CertRDNValueToStrW

// CRYPT32.dll  (Unicode / -W)
#include <windows.h>

DWORD CertRDNValueToStrW(
    DWORD dwValueType,
    CRYPT_INTEGER_BLOB* pValue,
    LPWSTR psz,   // optional
    DWORD csz
);

<DllImport("CRYPT32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function CertRDNValueToStrW(
    dwValueType As UInteger,   ' DWORD
    pValue As IntPtr,   ' CRYPT_INTEGER_BLOB*
    <MarshalAs(UnmanagedType.LPWStr)> psz As System.Text.StringBuilder,   ' LPWSTR optional, out
    csz As UInteger   ' DWORD
) As UInteger
End Function

' dwValueType : DWORD
' pValue : CRYPT_INTEGER_BLOB*
' psz : LPWSTR optional, out
' csz : DWORD
Declare PtrSafe Function CertRDNValueToStrW Lib "crypt32" ( _
    ByVal dwValueType As Long, _
    ByVal pValue As LongPtr, _
    ByVal psz As LongPtr, _
    ByVal csz As Long) 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

CertRDNValueToStrW = ctypes.windll.crypt32.CertRDNValueToStrW
CertRDNValueToStrW.restype = wintypes.DWORD
CertRDNValueToStrW.argtypes = [
    wintypes.DWORD,  # dwValueType : DWORD
    ctypes.c_void_p,  # pValue : CRYPT_INTEGER_BLOB*
    wintypes.LPWSTR,  # psz : LPWSTR optional, out
    wintypes.DWORD,  # csz : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CertRDNValueToStrW = Fiddle::Function.new(
  lib['CertRDNValueToStrW'],
  [
    -Fiddle::TYPE_INT,  # dwValueType : DWORD
    Fiddle::TYPE_VOIDP,  # pValue : CRYPT_INTEGER_BLOB*
    Fiddle::TYPE_VOIDP,  # psz : LPWSTR optional, out
    -Fiddle::TYPE_INT,  # csz : DWORD
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "crypt32")]
extern "system" {
    fn CertRDNValueToStrW(
        dwValueType: u32,  // DWORD
        pValue: *mut CRYPT_INTEGER_BLOB,  // CRYPT_INTEGER_BLOB*
        psz: *mut u16,  // LPWSTR optional, out
        csz: u32  // DWORD
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("CRYPT32.dll", CharSet = CharSet.Unicode)]
public static extern uint CertRDNValueToStrW(uint dwValueType, IntPtr pValue, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder psz, uint csz);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CertRDNValueToStrW' -Namespace Win32 -PassThru
# $api::CertRDNValueToStrW(dwValueType, pValue, psz, csz)

#uselib "CRYPT32.dll"
#func global CertRDNValueToStrW "CertRDNValueToStrW" wptr, wptr, wptr, wptr
; CertRDNValueToStrW dwValueType, varptr(pValue), varptr(psz), csz   ; 戻り値は stat
; dwValueType : DWORD -> "wptr"
; pValue : CRYPT_INTEGER_BLOB* -> "wptr"
; psz : LPWSTR optional, out -> "wptr"
; csz : DWORD -> "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 "CRYPT32.dll"
#cfunc global CertRDNValueToStrW "CertRDNValueToStrW" int, var, var, int
; res = CertRDNValueToStrW(dwValueType, pValue, psz, csz)
; dwValueType : DWORD -> "int"
; pValue : CRYPT_INTEGER_BLOB* -> "var"
; psz : LPWSTR optional, out -> "var"
; csz : DWORD -> "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 CertRDNValueToStrW(DWORD dwValueType, CRYPT_INTEGER_BLOB* pValue, LPWSTR psz, DWORD csz)
#uselib "CRYPT32.dll"
#cfunc global CertRDNValueToStrW "CertRDNValueToStrW" int, var, var, int
; res = CertRDNValueToStrW(dwValueType, pValue, psz, csz)
; dwValueType : DWORD -> "int"
; pValue : CRYPT_INTEGER_BLOB* -> "var"
; psz : LPWSTR optional, out -> "var"
; csz : DWORD -> "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 (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCertRDNValueToStrW = crypt32.NewProc("CertRDNValueToStrW")
)

// dwValueType (DWORD), pValue (CRYPT_INTEGER_BLOB*), psz (LPWSTR optional, out), csz (DWORD)
r1, _, err := procCertRDNValueToStrW.Call(
	uintptr(dwValueType),
	uintptr(pValue),
	uintptr(psz),
	uintptr(csz),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function CertRDNValueToStrW(
  dwValueType: DWORD;   // DWORD
  pValue: Pointer;   // CRYPT_INTEGER_BLOB*
  psz: PWideChar;   // LPWSTR optional, out
  csz: DWORD   // DWORD
): DWORD; stdcall;
  external 'CRYPT32.dll' name 'CertRDNValueToStrW';

result := DllCall("CRYPT32\CertRDNValueToStrW"
    , "UInt", dwValueType   ; DWORD
    , "Ptr", pValue   ; CRYPT_INTEGER_BLOB*
    , "Ptr", psz   ; LPWSTR optional, out
    , "UInt", csz   ; DWORD
    , "UInt")   ; return: DWORD

●CertRDNValueToStrW(dwValueType, pValue, psz, csz) = DLL("CRYPT32.dll", "dword CertRDNValueToStrW(dword, void*, char*, dword)")
# 呼び出し: CertRDNValueToStrW(dwValueType, pValue, psz, csz)
# dwValueType : DWORD -> "dword"
# pValue : CRYPT_INTEGER_BLOB* -> "void*"
# psz : LPWSTR optional, out -> "char*"
# csz : DWORD -> "dword"
# 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。