GETCONTEXTMENUEX

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct CHARRANGE
{
    public int cpMin;
    public int cpMax;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct POINT
{
    public int x;
    public int y;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct GETCONTEXTMENUEX
{
    public CHARRANGE chrg;
    public uint dwFlags;
    public POINT pt;
    public IntPtr pvReserved;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure CHARRANGE
    Public cpMin As Integer
    Public cpMax As Integer
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure POINT
    Public x As Integer
    Public y As Integer
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure GETCONTEXTMENUEX
    Public chrg As CHARRANGE
    Public dwFlags As UInteger
    Public pt As POINT
    Public pvReserved As IntPtr
End Structure

import ctypes
from ctypes import wintypes

class CHARRANGE(ctypes.Structure):
    _fields_ = [
        ("cpMin", ctypes.c_int),
        ("cpMax", ctypes.c_int),
    ]

class POINT(ctypes.Structure):
    _fields_ = [
        ("x", ctypes.c_int),
        ("y", ctypes.c_int),
    ]

class GETCONTEXTMENUEX(ctypes.Structure):
    _fields_ = [
        ("chrg", CHARRANGE),
        ("dwFlags", wintypes.DWORD),
        ("pt", POINT),
        ("pvReserved", ctypes.c_void_p),
    ]

#[repr(C)]
pub struct CHARRANGE {
    pub cpMin: i32,
    pub cpMax: i32,
}

#[repr(C)]
pub struct POINT {
    pub x: i32,
    pub y: i32,
}

#[repr(C)]
pub struct GETCONTEXTMENUEX {
    pub chrg: CHARRANGE,
    pub dwFlags: u32,
    pub pt: POINT,
    pub pvReserved: *mut core::ffi::c_void,
}

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

type CHARRANGE struct {
	cpMin int32
	cpMax int32
}

type POINT struct {
	x int32
	y int32
}

type GETCONTEXTMENUEX struct {
	chrg CHARRANGE
	dwFlags uint32
	pt POINT
	pvReserved uintptr
}

type
  CHARRANGE = record
    cpMin: Integer;
    cpMax: Integer;
  end;

  POINT = record
    x: Integer;
    y: Integer;
  end;

  GETCONTEXTMENUEX = record
    chrg: CHARRANGE;
    dwFlags: DWORD;
    pt: POINT;
    pvReserved: Pointer;
  end;

const CHARRANGE = extern struct {
    cpMin: i32,
    cpMax: i32,
};

const POINT = extern struct {
    x: i32,
    y: i32,
};

const GETCONTEXTMENUEX = extern struct {
    chrg: CHARRANGE,
    dwFlags: u32,
    pt: POINT,
    pvReserved: ?*anyopaque,
};

type
  CHARRANGE {.bycopy.} = object
    cpMin: int32
    cpMax: int32

  POINT {.bycopy.} = object
    x: int32
    y: int32

  GETCONTEXTMENUEX {.bycopy.} = object
    chrg: CHARRANGE
    dwFlags: uint32
    pt: POINT
    pvReserved: pointer

struct CHARRANGE
{
    int cpMin;
    int cpMax;
}

struct POINT
{
    int x;
    int y;
}

struct GETCONTEXTMENUEX
{
    CHARRANGE chrg;
    uint dwFlags;
    POINT pt;
    void* pvReserved;
}