MFP_RATE_SET_EVENT

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct MFP_EVENT_HEADER
{
    public int eEventType;
    public int hrEvent;
    public IntPtr pMediaPlayer;
    public int eState;
    public IntPtr pPropertyStore;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct MFP_RATE_SET_EVENT
{
    public MFP_EVENT_HEADER header;
    public IntPtr pMediaItem;
    public float flRate;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure MFP_EVENT_HEADER
    Public eEventType As Integer
    Public hrEvent As Integer
    Public pMediaPlayer As IntPtr
    Public eState As Integer
    Public pPropertyStore As IntPtr
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure MFP_RATE_SET_EVENT
    Public header As MFP_EVENT_HEADER
    Public pMediaItem As IntPtr
    Public flRate As Single
End Structure

import ctypes
from ctypes import wintypes

class MFP_EVENT_HEADER(ctypes.Structure):
    _fields_ = [
        ("eEventType", ctypes.c_int),
        ("hrEvent", ctypes.c_int),
        ("pMediaPlayer", ctypes.c_void_p),
        ("eState", ctypes.c_int),
        ("pPropertyStore", ctypes.c_void_p),
    ]

class MFP_RATE_SET_EVENT(ctypes.Structure):
    _fields_ = [
        ("header", MFP_EVENT_HEADER),
        ("pMediaItem", ctypes.c_void_p),
        ("flRate", ctypes.c_float),
    ]

#[repr(C)]
pub struct MFP_EVENT_HEADER {
    pub eEventType: i32,
    pub hrEvent: i32,
    pub pMediaPlayer: *mut core::ffi::c_void,
    pub eState: i32,
    pub pPropertyStore: *mut core::ffi::c_void,
}

#[repr(C)]
pub struct MFP_RATE_SET_EVENT {
    pub header: MFP_EVENT_HEADER,
    pub pMediaItem: *mut core::ffi::c_void,
    pub flRate: f32,
}

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

type MFP_EVENT_HEADER struct {
	eEventType int32
	hrEvent int32
	pMediaPlayer uintptr
	eState int32
	pPropertyStore uintptr
}

type MFP_RATE_SET_EVENT struct {
	header MFP_EVENT_HEADER
	pMediaItem uintptr
	flRate float32
}

type
  MFP_EVENT_HEADER = record
    eEventType: Integer;
    hrEvent: Integer;
    pMediaPlayer: Pointer;
    eState: Integer;
    pPropertyStore: Pointer;
  end;

  MFP_RATE_SET_EVENT = record
    header: MFP_EVENT_HEADER;
    pMediaItem: Pointer;
    flRate: Single;
  end;

const MFP_EVENT_HEADER = extern struct {
    eEventType: i32,
    hrEvent: i32,
    pMediaPlayer: ?*anyopaque,
    eState: i32,
    pPropertyStore: ?*anyopaque,
};

const MFP_RATE_SET_EVENT = extern struct {
    header: MFP_EVENT_HEADER,
    pMediaItem: ?*anyopaque,
    flRate: f32,
};

type
  MFP_EVENT_HEADER {.bycopy.} = object
    eEventType: int32
    hrEvent: int32
    pMediaPlayer: pointer
    eState: int32
    pPropertyStore: pointer

  MFP_RATE_SET_EVENT {.bycopy.} = object
    header: MFP_EVENT_HEADER
    pMediaItem: pointer
    flRate: float32

struct MFP_EVENT_HEADER
{
    int eEventType;
    int hrEvent;
    void* pMediaPlayer;
    int eState;
    void* pPropertyStore;
}

struct MFP_RATE_SET_EVENT
{
    MFP_EVENT_HEADER header;
    void* pMediaItem;
    float flRate;
}