STGMEDIUM

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct STGMEDIUM
{
    public uint tymed;
    public _u_e__Union u;
    public IntPtr pUnkForRelease;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure STGMEDIUM
    Public tymed As UInteger
    Public u As _u_e__Union
    Public pUnkForRelease As IntPtr
End Structure

import ctypes
from ctypes import wintypes

class STGMEDIUM(ctypes.Structure):
    _fields_ = [
        ("tymed", wintypes.DWORD),
        ("u", _u_e__Union),
        ("pUnkForRelease", ctypes.c_void_p),
    ]

#[repr(C)]
pub struct STGMEDIUM {
    pub tymed: u32,
    pub u: _u_e__Union,
    pub pUnkForRelease: *mut core::ffi::c_void,
}

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

type STGMEDIUM struct {
	tymed uint32
	u _u_e__Union
	pUnkForRelease uintptr
}

type
  STGMEDIUM = record
    tymed: DWORD;
    u: _u_e__Union;
    pUnkForRelease: Pointer;
  end;

const STGMEDIUM = extern struct {
    tymed: u32,
    u: _u_e__Union,
    pUnkForRelease: ?*anyopaque,
};

type
  STGMEDIUM {.bycopy.} = object
    tymed: uint32
    u: _u_e__Union
    pUnkForRelease: pointer

struct STGMEDIUM
{
    uint tymed;
    _u_e__Union u;
    void* pUnkForRelease;
}