DeletePortW

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

BOOL DeletePortW(
    LPCWSTR pName,   // optional
    HWND hWnd,
    LPCWSTR pPortName
);

<DllImport("winspool.drv", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function DeletePortW(
    <MarshalAs(UnmanagedType.LPWStr)> pName As String,   ' LPCWSTR optional
    hWnd As IntPtr,   ' HWND
    <MarshalAs(UnmanagedType.LPWStr)> pPortName As String   ' LPCWSTR
) As Boolean
End Function

' pName : LPCWSTR optional
' hWnd : HWND
' pPortName : LPCWSTR
Declare PtrSafe Function DeletePortW Lib "winspool.drv" ( _
    ByVal pName As LongPtr, _
    ByVal hWnd As LongPtr, _
    ByVal pPortName 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

DeletePortW = ctypes.windll.LoadLibrary("winspool.drv").DeletePortW
DeletePortW.restype = wintypes.BOOL
DeletePortW.argtypes = [
    wintypes.LPCWSTR,  # pName : LPCWSTR optional
    wintypes.HANDLE,  # hWnd : HWND
    wintypes.LPCWSTR,  # pPortName : LPCWSTR
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('winspool.drv')
DeletePortW = Fiddle::Function.new(
  lib['DeletePortW'],
  [
    Fiddle::TYPE_VOIDP,  # pName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # hWnd : HWND
    Fiddle::TYPE_VOIDP,  # pPortName : LPCWSTR
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "winspool.drv")]
extern "system" {
    fn DeletePortW(
        pName: *const u16,  // LPCWSTR optional
        hWnd: *mut core::ffi::c_void,  // HWND
        pPortName: *const u16  // LPCWSTR
    ) -> 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 DeletePortW([MarshalAs(UnmanagedType.LPWStr)] string pName, IntPtr hWnd, [MarshalAs(UnmanagedType.LPWStr)] string pPortName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'winspool.drv_DeletePortW' -Namespace Win32 -PassThru
# $api::DeletePortW(pName, hWnd, pPortName)

#uselib "winspool.drv"
#func global DeletePortW "DeletePortW" wptr, wptr, wptr
; DeletePortW pName, hWnd, pPortName   ; 戻り値は stat
; pName : LPCWSTR optional -> "wptr"
; hWnd : HWND -> "wptr"
; pPortName : LPCWSTR -> "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 DeletePortW "DeletePortW" wstr, sptr, wstr
; res = DeletePortW(pName, hWnd, pPortName)
; pName : LPCWSTR optional -> "wstr"
; hWnd : HWND -> "sptr"
; pPortName : LPCWSTR -> "wstr"

; BOOL DeletePortW(LPCWSTR pName, HWND hWnd, LPCWSTR pPortName)
#uselib "winspool.drv"
#cfunc global DeletePortW "DeletePortW" wstr, intptr, wstr
; res = DeletePortW(pName, hWnd, pPortName)
; pName : LPCWSTR optional -> "wstr"
; hWnd : HWND -> "intptr"
; pPortName : LPCWSTR -> "wstr"

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

var (
	winspool_drv = windows.NewLazySystemDLL("winspool.drv")
	procDeletePortW = winspool_drv.NewProc("DeletePortW")
)

// pName (LPCWSTR optional), hWnd (HWND), pPortName (LPCWSTR)
r1, _, err := procDeletePortW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pName))),
	uintptr(hWnd),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pPortName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DeletePortW(
  pName: PWideChar;   // LPCWSTR optional
  hWnd: THandle;   // HWND
  pPortName: PWideChar   // LPCWSTR
): BOOL; stdcall;
  external 'winspool.drv' name 'DeletePortW';

result := DllCall("winspool.drv\DeletePortW"
    , "WStr", pName   ; LPCWSTR optional
    , "Ptr", hWnd   ; HWND
    , "WStr", pPortName   ; LPCWSTR
    , "Int")   ; return: BOOL

●DeletePortW(pName, hWnd, pPortName) = DLL("winspool.drv", "bool DeletePortW(char*, void*, char*)")
# 呼び出し: DeletePortW(pName, hWnd, pPortName)
# pName : LPCWSTR optional -> "char*"
# hWnd : HWND -> "void*"
# pPortName : LPCWSTR -> "char*"
# 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。