LookupIconIdFromDirectory

// USER32.dll
#include <windows.h>

INT LookupIconIdFromDirectory(
    BYTE* presbits,
    BOOL fIcon
);

<DllImport("USER32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function LookupIconIdFromDirectory(
    presbits As IntPtr,   ' BYTE*
    fIcon As Boolean   ' BOOL
) As Integer
End Function

' presbits : BYTE*
' fIcon : BOOL
Declare PtrSafe Function LookupIconIdFromDirectory Lib "user32" ( _
    ByVal presbits As LongPtr, _
    ByVal fIcon 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

LookupIconIdFromDirectory = ctypes.windll.user32.LookupIconIdFromDirectory
LookupIconIdFromDirectory.restype = ctypes.c_int
LookupIconIdFromDirectory.argtypes = [
    ctypes.POINTER(ctypes.c_ubyte),  # presbits : BYTE*
    wintypes.BOOL,  # fIcon : BOOL
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
LookupIconIdFromDirectory = Fiddle::Function.new(
  lib['LookupIconIdFromDirectory'],
  [
    Fiddle::TYPE_VOIDP,  # presbits : BYTE*
    Fiddle::TYPE_INT,  # fIcon : BOOL
  ],
  Fiddle::TYPE_INT)

#[link(name = "user32")]
extern "system" {
    fn LookupIconIdFromDirectory(
        presbits: *mut u8,  // BYTE*
        fIcon: i32  // BOOL
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("USER32.dll", SetLastError = true)]
public static extern int LookupIconIdFromDirectory(IntPtr presbits, bool fIcon);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_LookupIconIdFromDirectory' -Namespace Win32 -PassThru
# $api::LookupIconIdFromDirectory(presbits, fIcon)

#uselib "USER32.dll"
#func global LookupIconIdFromDirectory "LookupIconIdFromDirectory" sptr, sptr
; LookupIconIdFromDirectory varptr(presbits), fIcon   ; 戻り値は stat
; presbits : BYTE* -> "sptr"
; fIcon : BOOL -> "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 "USER32.dll"
#cfunc global LookupIconIdFromDirectory "LookupIconIdFromDirectory" var, int
; res = LookupIconIdFromDirectory(presbits, fIcon)
; presbits : BYTE* -> "var"
; fIcon : BOOL -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; INT LookupIconIdFromDirectory(BYTE* presbits, BOOL fIcon)
#uselib "USER32.dll"
#cfunc global LookupIconIdFromDirectory "LookupIconIdFromDirectory" var, int
; res = LookupIconIdFromDirectory(presbits, fIcon)
; presbits : BYTE* -> "var"
; fIcon : BOOL -> "int"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procLookupIconIdFromDirectory = user32.NewProc("LookupIconIdFromDirectory")
)

// presbits (BYTE*), fIcon (BOOL)
r1, _, err := procLookupIconIdFromDirectory.Call(
	uintptr(presbits),
	uintptr(fIcon),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function LookupIconIdFromDirectory(
  presbits: Pointer;   // BYTE*
  fIcon: BOOL   // BOOL
): Integer; stdcall;
  external 'USER32.dll' name 'LookupIconIdFromDirectory';

result := DllCall("USER32\LookupIconIdFromDirectory"
    , "Ptr", presbits   ; BYTE*
    , "Int", fIcon   ; BOOL
    , "Int")   ; return: INT

●LookupIconIdFromDirectory(presbits, fIcon) = DLL("USER32.dll", "int LookupIconIdFromDirectory(void*, bool)")
# 呼び出し: LookupIconIdFromDirectory(presbits, fIcon)
# presbits : BYTE* -> "void*"
# fIcon : BOOL -> "bool"
# 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)。