LoadIconWithScaleDown

// COMCTL32.dll
#include <windows.h>

HRESULT LoadIconWithScaleDown(
    HINSTANCE hinst,   // optional
    LPCWSTR pszName,
    INT cx,
    INT cy,
    HICON* phico
);

<DllImport("COMCTL32.dll", ExactSpelling:=True)>
Public Shared Function LoadIconWithScaleDown(
    hinst As IntPtr,   ' HINSTANCE optional
    <MarshalAs(UnmanagedType.LPWStr)> pszName As String,   ' LPCWSTR
    cx As Integer,   ' INT
    cy As Integer,   ' INT
    phico As IntPtr   ' HICON* out
) As Integer
End Function

' hinst : HINSTANCE optional
' pszName : LPCWSTR
' cx : INT
' cy : INT
' phico : HICON* out
Declare PtrSafe Function LoadIconWithScaleDown Lib "comctl32" ( _
    ByVal hinst As LongPtr, _
    ByVal pszName As LongPtr, _
    ByVal cx As Long, _
    ByVal cy As Long, _
    ByVal phico 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

LoadIconWithScaleDown = ctypes.windll.comctl32.LoadIconWithScaleDown
LoadIconWithScaleDown.restype = ctypes.c_int
LoadIconWithScaleDown.argtypes = [
    wintypes.HANDLE,  # hinst : HINSTANCE optional
    wintypes.LPCWSTR,  # pszName : LPCWSTR
    ctypes.c_int,  # cx : INT
    ctypes.c_int,  # cy : INT
    ctypes.c_void_p,  # phico : HICON* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('COMCTL32.dll')
LoadIconWithScaleDown = Fiddle::Function.new(
  lib['LoadIconWithScaleDown'],
  [
    Fiddle::TYPE_VOIDP,  # hinst : HINSTANCE optional
    Fiddle::TYPE_VOIDP,  # pszName : LPCWSTR
    Fiddle::TYPE_INT,  # cx : INT
    Fiddle::TYPE_INT,  # cy : INT
    Fiddle::TYPE_VOIDP,  # phico : HICON* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "comctl32")]
extern "system" {
    fn LoadIconWithScaleDown(
        hinst: *mut core::ffi::c_void,  // HINSTANCE optional
        pszName: *const u16,  // LPCWSTR
        cx: i32,  // INT
        cy: i32,  // INT
        phico: *mut *mut core::ffi::c_void  // HICON* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("COMCTL32.dll")]
public static extern int LoadIconWithScaleDown(IntPtr hinst, [MarshalAs(UnmanagedType.LPWStr)] string pszName, int cx, int cy, IntPtr phico);
"@
$api = Add-Type -MemberDefinition $sig -Name 'COMCTL32_LoadIconWithScaleDown' -Namespace Win32 -PassThru
# $api::LoadIconWithScaleDown(hinst, pszName, cx, cy, phico)

#uselib "COMCTL32.dll"
#func global LoadIconWithScaleDown "LoadIconWithScaleDown" sptr, sptr, sptr, sptr, sptr
; LoadIconWithScaleDown hinst, pszName, cx, cy, phico   ; 戻り値は stat
; hinst : HINSTANCE optional -> "sptr"
; pszName : LPCWSTR -> "sptr"
; cx : INT -> "sptr"
; cy : INT -> "sptr"
; phico : HICON* 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 "COMCTL32.dll"
#cfunc global LoadIconWithScaleDown "LoadIconWithScaleDown" sptr, wstr, int, int, sptr
; res = LoadIconWithScaleDown(hinst, pszName, cx, cy, phico)
; hinst : HINSTANCE optional -> "sptr"
; pszName : LPCWSTR -> "wstr"
; cx : INT -> "int"
; cy : INT -> "int"
; phico : HICON* out -> "sptr"

; HRESULT LoadIconWithScaleDown(HINSTANCE hinst, LPCWSTR pszName, INT cx, INT cy, HICON* phico)
#uselib "COMCTL32.dll"
#cfunc global LoadIconWithScaleDown "LoadIconWithScaleDown" intptr, wstr, int, int, intptr
; res = LoadIconWithScaleDown(hinst, pszName, cx, cy, phico)
; hinst : HINSTANCE optional -> "intptr"
; pszName : LPCWSTR -> "wstr"
; cx : INT -> "int"
; cy : INT -> "int"
; phico : HICON* out -> "intptr"

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

var (
	comctl32 = windows.NewLazySystemDLL("COMCTL32.dll")
	procLoadIconWithScaleDown = comctl32.NewProc("LoadIconWithScaleDown")
)

// hinst (HINSTANCE optional), pszName (LPCWSTR), cx (INT), cy (INT), phico (HICON* out)
r1, _, err := procLoadIconWithScaleDown.Call(
	uintptr(hinst),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszName))),
	uintptr(cx),
	uintptr(cy),
	uintptr(phico),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function LoadIconWithScaleDown(
  hinst: THandle;   // HINSTANCE optional
  pszName: PWideChar;   // LPCWSTR
  cx: Integer;   // INT
  cy: Integer;   // INT
  phico: Pointer   // HICON* out
): Integer; stdcall;
  external 'COMCTL32.dll' name 'LoadIconWithScaleDown';

result := DllCall("COMCTL32\LoadIconWithScaleDown"
    , "Ptr", hinst   ; HINSTANCE optional
    , "WStr", pszName   ; LPCWSTR
    , "Int", cx   ; INT
    , "Int", cy   ; INT
    , "Ptr", phico   ; HICON* out
    , "Int")   ; return: HRESULT

●LoadIconWithScaleDown(hinst, pszName, cx, cy, phico) = DLL("COMCTL32.dll", "int LoadIconWithScaleDown(void*, char*, int, int, void*)")
# 呼び出し: LoadIconWithScaleDown(hinst, pszName, cx, cy, phico)
# hinst : HINSTANCE optional -> "void*"
# pszName : LPCWSTR -> "char*"
# cx : INT -> "int"
# cy : INT -> "int"
# phico : HICON* 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 "comctl32" fn LoadIconWithScaleDown(
    hinst: ?*anyopaque, // HINSTANCE optional
    pszName: [*c]const u16, // LPCWSTR
    cx: i32, // INT
    cy: i32, // INT
    phico: ?*anyopaque // HICON* out
) callconv(std.os.windows.WINAPI) i32;

proc LoadIconWithScaleDown(
    hinst: pointer,  # HINSTANCE optional
    pszName: WideCString,  # LPCWSTR
    cx: int32,  # INT
    cy: int32,  # INT
    phico: pointer  # HICON* out
): int32 {.importc: "LoadIconWithScaleDown", stdcall, dynlib: "COMCTL32.dll".}

pragma(lib, "comctl32");
extern(Windows)
int LoadIconWithScaleDown(
    void* hinst,   // HINSTANCE optional
    const(wchar)* pszName,   // LPCWSTR
    int cx,   // INT
    int cy,   // INT
    void* phico   // HICON* out
);

ccall((:LoadIconWithScaleDown, "COMCTL32.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Cwstring, Int32, Int32, Ptr{Cvoid}),
      hinst, pszName, cx, cy, phico)
# hinst : HINSTANCE optional -> Ptr{Cvoid}
# pszName : LPCWSTR -> Cwstring
# cx : INT -> Int32
# cy : INT -> Int32
# phico : HICON* 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 LoadIconWithScaleDown(
    void* hinst,
    const uint16_t* pszName,
    int32_t cx,
    int32_t cy,
    void* phico);
]]
local comctl32 = ffi.load("comctl32")
-- comctl32.LoadIconWithScaleDown(hinst, pszName, cx, cy, phico)
-- hinst : HINSTANCE optional
-- pszName : LPCWSTR
-- cx : INT
-- cy : INT
-- phico : HICON* 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('COMCTL32.dll');
const LoadIconWithScaleDown = lib.func('__stdcall', 'LoadIconWithScaleDown', 'int32_t', ['void *', 'str16', 'int32_t', 'int32_t', 'void *']);
// LoadIconWithScaleDown(hinst, pszName, cx, cy, phico)
// hinst : HINSTANCE optional -> 'void *'
// pszName : LPCWSTR -> 'str16'
// cx : INT -> 'int32_t'
// cy : INT -> 'int32_t'
// phico : HICON* 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("COMCTL32.dll", {
  LoadIconWithScaleDown: { parameters: ["pointer", "buffer", "i32", "i32", "pointer"], result: "i32" },
});
// lib.symbols.LoadIconWithScaleDown(hinst, pszName, cx, cy, phico)
// hinst : HINSTANCE optional -> "pointer"
// pszName : LPCWSTR -> "buffer"
// cx : INT -> "i32"
// cy : INT -> "i32"
// phico : HICON* 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 LoadIconWithScaleDown(
    void* hinst,
    const uint16_t* pszName,
    int32_t cx,
    int32_t cy,
    void* phico);
C, "COMCTL32.dll");
// $ffi->LoadIconWithScaleDown(hinst, pszName, cx, cy, phico);
// hinst : HINSTANCE optional
// pszName : LPCWSTR
// cx : INT
// cy : INT
// phico : HICON* 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 Comctl32 extends StdCallLibrary {
    Comctl32 INSTANCE = Native.load("comctl32", Comctl32.class);
    int LoadIconWithScaleDown(
        Pointer hinst,   // HINSTANCE optional
        WString pszName,   // LPCWSTR
        int cx,   // INT
        int cy,   // INT
        Pointer phico   // HICON* out
    );
}

@[Link("comctl32")]
lib LibCOMCTL32
  fun LoadIconWithScaleDown = LoadIconWithScaleDown(
    hinst : Void*,   # HINSTANCE optional
    pszName : UInt16*,   # LPCWSTR
    cx : Int32,   # INT
    cy : Int32,   # INT
    phico : Void*   # HICON* 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 LoadIconWithScaleDownNative = Int32 Function(Pointer<Void>, Pointer<Utf16>, Int32, Int32, Pointer<Void>);
typedef LoadIconWithScaleDownDart = int Function(Pointer<Void>, Pointer<Utf16>, int, int, Pointer<Void>);
final LoadIconWithScaleDown = DynamicLibrary.open('COMCTL32.dll')
    .lookupFunction<LoadIconWithScaleDownNative, LoadIconWithScaleDownDart>('LoadIconWithScaleDown');
// hinst : HINSTANCE optional -> Pointer<Void>
// pszName : LPCWSTR -> Pointer<Utf16>
// cx : INT -> Int32
// cy : INT -> Int32
// phico : HICON* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function LoadIconWithScaleDown(
  hinst: THandle;   // HINSTANCE optional
  pszName: PWideChar;   // LPCWSTR
  cx: Integer;   // INT
  cy: Integer;   // INT
  phico: Pointer   // HICON* out
): Integer; stdcall;
  external 'COMCTL32.dll' name 'LoadIconWithScaleDown';

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

foreign import stdcall safe "LoadIconWithScaleDown"
  c_LoadIconWithScaleDown :: Ptr () -> CWString -> Int32 -> Int32 -> Ptr () -> IO Int32
-- hinst : HINSTANCE optional -> Ptr ()
-- pszName : LPCWSTR -> CWString
-- cx : INT -> Int32
-- cy : INT -> Int32
-- phico : HICON* 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 loadiconwithscaledown =
  foreign "LoadIconWithScaleDown"
    ((ptr void) @-> (ptr uint16_t) @-> int32_t @-> int32_t @-> (ptr void) @-> returning int32_t)
(* hinst : HINSTANCE optional -> (ptr void) *)
(* pszName : LPCWSTR -> (ptr uint16_t) *)
(* cx : INT -> int32_t *)
(* cy : INT -> int32_t *)
(* phico : HICON* 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 comctl32 (t "COMCTL32.dll"))
(cffi:use-foreign-library comctl32)

(cffi:defcfun ("LoadIconWithScaleDown" load-icon-with-scale-down :convention :stdcall) :int32
  (hinst :pointer)   ; HINSTANCE optional
  (psz-name (:string :encoding :utf-16le))   ; LPCWSTR
  (cx :int32)   ; INT
  (cy :int32)   ; INT
  (phico :pointer))   ; HICON* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $LoadIconWithScaleDown = Win32::API::More->new('COMCTL32',
    'int LoadIconWithScaleDown(HANDLE hinst, LPCWSTR pszName, int cx, int cy, HANDLE phico)');
# my $ret = $LoadIconWithScaleDown->Call($hinst, $pszName, $cx, $cy, $phico);
# hinst : HINSTANCE optional -> HANDLE
# pszName : LPCWSTR -> LPCWSTR
# cx : INT -> int
# cy : INT -> int
# phico : HICON* out -> HANDLE
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。