultiplier   ; DWORD
    , "Ptr", ftMultiplicand   ; FILETIME
    , "Ptr")   ; return: FILETIME

●FtMulDw(ftMultiplier, ftMultiplicand) = DLL("MAPI32.dll", "void* FtMulDw(dword, void*)")
# 呼び出し: FtMulDw(ftMultiplier, ftMultiplicand)
# ftMultiplier : DWORD -> "dword"
# ftMultiplicand : 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)。