IMEITEMCANDIDATE

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct IMEITEM
{
    public int cbSize;
    public int iType;
    public IntPtr lpItemData;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct IMEITEMCANDIDATE
{
    public uint uCount;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public IMEITEM[] imeItem;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure IMEITEM
    Public cbSize As Integer
    Public iType As Integer
    Public lpItemData As IntPtr
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure IMEITEMCANDIDATE
    Public uCount As UInteger
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=1)> Public imeItem() As IMEITEM
End Structure

import ctypes
from ctypes import wintypes

class IMEITEM(ctypes.Structure):
    _fields_ = [
        ("cbSize", ctypes.c_int),
        ("iType", ctypes.c_int),
        ("lpItemData", ctypes.c_void_p),
    ]

class IMEITEMCANDIDATE(ctypes.Structure):
    _fields_ = [
        ("uCount", wintypes.DWORD),
        ("imeItem", IMEITEM * 1),
    ]

#[repr(C)]
pub struct IMEITEM {
    pub cbSize: i32,
    pub iType: i32,
    pub lpItemData: *mut core::ffi::c_void,
}

#[repr(C)]
pub struct IMEITEMCANDIDATE {
    pub uCount: u32,
    pub imeItem: [IMEITEM; 1],
}

import "golang.org/x/sys/windows"

type IMEITEM struct {
	cbSize int32
	iType int32
	lpItemData uintptr
}

type IMEITEMCANDIDATE struct {
	uCount uint32
	imeItem [1]IMEITEM
}

type
  IMEITEM = record
    cbSize: Integer;
    iType: Integer;
    lpItemData: Pointer;
  end;

  IMEITEMCANDIDATE = record
    uCount: DWORD;
    imeItem: array[0..0] of IMEITEM;
  end;

const IMEITEM = extern struct {
    cbSize: i32,
    iType: i32,
    lpItemData: ?*anyopaque,
};

const IMEITEMCANDIDATE = extern struct {
    uCount: u32,
    imeItem: [1]IMEITEM,
};

type
  IMEITEM {.bycopy.} = object
    cbSize: int32
    iType: int32
    lpItemData: pointer

  IMEITEMCANDIDATE {.bycopy.} = object
    uCount: uint32
    imeItem: array[1, IMEITEM]

struct IMEITEM
{
    int cbSize;
    int iType;
    void* lpItemData;
}

struct IMEITEMCANDIDATE
{
    uint uCount;
    IMEITEM[1] imeItem;
}