RGNHEADER

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct RGNRANGE
{
    public ushort usLow;
    public ushort usHigh;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct RGNHEADER
{
    public RGNRANGE RangeKey;
    public RGNRANGE RangeVelocity;
    public ushort fusOptions;
    public ushort usKeyGroup;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure RGNRANGE
    Public usLow As UShort
    Public usHigh As UShort
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure RGNHEADER
    Public RangeKey As RGNRANGE
    Public RangeVelocity As RGNRANGE
    Public fusOptions As UShort
    Public usKeyGroup As UShort
End Structure

import ctypes
from ctypes import wintypes

class RGNRANGE(ctypes.Structure):
    _fields_ = [
        ("usLow", ctypes.c_ushort),
        ("usHigh", ctypes.c_ushort),
    ]

class RGNHEADER(ctypes.Structure):
    _fields_ = [
        ("RangeKey", RGNRANGE),
        ("RangeVelocity", RGNRANGE),
        ("fusOptions", ctypes.c_ushort),
        ("usKeyGroup", ctypes.c_ushort),
    ]

#[repr(C)]
pub struct RGNRANGE {
    pub usLow: u16,
    pub usHigh: u16,
}

#[repr(C)]
pub struct RGNHEADER {
    pub RangeKey: RGNRANGE,
    pub RangeVelocity: RGNRANGE,
    pub fusOptions: u16,
    pub usKeyGroup: u16,
}

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

type RGNRANGE struct {
	usLow uint16
	usHigh uint16
}

type RGNHEADER struct {
	RangeKey RGNRANGE
	RangeVelocity RGNRANGE
	fusOptions uint16
	usKeyGroup uint16
}

type
  RGNRANGE = record
    usLow: Word;
    usHigh: Word;
  end;

  RGNHEADER = record
    RangeKey: RGNRANGE;
    RangeVelocity: RGNRANGE;
    fusOptions: Word;
    usKeyGroup: Word;
  end;

const RGNRANGE = extern struct {
    usLow: u16,
    usHigh: u16,
};

const RGNHEADER = extern struct {
    RangeKey: RGNRANGE,
    RangeVelocity: RGNRANGE,
    fusOptions: u16,
    usKeyGroup: u16,
};

type
  RGNRANGE {.bycopy.} = object
    usLow: uint16
    usHigh: uint16

  RGNHEADER {.bycopy.} = object
    RangeKey: RGNRANGE
    RangeVelocity: RGNRANGE
    fusOptions: uint16
    usKeyGroup: uint16

struct RGNRANGE
{
    ushort usLow;
    ushort usHigh;
}

struct RGNHEADER
{
    RGNRANGE RangeKey;
    RGNRANGE RangeVelocity;
    ushort fusOptions;
    ushort usKeyGroup;
}