SHAssocEnumHandlers

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

HRESULT SHAssocEnumHandlers(
    LPCWSTR pszExtra,
    ASSOC_FILTER afFilter,
    IEnumAssocHandlers** ppEnumHandler
);

<DllImport("SHELL32.dll", ExactSpelling:=True)>
Public Shared Function SHAssocEnumHandlers(
    <MarshalAs(UnmanagedType.LPWStr)> pszExtra As String,   ' LPCWSTR
    afFilter As Integer,   ' ASSOC_FILTER
    ppEnumHandler As IntPtr   ' IEnumAssocHandlers** out
) As Integer
End Function

' pszExtra : LPCWSTR
' afFilter : ASSOC_FILTER
' ppEnumHandler : IEnumAssocHandlers** out
Declare PtrSafe Function SHAssocEnumHandlers Lib "shell32" ( _
    ByVal pszExtra As LongPtr, _
    ByVal afFilter As Long, _
    ByVal ppEnumHandler 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

SHAssocEnumHandlers = ctypes.windll.shell32.SHAssocEnumHandlers
SHAssocEnumHandlers.restype = ctypes.c_int
SHAssocEnumHandlers.argtypes = [
    wintypes.LPCWSTR,  # pszExtra : LPCWSTR
    ctypes.c_int,  # afFilter : ASSOC_FILTER
    ctypes.c_void_p,  # ppEnumHandler : IEnumAssocHandlers** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
SHAssocEnumHandlers = Fiddle::Function.new(
  lib['SHAssocEnumHandlers'],
  [
    Fiddle::TYPE_VOIDP,  # pszExtra : LPCWSTR
    Fiddle::TYPE_INT,  # afFilter : ASSOC_FILTER
    Fiddle::TYPE_VOIDP,  # ppEnumHandler : IEnumAssocHandlers** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "shell32")]
extern "system" {
    fn SHAssocEnumHandlers(
        pszExtra: *const u16,  // LPCWSTR
        afFilter: i32,  // ASSOC_FILTER
        ppEnumHandler: *mut *mut core::ffi::c_void  // IEnumAssocHandlers** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHELL32.dll")]
public static extern int SHAssocEnumHandlers([MarshalAs(UnmanagedType.LPWStr)] string pszExtra, int afFilter, IntPtr ppEnumHandler);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_SHAssocEnumHandlers' -Namespace Win32 -PassThru
# $api::SHAssocEnumHandlers(pszExtra, afFilter, ppEnumHandler)

#uselib "SHELL32.dll"
#func global SHAssocEnumHandlers "SHAssocEnumHandlers" sptr, sptr, sptr
; SHAssocEnumHandlers pszExtra, afFilter, ppEnumHandler   ; 戻り値は stat
; pszExtra : LPCWSTR -> "sptr"
; afFilter : ASSOC_FILTER -> "sptr"
; ppEnumHandler : IEnumAssocHandlers** 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 SHAssocEnumHandlers "SHAssocEnumHandlers" wstr, int, sptr
; res = SHAssocEnumHandlers(pszExtra, afFilter, ppEnumHandler)
; pszExtra : LPCWSTR -> "wstr"
; afFilter : ASSOC_FILTER -> "int"
; ppEnumHandler : IEnumAssocHandlers** out -> "sptr"

; HRESULT SHAssocEnumHandlers(LPCWSTR pszExtra, ASSOC_FILTER afFilter, IEnumAssocHandlers** ppEnumHandler)
#uselib "SHELL32.dll"
#cfunc global SHAssocEnumHandlers "SHAssocEnumHandlers" wstr, int, intptr
; res = SHAssocEnumHandlers(pszExtra, afFilter, ppEnumHandler)
; pszExtra : LPCWSTR -> "wstr"
; afFilter : ASSOC_FILTER -> "int"
; ppEnumHandler : IEnumAssocHandlers** out -> "intptr"

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

var (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procSHAssocEnumHandlers = shell32.NewProc("SHAssocEnumHandlers")
)

// pszExtra (LPCWSTR), afFilter (ASSOC_FILTER), ppEnumHandler (IEnumAssocHandlers** out)
r1, _, err := procSHAssocEnumHandlers.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszExtra))),
	uintptr(afFilter),
	uintptr(ppEnumHandler),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SHAssocEnumHandlers(
  pszExtra: PWideChar;   // LPCWSTR
  afFilter: Integer;   // ASSOC_FILTER
  ppEnumHandler: Pointer   // IEnumAssocHandlers** out
): Integer; stdcall;
  external 'SHELL32.dll' name 'SHAssocEnumHandlers';

result := DllCall("SHELL32\SHAssocEnumHandlers"
    , "WStr", pszExtra   ; LPCWSTR
    , "Int", afFilter   ; ASSOC_FILTER
    , "Ptr", ppEnumHandler   ; IEnumAssocHandlers** out
    , "Int")   ; return: HRESULT

●SHAssocEnumHandlers(pszExtra, afFilter, ppEnumHandler) = DLL("SHELL32.dll", "int SHAssocEnumHandlers(char*, int, void*)")
# 呼び出し: SHAssocEnumHandlers(pszExtra, afFilter, ppEnumHandler)
# pszExtra : LPCWSTR -> "char*"
# afFilter : ASSOC_FILTER -> "int"
# ppEnumHandler : IEnumAssocHandlers** 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 SHAssocEnumHandlers(
    pszExtra: [*c]const u16, // LPCWSTR
    afFilter: i32, // ASSOC_FILTER
    ppEnumHandler: ?*anyopaque // IEnumAssocHandlers** out
) callconv(std.os.windows.WINAPI) i32;

proc SHAssocEnumHandlers(
    pszExtra: WideCString,  # LPCWSTR
    afFilter: int32,  # ASSOC_FILTER
    ppEnumHandler: pointer  # IEnumAssocHandlers** out
): int32 {.importc: "SHAssocEnumHandlers", stdcall, dynlib: "SHELL32.dll".}

pragma(lib, "shell32");
extern(Windows)
int SHAssocEnumHandlers(
    const(wchar)* pszExtra,   // LPCWSTR
    int afFilter,   // ASSOC_FILTER
    void* ppEnumHandler   // IEnumAssocHandlers** out
);

ccall((:SHAssocEnumHandlers, "SHELL32.dll"), stdcall, Int32,
      (Cwstring, Int32, Ptr{Cvoid}),
      pszExtra, afFilter, ppEnumHandler)
# pszExtra : LPCWSTR -> Cwstring
# afFilter : ASSOC_FILTER -> Int32
# ppEnumHandler : IEnumAssocHandlers** 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 SHAssocEnumHandlers(
    const uint16_t* pszExtra,
    int32_t afFilter,
    void* ppEnumHandler);
]]
local shell32 = ffi.load("shell32")
-- shell32.SHAssocEnumHandlers(pszExtra, afFilter, ppEnumHandler)
-- pszExtra : LPCWSTR
-- afFilter : ASSOC_FILTER
-- ppEnumHandler : IEnumAssocHandlers** 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 SHAssocEnumHandlers = lib.func('__stdcall', 'SHAssocEnumHandlers', 'int32_t', ['str16', 'int32_t', 'void *']);
// SHAssocEnumHandlers(pszExtra, afFilter, ppEnumHandler)
// pszExtra : LPCWSTR -> 'str16'
// afFilter : ASSOC_FILTER -> 'int32_t'
// ppEnumHandler : IEnumAssocHandlers** 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", {
  SHAssocEnumHandlers: { parameters: ["buffer", "i32", "pointer"], result: "i32" },
});
// lib.symbols.SHAssocEnumHandlers(pszExtra, afFilter, ppEnumHandler)
// pszExtra : LPCWSTR -> "buffer"
// afFilter : ASSOC_FILTER -> "i32"
// ppEnumHandler : IEnumAssocHandlers** 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 SHAssocEnumHandlers(
    const uint16_t* pszExtra,
    int32_t afFilter,
    void* ppEnumHandler);
C, "SHELL32.dll");
// $ffi->SHAssocEnumHandlers(pszExtra, afFilter, ppEnumHandler);
// pszExtra : LPCWSTR
// afFilter : ASSOC_FILTER
// ppEnumHandler : IEnumAssocHandlers** 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 SHAssocEnumHandlers(
        WString pszExtra,   // LPCWSTR
        int afFilter,   // ASSOC_FILTER
        Pointer ppEnumHandler   // IEnumAssocHandlers** out
    );
}

@[Link("shell32")]
lib LibSHELL32
  fun SHAssocEnumHandlers = SHAssocEnumHandlers(
    pszExtra : UInt16*,   # LPCWSTR
    afFilter : Int32,   # ASSOC_FILTER
    ppEnumHandler : Void*   # IEnumAssocHandlers** 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 SHAssocEnumHandlersNative = Int32 Function(Pointer<Utf16>, Int32, Pointer<Void>);
typedef SHAssocEnumHandlersDart = int Function(Pointer<Utf16>, int, Pointer<Void>);
final SHAssocEnumHandlers = DynamicLibrary.open('SHELL32.dll')
    .lookupFunction<SHAssocEnumHandlersNative, SHAssocEnumHandlersDart>('SHAssocEnumHandlers');
// pszExtra : LPCWSTR -> Pointer<Utf16>
// afFilter : ASSOC_FILTER -> Int32
// ppEnumHandler : IEnumAssocHandlers** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SHAssocEnumHandlers(
  pszExtra: PWideChar;   // LPCWSTR
  afFilter: Integer;   // ASSOC_FILTER
  ppEnumHandler: Pointer   // IEnumAssocHandlers** out
): Integer; stdcall;
  external 'SHELL32.dll' name 'SHAssocEnumHandlers';

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

foreign import stdcall safe "SHAssocEnumHandlers"
  c_SHAssocEnumHandlers :: CWString -> Int32 -> Ptr () -> IO Int32
-- pszExtra : LPCWSTR -> CWString
-- afFilter : ASSOC_FILTER -> Int32
-- ppEnumHandler : IEnumAssocHandlers** 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 shassocenumhandlers =
  foreign "SHAssocEnumHandlers"
    ((ptr uint16_t) @-> int32_t @-> (ptr void) @-> returning int32_t)
(* pszExtra : LPCWSTR -> (ptr uint16_t) *)
(* afFilter : ASSOC_FILTER -> int32_t *)
(* ppEnumHandler : IEnumAssocHandlers** 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 ("SHAssocEnumHandlers" shassoc-enum-handlers :convention :stdcall) :int32
  (psz-extra (:string :encoding :utf-16le))   ; LPCWSTR
  (af-filter :int32)   ; ASSOC_FILTER
  (pp-enum-handler :pointer))   ; IEnumAssocHandlers** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

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