NetUserDel

// NETAPI32.dll
#include <windows.h>

DWORD NetUserDel(
    LPCWSTR servername,   // optional
    LPCWSTR username
);

<DllImport("NETAPI32.dll", ExactSpelling:=True)>
Public Shared Function NetUserDel(
    <MarshalAs(UnmanagedType.LPWStr)> servername As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> username As String   ' LPCWSTR
) As UInteger
End Function

' servername : LPCWSTR optional
' username : LPCWSTR
Declare PtrSafe Function NetUserDel Lib "netapi32" ( _
    ByVal servername As LongPtr, _
    ByVal username As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

NetUserDel = ctypes.windll.netapi32.NetUserDel
NetUserDel.restype = wintypes.DWORD
NetUserDel.argtypes = [
    wintypes.LPCWSTR,  # servername : LPCWSTR optional
    wintypes.LPCWSTR,  # username : LPCWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('NETAPI32.dll')
NetUserDel = Fiddle::Function.new(
  lib['NetUserDel'],
  [
    Fiddle::TYPE_VOIDP,  # servername : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # username : LPCWSTR
  ],
  -Fiddle::TYPE_INT)

#[link(name = "netapi32")]
extern "system" {
    fn NetUserDel(
        servername: *const u16,  // LPCWSTR optional
        username: *const u16  // LPCWSTR
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("NETAPI32.dll")]
public static extern uint NetUserDel([MarshalAs(UnmanagedType.LPWStr)] string servername, [MarshalAs(UnmanagedType.LPWStr)] string username);
"@
$api = Add-Type -MemberDefinition $sig -Name 'NETAPI32_NetUserDel' -Namespace Win32 -PassThru
# $api::NetUserDel(servername, username)

#uselib "NETAPI32.dll"
#func global NetUserDel "NetUserDel" sptr, sptr
; NetUserDel servername, username   ; 戻り値は stat
; servername : LPCWSTR optional -> "sptr"
; username : LPCWSTR -> "sptr"
; ※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 "NETAPI32.dll"
#cfunc global NetUserDel "NetUserDel" wstr, wstr
; res = NetUserDel(servername, username)
; servername : LPCWSTR optional -> "wstr"
; username : LPCWSTR -> "wstr"

; DWORD NetUserDel(LPCWSTR servername, LPCWSTR username)
#uselib "NETAPI32.dll"
#cfunc global NetUserDel "NetUserDel" wstr, wstr
; res = NetUserDel(servername, username)
; servername : LPCWSTR optional -> "wstr"
; username : LPCWSTR -> "wstr"

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

var (
	netapi32 = windows.NewLazySystemDLL("NETAPI32.dll")
	procNetUserDel = netapi32.NewProc("NetUserDel")
)

// servername (LPCWSTR optional), username (LPCWSTR)
r1, _, err := procNetUserDel.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(servername))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(username))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function NetUserDel(
  servername: PWideChar;   // LPCWSTR optional
  username: PWideChar   // LPCWSTR
): DWORD; stdcall;
  external 'NETAPI32.dll' name 'NetUserDel';

result := DllCall("NETAPI32\NetUserDel"
    , "WStr", servername   ; LPCWSTR optional
    , "WStr", username   ; LPCWSTR
    , "UInt")   ; return: DWORD

●NetUserDel(servername, username) = DLL("NETAPI32.dll", "dword NetUserDel(char*, char*)")
# 呼び出し: NetUserDel(servername, username)
# servername : LPCWSTR optional -> "char*"
# username : 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)。