GetUserDefaultUILanguage

// KERNEL32.dll
#include <windows.h>

WORD GetUserDefaultUILanguage(void);

<DllImport("KERNEL32.dll", ExactSpelling:=True)>
Public Shared Function GetUserDefaultUILanguage() As UShort
End Function

Declare PtrSafe Function GetUserDefaultUILanguage Lib "kernel32" () As Integer
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetUserDefaultUILanguage = ctypes.windll.kernel32.GetUserDefaultUILanguage
GetUserDefaultUILanguage.restype = ctypes.c_ushort
GetUserDefaultUILanguage.argtypes = []

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
GetUserDefaultUILanguage = Fiddle::Function.new(
  lib['GetUserDefaultUILanguage'],
  [],
  -Fiddle::TYPE_SHORT)

#[link(name = "kernel32")]
extern "system" {
    fn GetUserDefaultUILanguage() -> u16;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("KERNEL32.dll")]
public static extern ushort GetUserDefaultUILanguage();
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_GetUserDefaultUILanguage' -Namespace Win32 -PassThru
# $api::GetUserDefaultUILanguage()

#uselib "KERNEL32.dll"
#func global GetUserDefaultUILanguage "GetUserDefaultUILanguage"
; GetUserDefaultUILanguage   ; 戻り値は stat
; ※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 GetUserDefaultUILanguage "GetUserDefaultUILanguage"
; res = GetUserDefaultUILanguage()

; WORD GetUserDefaultUILanguage()
#uselib "KERNEL32.dll"
#cfunc global GetUserDefaultUILanguage "GetUserDefaultUILanguage"
; res = GetUserDefaultUILanguage()

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procGetUserDefaultUILanguage = kernel32.NewProc("GetUserDefaultUILanguage")
)

r1, _, err := procGetUserDefaultUILanguage.Call()
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WORD

function GetUserDefaultUILanguage: Word; stdcall;
  external 'KERNEL32.dll' name 'GetUserDefaultUILanguage';

result := DllCall("KERNEL32\GetUserDefaultUILanguage", "UShort")

●GetUserDefaultUILanguage() = DLL("KERNEL32.dll", "int GetUserDefaultUILanguage()")
# 呼び出し: GetUserDefaultUILanguage()
# 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)。