PrepareLogArchive

// clfsw32.dll
#include <windows.h>

BOOL PrepareLogArchive(
    HANDLE hLog,
    LPWSTR pszBaseLogFileName,
    DWORD cLen,
    const CLS_LSN* plsnLow,   // optional
    const CLS_LSN* plsnHigh,   // optional
    DWORD* pcActualLength,   // optional
    ULONGLONG* poffBaseLogFileData,
    ULONGLONG* pcbBaseLogFileLength,
    CLS_LSN* plsnBase,
    CLS_LSN* plsnLast,
    CLS_LSN* plsnCurrentArchiveTail,
    void** ppvArchiveContext
);

<DllImport("clfsw32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function PrepareLogArchive(
    hLog As IntPtr,   ' HANDLE
    <MarshalAs(UnmanagedType.LPWStr)> pszBaseLogFileName As System.Text.StringBuilder,   ' LPWSTR in/out
    cLen As UInteger,   ' DWORD
    plsnLow As IntPtr,   ' CLS_LSN* optional
    plsnHigh As IntPtr,   ' CLS_LSN* optional
    pcActualLength As IntPtr,   ' DWORD* optional, out
    <Out> ByRef poffBaseLogFileData As ULong,   ' ULONGLONG* out
    <Out> ByRef pcbBaseLogFileLength As ULong,   ' ULONGLONG* out
    plsnBase As IntPtr,   ' CLS_LSN* out
    plsnLast As IntPtr,   ' CLS_LSN* out
    plsnCurrentArchiveTail As IntPtr,   ' CLS_LSN* out
    ppvArchiveContext As IntPtr   ' void** out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' hLog : HANDLE
' pszBaseLogFileName : LPWSTR in/out
' cLen : DWORD
' plsnLow : CLS_LSN* optional
' plsnHigh : CLS_LSN* optional
' pcActualLength : DWORD* optional, out
' poffBaseLogFileData : ULONGLONG* out
' pcbBaseLogFileLength : ULONGLONG* out
' plsnBase : CLS_LSN* out
' plsnLast : CLS_LSN* out
' plsnCurrentArchiveTail : CLS_LSN* out
' ppvArchiveContext : void** out
Declare PtrSafe Function PrepareLogArchive Lib "clfsw32" ( _
    ByVal hLog As LongPtr, _
    ByVal pszBaseLogFileName As LongPtr, _
    ByVal cLen As Long, _
    ByVal plsnLow As LongPtr, _
    ByVal plsnHigh As LongPtr, _
    ByVal pcActualLength As LongPtr, _
    ByRef poffBaseLogFileData As LongLong, _
    ByRef pcbBaseLogFileLength As LongLong, _
    ByVal plsnBase As LongPtr, _
    ByVal plsnLast As LongPtr, _
    ByVal plsnCurrentArchiveTail As LongPtr, _
    ByVal ppvArchiveContext 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

PrepareLogArchive = ctypes.windll.clfsw32.PrepareLogArchive
PrepareLogArchive.restype = wintypes.BOOL
PrepareLogArchive.argtypes = [
    wintypes.HANDLE,  # hLog : HANDLE
    wintypes.LPWSTR,  # pszBaseLogFileName : LPWSTR in/out
    wintypes.DWORD,  # cLen : DWORD
    ctypes.c_void_p,  # plsnLow : CLS_LSN* optional
    ctypes.c_void_p,  # plsnHigh : CLS_LSN* optional
    ctypes.POINTER(wintypes.DWORD),  # pcActualLength : DWORD* optional, out
    ctypes.POINTER(ctypes.c_ulonglong),  # poffBaseLogFileData : ULONGLONG* out
    ctypes.POINTER(ctypes.c_ulonglong),  # pcbBaseLogFileLength : ULONGLONG* out
    ctypes.c_void_p,  # plsnBase : CLS_LSN* out
    ctypes.c_void_p,  # plsnLast : CLS_LSN* out
    ctypes.c_void_p,  # plsnCurrentArchiveTail : CLS_LSN* out
    ctypes.c_void_p,  # ppvArchiveContext : void** out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('clfsw32.dll')
PrepareLogArchive = Fiddle::Function.new(
  lib['PrepareLogArchive'],
  [
    Fiddle::TYPE_VOIDP,  # hLog : HANDLE
    Fiddle::TYPE_VOIDP,  # pszBaseLogFileName : LPWSTR in/out
    -Fiddle::TYPE_INT,  # cLen : DWORD
    Fiddle::TYPE_VOIDP,  # plsnLow : CLS_LSN* optional
    Fiddle::TYPE_VOIDP,  # plsnHigh : CLS_LSN* optional
    Fiddle::TYPE_VOIDP,  # pcActualLength : DWORD* optional, out
    Fiddle::TYPE_VOIDP,  # poffBaseLogFileData : ULONGLONG* out
    Fiddle::TYPE_VOIDP,  # pcbBaseLogFileLength : ULONGLONG* out
    Fiddle::TYPE_VOIDP,  # plsnBase : CLS_LSN* out
    Fiddle::TYPE_VOIDP,  # plsnLast : CLS_LSN* out
    Fiddle::TYPE_VOIDP,  # plsnCurrentArchiveTail : CLS_LSN* out
    Fiddle::TYPE_VOIDP,  # ppvArchiveContext : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "clfsw32")]
extern "system" {
    fn PrepareLogArchive(
        hLog: *mut core::ffi::c_void,  // HANDLE
        pszBaseLogFileName: *mut u16,  // LPWSTR in/out
        cLen: u32,  // DWORD
        plsnLow: *const CLS_LSN,  // CLS_LSN* optional
        plsnHigh: *const CLS_LSN,  // CLS_LSN* optional
        pcActualLength: *mut u32,  // DWORD* optional, out
        poffBaseLogFileData: *mut u64,  // ULONGLONG* out
        pcbBaseLogFileLength: *mut u64,  // ULONGLONG* out
        plsnBase: *mut CLS_LSN,  // CLS_LSN* out
        plsnLast: *mut CLS_LSN,  // CLS_LSN* out
        plsnCurrentArchiveTail: *mut CLS_LSN,  // CLS_LSN* out
        ppvArchiveContext: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("clfsw32.dll", SetLastError = true)]
public static extern bool PrepareLogArchive(IntPtr hLog, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pszBaseLogFileName, uint cLen, IntPtr plsnLow, IntPtr plsnHigh, IntPtr pcActualLength, out ulong poffBaseLogFileData, out ulong pcbBaseLogFileLength, IntPtr plsnBase, IntPtr plsnLast, IntPtr plsnCurrentArchiveTail, IntPtr ppvArchiveContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'clfsw32_PrepareLogArchive' -Namespace Win32 -PassThru
# $api::PrepareLogArchive(hLog, pszBaseLogFileName, cLen, plsnLow, plsnHigh, pcActualLength, poffBaseLogFileData, pcbBaseLogFileLength, plsnBase, plsnLast, plsnCurrentArchiveTail, ppvArchiveContext)

#uselib "clfsw32.dll"
#func global PrepareLogArchive "PrepareLogArchive" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; PrepareLogArchive hLog, varptr(pszBaseLogFileName), cLen, varptr(plsnLow), varptr(plsnHigh), varptr(pcActualLength), varptr(poffBaseLogFileData), varptr(pcbBaseLogFileLength), varptr(plsnBase), varptr(plsnLast), varptr(plsnCurrentArchiveTail), ppvArchiveContext   ; 戻り値は stat
; hLog : HANDLE -> "sptr"
; pszBaseLogFileName : LPWSTR in/out -> "sptr"
; cLen : DWORD -> "sptr"
; plsnLow : CLS_LSN* optional -> "sptr"
; plsnHigh : CLS_LSN* optional -> "sptr"
; pcActualLength : DWORD* optional, out -> "sptr"
; poffBaseLogFileData : ULONGLONG* out -> "sptr"
; pcbBaseLogFileLength : ULONGLONG* out -> "sptr"
; plsnBase : CLS_LSN* out -> "sptr"
; plsnLast : CLS_LSN* out -> "sptr"
; plsnCurrentArchiveTail : CLS_LSN* out -> "sptr"
; ppvArchiveContext : void** 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。

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

var (
	clfsw32 = windows.NewLazySystemDLL("clfsw32.dll")
	procPrepareLogArchive = clfsw32.NewProc("PrepareLogArchive")
)

// hLog (HANDLE), pszBaseLogFileName (LPWSTR in/out), cLen (DWORD), plsnLow (CLS_LSN* optional), plsnHigh (CLS_LSN* optional), pcActualLength (DWORD* optional, out), poffBaseLogFileData (ULONGLONG* out), pcbBaseLogFileLength (ULONGLONG* out), plsnBase (CLS_LSN* out), plsnLast (CLS_LSN* out), plsnCurrentArchiveTail (CLS_LSN* out), ppvArchiveContext (void** out)
r1, _, err := procPrepareLogArchive.Call(
	uintptr(hLog),
	uintptr(pszBaseLogFileName),
	uintptr(cLen),
	uintptr(plsnLow),
	uintptr(plsnHigh),
	uintptr(pcActualLength),
	uintptr(poffBaseLogFileData),
	uintptr(pcbBaseLogFileLength),
	uintptr(plsnBase),
	uintptr(plsnLast),
	uintptr(plsnCurrentArchiveTail),
	uintptr(ppvArchiveContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function PrepareLogArchive(
  hLog: THandle;   // HANDLE
  pszBaseLogFileName: PWideChar;   // LPWSTR in/out
  cLen: DWORD;   // DWORD
  plsnLow: Pointer;   // CLS_LSN* optional
  plsnHigh: Pointer;   // CLS_LSN* optional
  pcActualLength: Pointer;   // DWORD* optional, out
  poffBaseLogFileData: Pointer;   // ULONGLONG* out
  pcbBaseLogFileLength: Pointer;   // ULONGLONG* out
  plsnBase: Pointer;   // CLS_LSN* out
  plsnLast: Pointer;   // CLS_LSN* out
  plsnCurrentArchiveTail: Pointer;   // CLS_LSN* out
  ppvArchiveContext: Pointer   // void** out
): BOOL; stdcall;
  external 'clfsw32.dll' name 'PrepareLogArchive';

result := DllCall("clfsw32\PrepareLogArchive"
    , "Ptr", hLog   ; HANDLE
    , "Ptr", pszBaseLogFileName   ; LPWSTR in/out
    , "UInt", cLen   ; DWORD
    , "Ptr", plsnLow   ; CLS_LSN* optional
    , "Ptr", plsnHigh   ; CLS_LSN* optional
    , "Ptr", pcActualLength   ; DWORD* optional, out
    , "Ptr", poffBaseLogFileData   ; ULONGLONG* out
    , "Ptr", pcbBaseLogFileLength   ; ULONGLONG* out
    , "Ptr", plsnBase   ; CLS_LSN* out
    , "Ptr", plsnLast   ; CLS_LSN* out
    , "Ptr", plsnCurrentArchiveTail   ; CLS_LSN* out
    , "Ptr", ppvArchiveContext   ; void** out
    , "Int")   ; return: BOOL

●PrepareLogArchive(hLog, pszBaseLogFileName, cLen, plsnLow, plsnHigh, pcActualLength, poffBaseLogFileData, pcbBaseLogFileLength, plsnBase, plsnLast, plsnCurrentArchiveTail, ppvArchiveContext) = DLL("clfsw32.dll", "bool PrepareLogArchive(void*, char*, dword, void*, void*, void*, void*, void*, void*, void*, void*, void*)")
# 呼び出し: PrepareLogArchive(hLog, pszBaseLogFileName, cLen, plsnLow, plsnHigh, pcActualLength, poffBaseLogFileData, pcbBaseLogFileLength, plsnBase, plsnLast, plsnCurrentArchiveTail, ppvArchiveContext)
# hLog : HANDLE -> "void*"
# pszBaseLogFileName : LPWSTR in/out -> "char*"
# cLen : DWORD -> "dword"
# plsnLow : CLS_LSN* optional -> "void*"
# plsnHigh : CLS_LSN* optional -> "void*"
# pcActualLength : DWORD* optional, out -> "void*"
# poffBaseLogFileData : ULONGLONG* out -> "void*"
# pcbBaseLogFileLength : ULONGLONG* out -> "void*"
# plsnBase : CLS_LSN* out -> "void*"
# plsnLast : CLS_LSN* out -> "void*"
# plsnCurrentArchiveTail : CLS_LSN* out -> "void*"
# ppvArchiveContext : void** 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)。

const std = @import("std");

extern "clfsw32" fn PrepareLogArchive(
    hLog: ?*anyopaque, // HANDLE
    pszBaseLogFileName: [*c]u16, // LPWSTR in/out
    cLen: u32, // DWORD
    plsnLow: [*c]CLS_LSN, // CLS_LSN* optional
    plsnHigh: [*c]CLS_LSN, // CLS_LSN* optional
    pcActualLength: [*c]u32, // DWORD* optional, out
    poffBaseLogFileData: [*c]u64, // ULONGLONG* out
    pcbBaseLogFileLength: [*c]u64, // ULONGLONG* out
    plsnBase: [*c]CLS_LSN, // CLS_LSN* out
    plsnLast: [*c]CLS_LSN, // CLS_LSN* out
    plsnCurrentArchiveTail: [*c]CLS_LSN, // CLS_LSN* out
    ppvArchiveContext: ?*anyopaque // void** out
) callconv(std.os.windows.WINAPI) i32;

proc PrepareLogArchive(
    hLog: pointer,  # HANDLE
    pszBaseLogFileName: ptr uint16,  # LPWSTR in/out
    cLen: uint32,  # DWORD
    plsnLow: ptr CLS_LSN,  # CLS_LSN* optional
    plsnHigh: ptr CLS_LSN,  # CLS_LSN* optional
    pcActualLength: ptr uint32,  # DWORD* optional, out
    poffBaseLogFileData: ptr uint64,  # ULONGLONG* out
    pcbBaseLogFileLength: ptr uint64,  # ULONGLONG* out
    plsnBase: ptr CLS_LSN,  # CLS_LSN* out
    plsnLast: ptr CLS_LSN,  # CLS_LSN* out
    plsnCurrentArchiveTail: ptr CLS_LSN,  # CLS_LSN* out
    ppvArchiveContext: pointer  # void** out
): int32 {.importc: "PrepareLogArchive", stdcall, dynlib: "clfsw32.dll".}

pragma(lib, "clfsw32");
extern(Windows)
int PrepareLogArchive(
    void* hLog,   // HANDLE
    wchar* pszBaseLogFileName,   // LPWSTR in/out
    uint cLen,   // DWORD
    CLS_LSN* plsnLow,   // CLS_LSN* optional
    CLS_LSN* plsnHigh,   // CLS_LSN* optional
    uint* pcActualLength,   // DWORD* optional, out
    ulong* poffBaseLogFileData,   // ULONGLONG* out
    ulong* pcbBaseLogFileLength,   // ULONGLONG* out
    CLS_LSN* plsnBase,   // CLS_LSN* out
    CLS_LSN* plsnLast,   // CLS_LSN* out
    CLS_LSN* plsnCurrentArchiveTail,   // CLS_LSN* out
    void** ppvArchiveContext   // void** out
);

ccall((:PrepareLogArchive, "clfsw32.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{UInt16}, UInt32, Ptr{CLS_LSN}, Ptr{CLS_LSN}, Ptr{UInt32}, Ptr{UInt64}, Ptr{UInt64}, Ptr{CLS_LSN}, Ptr{CLS_LSN}, Ptr{CLS_LSN}, Ptr{Cvoid}),
      hLog, pszBaseLogFileName, cLen, plsnLow, plsnHigh, pcActualLength, poffBaseLogFileData, pcbBaseLogFileLength, plsnBase, plsnLast, plsnCurrentArchiveTail, ppvArchiveContext)
# hLog : HANDLE -> Ptr{Cvoid}
# pszBaseLogFileName : LPWSTR in/out -> Ptr{UInt16}
# cLen : DWORD -> UInt32
# plsnLow : CLS_LSN* optional -> Ptr{CLS_LSN}
# plsnHigh : CLS_LSN* optional -> Ptr{CLS_LSN}
# pcActualLength : DWORD* optional, out -> Ptr{UInt32}
# poffBaseLogFileData : ULONGLONG* out -> Ptr{UInt64}
# pcbBaseLogFileLength : ULONGLONG* out -> Ptr{UInt64}
# plsnBase : CLS_LSN* out -> Ptr{CLS_LSN}
# plsnLast : CLS_LSN* out -> Ptr{CLS_LSN}
# plsnCurrentArchiveTail : CLS_LSN* out -> Ptr{CLS_LSN}
# ppvArchiveContext : void** out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t PrepareLogArchive(
    void* hLog,
    uint16_t* pszBaseLogFileName,
    uint32_t cLen,
    void* plsnLow,
    void* plsnHigh,
    uint32_t* pcActualLength,
    uint64_t* poffBaseLogFileData,
    uint64_t* pcbBaseLogFileLength,
    void* plsnBase,
    void* plsnLast,
    void* plsnCurrentArchiveTail,
    void** ppvArchiveContext);
]]
local clfsw32 = ffi.load("clfsw32")
-- clfsw32.PrepareLogArchive(hLog, pszBaseLogFileName, cLen, plsnLow, plsnHigh, pcActualLength, poffBaseLogFileData, pcbBaseLogFileLength, plsnBase, plsnLast, plsnCurrentArchiveTail, ppvArchiveContext)
-- hLog : HANDLE
-- pszBaseLogFileName : LPWSTR in/out
-- cLen : DWORD
-- plsnLow : CLS_LSN* optional
-- plsnHigh : CLS_LSN* optional
-- pcActualLength : DWORD* optional, out
-- poffBaseLogFileData : ULONGLONG* out
-- pcbBaseLogFileLength : ULONGLONG* out
-- plsnBase : CLS_LSN* out
-- plsnLast : CLS_LSN* out
-- plsnCurrentArchiveTail : CLS_LSN* out
-- ppvArchiveContext : void** out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('clfsw32.dll');
const PrepareLogArchive = lib.func('__stdcall', 'PrepareLogArchive', 'int32_t', ['void *', 'uint16_t *', 'uint32_t', 'void *', 'void *', 'uint32_t *', 'uint64_t *', 'uint64_t *', 'void *', 'void *', 'void *', 'void *']);
// PrepareLogArchive(hLog, pszBaseLogFileName, cLen, plsnLow, plsnHigh, pcActualLength, poffBaseLogFileData, pcbBaseLogFileLength, plsnBase, plsnLast, plsnCurrentArchiveTail, ppvArchiveContext)
// hLog : HANDLE -> 'void *'
// pszBaseLogFileName : LPWSTR in/out -> 'uint16_t *'
// cLen : DWORD -> 'uint32_t'
// plsnLow : CLS_LSN* optional -> 'void *'
// plsnHigh : CLS_LSN* optional -> 'void *'
// pcActualLength : DWORD* optional, out -> 'uint32_t *'
// poffBaseLogFileData : ULONGLONG* out -> 'uint64_t *'
// pcbBaseLogFileLength : ULONGLONG* out -> 'uint64_t *'
// plsnBase : CLS_LSN* out -> 'void *'
// plsnLast : CLS_LSN* out -> 'void *'
// plsnCurrentArchiveTail : CLS_LSN* out -> 'void *'
// ppvArchiveContext : void** out -> 'void *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("clfsw32.dll", {
  PrepareLogArchive: { parameters: ["pointer", "buffer", "u32", "pointer", "pointer", "pointer", "pointer", "pointer", "pointer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.PrepareLogArchive(hLog, pszBaseLogFileName, cLen, plsnLow, plsnHigh, pcActualLength, poffBaseLogFileData, pcbBaseLogFileLength, plsnBase, plsnLast, plsnCurrentArchiveTail, ppvArchiveContext)
// hLog : HANDLE -> "pointer"
// pszBaseLogFileName : LPWSTR in/out -> "buffer"
// cLen : DWORD -> "u32"
// plsnLow : CLS_LSN* optional -> "pointer"
// plsnHigh : CLS_LSN* optional -> "pointer"
// pcActualLength : DWORD* optional, out -> "pointer"
// poffBaseLogFileData : ULONGLONG* out -> "pointer"
// pcbBaseLogFileLength : ULONGLONG* out -> "pointer"
// plsnBase : CLS_LSN* out -> "pointer"
// plsnLast : CLS_LSN* out -> "pointer"
// plsnCurrentArchiveTail : CLS_LSN* out -> "pointer"
// ppvArchiveContext : void** out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t PrepareLogArchive(
    void* hLog,
    uint16_t* pszBaseLogFileName,
    uint32_t cLen,
    void* plsnLow,
    void* plsnHigh,
    uint32_t* pcActualLength,
    uint64_t* poffBaseLogFileData,
    uint64_t* pcbBaseLogFileLength,
    void* plsnBase,
    void* plsnLast,
    void* plsnCurrentArchiveTail,
    void** ppvArchiveContext);
C, "clfsw32.dll");
// $ffi->PrepareLogArchive(hLog, pszBaseLogFileName, cLen, plsnLow, plsnHigh, pcActualLength, poffBaseLogFileData, pcbBaseLogFileLength, plsnBase, plsnLast, plsnCurrentArchiveTail, ppvArchiveContext);
// hLog : HANDLE
// pszBaseLogFileName : LPWSTR in/out
// cLen : DWORD
// plsnLow : CLS_LSN* optional
// plsnHigh : CLS_LSN* optional
// pcActualLength : DWORD* optional, out
// poffBaseLogFileData : ULONGLONG* out
// pcbBaseLogFileLength : ULONGLONG* out
// plsnBase : CLS_LSN* out
// plsnLast : CLS_LSN* out
// plsnCurrentArchiveTail : CLS_LSN* out
// ppvArchiveContext : void** out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Clfsw32 extends StdCallLibrary {
    Clfsw32 INSTANCE = Native.load("clfsw32", Clfsw32.class);
    boolean PrepareLogArchive(
        Pointer hLog,   // HANDLE
        char[] pszBaseLogFileName,   // LPWSTR in/out
        int cLen,   // DWORD
        Pointer plsnLow,   // CLS_LSN* optional
        Pointer plsnHigh,   // CLS_LSN* optional
        IntByReference pcActualLength,   // DWORD* optional, out
        LongByReference poffBaseLogFileData,   // ULONGLONG* out
        LongByReference pcbBaseLogFileLength,   // ULONGLONG* out
        Pointer plsnBase,   // CLS_LSN* out
        Pointer plsnLast,   // CLS_LSN* out
        Pointer plsnCurrentArchiveTail,   // CLS_LSN* out
        Pointer ppvArchiveContext   // void** out
    );
}

@[Link("clfsw32")]
lib Libclfsw32
  fun PrepareLogArchive = PrepareLogArchive(
    hLog : Void*,   # HANDLE
    pszBaseLogFileName : UInt16*,   # LPWSTR in/out
    cLen : UInt32,   # DWORD
    plsnLow : CLS_LSN*,   # CLS_LSN* optional
    plsnHigh : CLS_LSN*,   # CLS_LSN* optional
    pcActualLength : UInt32*,   # DWORD* optional, out
    poffBaseLogFileData : UInt64*,   # ULONGLONG* out
    pcbBaseLogFileLength : UInt64*,   # ULONGLONG* out
    plsnBase : CLS_LSN*,   # CLS_LSN* out
    plsnLast : CLS_LSN*,   # CLS_LSN* out
    plsnCurrentArchiveTail : CLS_LSN*,   # CLS_LSN* out
    ppvArchiveContext : Void**   # void** out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef PrepareLogArchiveNative = Int32 Function(Pointer<Void>, Pointer<Utf16>, Uint32, Pointer<Void>, Pointer<Void>, Pointer<Uint32>, Pointer<Uint64>, Pointer<Uint64>, Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Void>);
typedef PrepareLogArchiveDart = int Function(Pointer<Void>, Pointer<Utf16>, int, Pointer<Void>, Pointer<Void>, Pointer<Uint32>, Pointer<Uint64>, Pointer<Uint64>, Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Void>);
final PrepareLogArchive = DynamicLibrary.open('clfsw32.dll')
    .lookupFunction<PrepareLogArchiveNative, PrepareLogArchiveDart>('PrepareLogArchive');
// hLog : HANDLE -> Pointer<Void>
// pszBaseLogFileName : LPWSTR in/out -> Pointer<Utf16>
// cLen : DWORD -> Uint32
// plsnLow : CLS_LSN* optional -> Pointer<Void>
// plsnHigh : CLS_LSN* optional -> Pointer<Void>
// pcActualLength : DWORD* optional, out -> Pointer<Uint32>
// poffBaseLogFileData : ULONGLONG* out -> Pointer<Uint64>
// pcbBaseLogFileLength : ULONGLONG* out -> Pointer<Uint64>
// plsnBase : CLS_LSN* out -> Pointer<Void>
// plsnLast : CLS_LSN* out -> Pointer<Void>
// plsnCurrentArchiveTail : CLS_LSN* out -> Pointer<Void>
// ppvArchiveContext : void** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function PrepareLogArchive(
  hLog: THandle;   // HANDLE
  pszBaseLogFileName: PWideChar;   // LPWSTR in/out
  cLen: DWORD;   // DWORD
  plsnLow: Pointer;   // CLS_LSN* optional
  plsnHigh: Pointer;   // CLS_LSN* optional
  pcActualLength: Pointer;   // DWORD* optional, out
  poffBaseLogFileData: Pointer;   // ULONGLONG* out
  pcbBaseLogFileLength: Pointer;   // ULONGLONG* out
  plsnBase: Pointer;   // CLS_LSN* out
  plsnLast: Pointer;   // CLS_LSN* out
  plsnCurrentArchiveTail: Pointer;   // CLS_LSN* out
  ppvArchiveContext: Pointer   // void** out
): BOOL; stdcall;
  external 'clfsw32.dll' name 'PrepareLogArchive';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "PrepareLogArchive"
  c_PrepareLogArchive :: Ptr () -> CWString -> Word32 -> Ptr () -> Ptr () -> Ptr Word32 -> Ptr Word64 -> Ptr Word64 -> Ptr () -> Ptr () -> Ptr () -> Ptr () -> IO CInt
-- hLog : HANDLE -> Ptr ()
-- pszBaseLogFileName : LPWSTR in/out -> CWString
-- cLen : DWORD -> Word32
-- plsnLow : CLS_LSN* optional -> Ptr ()
-- plsnHigh : CLS_LSN* optional -> Ptr ()
-- pcActualLength : DWORD* optional, out -> Ptr Word32
-- poffBaseLogFileData : ULONGLONG* out -> Ptr Word64
-- pcbBaseLogFileLength : ULONGLONG* out -> Ptr Word64
-- plsnBase : CLS_LSN* out -> Ptr ()
-- plsnLast : CLS_LSN* out -> Ptr ()
-- plsnCurrentArchiveTail : CLS_LSN* out -> Ptr ()
-- ppvArchiveContext : void** out -> Ptr ()
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let preparelogarchive =
  foreign "PrepareLogArchive"
    ((ptr void) @-> (ptr uint16_t) @-> uint32_t @-> (ptr void) @-> (ptr void) @-> (ptr uint32_t) @-> (ptr uint64_t) @-> (ptr uint64_t) @-> (ptr void) @-> (ptr void) @-> (ptr void) @-> (ptr void) @-> returning int32_t)
(* hLog : HANDLE -> (ptr void) *)
(* pszBaseLogFileName : LPWSTR in/out -> (ptr uint16_t) *)
(* cLen : DWORD -> uint32_t *)
(* plsnLow : CLS_LSN* optional -> (ptr void) *)
(* plsnHigh : CLS_LSN* optional -> (ptr void) *)
(* pcActualLength : DWORD* optional, out -> (ptr uint32_t) *)
(* poffBaseLogFileData : ULONGLONG* out -> (ptr uint64_t) *)
(* pcbBaseLogFileLength : ULONGLONG* out -> (ptr uint64_t) *)
(* plsnBase : CLS_LSN* out -> (ptr void) *)
(* plsnLast : CLS_LSN* out -> (ptr void) *)
(* plsnCurrentArchiveTail : CLS_LSN* out -> (ptr void) *)
(* ppvArchiveContext : void** out -> (ptr void) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library clfsw32 (t "clfsw32.dll"))
(cffi:use-foreign-library clfsw32)

(cffi:defcfun ("PrepareLogArchive" prepare-log-archive :convention :stdcall) :int32
  (h-log :pointer)   ; HANDLE
  (psz-base-log-file-name :pointer)   ; LPWSTR in/out
  (c-len :uint32)   ; DWORD
  (plsn-low :pointer)   ; CLS_LSN* optional
  (plsn-high :pointer)   ; CLS_LSN* optional
  (pc-actual-length :pointer)   ; DWORD* optional, out
  (poff-base-log-file-data :pointer)   ; ULONGLONG* out
  (pcb-base-log-file-length :pointer)   ; ULONGLONG* out
  (plsn-base :pointer)   ; CLS_LSN* out
  (plsn-last :pointer)   ; CLS_LSN* out
  (plsn-current-archive-tail :pointer)   ; CLS_LSN* out
  (ppv-archive-context :pointer))   ; void** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $PrepareLogArchive = Win32::API::More->new('clfsw32',
    'BOOL PrepareLogArchive(HANDLE hLog, LPWSTR pszBaseLogFileName, DWORD cLen, LPVOID plsnLow, LPVOID plsnHigh, LPVOID pcActualLength, LPVOID poffBaseLogFileData, LPVOID pcbBaseLogFileLength, LPVOID plsnBase, LPVOID plsnLast, LPVOID plsnCurrentArchiveTail, LPVOID ppvArchiveContext)');
# my $ret = $PrepareLogArchive->Call($hLog, $pszBaseLogFileName, $cLen, $plsnLow, $plsnHigh, $pcActualLength, $poffBaseLogFileData, $pcbBaseLogFileLength, $plsnBase, $plsnLast, $plsnCurrentArchiveTail, $ppvArchiveContext);
# hLog : HANDLE -> HANDLE
# pszBaseLogFileName : LPWSTR in/out -> LPWSTR
# cLen : DWORD -> DWORD
# plsnLow : CLS_LSN* optional -> LPVOID
# plsnHigh : CLS_LSN* optional -> LPVOID
# pcActualLength : DWORD* optional, out -> LPVOID
# poffBaseLogFileData : ULONGLONG* out -> LPVOID
# pcbBaseLogFileLength : ULONGLONG* out -> LPVOID
# plsnBase : CLS_LSN* out -> LPVOID
# plsnLast : CLS_LSN* out -> LPVOID
# plsnCurrentArchiveTail : CLS_LSN* out -> LPVOID
# ppvArchiveContext : void** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。