SetPortW

// winspool.drv  (Unicode / -W)
#include <windows.h>

BOOL SetPortW(
    LPWSTR pName,   // optional
    LPWSTR pPortName,
    DWORD dwLevel,
    BYTE* pPortInfo
);

<DllImport("winspool.drv", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function SetPortW(
    <MarshalAs(UnmanagedType.LPWStr)> pName As String,   ' LPWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> pPortName As String,   ' LPWSTR
    dwLevel As UInteger,   ' DWORD
    pPortInfo As IntPtr   ' BYTE*
) As Boolean
End Function

' pName : LPWSTR optional
' pPortName : LPWSTR
' dwLevel : DWORD
' pPortInfo : BYTE*
Declare PtrSafe Function SetPortW Lib "winspool.drv" ( _
    ByVal pName As LongPtr, _
    ByVal pPortName As LongPtr, _
    ByVal dwLevel As Long, _
    ByVal pPortInfo As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

SetPortW = ctypes.windll.LoadLibrary("winspool.drv").SetPortW
SetPortW.restype = wintypes.BOOL
SetPortW.argtypes = [
    wintypes.LPCWSTR,  # pName : LPWSTR optional
    wintypes.LPCWSTR,  # pPortName : LPWSTR
    wintypes.DWORD,  # dwLevel : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pPortInfo : BYTE*
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
SetPortW = Fiddle::Function.new(
  lib['SetPortW'],
  [
    Fiddle::TYPE_VOIDP,  # pName : LPWSTR optional
    Fiddle::TYPE_VOIDP,  # pPortName : LPWSTR
    -Fiddle::TYPE_INT,  # dwLevel : DWORD
    Fiddle::TYPE_VOIDP,  # pPortInfo : BYTE*
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "winspool.drv")]
extern "system" {
    fn SetPortW(
        pName: *mut u16,  // LPWSTR optional
        pPortName: *mut u16,  // LPWSTR
        dwLevel: u32,  // DWORD
        pPortInfo: *mut u8  // BYTE*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("winspool.drv", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool SetPortW([MarshalAs(UnmanagedType.LPWStr)] string pName, [MarshalAs(UnmanagedType.LPWStr)] string pPortName, uint dwLevel, IntPtr pPortInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_SetPortW' -Namespace Win32 -PassThru
# $api::SetPortW(pName, pPortName, dwLevel, pPortInfo)

#uselib "winspool.drv"
#func global SetPortW "SetPortW" wptr, wptr, wptr, wptr
; SetPortW pName, pPortName, dwLevel, varptr(pPortInfo)   ; 戻り値は stat
; pName : LPWSTR optional -> "wptr"
; pPortName : LPWSTR -> "wptr"
; dwLevel : DWORD -> "wptr"
; pPortInfo : BYTE* -> "wptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "winspool.drv"
#cfunc global SetPortW "SetPortW" wstr, wstr, int, var
; res = SetPortW(pName, pPortName, dwLevel, pPortInfo)
; pName : LPWSTR optional -> "wstr"
; pPortName : LPWSTR -> "wstr"
; dwLevel : DWORD -> "int"
; pPortInfo : BYTE* -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; BOOL SetPortW(LPWSTR pName, LPWSTR pPortName, DWORD dwLevel, BYTE* pPortInfo)
#uselib "winspool.drv"
#cfunc global SetPortW "SetPortW" wstr, wstr, int, var
; res = SetPortW(pName, pPortName, dwLevel, pPortInfo)
; pName : LPWSTR optional -> "wstr"
; pPortName : LPWSTR -> "wstr"
; dwLevel : DWORD -> "int"
; pPortInfo : BYTE* -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procSetPortW = winspool_drv.NewProc("SetPortW")
)

// pName (LPWSTR optional), pPortName (LPWSTR), dwLevel (DWORD), pPortInfo (BYTE*)
r1, _, err := procSetPortW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pPortName))),
	uintptr(dwLevel),
	uintptr(pPortInfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function SetPortW(
  pName: PWideChar;   // LPWSTR optional
  pPortName: PWideChar;   // LPWSTR
  dwLevel: DWORD;   // DWORD
  pPortInfo: Pointer   // BYTE*
): BOOL; stdcall;
  external 'winspool.drv' name 'SetPortW';

result := DllCall("winspool.drv\SetPortW"
    , "WStr", pName   ; LPWSTR optional
    , "WStr", pPortName   ; LPWSTR
    , "UInt", dwLevel   ; DWORD
    , "Ptr", pPortInfo   ; BYTE*
    , "Int")   ; return: BOOL

●SetPortW(pName, pPortName, dwLevel, pPortInfo) = DLL("winspool.drv", "bool SetPortW(char*, char*, dword, void*)")
# 呼び出し: SetPortW(pName, pPortName, dwLevel, pPortInfo)
# pName : LPWSTR optional -> "char*"
# pPortName : LPWSTR -> "char*"
# dwLevel : DWORD -> "dword"
# pPortInfo : BYTE* -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。