SHGetPathFromIDListEx

// SHELL32.dll
#include <windows.h>

BOOL SHGetPathFromIDListEx(
    ITEMIDLIST* pidl,
    LPWSTR pszPath,
    DWORD cchPath,
    GPFIDL_FLAGS uOpts
);

<DllImport("SHELL32.dll", ExactSpelling:=True)>
Public Shared Function SHGetPathFromIDListEx(
    pidl As IntPtr,   ' ITEMIDLIST*
    <MarshalAs(UnmanagedType.LPWStr)> pszPath As System.Text.StringBuilder,   ' LPWSTR out
    cchPath As UInteger,   ' DWORD
    uOpts As UInteger   ' GPFIDL_FLAGS
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' pidl : ITEMIDLIST*
' pszPath : LPWSTR out
' cchPath : DWORD
' uOpts : GPFIDL_FLAGS
Declare PtrSafe Function SHGetPathFromIDListEx Lib "shell32" ( _
    ByVal pidl As LongPtr, _
    ByVal pszPath As LongPtr, _
    ByVal cchPath As Long, _
    ByVal uOpts As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SHGetPathFromIDListEx = ctypes.windll.shell32.SHGetPathFromIDListEx
SHGetPathFromIDListEx.restype = wintypes.BOOL
SHGetPathFromIDListEx.argtypes = [
    ctypes.c_void_p,  # pidl : ITEMIDLIST*
    wintypes.LPWSTR,  # pszPath : LPWSTR out
    wintypes.DWORD,  # cchPath : DWORD
    wintypes.DWORD,  # uOpts : GPFIDL_FLAGS
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
SHGetPathFromIDListEx = Fiddle::Function.new(
  lib['SHGetPathFromIDListEx'],
  [
    Fiddle::TYPE_VOIDP,  # pidl : ITEMIDLIST*
    Fiddle::TYPE_VOIDP,  # pszPath : LPWSTR out
    -Fiddle::TYPE_INT,  # cchPath : DWORD
    -Fiddle::TYPE_INT,  # uOpts : GPFIDL_FLAGS
  ],
  Fiddle::TYPE_INT)

#[link(name = "shell32")]
extern "system" {
    fn SHGetPathFromIDListEx(
        pidl: *mut ITEMIDLIST,  // ITEMIDLIST*
        pszPath: *mut u16,  // LPWSTR out
        cchPath: u32,  // DWORD
        uOpts: u32  // GPFIDL_FLAGS
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("SHELL32.dll")]
public static extern bool SHGetPathFromIDListEx(IntPtr pidl, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pszPath, uint cchPath, uint uOpts);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_SHGetPathFromIDListEx' -Namespace Win32 -PassThru
# $api::SHGetPathFromIDListEx(pidl, pszPath, cchPath, uOpts)

#uselib "SHELL32.dll"
#func global SHGetPathFromIDListEx "SHGetPathFromIDListEx" sptr, sptr, sptr, sptr
; SHGetPathFromIDListEx varptr(pidl), varptr(pszPath), cchPath, uOpts   ; 戻り値は stat
; pidl : ITEMIDLIST* -> "sptr"
; pszPath : LPWSTR out -> "sptr"
; cchPath : DWORD -> "sptr"
; uOpts : GPFIDL_FLAGS -> "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 (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procSHGetPathFromIDListEx = shell32.NewProc("SHGetPathFromIDListEx")
)

// pidl (ITEMIDLIST*), pszPath (LPWSTR out), cchPath (DWORD), uOpts (GPFIDL_FLAGS)
r1, _, err := procSHGetPathFromIDListEx.Call(
	uintptr(pidl),
	uintptr(pszPath),
	uintptr(cchPath),
	uintptr(uOpts),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SHGetPathFromIDListEx(
  pidl: Pointer;   // ITEMIDLIST*
  pszPath: PWideChar;   // LPWSTR out
  cchPath: DWORD;   // DWORD
  uOpts: DWORD   // GPFIDL_FLAGS
): BOOL; stdcall;
  external 'SHELL32.dll' name 'SHGetPathFromIDListEx';

result := DllCall("SHELL32\SHGetPathFromIDListEx"
    , "Ptr", pidl   ; ITEMIDLIST*
    , "Ptr", pszPath   ; LPWSTR out
    , "UInt", cchPath   ; DWORD
    , "UInt", uOpts   ; GPFIDL_FLAGS
    , "Int")   ; return: BOOL

●SHGetPathFromIDListEx(pidl, pszPath, cchPath, uOpts) = DLL("SHELL32.dll", "bool SHGetPathFromIDListEx(void*, char*, dword, dword)")
# 呼び出し: SHGetPathFromIDListEx(pidl, pszPath, cchPath, uOpts)
# pidl : ITEMIDLIST* -> "void*"
# pszPath : LPWSTR out -> "char*"
# cchPath : DWORD -> "dword"
# uOpts : GPFIDL_FLAGS -> "dword"
# 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 "shell32" fn SHGetPathFromIDListEx(
    pidl: [*c]ITEMIDLIST, // ITEMIDLIST*
    pszPath: [*c]u16, // LPWSTR out
    cchPath: u32, // DWORD
    uOpts: u32 // GPFIDL_FLAGS
) callconv(std.os.windows.WINAPI) i32;

proc SHGetPathFromIDListEx(
    pidl: ptr ITEMIDLIST,  # ITEMIDLIST*
    pszPath: ptr uint16,  # LPWSTR out
    cchPath: uint32,  # DWORD
    uOpts: uint32  # GPFIDL_FLAGS
): int32 {.importc: "SHGetPathFromIDListEx", stdcall, dynlib: "SHELL32.dll".}

pragma(lib, "shell32");
extern(Windows)
int SHGetPathFromIDListEx(
    ITEMIDLIST* pidl,   // ITEMIDLIST*
    wchar* pszPath,   // LPWSTR out
    uint cchPath,   // DWORD
    uint uOpts   // GPFIDL_FLAGS
);

ccall((:SHGetPathFromIDListEx, "SHELL32.dll"), stdcall, Int32,
      (Ptr{ITEMIDLIST}, Ptr{UInt16}, UInt32, UInt32),
      pidl, pszPath, cchPath, uOpts)
# pidl : ITEMIDLIST* -> Ptr{ITEMIDLIST}
# pszPath : LPWSTR out -> Ptr{UInt16}
# cchPath : DWORD -> UInt32
# uOpts : GPFIDL_FLAGS -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t SHGetPathFromIDListEx(
    void* pidl,
    uint16_t* pszPath,
    uint32_t cchPath,
    uint32_t uOpts);
]]
local shell32 = ffi.load("shell32")
-- shell32.SHGetPathFromIDListEx(pidl, pszPath, cchPath, uOpts)
-- pidl : ITEMIDLIST*
-- pszPath : LPWSTR out
-- cchPath : DWORD
-- uOpts : GPFIDL_FLAGS
-- 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('SHELL32.dll');
const SHGetPathFromIDListEx = lib.func('__stdcall', 'SHGetPathFromIDListEx', 'int32_t', ['void *', 'uint16_t *', 'uint32_t', 'uint32_t']);
// SHGetPathFromIDListEx(pidl, pszPath, cchPath, uOpts)
// pidl : ITEMIDLIST* -> 'void *'
// pszPath : LPWSTR out -> 'uint16_t *'
// cchPath : DWORD -> 'uint32_t'
// uOpts : GPFIDL_FLAGS -> '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("SHELL32.dll", {
  SHGetPathFromIDListEx: { parameters: ["pointer", "buffer", "u32", "u32"], result: "i32" },
});
// lib.symbols.SHGetPathFromIDListEx(pidl, pszPath, cchPath, uOpts)
// pidl : ITEMIDLIST* -> "pointer"
// pszPath : LPWSTR out -> "buffer"
// cchPath : DWORD -> "u32"
// uOpts : GPFIDL_FLAGS -> "u32"
// 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 SHGetPathFromIDListEx(
    void* pidl,
    uint16_t* pszPath,
    uint32_t cchPath,
    uint32_t uOpts);
C, "SHELL32.dll");
// $ffi->SHGetPathFromIDListEx(pidl, pszPath, cchPath, uOpts);
// pidl : ITEMIDLIST*
// pszPath : LPWSTR out
// cchPath : DWORD
// uOpts : GPFIDL_FLAGS
// 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 Shell32 extends StdCallLibrary {
    Shell32 INSTANCE = Native.load("shell32", Shell32.class);
    boolean SHGetPathFromIDListEx(
        Pointer pidl,   // ITEMIDLIST*
        char[] pszPath,   // LPWSTR out
        int cchPath,   // DWORD
        int uOpts   // GPFIDL_FLAGS
    );
}

@[Link("shell32")]
lib LibSHELL32
  fun SHGetPathFromIDListEx = SHGetPathFromIDListEx(
    pidl : ITEMIDLIST*,   # ITEMIDLIST*
    pszPath : UInt16*,   # LPWSTR out
    cchPath : UInt32,   # DWORD
    uOpts : UInt32   # GPFIDL_FLAGS
  ) : 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 SHGetPathFromIDListExNative = Int32 Function(Pointer<Void>, Pointer<Utf16>, Uint32, Uint32);
typedef SHGetPathFromIDListExDart = int Function(Pointer<Void>, Pointer<Utf16>, int, int);
final SHGetPathFromIDListEx = DynamicLibrary.open('SHELL32.dll')
    .lookupFunction<SHGetPathFromIDListExNative, SHGetPathFromIDListExDart>('SHGetPathFromIDListEx');
// pidl : ITEMIDLIST* -> Pointer<Void>
// pszPath : LPWSTR out -> Pointer<Utf16>
// cchPath : DWORD -> Uint32
// uOpts : GPFIDL_FLAGS -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SHGetPathFromIDListEx(
  pidl: Pointer;   // ITEMIDLIST*
  pszPath: PWideChar;   // LPWSTR out
  cchPath: DWORD;   // DWORD
  uOpts: DWORD   // GPFIDL_FLAGS
): BOOL; stdcall;
  external 'SHELL32.dll' name 'SHGetPathFromIDListEx';

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

foreign import stdcall safe "SHGetPathFromIDListEx"
  c_SHGetPathFromIDListEx :: Ptr () -> CWString -> Word32 -> Word32 -> IO CInt
-- pidl : ITEMIDLIST* -> Ptr ()
-- pszPath : LPWSTR out -> CWString
-- cchPath : DWORD -> Word32
-- uOpts : GPFIDL_FLAGS -> 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 shgetpathfromidlistex =
  foreign "SHGetPathFromIDListEx"
    ((ptr void) @-> (ptr uint16_t) @-> uint32_t @-> uint32_t @-> returning int32_t)
(* pidl : ITEMIDLIST* -> (ptr void) *)
(* pszPath : LPWSTR out -> (ptr uint16_t) *)
(* cchPath : DWORD -> uint32_t *)
(* uOpts : GPFIDL_FLAGS -> 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 shell32 (t "SHELL32.dll"))
(cffi:use-foreign-library shell32)

(cffi:defcfun ("SHGetPathFromIDListEx" shget-path-from-idlist-ex :convention :stdcall) :int32
  (pidl :pointer)   ; ITEMIDLIST*
  (psz-path :pointer)   ; LPWSTR out
  (cch-path :uint32)   ; DWORD
  (u-opts :uint32))   ; GPFIDL_FLAGS
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SHGetPathFromIDListEx = Win32::API::More->new('SHELL32',
    'BOOL SHGetPathFromIDListEx(LPVOID pidl, LPWSTR pszPath, DWORD cchPath, DWORD uOpts)');
# my $ret = $SHGetPathFromIDListEx->Call($pidl, $pszPath, $cchPath, $uOpts);
# pidl : ITEMIDLIST* -> LPVOID
# pszPath : LPWSTR out -> LPWSTR
# cchPath : DWORD -> DWORD
# uOpts : GPFIDL_FLAGS -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。