CoDosDateTimeToFileTime

// OLE32.dll
#include <windows.h>

BOOL CoDosDateTimeToFileTime(
    WORD nDosDate,
    WORD nDosTime,
    FILETIME* lpFileTime
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function CoDosDateTimeToFileTime(
    nDosDate As UShort,   ' WORD
    nDosTime As UShort,   ' WORD
    lpFileTime As IntPtr   ' FILETIME* out
) As Boolean
End Function

' nDosDate : WORD
' nDosTime : WORD
' lpFileTime : FILETIME* out
Declare PtrSafe Function CoDosDateTimeToFileTime Lib "ole32" ( _
    ByVal nDosDate As Integer, _
    ByVal nDosTime As Integer, _
    ByVal lpFileTime As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CoDosDateTimeToFileTime = ctypes.windll.ole32.CoDosDateTimeToFileTime
CoDosDateTimeToFileTime.restype = wintypes.BOOL
CoDosDateTimeToFileTime.argtypes = [
    ctypes.c_ushort,  # nDosDate : WORD
    ctypes.c_ushort,  # nDosTime : WORD
    ctypes.c_void_p,  # lpFileTime : FILETIME* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
CoDosDateTimeToFileTime = Fiddle::Function.new(
  lib['CoDosDateTimeToFileTime'],
  [
    -Fiddle::TYPE_SHORT,  # nDosDate : WORD
    -Fiddle::TYPE_SHORT,  # nDosTime : WORD
    Fiddle::TYPE_VOIDP,  # lpFileTime : FILETIME* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn CoDosDateTimeToFileTime(
        nDosDate: u16,  // WORD
        nDosTime: u16,  // WORD
        lpFileTime: *mut FILETIME  // FILETIME* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("OLE32.dll")]
public static extern bool CoDosDateTimeToFileTime(ushort nDosDate, ushort nDosTime, IntPtr lpFileTime);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_CoDosDateTimeToFileTime' -Namespace Win32 -PassThru
# $api::CoDosDateTimeToFileTime(nDosDate, nDosTime, lpFileTime)

#uselib "OLE32.dll"
#func global CoDosDateTimeToFileTime "CoDosDateTimeToFileTime" sptr, sptr, sptr
; CoDosDateTimeToFileTime nDosDate, nDosTime, varptr(lpFileTime)   ; 戻り値は stat
; nDosDate : WORD -> "sptr"
; nDosTime : WORD -> "sptr"
; lpFileTime : FILETIME* 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 "OLE32.dll"
#cfunc global CoDosDateTimeToFileTime "CoDosDateTimeToFileTime" int, int, var
; res = CoDosDateTimeToFileTime(nDosDate, nDosTime, lpFileTime)
; nDosDate : WORD -> "int"
; nDosTime : WORD -> "int"
; lpFileTime : FILETIME* 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 CoDosDateTimeToFileTime(WORD nDosDate, WORD nDosTime, FILETIME* lpFileTime)
#uselib "OLE32.dll"
#cfunc global CoDosDateTimeToFileTime "CoDosDateTimeToFileTime" int, int, var
; res = CoDosDateTimeToFileTime(nDosDate, nDosTime, lpFileTime)
; nDosDate : WORD -> "int"
; nDosTime : WORD -> "int"
; lpFileTime : FILETIME* 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 (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procCoDosDateTimeToFileTime = ole32.NewProc("CoDosDateTimeToFileTime")
)

// nDosDate (WORD), nDosTime (WORD), lpFileTime (FILETIME* out)
r1, _, err := procCoDosDateTimeToFileTime.Call(
	uintptr(nDosDate),
	uintptr(nDosTime),
	uintptr(lpFileTime),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CoDosDateTimeToFileTime(
  nDosDate: Word;   // WORD
  nDosTime: Word;   // WORD
  lpFileTime: Pointer   // FILETIME* out
): BOOL; stdcall;
  external 'OLE32.dll' name 'CoDosDateTimeToFileTime';

result := DllCall("OLE32\CoDosDateTimeToFileTime"
    , "UShort", nDosDate   ; WORD
    , "UShort", nDosTime   ; WORD
    , "Ptr", lpFileTime   ; FILETIME* out
    , "Int")   ; return: BOOL

●CoDosDateTimeToFileTime(nDosDate, nDosTime, lpFileTime) = DLL("OLE32.dll", "bool CoDosDateTimeToFileTime(int, int, void*)")
# 呼び出し: CoDosDateTimeToFileTime(nDosDate, nDosTime, lpFileTime)
# nDosDate : WORD -> "int"
# nDosTime : WORD -> "int"
# lpFileTime : FILETIME* 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)。