SetIScsiIKEInfoW

// ISCSIDSC.dll  (Unicode / -W)
#include <windows.h>

DWORD SetIScsiIKEInfoW(
    LPWSTR InitiatorName,   // optional
    DWORD InitiatorPortNumber,
    IKE_AUTHENTICATION_INFORMATION* AuthInfo,
    BOOLEAN Persist
);

<DllImport("ISCSIDSC.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function SetIScsiIKEInfoW(
    <MarshalAs(UnmanagedType.LPWStr)> InitiatorName As String,   ' LPWSTR optional
    InitiatorPortNumber As UInteger,   ' DWORD
    AuthInfo As IntPtr,   ' IKE_AUTHENTICATION_INFORMATION* in/out
    <MarshalAs(UnmanagedType.U1)> Persist As Boolean   ' BOOLEAN
) As UInteger
End Function

' InitiatorName : LPWSTR optional
' InitiatorPortNumber : DWORD
' AuthInfo : IKE_AUTHENTICATION_INFORMATION* in/out
' Persist : BOOLEAN
Declare PtrSafe Function SetIScsiIKEInfoW Lib "iscsidsc" ( _
    ByVal InitiatorName As LongPtr, _
    ByVal InitiatorPortNumber As Long, _
    ByVal AuthInfo As LongPtr, _
    ByVal Persist As Byte) 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

SetIScsiIKEInfoW = ctypes.windll.iscsidsc.SetIScsiIKEInfoW
SetIScsiIKEInfoW.restype = wintypes.DWORD
SetIScsiIKEInfoW.argtypes = [
    wintypes.LPCWSTR,  # InitiatorName : LPWSTR optional
    wintypes.DWORD,  # InitiatorPortNumber : DWORD
    ctypes.c_void_p,  # AuthInfo : IKE_AUTHENTICATION_INFORMATION* in/out
    ctypes.c_byte,  # Persist : BOOLEAN
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ISCSIDSC.dll')
SetIScsiIKEInfoW = Fiddle::Function.new(
  lib['SetIScsiIKEInfoW'],
  [
    Fiddle::TYPE_VOIDP,  # InitiatorName : LPWSTR optional
    -Fiddle::TYPE_INT,  # InitiatorPortNumber : DWORD
    Fiddle::TYPE_VOIDP,  # AuthInfo : IKE_AUTHENTICATION_INFORMATION* in/out
    Fiddle::TYPE_CHAR,  # Persist : BOOLEAN
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "iscsidsc")]
extern "system" {
    fn SetIScsiIKEInfoW(
        InitiatorName: *mut u16,  // LPWSTR optional
        InitiatorPortNumber: u32,  // DWORD
        AuthInfo: *mut IKE_AUTHENTICATION_INFORMATION,  // IKE_AUTHENTICATION_INFORMATION* in/out
        Persist: u8  // BOOLEAN
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ISCSIDSC.dll", CharSet = CharSet.Unicode)]
public static extern uint SetIScsiIKEInfoW([MarshalAs(UnmanagedType.LPWStr)] string InitiatorName, uint InitiatorPortNumber, IntPtr AuthInfo, [MarshalAs(UnmanagedType.U1)] bool Persist);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ISCSIDSC_SetIScsiIKEInfoW' -Namespace Win32 -PassThru
# $api::SetIScsiIKEInfoW(InitiatorName, InitiatorPortNumber, AuthInfo, Persist)

#uselib "ISCSIDSC.dll"
#func global SetIScsiIKEInfoW "SetIScsiIKEInfoW" wptr, wptr, wptr, wptr
; SetIScsiIKEInfoW InitiatorName, InitiatorPortNumber, varptr(AuthInfo), Persist   ; 戻り値は stat
; InitiatorName : LPWSTR optional -> "wptr"
; InitiatorPortNumber : DWORD -> "wptr"
; AuthInfo : IKE_AUTHENTICATION_INFORMATION* in/out -> "wptr"
; Persist : BOOLEAN -> "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 "ISCSIDSC.dll"
#cfunc global SetIScsiIKEInfoW "SetIScsiIKEInfoW" wstr, int, var, int
; res = SetIScsiIKEInfoW(InitiatorName, InitiatorPortNumber, AuthInfo, Persist)
; InitiatorName : LPWSTR optional -> "wstr"
; InitiatorPortNumber : DWORD -> "int"
; AuthInfo : IKE_AUTHENTICATION_INFORMATION* in/out -> "var"
; Persist : BOOLEAN -> "int"
; ※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。

; DWORD SetIScsiIKEInfoW(LPWSTR InitiatorName, DWORD InitiatorPortNumber, IKE_AUTHENTICATION_INFORMATION* AuthInfo, BOOLEAN Persist)
#uselib "ISCSIDSC.dll"
#cfunc global SetIScsiIKEInfoW "SetIScsiIKEInfoW" wstr, int, var, int
; res = SetIScsiIKEInfoW(InitiatorName, InitiatorPortNumber, AuthInfo, Persist)
; InitiatorName : LPWSTR optional -> "wstr"
; InitiatorPortNumber : DWORD -> "int"
; AuthInfo : IKE_AUTHENTICATION_INFORMATION* in/out -> "var"
; Persist : BOOLEAN -> "int"
; ※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 (
	iscsidsc = windows.NewLazySystemDLL("ISCSIDSC.dll")
	procSetIScsiIKEInfoW = iscsidsc.NewProc("SetIScsiIKEInfoW")
)

// InitiatorName (LPWSTR optional), InitiatorPortNumber (DWORD), AuthInfo (IKE_AUTHENTICATION_INFORMATION* in/out), Persist (BOOLEAN)
r1, _, err := procSetIScsiIKEInfoW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(InitiatorName))),
	uintptr(InitiatorPortNumber),
	uintptr(AuthInfo),
	uintptr(Persist),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function SetIScsiIKEInfoW(
  InitiatorName: PWideChar;   // LPWSTR optional
  InitiatorPortNumber: DWORD;   // DWORD
  AuthInfo: Pointer;   // IKE_AUTHENTICATION_INFORMATION* in/out
  Persist: ByteBool   // BOOLEAN
): DWORD; stdcall;
  external 'ISCSIDSC.dll' name 'SetIScsiIKEInfoW';

result := DllCall("ISCSIDSC\SetIScsiIKEInfoW"
    , "WStr", InitiatorName   ; LPWSTR optional
    , "UInt", InitiatorPortNumber   ; DWORD
    , "Ptr", AuthInfo   ; IKE_AUTHENTICATION_INFORMATION* in/out
    , "Char", Persist   ; BOOLEAN
    , "UInt")   ; return: DWORD

●SetIScsiIKEInfoW(InitiatorName, InitiatorPortNumber, AuthInfo, Persist) = DLL("ISCSIDSC.dll", "dword SetIScsiIKEInfoW(char*, dword, void*, byte)")
# 呼び出し: SetIScsiIKEInfoW(InitiatorName, InitiatorPortNumber, AuthInfo, Persist)
# InitiatorName : LPWSTR optional -> "char*"
# InitiatorPortNumber : DWORD -> "dword"
# AuthInfo : IKE_AUTHENTICATION_INFORMATION* in/out -> "void*"
# Persist : BOOLEAN -> "byte"
# 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。