IEC_GESTUREINFO

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct NMHDR
{
    public IntPtr hwndFrom;
    public UIntPtr idFrom;
    public uint code;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct VARIANT
{
    public _Anonymous_e__Union Anonymous;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct IEC_GESTUREINFO
{
    public NMHDR nmhdr;
    public IntPtr Cursor;
    public IntPtr Strokes;
    public VARIANT Gestures;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure NMHDR
    Public hwndFrom As IntPtr
    Public idFrom As UIntPtr
    Public code As UInteger
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure VARIANT
    Public Anonymous As _Anonymous_e__Union
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure IEC_GESTUREINFO
    Public nmhdr As NMHDR
    Public Cursor As IntPtr
    Public Strokes As IntPtr
    Public Gestures As VARIANT
End Structure

import ctypes
from ctypes import wintypes

class NMHDR(ctypes.Structure):
    _fields_ = [
        ("hwndFrom", ctypes.c_void_p),
        ("idFrom", ctypes.c_size_t),
        ("code", wintypes.DWORD),
    ]

class VARIANT(ctypes.Structure):
    _fields_ = [
        ("Anonymous", _Anonymous_e__Union),
    ]

class IEC_GESTUREINFO(ctypes.Structure):
    _fields_ = [
        ("nmhdr", NMHDR),
        ("Cursor", ctypes.c_void_p),
        ("Strokes", ctypes.c_void_p),
        ("Gestures", VARIANT),
    ]

#[repr(C)]
pub struct NMHDR {
    pub hwndFrom: *mut core::ffi::c_void,
    pub idFrom: usize,
    pub code: u32,
}

#[repr(C)]
pub struct VARIANT {
    pub Anonymous: _Anonymous_e__Union,
}

#[repr(C)]
pub struct IEC_GESTUREINFO {
    pub nmhdr: NMHDR,
    pub Cursor: *mut core::ffi::c_void,
    pub Strokes: *mut core::ffi::c_void,
    pub Gestures: VARIANT,
}

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

type NMHDR struct {
	hwndFrom uintptr
	idFrom uintptr
	code uint32
}

type VARIANT struct {
	Anonymous _Anonymous_e__Union
}

type IEC_GESTUREINFO struct {
	nmhdr NMHDR
	Cursor uintptr
	Strokes uintptr
	Gestures VARIANT
}

type
  NMHDR = record
    hwndFrom: Pointer;
    idFrom: NativeUInt;
    code: DWORD;
  end;

  VARIANT = record
    Anonymous: _Anonymous_e__Union;
  end;

  IEC_GESTUREINFO = record
    nmhdr: NMHDR;
    Cursor: Pointer;
    Strokes: Pointer;
    Gestures: VARIANT;
  end;

const NMHDR = extern struct {
    hwndFrom: ?*anyopaque,
    idFrom: usize,
    code: u32,
};

const VARIANT = extern struct {
    Anonymous: _Anonymous_e__Union,
};

const IEC_GESTUREINFO = extern struct {
    nmhdr: NMHDR,
    Cursor: ?*anyopaque,
    Strokes: ?*anyopaque,
    Gestures: VARIANT,
};

type
  NMHDR {.bycopy.} = object
    hwndFrom: pointer
    idFrom: uint
    code: uint32

  VARIANT {.bycopy.} = object
    Anonymous: _Anonymous_e__Union

  IEC_GESTUREINFO {.bycopy.} = object
    nmhdr: NMHDR
    Cursor: pointer
    Strokes: pointer
    Gestures: VARIANT

struct NMHDR
{
    void* hwndFrom;
    size_t idFrom;
    uint code;
}

struct VARIANT
{
    _Anonymous_e__Union Anonymous;
}

struct IEC_GESTUREINFO
{
    NMHDR nmhdr;
    void* Cursor;
    void* Strokes;
    VARIANT Gestures;
}