SHGetInstanceExplorer

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

HRESULT SHGetInstanceExplorer(
    IUnknown** ppunk
);

<DllImport("SHELL32.dll", ExactSpelling:=True)>
Public Shared Function SHGetInstanceExplorer(
    ppunk As IntPtr   ' IUnknown** out
) As Integer
End Function

' ppunk : IUnknown** out
Declare PtrSafe Function SHGetInstanceExplorer Lib "shell32" ( _
    ByVal ppunk 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

SHGetInstanceExplorer = ctypes.windll.shell32.SHGetInstanceExplorer
SHGetInstanceExplorer.restype = ctypes.c_int
SHGetInstanceExplorer.argtypes = [
    ctypes.c_void_p,  # ppunk : IUnknown** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
SHGetInstanceExplorer = Fiddle::Function.new(
  lib['SHGetInstanceExplorer'],
  [
    Fiddle::TYPE_VOIDP,  # ppunk : IUnknown** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "shell32")]
extern "system" {
    fn SHGetInstanceExplorer(
        ppunk: *mut *mut core::ffi::c_void  // IUnknown** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHELL32.dll")]
public static extern int SHGetInstanceExplorer(IntPtr ppunk);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_SHGetInstanceExplorer' -Namespace Win32 -PassThru
# $api::SHGetInstanceExplorer(ppunk)

#uselib "SHELL32.dll"
#func global SHGetInstanceExplorer "SHGetInstanceExplorer" sptr
; SHGetInstanceExplorer ppunk   ; 戻り値は stat
; ppunk : IUnknown** 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 "SHELL32.dll"
#cfunc global SHGetInstanceExplorer "SHGetInstanceExplorer" sptr
; res = SHGetInstanceExplorer(ppunk)
; ppunk : IUnknown** out -> "sptr"

; HRESULT SHGetInstanceExplorer(IUnknown** ppunk)
#uselib "SHELL32.dll"
#cfunc global SHGetInstanceExplorer "SHGetInstanceExplorer" intptr
; res = SHGetInstanceExplorer(ppunk)
; ppunk : IUnknown** out -> "intptr"

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

var (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procSHGetInstanceExplorer = shell32.NewProc("SHGetInstanceExplorer")
)

// ppunk (IUnknown** out)
r1, _, err := procSHGetInstanceExplorer.Call(
	uintptr(ppunk),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SHGetInstanceExplorer(
  ppunk: Pointer   // IUnknown** out
): Integer; stdcall;
  external 'SHELL32.dll' name 'SHGetInstanceExplorer';

result := DllCall("SHELL32\SHGetInstanceExplorer"
    , "Ptr", ppunk   ; IUnknown** out
    , "Int")   ; return: HRESULT

●SHGetInstanceExplorer(ppunk) = DLL("SHELL32.dll", "int SHGetInstanceExplorer(void*)")
# 呼び出し: SHGetInstanceExplorer(ppunk)
# ppunk : IUnknown** 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 "shell32" fn SHGetInstanceExplorer(
    ppunk: ?*anyopaque // IUnknown** out
) callconv(std.os.windows.WINAPI) i32;

proc SHGetInstanceExplorer(
    ppunk: pointer  # IUnknown** out
): int32 {.importc: "SHGetInstanceExplorer", stdcall, dynlib: "SHELL32.dll".}

pragma(lib, "shell32");
extern(Windows)
int SHGetInstanceExplorer(
    void* ppunk   // IUnknown** out
);

ccall((:SHGetInstanceExplorer, "SHELL32.dll"), stdcall, Int32,
      (Ptr{Cvoid},),
      ppunk)
# ppunk : IUnknown** 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 SHGetInstanceExplorer(
    void* ppunk);
]]
local shell32 = ffi.load("shell32")
-- shell32.SHGetInstanceExplorer(ppunk)
-- ppunk : IUnknown** 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('SHELL32.dll');
const SHGetInstanceExplorer = lib.func('__stdcall', 'SHGetInstanceExplorer', 'int32_t', ['void *']);
// SHGetInstanceExplorer(ppunk)
// ppunk : IUnknown** 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("SHELL32.dll", {
  SHGetInstanceExplorer: { parameters: ["pointer"], result: "i32" },
});
// lib.symbols.SHGetInstanceExplorer(ppunk)
// ppunk : IUnknown** 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 SHGetInstanceExplorer(
    void* ppunk);
C, "SHELL32.dll");
// $ffi->SHGetInstanceExplorer(ppunk);
// ppunk : IUnknown** 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 Shell32 extends StdCallLibrary {
    Shell32 INSTANCE = Native.load("shell32", Shell32.class);
    int SHGetInstanceExplorer(
        Pointer ppunk   // IUnknown** out
    );
}

@[Link("shell32")]
lib LibSHELL32
  fun SHGetInstanceExplorer = SHGetInstanceExplorer(
    ppunk : Void*   # IUnknown** 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 SHGetInstanceExplorerNative = Int32 Function(Pointer<Void>);
typedef SHGetInstanceExplorerDart = int Function(Pointer<Void>);
final SHGetInstanceExplorer = DynamicLibrary.open('SHELL32.dll')
    .lookupFunction<SHGetInstanceExplorerNative, SHGetInstanceExplorerDart>('SHGetInstanceExplorer');
// ppunk : IUnknown** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SHGetInstanceExplorer(
  ppunk: Pointer   // IUnknown** out
): Integer; stdcall;
  external 'SHELL32.dll' name 'SHGetInstanceExplorer';

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

foreign import stdcall safe "SHGetInstanceExplorer"
  c_SHGetInstanceExplorer :: Ptr () -> IO Int32
-- ppunk : IUnknown** 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 shgetinstanceexplorer =
  foreign "SHGetInstanceExplorer"
    ((ptr void) @-> returning int32_t)
(* ppunk : IUnknown** 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 shell32 (t "SHELL32.dll"))
(cffi:use-foreign-library shell32)

(cffi:defcfun ("SHGetInstanceExplorer" shget-instance-explorer :convention :stdcall) :int32
  (ppunk :pointer))   ; IUnknown** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SHGetInstanceExplorer = Win32::API::More->new('SHELL32',
    'int SHGetInstanceExplorer(LPVOID ppunk)');
# my $ret = $SHGetInstanceExplorer->Call($ppunk);
# ppunk : IUnknown** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。