SetNetworkInformation

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

WIN32_ERROR SetNetworkInformation(
    const GUID* NetworkGuid,
    NET_IF_COMPARTMENT_ID CompartmentId,
    LPCWSTR NetworkName
);

<DllImport("IPHLPAPI.dll", ExactSpelling:=True)>
Public Shared Function SetNetworkInformation(
    ByRef NetworkGuid As Guid,   ' GUID*
    CompartmentId As UInteger,   ' NET_IF_COMPARTMENT_ID
    <MarshalAs(UnmanagedType.LPWStr)> NetworkName As String   ' LPCWSTR
) As UInteger
End Function

' NetworkGuid : GUID*
' CompartmentId : NET_IF_COMPARTMENT_ID
' NetworkName : LPCWSTR
Declare PtrSafe Function SetNetworkInformation Lib "iphlpapi" ( _
    ByVal NetworkGuid As LongPtr, _
    ByVal CompartmentId As Long, _
    ByVal NetworkName 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

SetNetworkInformation = ctypes.windll.iphlpapi.SetNetworkInformation
SetNetworkInformation.restype = wintypes.DWORD
SetNetworkInformation.argtypes = [
    ctypes.c_void_p,  # NetworkGuid : GUID*
    wintypes.DWORD,  # CompartmentId : NET_IF_COMPARTMENT_ID
    wintypes.LPCWSTR,  # NetworkName : LPCWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('IPHLPAPI.dll')
SetNetworkInformation = Fiddle::Function.new(
  lib['SetNetworkInformation'],
  [
    Fiddle::TYPE_VOIDP,  # NetworkGuid : GUID*
    -Fiddle::TYPE_INT,  # CompartmentId : NET_IF_COMPARTMENT_ID
    Fiddle::TYPE_VOIDP,  # NetworkName : LPCWSTR
  ],
  -Fiddle::TYPE_INT)

#[link(name = "iphlpapi")]
extern "system" {
    fn SetNetworkInformation(
        NetworkGuid: *const GUID,  // GUID*
        CompartmentId: u32,  // NET_IF_COMPARTMENT_ID
        NetworkName: *const u16  // LPCWSTR
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("IPHLPAPI.dll")]
public static extern uint SetNetworkInformation(ref Guid NetworkGuid, uint CompartmentId, [MarshalAs(UnmanagedType.LPWStr)] string NetworkName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'IPHLPAPI_SetNetworkInformation' -Namespace Win32 -PassThru
# $api::SetNetworkInformation(NetworkGuid, CompartmentId, NetworkName)

#uselib "IPHLPAPI.dll"
#func global SetNetworkInformation "SetNetworkInformation" sptr, sptr, sptr
; SetNetworkInformation varptr(NetworkGuid), CompartmentId, NetworkName   ; 戻り値は stat
; NetworkGuid : GUID* -> "sptr"
; CompartmentId : NET_IF_COMPARTMENT_ID -> "sptr"
; NetworkName : 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 "IPHLPAPI.dll"
#cfunc global SetNetworkInformation "SetNetworkInformation" var, int, wstr
; res = SetNetworkInformation(NetworkGuid, CompartmentId, NetworkName)
; NetworkGuid : GUID* -> "var"
; CompartmentId : NET_IF_COMPARTMENT_ID -> "int"
; NetworkName : LPCWSTR -> "wstr"
; ※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。

; WIN32_ERROR SetNetworkInformation(GUID* NetworkGuid, NET_IF_COMPARTMENT_ID CompartmentId, LPCWSTR NetworkName)
#uselib "IPHLPAPI.dll"
#cfunc global SetNetworkInformation "SetNetworkInformation" var, int, wstr
; res = SetNetworkInformation(NetworkGuid, CompartmentId, NetworkName)
; NetworkGuid : GUID* -> "var"
; CompartmentId : NET_IF_COMPARTMENT_ID -> "int"
; NetworkName : LPCWSTR -> "wstr"
; ※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 (
	iphlpapi = windows.NewLazySystemDLL("IPHLPAPI.dll")
	procSetNetworkInformation = iphlpapi.NewProc("SetNetworkInformation")
)

// NetworkGuid (GUID*), CompartmentId (NET_IF_COMPARTMENT_ID), NetworkName (LPCWSTR)
r1, _, err := procSetNetworkInformation.Call(
	uintptr(NetworkGuid),
	uintptr(CompartmentId),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(NetworkName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function SetNetworkInformation(
  NetworkGuid: PGUID;   // GUID*
  CompartmentId: DWORD;   // NET_IF_COMPARTMENT_ID
  NetworkName: PWideChar   // LPCWSTR
): DWORD; stdcall;
  external 'IPHLPAPI.dll' name 'SetNetworkInformation';

result := DllCall("IPHLPAPI\SetNetworkInformation"
    , "Ptr", NetworkGuid   ; GUID*
    , "UInt", CompartmentId   ; NET_IF_COMPARTMENT_ID
    , "WStr", NetworkName   ; LPCWSTR
    , "UInt")   ; return: WIN32_ERROR

●SetNetworkInformation(NetworkGuid, CompartmentId, NetworkName) = DLL("IPHLPAPI.dll", "dword SetNetworkInformation(void*, dword, char*)")
# 呼び出し: SetNetworkInformation(NetworkGuid, CompartmentId, NetworkName)
# NetworkGuid : GUID* -> "void*"
# CompartmentId : NET_IF_COMPARTMENT_ID -> "dword"
# NetworkName : 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)。