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SetupQueryFileLogW

関数
ファイルログから指定ファイルの記録情報を取得する。
DLLSETUPAPI.dll文字セットUnicode (-W)呼出規約winapiSetLastErrorあり対応OSWindows XP 以降
📘 Microsoft Learn (日本語) · English

シグネチャ

// SETUPAPI.dll  (Unicode / -W)
#include <windows.h>

BOOL SetupQueryFileLogW(
    void* FileLogHandle,
    LPCWSTR LogSectionName,   // optional
    LPCWSTR TargetFilename,
    SetupFileLogInfo DesiredInfo,
    LPWSTR DataOut,   // optional
    DWORD ReturnBufferSize,
    DWORD* RequiredSize   // optional
);

パラメーター

名前型方向説明
FileLogHandlevoid*in問い合わせ対象のファイルログのハンドル。
LogSectionNameLPCWSTRinoptional対象エントリが属するセクション名(Unicode)。NULL可。
TargetFilenameLPCWSTRin情報を取得する対象のターゲットファイル名(Unicode)。
DesiredInfoSetupFileLogInfoin取得する情報の種類を示すSetupFileLogInfo列挙値。
DataOutLPWSTRoutoptional取得した情報を受け取るバッファ(Unicode)。NULL可。
ReturnBufferSizeDWORDinDataOutバッファの文字数サイズ。
RequiredSizeDWORD*outoptional必要なバッファ文字数を受け取るDWORDへのポインタ。NULL可。

戻り値の型: BOOL

各言語での呼び出し定義

// SETUPAPI.dll  (Unicode / -W)
#include <windows.h>

BOOL SetupQueryFileLogW(
    void* FileLogHandle,
    LPCWSTR LogSectionName,   // optional
    LPCWSTR TargetFilename,
    SetupFileLogInfo DesiredInfo,
    LPWSTR DataOut,   // optional
    DWORD ReturnBufferSize,
    DWORD* RequiredSize   // optional
);
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SETUPAPI.dll", CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
static extern bool SetupQueryFileLogW(
    IntPtr FileLogHandle,   // void*
    [MarshalAs(UnmanagedType.LPWStr)] string LogSectionName,   // LPCWSTR optional
    [MarshalAs(UnmanagedType.LPWStr)] string TargetFilename,   // LPCWSTR
    int DesiredInfo,   // SetupFileLogInfo
    [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder DataOut,   // LPWSTR optional, out
    uint ReturnBufferSize,   // DWORD
    IntPtr RequiredSize   // DWORD* optional, out
);
<DllImport("SETUPAPI.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetupQueryFileLogW(
    FileLogHandle As IntPtr,   ' void*
    <MarshalAs(UnmanagedType.LPWStr)> LogSectionName As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> TargetFilename As String,   ' LPCWSTR
    DesiredInfo As Integer,   ' SetupFileLogInfo
    <MarshalAs(UnmanagedType.LPWStr)> DataOut As System.Text.StringBuilder,   ' LPWSTR optional, out
    ReturnBufferSize As UInteger,   ' DWORD
    RequiredSize As IntPtr   ' DWORD* optional, out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function
' FileLogHandle : void*
' LogSectionName : LPCWSTR optional
' TargetFilename : LPCWSTR
' DesiredInfo : SetupFileLogInfo
' DataOut : LPWSTR optional, out
' ReturnBufferSize : DWORD
' RequiredSize : DWORD* optional, out
Declare PtrSafe Function SetupQueryFileLogW Lib "setupapi" ( _
    ByVal FileLogHandle As LongPtr, _
    ByVal LogSectionName As LongPtr, _
    ByVal TargetFilename As LongPtr, _
    ByVal DesiredInfo As Long, _
    ByVal DataOut As LongPtr, _
    ByVal ReturnBufferSize As Long, _
    ByVal RequiredSize As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

SetupQueryFileLogW = ctypes.windll.setupapi.SetupQueryFileLogW
SetupQueryFileLogW.restype = wintypes.BOOL
SetupQueryFileLogW.argtypes = [
    ctypes.POINTER(None),  # FileLogHandle : void*
    wintypes.LPCWSTR,  # LogSectionName : LPCWSTR optional
    wintypes.LPCWSTR,  # TargetFilename : LPCWSTR
    ctypes.c_int,  # DesiredInfo : SetupFileLogInfo
    wintypes.LPWSTR,  # DataOut : LPWSTR optional, out
    wintypes.DWORD,  # ReturnBufferSize : DWORD
    ctypes.POINTER(wintypes.DWORD),  # RequiredSize : DWORD* optional, out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SETUPAPI.dll')
SetupQueryFileLogW = Fiddle::Function.new(
  lib['SetupQueryFileLogW'],
  [
    Fiddle::TYPE_VOIDP,  # FileLogHandle : void*
    Fiddle::TYPE_VOIDP,  # LogSectionName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # TargetFilename : LPCWSTR
    Fiddle::TYPE_INT,  # DesiredInfo : SetupFileLogInfo
    Fiddle::TYPE_VOIDP,  # DataOut : LPWSTR optional, out
    -Fiddle::TYPE_INT,  # ReturnBufferSize : DWORD
    Fiddle::TYPE_VOIDP,  # RequiredSize : DWORD* optional, out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"
#[link(name = "setupapi")]
extern "system" {
    fn SetupQueryFileLogW(
        FileLogHandle: *mut (),  // void*
        LogSectionName: *const u16,  // LPCWSTR optional
        TargetFilename: *const u16,  // LPCWSTR
        DesiredInfo: i32,  // SetupFileLogInfo
        DataOut: *mut u16,  // LPWSTR optional, out
        ReturnBufferSize: u32,  // DWORD
        RequiredSize: *mut u32  // DWORD* optional, out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SETUPAPI.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool SetupQueryFileLogW(IntPtr FileLogHandle, [MarshalAs(UnmanagedType.LPWStr)] string LogSectionName, [MarshalAs(UnmanagedType.LPWStr)] string TargetFilename, int DesiredInfo, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder DataOut, uint ReturnBufferSize, IntPtr RequiredSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SETUPAPI_SetupQueryFileLogW' -Namespace Win32 -PassThru
# $api::SetupQueryFileLogW(FileLogHandle, LogSectionName, TargetFilename, DesiredInfo, DataOut, ReturnBufferSize, RequiredSize)
#uselib "SETUPAPI.dll"
#func global SetupQueryFileLogW "SetupQueryFileLogW" wptr, wptr, wptr, wptr, wptr, wptr, wptr
; SetupQueryFileLogW FileLogHandle, LogSectionName, TargetFilename, DesiredInfo, varptr(DataOut), ReturnBufferSize, varptr(RequiredSize)   ; 戻り値は stat
; FileLogHandle : void* -> "wptr"
; LogSectionName : LPCWSTR optional -> "wptr"
; TargetFilename : LPCWSTR -> "wptr"
; DesiredInfo : SetupFileLogInfo -> "wptr"
; DataOut : LPWSTR optional, out -> "wptr"
; ReturnBufferSize : DWORD -> "wptr"
; RequiredSize : DWORD* optional, out -> "wptr"
; ※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。
出力引数: 
#uselib "SETUPAPI.dll"
#cfunc global SetupQueryFileLogW "SetupQueryFileLogW" sptr, wstr, wstr, int, var, int, var
; res = SetupQueryFileLogW(FileLogHandle, LogSectionName, TargetFilename, DesiredInfo, DataOut, ReturnBufferSize, RequiredSize)
; FileLogHandle : void* -> "sptr"
; LogSectionName : LPCWSTR optional -> "wstr"
; TargetFilename : LPCWSTR -> "wstr"
; DesiredInfo : SetupFileLogInfo -> "int"
; DataOut : LPWSTR optional, out -> "var"
; ReturnBufferSize : DWORD -> "int"
; RequiredSize : DWORD* optional, 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。
出力引数: 
; BOOL SetupQueryFileLogW(void* FileLogHandle, LPCWSTR LogSectionName, LPCWSTR TargetFilename, SetupFileLogInfo DesiredInfo, LPWSTR DataOut, DWORD ReturnBufferSize, DWORD* RequiredSize)
#uselib "SETUPAPI.dll"
#cfunc global SetupQueryFileLogW "SetupQueryFileLogW" intptr, wstr, wstr, int, var, int, var
; res = SetupQueryFileLogW(FileLogHandle, LogSectionName, TargetFilename, DesiredInfo, DataOut, ReturnBufferSize, RequiredSize)
; FileLogHandle : void* -> "intptr"
; LogSectionName : LPCWSTR optional -> "wstr"
; TargetFilename : LPCWSTR -> "wstr"
; DesiredInfo : SetupFileLogInfo -> "int"
; DataOut : LPWSTR optional, out -> "var"
; ReturnBufferSize : DWORD -> "int"
; RequiredSize : DWORD* optional, 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 (
	setupapi = windows.NewLazySystemDLL("SETUPAPI.dll")
	procSetupQueryFileLogW = setupapi.NewProc("SetupQueryFileLogW")
)

// FileLogHandle (void*), LogSectionName (LPCWSTR optional), TargetFilename (LPCWSTR), DesiredInfo (SetupFileLogInfo), DataOut (LPWSTR optional, out), ReturnBufferSize (DWORD), RequiredSize (DWORD* optional, out)
r1, _, err := procSetupQueryFileLogW.Call(
	uintptr(FileLogHandle),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(LogSectionName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(TargetFilename))),
	uintptr(DesiredInfo),
	uintptr(DataOut),
	uintptr(ReturnBufferSize),
	uintptr(RequiredSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL
function SetupQueryFileLogW(
  FileLogHandle: Pointer;   // void*
  LogSectionName: PWideChar;   // LPCWSTR optional
  TargetFilename: PWideChar;   // LPCWSTR
  DesiredInfo: Integer;   // SetupFileLogInfo
  DataOut: PWideChar;   // LPWSTR optional, out
  ReturnBufferSize: DWORD;   // DWORD
  RequiredSize: Pointer   // DWORD* optional, out
): BOOL; stdcall;
  external 'SETUPAPI.dll' name 'SetupQueryFileLogW';
result := DllCall("SETUPAPI\SetupQueryFileLogW"
    , "Ptr", FileLogHandle   ; void*
    , "WStr", LogSectionName   ; LPCWSTR optional
    , "WStr", TargetFilename   ; LPCWSTR
    , "Int", DesiredInfo   ; SetupFileLogInfo
    , "Ptr", DataOut   ; LPWSTR optional, out
    , "UInt", ReturnBufferSize   ; DWORD
    , "Ptr", RequiredSize   ; DWORD* optional, out
    , "Int")   ; return: BOOL
●SetupQueryFileLogW(FileLogHandle, LogSectionName, TargetFilename, DesiredInfo, DataOut, ReturnBufferSize, RequiredSize) = DLL("SETUPAPI.dll", "bool SetupQueryFileLogW(void*, char*, char*, int, char*, dword, void*)")
# 呼び出し: SetupQueryFileLogW(FileLogHandle, LogSectionName, TargetFilename, DesiredInfo, DataOut, ReturnBufferSize, RequiredSize)
# FileLogHandle : void* -> "void*"
# LogSectionName : LPCWSTR optional -> "char*"
# TargetFilename : LPCWSTR -> "char*"
# DesiredInfo : SetupFileLogInfo -> "int"
# DataOut : LPWSTR optional, out -> "char*"
# ReturnBufferSize : DWORD -> "dword"
# RequiredSize : DWORD* optional, 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。
const std = @import("std");

extern "setupapi" fn SetupQueryFileLogW(
    FileLogHandle: ?*anyopaque, // void*
    LogSectionName: [*c]const u16, // LPCWSTR optional
    TargetFilename: [*c]const u16, // LPCWSTR
    DesiredInfo: i32, // SetupFileLogInfo
    DataOut: [*c]u16, // LPWSTR optional, out
    ReturnBufferSize: u32, // DWORD
    RequiredSize: [*c]u32 // DWORD* optional, out
) callconv(std.os.windows.WINAPI) i32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。
proc SetupQueryFileLogW(
    FileLogHandle: pointer,  # void*
    LogSectionName: WideCString,  # LPCWSTR optional
    TargetFilename: WideCString,  # LPCWSTR
    DesiredInfo: int32,  # SetupFileLogInfo
    DataOut: ptr uint16,  # LPWSTR optional, out
    ReturnBufferSize: uint32,  # DWORD
    RequiredSize: ptr uint32  # DWORD* optional, out
): int32 {.importc: "SetupQueryFileLogW", stdcall, dynlib: "SETUPAPI.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。
pragma(lib, "setupapi");
extern(Windows)
int SetupQueryFileLogW(
    void* FileLogHandle,   // void*
    const(wchar)* LogSectionName,   // LPCWSTR optional
    const(wchar)* TargetFilename,   // LPCWSTR
    int DesiredInfo,   // SetupFileLogInfo
    wchar* DataOut,   // LPWSTR optional, out
    uint ReturnBufferSize,   // DWORD
    uint* RequiredSize   // DWORD* optional, out
);
ccall((:SetupQueryFileLogW, "SETUPAPI.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Cwstring, Cwstring, Int32, Ptr{UInt16}, UInt32, Ptr{UInt32}),
      FileLogHandle, LogSectionName, TargetFilename, DesiredInfo, DataOut, ReturnBufferSize, RequiredSize)
# FileLogHandle : void* -> Ptr{Cvoid}
# LogSectionName : LPCWSTR optional -> Cwstring
# TargetFilename : LPCWSTR -> Cwstring
# DesiredInfo : SetupFileLogInfo -> Int32
# DataOut : LPWSTR optional, out -> Ptr{UInt16}
# ReturnBufferSize : DWORD -> UInt32
# RequiredSize : DWORD* optional, out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。
local ffi = require("ffi")
ffi.cdef[[
int32_t SetupQueryFileLogW(
    void* FileLogHandle,
    const uint16_t* LogSectionName,
    const uint16_t* TargetFilename,
    int32_t DesiredInfo,
    uint16_t* DataOut,
    uint32_t ReturnBufferSize,
    uint32_t* RequiredSize);
]]
local setupapi = ffi.load("setupapi")
-- setupapi.SetupQueryFileLogW(FileLogHandle, LogSectionName, TargetFilename, DesiredInfo, DataOut, ReturnBufferSize, RequiredSize)
-- FileLogHandle : void*
-- LogSectionName : LPCWSTR optional
-- TargetFilename : LPCWSTR
-- DesiredInfo : SetupFileLogInfo
-- DataOut : LPWSTR optional, out
-- ReturnBufferSize : DWORD
-- RequiredSize : DWORD* optional, 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。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。
const koffi = require('koffi');
const lib = koffi.load('SETUPAPI.dll');
const SetupQueryFileLogW = lib.func('__stdcall', 'SetupQueryFileLogW', 'int32_t', ['void *', 'str16', 'str16', 'int32_t', 'uint16_t *', 'uint32_t', 'uint32_t *']);
// SetupQueryFileLogW(FileLogHandle, LogSectionName, TargetFilename, DesiredInfo, DataOut, ReturnBufferSize, RequiredSize)
// FileLogHandle : void* -> 'void *'
// LogSectionName : LPCWSTR optional -> 'str16'
// TargetFilename : LPCWSTR -> 'str16'
// DesiredInfo : SetupFileLogInfo -> 'int32_t'
// DataOut : LPWSTR optional, out -> 'uint16_t *'
// ReturnBufferSize : DWORD -> 'uint32_t'
// RequiredSize : DWORD* optional, out -> 'uint32_t *'
// 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("SETUPAPI.dll", {
  SetupQueryFileLogW: { parameters: ["pointer", "buffer", "buffer", "i32", "buffer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.SetupQueryFileLogW(FileLogHandle, LogSectionName, TargetFilename, DesiredInfo, DataOut, ReturnBufferSize, RequiredSize)
// FileLogHandle : void* -> "pointer"
// LogSectionName : LPCWSTR optional -> "buffer"
// TargetFilename : LPCWSTR -> "buffer"
// DesiredInfo : SetupFileLogInfo -> "i32"
// DataOut : LPWSTR optional, out -> "buffer"
// ReturnBufferSize : DWORD -> "u32"
// RequiredSize : DWORD* optional, out -> "pointer"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)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 SetupQueryFileLogW(
    void* FileLogHandle,
    const uint16_t* LogSectionName,
    const uint16_t* TargetFilename,
    int32_t DesiredInfo,
    uint16_t* DataOut,
    uint32_t ReturnBufferSize,
    uint32_t* RequiredSize);
C, "SETUPAPI.dll");
// $ffi->SetupQueryFileLogW(FileLogHandle, LogSectionName, TargetFilename, DesiredInfo, DataOut, ReturnBufferSize, RequiredSize);
// FileLogHandle : void*
// LogSectionName : LPCWSTR optional
// TargetFilename : LPCWSTR
// DesiredInfo : SetupFileLogInfo
// DataOut : LPWSTR optional, out
// ReturnBufferSize : DWORD
// RequiredSize : DWORD* optional, 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 Setupapi extends StdCallLibrary {
    Setupapi INSTANCE = Native.load("setupapi", Setupapi.class, W32APIOptions.UNICODE_OPTIONS);
    boolean SetupQueryFileLogW(
        Pointer FileLogHandle,   // void*
        WString LogSectionName,   // LPCWSTR optional
        WString TargetFilename,   // LPCWSTR
        int DesiredInfo,   // SetupFileLogInfo
        char[] DataOut,   // LPWSTR optional, out
        int ReturnBufferSize,   // DWORD
        IntByReference RequiredSize   // DWORD* optional, out
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。
@[Link("setupapi")]
lib LibSETUPAPI
  fun SetupQueryFileLogW = SetupQueryFileLogW(
    FileLogHandle : Void*,   # void*
    LogSectionName : UInt16*,   # LPCWSTR optional
    TargetFilename : UInt16*,   # LPCWSTR
    DesiredInfo : Int32,   # SetupFileLogInfo
    DataOut : UInt16*,   # LPWSTR optional, out
    ReturnBufferSize : UInt32,   # DWORD
    RequiredSize : UInt32*   # DWORD* optional, 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 SetupQueryFileLogWNative = Int32 Function(Pointer<Void>, Pointer<Utf16>, Pointer<Utf16>, Int32, Pointer<Utf16>, Uint32, Pointer<Uint32>);
typedef SetupQueryFileLogWDart = int Function(Pointer<Void>, Pointer<Utf16>, Pointer<Utf16>, int, Pointer<Utf16>, int, Pointer<Uint32>);
final SetupQueryFileLogW = DynamicLibrary.open('SETUPAPI.dll')
    .lookupFunction<SetupQueryFileLogWNative, SetupQueryFileLogWDart>('SetupQueryFileLogW');
// FileLogHandle : void* -> Pointer<Void>
// LogSectionName : LPCWSTR optional -> Pointer<Utf16>
// TargetFilename : LPCWSTR -> Pointer<Utf16>
// DesiredInfo : SetupFileLogInfo -> Int32
// DataOut : LPWSTR optional, out -> Pointer<Utf16>
// ReturnBufferSize : DWORD -> Uint32
// RequiredSize : DWORD* optional, out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function SetupQueryFileLogW(
  FileLogHandle: Pointer;   // void*
  LogSectionName: PWideChar;   // LPCWSTR optional
  TargetFilename: PWideChar;   // LPCWSTR
  DesiredInfo: Integer;   // SetupFileLogInfo
  DataOut: PWideChar;   // LPWSTR optional, out
  ReturnBufferSize: DWORD;   // DWORD
  RequiredSize: Pointer   // DWORD* optional, out
): BOOL; stdcall;
  external 'SETUPAPI.dll' name 'SetupQueryFileLogW';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "SetupQueryFileLogW"
  c_SetupQueryFileLogW :: Ptr () -> CWString -> CWString -> Int32 -> CWString -> Word32 -> Ptr Word32 -> IO CInt
-- FileLogHandle : void* -> Ptr ()
-- LogSectionName : LPCWSTR optional -> CWString
-- TargetFilename : LPCWSTR -> CWString
-- DesiredInfo : SetupFileLogInfo -> Int32
-- DataOut : LPWSTR optional, out -> CWString
-- ReturnBufferSize : DWORD -> Word32
-- RequiredSize : DWORD* optional, out -> Ptr Word32
-- 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 setupqueryfilelogw =
  foreign "SetupQueryFileLogW"
    ((ptr void) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> int32_t @-> (ptr uint16_t) @-> uint32_t @-> (ptr uint32_t) @-> returning int32_t)
(* FileLogHandle : void* -> (ptr void) *)
(* LogSectionName : LPCWSTR optional -> (ptr uint16_t) *)
(* TargetFilename : LPCWSTR -> (ptr uint16_t) *)
(* DesiredInfo : SetupFileLogInfo -> int32_t *)
(* DataOut : LPWSTR optional, out -> (ptr uint16_t) *)
(* ReturnBufferSize : DWORD -> uint32_t *)
(* RequiredSize : DWORD* optional, out -> (ptr uint32_t) *)
(* 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 setupapi (t "SETUPAPI.dll"))
(cffi:use-foreign-library setupapi)

(cffi:defcfun ("SetupQueryFileLogW" setup-query-file-log-w :convention :stdcall) :int32
  (file-log-handle :pointer)   ; void*
  (log-section-name (:string :encoding :utf-16le))   ; LPCWSTR optional
  (target-filename (:string :encoding :utf-16le))   ; LPCWSTR
  (desired-info :int32)   ; SetupFileLogInfo
  (data-out :pointer)   ; LPWSTR optional, out
  (return-buffer-size :uint32)   ; DWORD
  (required-size :pointer))   ; DWORD* optional, out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $SetupQueryFileLogW = Win32::API::More->new('SETUPAPI',
    'BOOL SetupQueryFileLogW(LPVOID FileLogHandle, LPCWSTR LogSectionName, LPCWSTR TargetFilename, int DesiredInfo, LPWSTR DataOut, DWORD ReturnBufferSize, LPVOID RequiredSize)');
# my $ret = $SetupQueryFileLogW->Call($FileLogHandle, $LogSectionName, $TargetFilename, $DesiredInfo, $DataOut, $ReturnBufferSize, $RequiredSize);
# FileLogHandle : void* -> LPVOID
# LogSectionName : LPCWSTR optional -> LPCWSTR
# TargetFilename : LPCWSTR -> LPCWSTR
# DesiredInfo : SetupFileLogInfo -> int
# DataOut : LPWSTR optional, out -> LPWSTR
# ReturnBufferSize : DWORD -> DWORD
# RequiredSize : DWORD* optional, out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。

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