LocalFileTimeToLocalSystemTime

// KERNEL32.dll
#include <windows.h>

BOOL LocalFileTimeToLocalSystemTime(
    const TIME_ZONE_INFORMATION* timeZoneInformation,   // optional
    const FILETIME* localFileTime,
    SYSTEMTIME* localSystemTime
);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function LocalFileTimeToLocalSystemTime(
    timeZoneInformation As IntPtr,   ' TIME_ZONE_INFORMATION* optional
    localFileTime As IntPtr,   ' FILETIME*
    localSystemTime As IntPtr   ' SYSTEMTIME* out
) As Boolean
End Function

' timeZoneInformation : TIME_ZONE_INFORMATION* optional
' localFileTime : FILETIME*
' localSystemTime : SYSTEMTIME* out
Declare PtrSafe Function LocalFileTimeToLocalSystemTime Lib "kernel32" ( _
    ByVal timeZoneInformation As LongPtr, _
    ByVal localFileTime As LongPtr, _
    ByVal localSystemTime 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

LocalFileTimeToLocalSystemTime = ctypes.windll.kernel32.LocalFileTimeToLocalSystemTime
LocalFileTimeToLocalSystemTime.restype = wintypes.BOOL
LocalFileTimeToLocalSystemTime.argtypes = [
    ctypes.c_void_p,  # timeZoneInformation : TIME_ZONE_INFORMATION* optional
    ctypes.c_void_p,  # localFileTime : FILETIME*
    ctypes.c_void_p,  # localSystemTime : SYSTEMTIME* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
LocalFileTimeToLocalSystemTime = Fiddle::Function.new(
  lib['LocalFileTimeToLocalSystemTime'],
  [
    Fiddle::TYPE_VOIDP,  # timeZoneInformation : TIME_ZONE_INFORMATION* optional
    Fiddle::TYPE_VOIDP,  # localFileTime : FILETIME*
    Fiddle::TYPE_VOIDP,  # localSystemTime : SYSTEMTIME* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn LocalFileTimeToLocalSystemTime(
        timeZoneInformation: *const TIME_ZONE_INFORMATION,  // TIME_ZONE_INFORMATION* optional
        localFileTime: *const FILETIME,  // FILETIME*
        localSystemTime: *mut SYSTEMTIME  // SYSTEMTIME* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll")]
public static extern bool LocalFileTimeToLocalSystemTime(IntPtr timeZoneInformation, IntPtr localFileTime, IntPtr localSystemTime);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_LocalFileTimeToLocalSystemTime' -Namespace Win32 -PassThru
# $api::LocalFileTimeToLocalSystemTime(timeZoneInformation, localFileTime, localSystemTime)

#uselib "KERNEL32.dll"
#func global LocalFileTimeToLocalSystemTime "LocalFileTimeToLocalSystemTime" sptr, sptr, sptr
; LocalFileTimeToLocalSystemTime varptr(timeZoneInformation), varptr(localFileTime), varptr(localSystemTime)   ; 戻り値は stat
; timeZoneInformation : TIME_ZONE_INFORMATION* optional -> "sptr"
; localFileTime : FILETIME* -> "sptr"
; localSystemTime : SYSTEMTIME* 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 "KERNEL32.dll"
#cfunc global LocalFileTimeToLocalSystemTime "LocalFileTimeToLocalSystemTime" var, var, var
; res = LocalFileTimeToLocalSystemTime(timeZoneInformation, localFileTime, localSystemTime)
; timeZoneInformation : TIME_ZONE_INFORMATION* optional -> "var"
; localFileTime : FILETIME* -> "var"
; localSystemTime : SYSTEMTIME* 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 LocalFileTimeToLocalSystemTime(TIME_ZONE_INFORMATION* timeZoneInformation, FILETIME* localFileTime, SYSTEMTIME* localSystemTime)
#uselib "KERNEL32.dll"
#cfunc global LocalFileTimeToLocalSystemTime "LocalFileTimeToLocalSystemTime" var, var, var
; res = LocalFileTimeToLocalSystemTime(timeZoneInformation, localFileTime, localSystemTime)
; timeZoneInformation : TIME_ZONE_INFORMATION* optional -> "var"
; localFileTime : FILETIME* -> "var"
; localSystemTime : SYSTEMTIME* 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 (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procLocalFileTimeToLocalSystemTime = kernel32.NewProc("LocalFileTimeToLocalSystemTime")
)

// timeZoneInformation (TIME_ZONE_INFORMATION* optional), localFileTime (FILETIME*), localSystemTime (SYSTEMTIME* out)
r1, _, err := procLocalFileTimeToLocalSystemTime.Call(
	uintptr(timeZoneInformation),
	uintptr(localFileTime),
	uintptr(localSystemTime),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function LocalFileTimeToLocalSystemTime(
  timeZoneInformation: Pointer;   // TIME_ZONE_INFORMATION* optional
  localFileTime: Pointer;   // FILETIME*
  localSystemTime: Pointer   // SYSTEMTIME* out
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'LocalFileTimeToLocalSystemTime';

result := DllCall("KERNEL32\LocalFileTimeToLocalSystemTime"
    , "Ptr", timeZoneInformation   ; TIME_ZONE_INFORMATION* optional
    , "Ptr", localFileTime   ; FILETIME*
    , "Ptr", localSystemTime   ; SYSTEMTIME* out
    , "Int")   ; return: BOOL

●LocalFileTimeToLocalSystemTime(timeZoneInformation, localFileTime, localSystemTime) = DLL("KERNEL32.dll", "bool LocalFileTimeToLocalSystemTime(void*, void*, void*)")
# 呼び出し: LocalFileTimeToLocalSystemTime(timeZoneInformation, localFileTime, localSystemTime)
# timeZoneInformation : TIME_ZONE_INFORMATION* optional -> "void*"
# localFileTime : FILETIME* -> "void*"
# localSystemTime : SYSTEMTIME* 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)。