RTL_USER_PROCESS_PARAMETERS

using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct UNICODE_STRING
{
    public ushort Length;
    public ushort MaximumLength;
    public IntPtr Buffer;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct RTL_USER_PROCESS_PARAMETERS
{
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)] public byte[] Reserved1;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 10)] public IntPtr[] Reserved2;
    public UNICODE_STRING ImagePathName;
    public UNICODE_STRING CommandLine;
}

Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure UNICODE_STRING
    Public Length As UShort
    Public MaximumLength As UShort
    Public Buffer As IntPtr
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure RTL_USER_PROCESS_PARAMETERS
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=16)> Public Reserved1() As Byte
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=10)> Public Reserved2() As IntPtr
    Public ImagePathName As UNICODE_STRING
    Public CommandLine As UNICODE_STRING
End Structure

import ctypes
from ctypes import wintypes

class UNICODE_STRING(ctypes.Structure):
    _fields_ = [
        ("Length", ctypes.c_ushort),
        ("MaximumLength", ctypes.c_ushort),
        ("Buffer", ctypes.c_void_p),
    ]

class RTL_USER_PROCESS_PARAMETERS(ctypes.Structure):
    _fields_ = [
        ("Reserved1", ctypes.c_ubyte * 16),
        ("Reserved2", ctypes.c_void_p * 10),
        ("ImagePathName", UNICODE_STRING),
        ("CommandLine", UNICODE_STRING),
    ]

#[repr(C)]
pub struct UNICODE_STRING {
    pub Length: u16,
    pub MaximumLength: u16,
    pub Buffer: *mut core::ffi::c_void,
}

#[repr(C)]
pub struct RTL_USER_PROCESS_PARAMETERS {
    pub Reserved1: [u8; 16],
    pub Reserved2: [*mut core::ffi::c_void; 10],
    pub ImagePathName: UNICODE_STRING,
    pub CommandLine: UNICODE_STRING,
}

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

type UNICODE_STRING struct {
	Length uint16
	MaximumLength uint16
	Buffer uintptr
}

type RTL_USER_PROCESS_PARAMETERS struct {
	Reserved1 [16]byte
	Reserved2 [10]uintptr
	ImagePathName UNICODE_STRING
	CommandLine UNICODE_STRING
}

type
  UNICODE_STRING = record
    Length: Word;
    MaximumLength: Word;
    Buffer: Pointer;
  end;

  RTL_USER_PROCESS_PARAMETERS = record
    Reserved1: array[0..15] of Byte;
    Reserved2: array[0..9] of Pointer;
    ImagePathName: UNICODE_STRING;
    CommandLine: UNICODE_STRING;
  end;

const UNICODE_STRING = extern struct {
    Length: u16,
    MaximumLength: u16,
    Buffer: ?*anyopaque,
};

const RTL_USER_PROCESS_PARAMETERS = extern struct {
    Reserved1: [16]u8,
    Reserved2: [10]?*anyopaque,
    ImagePathName: UNICODE_STRING,
    CommandLine: UNICODE_STRING,
};

type
  UNICODE_STRING {.bycopy.} = object
    Length: uint16
    MaximumLength: uint16
    Buffer: pointer

  RTL_USER_PROCESS_PARAMETERS {.bycopy.} = object
    Reserved1: array[16, uint8]
    Reserved2: array[10, pointer]
    ImagePathName: UNICODE_STRING
    CommandLine: UNICODE_STRING

struct UNICODE_STRING
{
    ushort Length;
    ushort MaximumLength;
    void* Buffer;
}

struct RTL_USER_PROCESS_PARAMETERS
{
    ubyte[16] Reserved1;
    void*[10] Reserved2;
    UNICODE_STRING ImagePathName;
    UNICODE_STRING CommandLine;
}