EnumSystemLocalesA

// KERNEL32.dll  (ANSI / -A)
#include <windows.h>

BOOL EnumSystemLocalesA(
    LOCALE_ENUMPROCA lpLocaleEnumProc,
    DWORD dwFlags
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function EnumSystemLocalesA(
    lpLocaleEnumProc As IntPtr,   ' LOCALE_ENUMPROCA
    dwFlags As UInteger   ' DWORD
) As Boolean
End Function

' lpLocaleEnumProc : LOCALE_ENUMPROCA
' dwFlags : DWORD
Declare PtrSafe Function EnumSystemLocalesA Lib "kernel32" ( _
    ByVal lpLocaleEnumProc As LongPtr, _
    ByVal dwFlags 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

EnumSystemLocalesA = ctypes.windll.kernel32.EnumSystemLocalesA
EnumSystemLocalesA.restype = wintypes.BOOL
EnumSystemLocalesA.argtypes = [
    ctypes.c_void_p,  # lpLocaleEnumProc : LOCALE_ENUMPROCA
    wintypes.DWORD,  # dwFlags : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
EnumSystemLocalesA = Fiddle::Function.new(
  lib['EnumSystemLocalesA'],
  [
    Fiddle::TYPE_VOIDP,  # lpLocaleEnumProc : LOCALE_ENUMPROCA
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn EnumSystemLocalesA(
        lpLocaleEnumProc: *const core::ffi::c_void,  // LOCALE_ENUMPROCA
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern bool EnumSystemLocalesA(IntPtr lpLocaleEnumProc, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_EnumSystemLocalesA' -Namespace Win32 -PassThru
# $api::EnumSystemLocalesA(lpLocaleEnumProc, dwFlags)

#uselib "KERNEL32.dll"
#func global EnumSystemLocalesA "EnumSystemLocalesA" sptr, sptr
; EnumSystemLocalesA lpLocaleEnumProc, dwFlags   ; 戻り値は stat
; lpLocaleEnumProc : LOCALE_ENUMPROCA -> "sptr"
; dwFlags : DWORD -> "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 "KERNEL32.dll"
#cfunc global EnumSystemLocalesA "EnumSystemLocalesA" sptr, int
; res = EnumSystemLocalesA(lpLocaleEnumProc, dwFlags)
; lpLocaleEnumProc : LOCALE_ENUMPROCA -> "sptr"
; dwFlags : DWORD -> "int"

; BOOL EnumSystemLocalesA(LOCALE_ENUMPROCA lpLocaleEnumProc, DWORD dwFlags)
#uselib "KERNEL32.dll"
#cfunc global EnumSystemLocalesA "EnumSystemLocalesA" intptr, int
; res = EnumSystemLocalesA(lpLocaleEnumProc, dwFlags)
; lpLocaleEnumProc : LOCALE_ENUMPROCA -> "intptr"
; dwFlags : DWORD -> "int"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procEnumSystemLocalesA = kernel32.NewProc("EnumSystemLocalesA")
)

// lpLocaleEnumProc (LOCALE_ENUMPROCA), dwFlags (DWORD)
r1, _, err := procEnumSystemLocalesA.Call(
	uintptr(lpLocaleEnumProc),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function EnumSystemLocalesA(
  lpLocaleEnumProc: Pointer;   // LOCALE_ENUMPROCA
  dwFlags: DWORD   // DWORD
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'EnumSystemLocalesA';

result := DllCall("KERNEL32\EnumSystemLocalesA"
    , "Ptr", lpLocaleEnumProc   ; LOCALE_ENUMPROCA
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: BOOL

●EnumSystemLocalesA(lpLocaleEnumProc, dwFlags) = DLL("KERNEL32.dll", "bool EnumSystemLocalesA(void*, dword)")
# 呼び出し: EnumSystemLocalesA(lpLocaleEnumProc, dwFlags)
# lpLocaleEnumProc : LOCALE_ENUMPROCA -> "void*"
# dwFlags : DWORD -> "dword"
# 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)。