SearchTreeForFileW

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

BOOL SearchTreeForFileW(
    LPCWSTR RootPath,
    LPCWSTR InputPathName,
    LPWSTR OutputPathBuffer
);

<DllImport("dbghelp.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SearchTreeForFileW(
    <MarshalAs(UnmanagedType.LPWStr)> RootPath As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> InputPathName As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> OutputPathBuffer As System.Text.StringBuilder   ' LPWSTR out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' RootPath : LPCWSTR
' InputPathName : LPCWSTR
' OutputPathBuffer : LPWSTR out
Declare PtrSafe Function SearchTreeForFileW Lib "dbghelp" ( _
    ByVal RootPath As LongPtr, _
    ByVal InputPathName As LongPtr, _
    ByVal OutputPathBuffer 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

SearchTreeForFileW = ctypes.windll.dbghelp.SearchTreeForFileW
SearchTreeForFileW.restype = wintypes.BOOL
SearchTreeForFileW.argtypes = [
    wintypes.LPCWSTR,  # RootPath : LPCWSTR
    wintypes.LPCWSTR,  # InputPathName : LPCWSTR
    wintypes.LPWSTR,  # OutputPathBuffer : LPWSTR out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dbghelp.dll')
SearchTreeForFileW = Fiddle::Function.new(
  lib['SearchTreeForFileW'],
  [
    Fiddle::TYPE_VOIDP,  # RootPath : LPCWSTR
    Fiddle::TYPE_VOIDP,  # InputPathName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # OutputPathBuffer : LPWSTR out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "dbghelp")]
extern "system" {
    fn SearchTreeForFileW(
        RootPath: *const u16,  // LPCWSTR
        InputPathName: *const u16,  // LPCWSTR
        OutputPathBuffer: *mut u16  // LPWSTR out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("dbghelp.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool SearchTreeForFileW([MarshalAs(UnmanagedType.LPWStr)] string RootPath, [MarshalAs(UnmanagedType.LPWStr)] string InputPathName, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder OutputPathBuffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dbghelp_SearchTreeForFileW' -Namespace Win32 -PassThru
# $api::SearchTreeForFileW(RootPath, InputPathName, OutputPathBuffer)

#uselib "dbghelp.dll"
#func global SearchTreeForFileW "SearchTreeForFileW" wptr, wptr, wptr
; SearchTreeForFileW RootPath, InputPathName, varptr(OutputPathBuffer)   ; 戻り値は stat
; RootPath : LPCWSTR -> "wptr"
; InputPathName : LPCWSTR -> "wptr"
; OutputPathBuffer : LPWSTR 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。

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

var (
	dbghelp = windows.NewLazySystemDLL("dbghelp.dll")
	procSearchTreeForFileW = dbghelp.NewProc("SearchTreeForFileW")
)

// RootPath (LPCWSTR), InputPathName (LPCWSTR), OutputPathBuffer (LPWSTR out)
r1, _, err := procSearchTreeForFileW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(RootPath))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(InputPathName))),
	uintptr(OutputPathBuffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SearchTreeForFileW(
  RootPath: PWideChar;   // LPCWSTR
  InputPathName: PWideChar;   // LPCWSTR
  OutputPathBuffer: PWideChar   // LPWSTR out
): BOOL; stdcall;
  external 'dbghelp.dll' name 'SearchTreeForFileW';

result := DllCall("dbghelp\SearchTreeForFileW"
    , "WStr", RootPath   ; LPCWSTR
    , "WStr", InputPathName   ; LPCWSTR
    , "Ptr", OutputPathBuffer   ; LPWSTR out
    , "Int")   ; return: BOOL

●SearchTreeForFileW(RootPath, InputPathName, OutputPathBuffer) = DLL("dbghelp.dll", "bool SearchTreeForFileW(char*, char*, char*)")
# 呼び出し: SearchTreeForFileW(RootPath, InputPathName, OutputPathBuffer)
# RootPath : LPCWSTR -> "char*"
# InputPathName : LPCWSTR -> "char*"
# OutputPathBuffer : LPWSTR out -> "char*"
# 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 "dbghelp" fn SearchTreeForFileW(
    RootPath: [*c]const u16, // LPCWSTR
    InputPathName: [*c]const u16, // LPCWSTR
    OutputPathBuffer: [*c]u16 // LPWSTR 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 SearchTreeForFileW(
    RootPath: WideCString,  # LPCWSTR
    InputPathName: WideCString,  # LPCWSTR
    OutputPathBuffer: ptr uint16  # LPWSTR out
): int32 {.importc: "SearchTreeForFileW", stdcall, dynlib: "dbghelp.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "dbghelp");
extern(Windows)
int SearchTreeForFileW(
    const(wchar)* RootPath,   // LPCWSTR
    const(wchar)* InputPathName,   // LPCWSTR
    wchar* OutputPathBuffer   // LPWSTR out
);

ccall((:SearchTreeForFileW, "dbghelp.dll"), stdcall, Int32,
      (Cwstring, Cwstring, Ptr{UInt16}),
      RootPath, InputPathName, OutputPathBuffer)
# RootPath : LPCWSTR -> Cwstring
# InputPathName : LPCWSTR -> Cwstring
# OutputPathBuffer : LPWSTR out -> Ptr{UInt16}
# 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 SearchTreeForFileW(
    const uint16_t* RootPath,
    const uint16_t* InputPathName,
    uint16_t* OutputPathBuffer);
]]
local dbghelp = ffi.load("dbghelp")
-- dbghelp.SearchTreeForFileW(RootPath, InputPathName, OutputPathBuffer)
-- RootPath : LPCWSTR
-- InputPathName : LPCWSTR
-- OutputPathBuffer : LPWSTR 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('dbghelp.dll');
const SearchTreeForFileW = lib.func('__stdcall', 'SearchTreeForFileW', 'int32_t', ['str16', 'str16', 'uint16_t *']);
// SearchTreeForFileW(RootPath, InputPathName, OutputPathBuffer)
// RootPath : LPCWSTR -> 'str16'
// InputPathName : LPCWSTR -> 'str16'
// OutputPathBuffer : LPWSTR out -> 'uint16_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("dbghelp.dll", {
  SearchTreeForFileW: { parameters: ["buffer", "buffer", "buffer"], result: "i32" },
});
// lib.symbols.SearchTreeForFileW(RootPath, InputPathName, OutputPathBuffer)
// RootPath : LPCWSTR -> "buffer"
// InputPathName : LPCWSTR -> "buffer"
// OutputPathBuffer : LPWSTR out -> "buffer"
// 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 SearchTreeForFileW(
    const uint16_t* RootPath,
    const uint16_t* InputPathName,
    uint16_t* OutputPathBuffer);
C, "dbghelp.dll");
// $ffi->SearchTreeForFileW(RootPath, InputPathName, OutputPathBuffer);
// RootPath : LPCWSTR
// InputPathName : LPCWSTR
// OutputPathBuffer : LPWSTR 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 Dbghelp extends StdCallLibrary {
    Dbghelp INSTANCE = Native.load("dbghelp", Dbghelp.class, W32APIOptions.UNICODE_OPTIONS);
    boolean SearchTreeForFileW(
        WString RootPath,   // LPCWSTR
        WString InputPathName,   // LPCWSTR
        char[] OutputPathBuffer   // LPWSTR out
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("dbghelp")]
lib Libdbghelp
  fun SearchTreeForFileW = SearchTreeForFileW(
    RootPath : UInt16*,   # LPCWSTR
    InputPathName : UInt16*,   # LPCWSTR
    OutputPathBuffer : UInt16*   # LPWSTR 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 SearchTreeForFileWNative = Int32 Function(Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>);
typedef SearchTreeForFileWDart = int Function(Pointer<Utf16>, Pointer<Utf16>, Pointer<Utf16>);
final SearchTreeForFileW = DynamicLibrary.open('dbghelp.dll')
    .lookupFunction<SearchTreeForFileWNative, SearchTreeForFileWDart>('SearchTreeForFileW');
// RootPath : LPCWSTR -> Pointer<Utf16>
// InputPathName : LPCWSTR -> Pointer<Utf16>
// OutputPathBuffer : LPWSTR out -> Pointer<Utf16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SearchTreeForFileW(
  RootPath: PWideChar;   // LPCWSTR
  InputPathName: PWideChar;   // LPCWSTR
  OutputPathBuffer: PWideChar   // LPWSTR out
): BOOL; stdcall;
  external 'dbghelp.dll' name 'SearchTreeForFileW';

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

foreign import stdcall safe "SearchTreeForFileW"
  c_SearchTreeForFileW :: CWString -> CWString -> CWString -> IO CInt
-- RootPath : LPCWSTR -> CWString
-- InputPathName : LPCWSTR -> CWString
-- OutputPathBuffer : LPWSTR out -> CWString
-- 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 searchtreeforfilew =
  foreign "SearchTreeForFileW"
    ((ptr uint16_t) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> returning int32_t)
(* RootPath : LPCWSTR -> (ptr uint16_t) *)
(* InputPathName : LPCWSTR -> (ptr uint16_t) *)
(* OutputPathBuffer : LPWSTR out -> (ptr uint16_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 dbghelp (t "dbghelp.dll"))
(cffi:use-foreign-library dbghelp)

(cffi:defcfun ("SearchTreeForFileW" search-tree-for-file-w :convention :stdcall) :int32
  (root-path (:string :encoding :utf-16le))   ; LPCWSTR
  (input-path-name (:string :encoding :utf-16le))   ; LPCWSTR
  (output-path-buffer :pointer))   ; LPWSTR out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SearchTreeForFileW = Win32::API::More->new('dbghelp',
    'BOOL SearchTreeForFileW(LPCWSTR RootPath, LPCWSTR InputPathName, LPWSTR OutputPathBuffer)');
# my $ret = $SearchTreeForFileW->Call($RootPath, $InputPathName, $OutputPathBuffer);
# RootPath : LPCWSTR -> LPCWSTR
# InputPathName : LPCWSTR -> LPCWSTR
# OutputPathBuffer : LPWSTR out -> LPWSTR
# 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。