LoadIconMetric

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

HRESULT LoadIconMetric(
    HINSTANCE hinst,   // optional
    LPCWSTR pszName,
    _LI_METRIC lims,
    HICON* phico
);

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

' hinst : HINSTANCE optional
' pszName : LPCWSTR
' lims : _LI_METRIC
' phico : HICON* out
Declare PtrSafe Function LoadIconMetric Lib "comctl32" ( _
    ByVal hinst As LongPtr, _
    ByVal pszName As LongPtr, _
    ByVal lims 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

LoadIconMetric = ctypes.windll.comctl32.LoadIconMetric
LoadIconMetric.restype = ctypes.c_int
LoadIconMetric.argtypes = [
    wintypes.HANDLE,  # hinst : HINSTANCE optional
    wintypes.LPCWSTR,  # pszName : LPCWSTR
    ctypes.c_int,  # lims : _LI_METRIC
    ctypes.c_void_p,  # phico : HICON* out
]

require 'fiddle'
require 'fiddle/import'

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

#[link(name = "comctl32")]
extern "system" {
    fn LoadIconMetric(
        hinst: *mut core::ffi::c_void,  // HINSTANCE optional
        pszName: *const u16,  // LPCWSTR
        lims: i32,  // _LI_METRIC
        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 LoadIconMetric(IntPtr hinst, [MarshalAs(UnmanagedType.LPWStr)] string pszName, int lims, IntPtr phico);
"@
$api = Add-Type -MemberDefinition $sig -Name 'COMCTL32_LoadIconMetric' -Namespace Win32 -PassThru
# $api::LoadIconMetric(hinst, pszName, lims, phico)

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

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

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

var (
	comctl32 = windows.NewLazySystemDLL("COMCTL32.dll")
	procLoadIconMetric = comctl32.NewProc("LoadIconMetric")
)

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

function LoadIconMetric(
  hinst: THandle;   // HINSTANCE optional
  pszName: PWideChar;   // LPCWSTR
  lims: Integer;   // _LI_METRIC
  phico: Pointer   // HICON* out
): Integer; stdcall;
  external 'COMCTL32.dll' name 'LoadIconMetric';

result := DllCall("COMCTL32\LoadIconMetric"
    , "Ptr", hinst   ; HINSTANCE optional
    , "WStr", pszName   ; LPCWSTR
    , "Int", lims   ; _LI_METRIC
    , "Ptr", phico   ; HICON* out
    , "Int")   ; return: HRESULT

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

proc LoadIconMetric(
    hinst: pointer,  # HINSTANCE optional
    pszName: WideCString,  # LPCWSTR
    lims: int32,  # _LI_METRIC
    phico: pointer  # HICON* out
): int32 {.importc: "LoadIconMetric", stdcall, dynlib: "COMCTL32.dll".}

pragma(lib, "comctl32");
extern(Windows)
int LoadIconMetric(
    void* hinst,   // HINSTANCE optional
    const(wchar)* pszName,   // LPCWSTR
    int lims,   // _LI_METRIC
    void* phico   // HICON* out
);

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

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

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

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

foreign import stdcall safe "LoadIconMetric"
  c_LoadIconMetric :: Ptr () -> CWString -> Int32 -> Ptr () -> IO Int32
-- hinst : HINSTANCE optional -> Ptr ()
-- pszName : LPCWSTR -> CWString
-- lims : _LI_METRIC -> 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 loadiconmetric =
  foreign "LoadIconMetric"
    ((ptr void) @-> (ptr uint16_t) @-> int32_t @-> (ptr void) @-> returning int32_t)
(* hinst : HINSTANCE optional -> (ptr void) *)
(* pszName : LPCWSTR -> (ptr uint16_t) *)
(* lims : _LI_METRIC -> 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 ("LoadIconMetric" load-icon-metric :convention :stdcall) :int32
  (hinst :pointer)   ; HINSTANCE optional
  (psz-name (:string :encoding :utf-16le))   ; LPCWSTR
  (lims :int32)   ; _LI_METRIC
  (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 $LoadIconMetric = Win32::API::More->new('COMCTL32',
    'int LoadIconMetric(HANDLE hinst, LPCWSTR pszName, int lims, HANDLE phico)');
# my $ret = $LoadIconMetric->Call($hinst, $pszName, $lims, $phico);
# hinst : HINSTANCE optional -> HANDLE
# pszName : LPCWSTR -> LPCWSTR
# lims : _LI_METRIC -> 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。