ImmGetImeMenuItemsW

// IMM32.dll  (Unicode / -W)
#include <windows.h>

DWORD ImmGetImeMenuItemsW(
    HIMC param0,
    DWORD param1,
    DWORD param2,
    IMEMENUITEMINFOW* lpImeParentMenu,   // optional
    IMEMENUITEMINFOW* lpImeMenu,   // optional
    DWORD dwSize
);

<DllImport("IMM32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function ImmGetImeMenuItemsW(
    param0 As IntPtr,   ' HIMC
    param1 As UInteger,   ' DWORD
    param2 As UInteger,   ' DWORD
    lpImeParentMenu As IntPtr,   ' IMEMENUITEMINFOW* optional, out
    lpImeMenu As IntPtr,   ' IMEMENUITEMINFOW* optional, out
    dwSize As UInteger   ' DWORD
) As UInteger
End Function

' param0 : HIMC
' param1 : DWORD
' param2 : DWORD
' lpImeParentMenu : IMEMENUITEMINFOW* optional, out
' lpImeMenu : IMEMENUITEMINFOW* optional, out
' dwSize : DWORD
Declare PtrSafe Function ImmGetImeMenuItemsW Lib "imm32" ( _
    ByVal param0 As LongPtr, _
    ByVal param1 As Long, _
    ByVal param2 As Long, _
    ByVal lpImeParentMenu As LongPtr, _
    ByVal lpImeMenu As LongPtr, _
    ByVal dwSize As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ImmGetImeMenuItemsW = ctypes.windll.imm32.ImmGetImeMenuItemsW
ImmGetImeMenuItemsW.restype = wintypes.DWORD
ImmGetImeMenuItemsW.argtypes = [
    wintypes.HANDLE,  # param0 : HIMC
    wintypes.DWORD,  # param1 : DWORD
    wintypes.DWORD,  # param2 : DWORD
    ctypes.c_void_p,  # lpImeParentMenu : IMEMENUITEMINFOW* optional, out
    ctypes.c_void_p,  # lpImeMenu : IMEMENUITEMINFOW* optional, out
    wintypes.DWORD,  # dwSize : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('IMM32.dll')
ImmGetImeMenuItemsW = Fiddle::Function.new(
  lib['ImmGetImeMenuItemsW'],
  [
    Fiddle::TYPE_VOIDP,  # param0 : HIMC
    -Fiddle::TYPE_INT,  # param1 : DWORD
    -Fiddle::TYPE_INT,  # param2 : DWORD
    Fiddle::TYPE_VOIDP,  # lpImeParentMenu : IMEMENUITEMINFOW* optional, out
    Fiddle::TYPE_VOIDP,  # lpImeMenu : IMEMENUITEMINFOW* optional, out
    -Fiddle::TYPE_INT,  # dwSize : DWORD
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "imm32")]
extern "system" {
    fn ImmGetImeMenuItemsW(
        param0: *mut core::ffi::c_void,  // HIMC
        param1: u32,  // DWORD
        param2: u32,  // DWORD
        lpImeParentMenu: *mut IMEMENUITEMINFOW,  // IMEMENUITEMINFOW* optional, out
        lpImeMenu: *mut IMEMENUITEMINFOW,  // IMEMENUITEMINFOW* optional, out
        dwSize: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("IMM32.dll", CharSet = CharSet.Unicode)]
public static extern uint ImmGetImeMenuItemsW(IntPtr param0, uint param1, uint param2, IntPtr lpImeParentMenu, IntPtr lpImeMenu, uint dwSize);
"@
$api = Add-Type -MemberDefinition $sig -Name 'IMM32_ImmGetImeMenuItemsW' -Namespace Win32 -PassThru
# $api::ImmGetImeMenuItemsW(param0, param1, param2, lpImeParentMenu, lpImeMenu, dwSize)

#uselib "IMM32.dll"
#func global ImmGetImeMenuItemsW "ImmGetImeMenuItemsW" wptr, wptr, wptr, wptr, wptr, wptr
; ImmGetImeMenuItemsW param0, param1, param2, varptr(lpImeParentMenu), varptr(lpImeMenu), dwSize   ; 戻り値は stat
; param0 : HIMC -> "wptr"
; param1 : DWORD -> "wptr"
; param2 : DWORD -> "wptr"
; lpImeParentMenu : IMEMENUITEMINFOW* optional, out -> "wptr"
; lpImeMenu : IMEMENUITEMINFOW* optional, out -> "wptr"
; dwSize : DWORD -> "wptr"
; ※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 "IMM32.dll"
#cfunc global ImmGetImeMenuItemsW "ImmGetImeMenuItemsW" sptr, int, int, var, var, int
; res = ImmGetImeMenuItemsW(param0, param1, param2, lpImeParentMenu, lpImeMenu, dwSize)
; param0 : HIMC -> "sptr"
; param1 : DWORD -> "int"
; param2 : DWORD -> "int"
; lpImeParentMenu : IMEMENUITEMINFOW* optional, out -> "var"
; lpImeMenu : IMEMENUITEMINFOW* optional, out -> "var"
; dwSize : DWORD -> "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。

; DWORD ImmGetImeMenuItemsW(HIMC param0, DWORD param1, DWORD param2, IMEMENUITEMINFOW* lpImeParentMenu, IMEMENUITEMINFOW* lpImeMenu, DWORD dwSize)
#uselib "IMM32.dll"
#cfunc global ImmGetImeMenuItemsW "ImmGetImeMenuItemsW" intptr, int, int, var, var, int
; res = ImmGetImeMenuItemsW(param0, param1, param2, lpImeParentMenu, lpImeMenu, dwSize)
; param0 : HIMC -> "intptr"
; param1 : DWORD -> "int"
; param2 : DWORD -> "int"
; lpImeParentMenu : IMEMENUITEMINFOW* optional, out -> "var"
; lpImeMenu : IMEMENUITEMINFOW* optional, out -> "var"
; dwSize : DWORD -> "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 (
	imm32 = windows.NewLazySystemDLL("IMM32.dll")
	procImmGetImeMenuItemsW = imm32.NewProc("ImmGetImeMenuItemsW")
)

// param0 (HIMC), param1 (DWORD), param2 (DWORD), lpImeParentMenu (IMEMENUITEMINFOW* optional, out), lpImeMenu (IMEMENUITEMINFOW* optional, out), dwSize (DWORD)
r1, _, err := procImmGetImeMenuItemsW.Call(
	uintptr(param0),
	uintptr(param1),
	uintptr(param2),
	uintptr(lpImeParentMenu),
	uintptr(lpImeMenu),
	uintptr(dwSize),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function ImmGetImeMenuItemsW(
  param0: THandle;   // HIMC
  param1: DWORD;   // DWORD
  param2: DWORD;   // DWORD
  lpImeParentMenu: Pointer;   // IMEMENUITEMINFOW* optional, out
  lpImeMenu: Pointer;   // IMEMENUITEMINFOW* optional, out
  dwSize: DWORD   // DWORD
): DWORD; stdcall;
  external 'IMM32.dll' name 'ImmGetImeMenuItemsW';

result := DllCall("IMM32\ImmGetImeMenuItemsW"
    , "Ptr", param0   ; HIMC
    , "UInt", param1   ; DWORD
    , "UInt", param2   ; DWORD
    , "Ptr", lpImeParentMenu   ; IMEMENUITEMINFOW* optional, out
    , "Ptr", lpImeMenu   ; IMEMENUITEMINFOW* optional, out
    , "UInt", dwSize   ; DWORD
    , "UInt")   ; return: DWORD

●ImmGetImeMenuItemsW(param0, param1, param2, lpImeParentMenu, lpImeMenu, dwSize) = DLL("IMM32.dll", "dword ImmGetImeMenuItemsW(void*, dword, dword, void*, void*, dword)")
# 呼び出し: ImmGetImeMenuItemsW(param0, param1, param2, lpImeParentMenu, lpImeMenu, dwSize)
# param0 : HIMC -> "void*"
# param1 : DWORD -> "dword"
# param2 : DWORD -> "dword"
# lpImeParentMenu : IMEMENUITEMINFOW* optional, out -> "void*"
# lpImeMenu : IMEMENUITEMINFOW* optional, out -> "void*"
# dwSize : 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。