ConvertInterfaceLuidToNameA

// IPHLPAPI.dll  (ANSI / -A)
#include <windows.h>

WIN32_ERROR ConvertInterfaceLuidToNameA(
    const NET_LUID_LH* InterfaceLuid,
    LPSTR InterfaceName,
    UINT_PTR Length
);

<DllImport("IPHLPAPI.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function ConvertInterfaceLuidToNameA(
    InterfaceLuid As IntPtr,   ' NET_LUID_LH*
    <MarshalAs(UnmanagedType.LPStr)> InterfaceName As System.Text.StringBuilder,   ' LPSTR out
    Length As UIntPtr   ' UINT_PTR
) As UInteger
End Function

' InterfaceLuid : NET_LUID_LH*
' InterfaceName : LPSTR out
' Length : UINT_PTR
Declare PtrSafe Function ConvertInterfaceLuidToNameA Lib "iphlpapi" ( _
    ByVal InterfaceLuid As LongPtr, _
    ByVal InterfaceName As String, _
    ByVal Length 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

ConvertInterfaceLuidToNameA = ctypes.windll.iphlpapi.ConvertInterfaceLuidToNameA
ConvertInterfaceLuidToNameA.restype = wintypes.DWORD
ConvertInterfaceLuidToNameA.argtypes = [
    ctypes.c_void_p,  # InterfaceLuid : NET_LUID_LH*
    wintypes.LPSTR,  # InterfaceName : LPSTR out
    ctypes.c_size_t,  # Length : UINT_PTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('IPHLPAPI.dll')
ConvertInterfaceLuidToNameA = Fiddle::Function.new(
  lib['ConvertInterfaceLuidToNameA'],
  [
    Fiddle::TYPE_VOIDP,  # InterfaceLuid : NET_LUID_LH*
    Fiddle::TYPE_VOIDP,  # InterfaceName : LPSTR out
    Fiddle::TYPE_UINTPTR_T,  # Length : UINT_PTR
  ],
  -Fiddle::TYPE_INT)

#[link(name = "iphlpapi")]
extern "system" {
    fn ConvertInterfaceLuidToNameA(
        InterfaceLuid: *const NET_LUID_LH,  // NET_LUID_LH*
        InterfaceName: *mut u8,  // LPSTR out
        Length: usize  // UINT_PTR
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("IPHLPAPI.dll", CharSet = CharSet.Ansi)]
public static extern uint ConvertInterfaceLuidToNameA(IntPtr InterfaceLuid, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder InterfaceName, UIntPtr Length);
"@
$api = Add-Type -MemberDefinition $sig -Name 'IPHLPAPI_ConvertInterfaceLuidToNameA' -Namespace Win32 -PassThru
# $api::ConvertInterfaceLuidToNameA(InterfaceLuid, InterfaceName, Length)

#uselib "IPHLPAPI.dll"
#func global ConvertInterfaceLuidToNameA "ConvertInterfaceLuidToNameA" sptr, sptr, sptr
; ConvertInterfaceLuidToNameA varptr(InterfaceLuid), varptr(InterfaceName), Length   ; 戻り値は stat
; InterfaceLuid : NET_LUID_LH* -> "sptr"
; InterfaceName : LPSTR out -> "sptr"
; Length : UINT_PTR -> "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 ConvertInterfaceLuidToNameA "ConvertInterfaceLuidToNameA" var, var, sptr
; res = ConvertInterfaceLuidToNameA(InterfaceLuid, InterfaceName, Length)
; InterfaceLuid : NET_LUID_LH* -> "var"
; InterfaceName : LPSTR out -> "var"
; Length : UINT_PTR -> "sptr"
; ※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 ConvertInterfaceLuidToNameA(NET_LUID_LH* InterfaceLuid, LPSTR InterfaceName, UINT_PTR Length)
#uselib "IPHLPAPI.dll"
#cfunc global ConvertInterfaceLuidToNameA "ConvertInterfaceLuidToNameA" var, var, intptr
; res = ConvertInterfaceLuidToNameA(InterfaceLuid, InterfaceName, Length)
; InterfaceLuid : NET_LUID_LH* -> "var"
; InterfaceName : LPSTR out -> "var"
; Length : UINT_PTR -> "intptr"
; ※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")
	procConvertInterfaceLuidToNameA = iphlpapi.NewProc("ConvertInterfaceLuidToNameA")
)

// InterfaceLuid (NET_LUID_LH*), InterfaceName (LPSTR out), Length (UINT_PTR)
r1, _, err := procConvertInterfaceLuidToNameA.Call(
	uintptr(InterfaceLuid),
	uintptr(InterfaceName),
	uintptr(Length),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // WIN32_ERROR

function ConvertInterfaceLuidToNameA(
  InterfaceLuid: Pointer;   // NET_LUID_LH*
  InterfaceName: PAnsiChar;   // LPSTR out
  Length: NativeUInt   // UINT_PTR
): DWORD; stdcall;
  external 'IPHLPAPI.dll' name 'ConvertInterfaceLuidToNameA';

result := DllCall("IPHLPAPI\ConvertInterfaceLuidToNameA"
    , "Ptr", InterfaceLuid   ; NET_LUID_LH*
    , "Ptr", InterfaceName   ; LPSTR out
    , "UPtr", Length   ; UINT_PTR
    , "UInt")   ; return: WIN32_ERROR

●ConvertInterfaceLuidToNameA(InterfaceLuid, InterfaceName, Length) = DLL("IPHLPAPI.dll", "dword ConvertInterfaceLuidToNameA(void*, char*, int)")
# 呼び出し: ConvertInterfaceLuidToNameA(InterfaceLuid, InterfaceName, Length)
# InterfaceLuid : NET_LUID_LH* -> "void*"
# InterfaceName : LPSTR out -> "char*"
# Length : UINT_PTR -> "int"
# 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)。