VFW_FILTERLIST

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct VFW_FILTERLIST
{
    public uint cFilters;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public Guid[] aClsId;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure VFW_FILTERLIST
    Public cFilters As UInteger
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=1)> Public aClsId() As Guid
End Structure

import ctypes
from ctypes import wintypes

class VFW_FILTERLIST(ctypes.Structure):
    _fields_ = [
        ("cFilters", wintypes.DWORD),
        ("aClsId", GUID * 1),
    ]

#[repr(C)]
pub struct VFW_FILTERLIST {
    pub cFilters: u32,
    pub aClsId: [GUID; 1],
}

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

type VFW_FILTERLIST struct {
	cFilters uint32
	aClsId [1]windows.GUID
}

type
  VFW_FILTERLIST = record
    cFilters: DWORD;
    aClsId: array[0..0] of TGUID;
  end;

const VFW_FILTERLIST = extern struct {
    cFilters: u32,
    aClsId: [1]GUID,
};

type
  VFW_FILTERLIST {.bycopy.} = object
    cFilters: uint32
    aClsId: array[1, GUID]

struct VFW_FILTERLIST
{
    uint cFilters;
    GUID[1] aClsId;
}