WAVEFORMATEXTENSIBLE

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, Pack = 1, CharSet = CharSet.Unicode)]
public struct WAVEFORMATEX
{
    public ushort wFormatTag;
    public ushort nChannels;
    public uint nSamplesPerSec;
    public uint nAvgBytesPerSec;
    public ushort nBlockAlign;
    public ushort wBitsPerSample;
    public ushort cbSize;
}

[StructLayout(LayoutKind.Sequential, Pack = 1, CharSet = CharSet.Unicode)]
public struct WAVEFORMATEXTENSIBLE
{
    public WAVEFORMATEX Format;
    public _Samples_e__Union Samples;
    public uint dwChannelMask;
    public Guid SubFormat;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, Pack:=1, CharSet:=CharSet.Unicode)>
Public Structure WAVEFORMATEX
    Public wFormatTag As UShort
    Public nChannels As UShort
    Public nSamplesPerSec As UInteger
    Public nAvgBytesPerSec As UInteger
    Public nBlockAlign As UShort
    Public wBitsPerSample As UShort
    Public cbSize As UShort
End Structure

<StructLayout(LayoutKind.Sequential, Pack:=1, CharSet:=CharSet.Unicode)>
Public Structure WAVEFORMATEXTENSIBLE
    Public Format As WAVEFORMATEX
    Public Samples As _Samples_e__Union
    Public dwChannelMask As UInteger
    Public SubFormat As Guid
End Structure

import ctypes
from ctypes import wintypes

class WAVEFORMATEX(ctypes.Structure):
    _pack_ = 1
    _fields_ = [
        ("wFormatTag", ctypes.c_ushort),
        ("nChannels", ctypes.c_ushort),
        ("nSamplesPerSec", wintypes.DWORD),
        ("nAvgBytesPerSec", wintypes.DWORD),
        ("nBlockAlign", ctypes.c_ushort),
        ("wBitsPerSample", ctypes.c_ushort),
        ("cbSize", ctypes.c_ushort),
    ]

class WAVEFORMATEXTENSIBLE(ctypes.Structure):
    _pack_ = 1
    _fields_ = [
        ("Format", WAVEFORMATEX),
        ("Samples", _Samples_e__Union),
        ("dwChannelMask", wintypes.DWORD),
        ("SubFormat", GUID),
    ]

#[repr(C, packed(1))]
pub struct WAVEFORMATEX {
    pub wFormatTag: u16,
    pub nChannels: u16,
    pub nSamplesPerSec: u32,
    pub nAvgBytesPerSec: u32,
    pub nBlockAlign: u16,
    pub wBitsPerSample: u16,
    pub cbSize: u16,
}

#[repr(C, packed(1))]
pub struct WAVEFORMATEXTENSIBLE {
    pub Format: WAVEFORMATEX,
    pub Samples: _Samples_e__Union,
    pub dwChannelMask: u32,
    pub SubFormat: GUID,
}

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

type WAVEFORMATEX struct {
	wFormatTag uint16
	nChannels uint16
	nSamplesPerSec uint32
	nAvgBytesPerSec uint32
	nBlockAlign uint16
	wBitsPerSample uint16
	cbSize uint16
}

type WAVEFORMATEXTENSIBLE struct {
	Format WAVEFORMATEX
	Samples _Samples_e__Union
	dwChannelMask uint32
	SubFormat windows.GUID
}

type
  WAVEFORMATEX = packed record
    wFormatTag: Word;
    nChannels: Word;
    nSamplesPerSec: DWORD;
    nAvgBytesPerSec: DWORD;
    nBlockAlign: Word;
    wBitsPerSample: Word;
    cbSize: Word;
  end;

  WAVEFORMATEXTENSIBLE = packed record
    Format: WAVEFORMATEX;
    Samples: _Samples_e__Union;
    dwChannelMask: DWORD;
    SubFormat: TGUID;
  end;

const WAVEFORMATEX = extern struct {
    wFormatTag: u16,
    nChannels: u16,
    nSamplesPerSec: u32,
    nAvgBytesPerSec: u32,
    nBlockAlign: u16,
    wBitsPerSample: u16,
    cbSize: u16,
};

const WAVEFORMATEXTENSIBLE = extern struct {
    Format: WAVEFORMATEX,
    Samples: _Samples_e__Union,
    dwChannelMask: u32,
    SubFormat: GUID,
};

type
  WAVEFORMATEX {.packed.} = object
    wFormatTag: uint16
    nChannels: uint16
    nSamplesPerSec: uint32
    nAvgBytesPerSec: uint32
    nBlockAlign: uint16
    wBitsPerSample: uint16
    cbSize: uint16

  WAVEFORMATEXTENSIBLE {.packed.} = object
    Format: WAVEFORMATEX
    Samples: _Samples_e__Union
    dwChannelMask: uint32
    SubFormat: GUID

align(1)
struct WAVEFORMATEX
{
    ushort wFormatTag;
    ushort nChannels;
    uint nSamplesPerSec;
    uint nAvgBytesPerSec;
    ushort nBlockAlign;
    ushort wBitsPerSample;
    ushort cbSize;
}

align(1)
struct WAVEFORMATEXTENSIBLE
{
    WAVEFORMATEX Format;
    _Samples_e__Union Samples;
    uint dwChannelMask;
    GUID SubFormat;
}