GetKeyboardLayout

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

HKL GetKeyboardLayout(
    DWORD idThread
);

<DllImport("USER32.dll", ExactSpelling:=True)>
Public Shared Function GetKeyboardLayout(
    idThread As UInteger   ' DWORD
) As IntPtr
End Function

' idThread : DWORD
Declare PtrSafe Function GetKeyboardLayout Lib "user32" ( _
    ByVal idThread As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

GetKeyboardLayout = ctypes.windll.user32.GetKeyboardLayout
GetKeyboardLayout.restype = ctypes.c_void_p
GetKeyboardLayout.argtypes = [
    wintypes.DWORD,  # idThread : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USER32.dll')
GetKeyboardLayout = Fiddle::Function.new(
  lib['GetKeyboardLayout'],
  [
    -Fiddle::TYPE_INT,  # idThread : DWORD
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "user32")]
extern "system" {
    fn GetKeyboardLayout(
        idThread: u32  // DWORD
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("USER32.dll")]
public static extern IntPtr GetKeyboardLayout(uint idThread);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USER32_GetKeyboardLayout' -Namespace Win32 -PassThru
# $api::GetKeyboardLayout(idThread)

#uselib "USER32.dll"
#func global GetKeyboardLayout "GetKeyboardLayout" sptr
; GetKeyboardLayout idThread   ; 戻り値は stat
; idThread : 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 "USER32.dll"
#cfunc global GetKeyboardLayout "GetKeyboardLayout" int
; res = GetKeyboardLayout(idThread)
; idThread : DWORD -> "int"

; HKL GetKeyboardLayout(DWORD idThread)
#uselib "USER32.dll"
#cfunc global GetKeyboardLayout "GetKeyboardLayout" int
; res = GetKeyboardLayout(idThread)
; idThread : DWORD -> "int"

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

var (
	user32 = windows.NewLazySystemDLL("USER32.dll")
	procGetKeyboardLayout = user32.NewProc("GetKeyboardLayout")
)

// idThread (DWORD)
r1, _, err := procGetKeyboardLayout.Call(
	uintptr(idThread),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HKL

function GetKeyboardLayout(
  idThread: DWORD   // DWORD
): THandle; stdcall;
  external 'USER32.dll' name 'GetKeyboardLayout';

result := DllCall("USER32\GetKeyboardLayout"
    , "UInt", idThread   ; DWORD
    , "Ptr")   ; return: HKL

●GetKeyboardLayout(idThread) = DLL("USER32.dll", "void* GetKeyboardLayout(dword)")
# 呼び出し: GetKeyboardLayout(idThread)
# idThread : 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)。