EnumSystemLanguageGroupsA

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

BOOL EnumSystemLanguageGroupsA(
    LANGUAGEGROUP_ENUMPROCA lpLanguageGroupEnumProc,
    ENUM_SYSTEM_LANGUAGE_GROUPS_FLAGS dwFlags,
    INT_PTR lParam
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function EnumSystemLanguageGroupsA(
    lpLanguageGroupEnumProc As IntPtr,   ' LANGUAGEGROUP_ENUMPROCA
    dwFlags As UInteger,   ' ENUM_SYSTEM_LANGUAGE_GROUPS_FLAGS
    lParam As IntPtr   ' INT_PTR
) As Boolean
End Function

' lpLanguageGroupEnumProc : LANGUAGEGROUP_ENUMPROCA
' dwFlags : ENUM_SYSTEM_LANGUAGE_GROUPS_FLAGS
' lParam : INT_PTR
Declare PtrSafe Function EnumSystemLanguageGroupsA Lib "kernel32" ( _
    ByVal lpLanguageGroupEnumProc As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal lParam 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

EnumSystemLanguageGroupsA = ctypes.windll.kernel32.EnumSystemLanguageGroupsA
EnumSystemLanguageGroupsA.restype = wintypes.BOOL
EnumSystemLanguageGroupsA.argtypes = [
    ctypes.c_void_p,  # lpLanguageGroupEnumProc : LANGUAGEGROUP_ENUMPROCA
    wintypes.DWORD,  # dwFlags : ENUM_SYSTEM_LANGUAGE_GROUPS_FLAGS
    ctypes.c_ssize_t,  # lParam : INT_PTR
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
EnumSystemLanguageGroupsA = Fiddle::Function.new(
  lib['EnumSystemLanguageGroupsA'],
  [
    Fiddle::TYPE_VOIDP,  # lpLanguageGroupEnumProc : LANGUAGEGROUP_ENUMPROCA
    -Fiddle::TYPE_INT,  # dwFlags : ENUM_SYSTEM_LANGUAGE_GROUPS_FLAGS
    Fiddle::TYPE_INTPTR_T,  # lParam : INT_PTR
  ],
  Fiddle::TYPE_INT)

#[link(name = "kernel32")]
extern "system" {
    fn EnumSystemLanguageGroupsA(
        lpLanguageGroupEnumProc: *const core::ffi::c_void,  // LANGUAGEGROUP_ENUMPROCA
        dwFlags: u32,  // ENUM_SYSTEM_LANGUAGE_GROUPS_FLAGS
        lParam: isize  // INT_PTR
    ) -> 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 EnumSystemLanguageGroupsA(IntPtr lpLanguageGroupEnumProc, uint dwFlags, IntPtr lParam);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_EnumSystemLanguageGroupsA' -Namespace Win32 -PassThru
# $api::EnumSystemLanguageGroupsA(lpLanguageGroupEnumProc, dwFlags, lParam)

#uselib "KERNEL32.dll"
#func global EnumSystemLanguageGroupsA "EnumSystemLanguageGroupsA" sptr, sptr, sptr
; EnumSystemLanguageGroupsA lpLanguageGroupEnumProc, dwFlags, lParam   ; 戻り値は stat
; lpLanguageGroupEnumProc : LANGUAGEGROUP_ENUMPROCA -> "sptr"
; dwFlags : ENUM_SYSTEM_LANGUAGE_GROUPS_FLAGS -> "sptr"
; lParam : INT_PTR -> "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 EnumSystemLanguageGroupsA "EnumSystemLanguageGroupsA" sptr, int, sptr
; res = EnumSystemLanguageGroupsA(lpLanguageGroupEnumProc, dwFlags, lParam)
; lpLanguageGroupEnumProc : LANGUAGEGROUP_ENUMPROCA -> "sptr"
; dwFlags : ENUM_SYSTEM_LANGUAGE_GROUPS_FLAGS -> "int"
; lParam : INT_PTR -> "sptr"

; BOOL EnumSystemLanguageGroupsA(LANGUAGEGROUP_ENUMPROCA lpLanguageGroupEnumProc, ENUM_SYSTEM_LANGUAGE_GROUPS_FLAGS dwFlags, INT_PTR lParam)
#uselib "KERNEL32.dll"
#cfunc global EnumSystemLanguageGroupsA "EnumSystemLanguageGroupsA" intptr, int, intptr
; res = EnumSystemLanguageGroupsA(lpLanguageGroupEnumProc, dwFlags, lParam)
; lpLanguageGroupEnumProc : LANGUAGEGROUP_ENUMPROCA -> "intptr"
; dwFlags : ENUM_SYSTEM_LANGUAGE_GROUPS_FLAGS -> "int"
; lParam : INT_PTR -> "intptr"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procEnumSystemLanguageGroupsA = kernel32.NewProc("EnumSystemLanguageGroupsA")
)

// lpLanguageGroupEnumProc (LANGUAGEGROUP_ENUMPROCA), dwFlags (ENUM_SYSTEM_LANGUAGE_GROUPS_FLAGS), lParam (INT_PTR)
r1, _, err := procEnumSystemLanguageGroupsA.Call(
	uintptr(lpLanguageGroupEnumProc),
	uintptr(dwFlags),
	uintptr(lParam),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function EnumSystemLanguageGroupsA(
  lpLanguageGroupEnumProc: Pointer;   // LANGUAGEGROUP_ENUMPROCA
  dwFlags: DWORD;   // ENUM_SYSTEM_LANGUAGE_GROUPS_FLAGS
  lParam: NativeInt   // INT_PTR
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'EnumSystemLanguageGroupsA';

result := DllCall("KERNEL32\EnumSystemLanguageGroupsA"
    , "Ptr", lpLanguageGroupEnumProc   ; LANGUAGEGROUP_ENUMPROCA
    , "UInt", dwFlags   ; ENUM_SYSTEM_LANGUAGE_GROUPS_FLAGS
    , "Ptr", lParam   ; INT_PTR
    , "Int")   ; return: BOOL

●EnumSystemLanguageGroupsA(lpLanguageGroupEnumProc, dwFlags, lParam) = DLL("KERNEL32.dll", "bool EnumSystemLanguageGroupsA(void*, dword, int)")
# 呼び出し: EnumSystemLanguageGroupsA(lpLanguageGroupEnumProc, dwFlags, lParam)
# lpLanguageGroupEnumProc : LANGUAGEGROUP_ENUMPROCA -> "void*"
# dwFlags : ENUM_SYSTEM_LANGUAGE_GROUPS_FLAGS -> "dword"
# lParam : INT_PTR -> "int"
# 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)。