CryptEncodeObject

// CRYPT32.dll
#include <windows.h>

BOOL CryptEncodeObject(
    CERT_QUERY_ENCODING_TYPE dwCertEncodingType,
    LPCSTR lpszStructType,
    const void* pvStructInfo,
    BYTE* pbEncoded,   // optional
    DWORD* pcbEncoded
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptEncodeObject(
    dwCertEncodingType As UInteger,   ' CERT_QUERY_ENCODING_TYPE
    <MarshalAs(UnmanagedType.LPStr)> lpszStructType As String,   ' LPCSTR
    pvStructInfo As IntPtr,   ' void*
    pbEncoded As IntPtr,   ' BYTE* optional, out
    ByRef pcbEncoded As UInteger   ' DWORD* in/out
) As Boolean
End Function

' dwCertEncodingType : CERT_QUERY_ENCODING_TYPE
' lpszStructType : LPCSTR
' pvStructInfo : void*
' pbEncoded : BYTE* optional, out
' pcbEncoded : DWORD* in/out
Declare PtrSafe Function CryptEncodeObject Lib "crypt32" ( _
    ByVal dwCertEncodingType As Long, _
    ByVal lpszStructType As String, _
    ByVal pvStructInfo As LongPtr, _
    ByVal pbEncoded As LongPtr, _
    ByRef pcbEncoded As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CryptEncodeObject = ctypes.windll.crypt32.CryptEncodeObject
CryptEncodeObject.restype = wintypes.BOOL
CryptEncodeObject.argtypes = [
    wintypes.DWORD,  # dwCertEncodingType : CERT_QUERY_ENCODING_TYPE
    wintypes.LPCSTR,  # lpszStructType : LPCSTR
    ctypes.POINTER(None),  # pvStructInfo : void*
    ctypes.POINTER(ctypes.c_ubyte),  # pbEncoded : BYTE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcbEncoded : DWORD* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptEncodeObject = Fiddle::Function.new(
  lib['CryptEncodeObject'],
  [
    -Fiddle::TYPE_INT,  # dwCertEncodingType : CERT_QUERY_ENCODING_TYPE
    Fiddle::TYPE_VOIDP,  # lpszStructType : LPCSTR
    Fiddle::TYPE_VOIDP,  # pvStructInfo : void*
    Fiddle::TYPE_VOIDP,  # pbEncoded : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # pcbEncoded : DWORD* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CryptEncodeObject(
        dwCertEncodingType: u32,  // CERT_QUERY_ENCODING_TYPE
        lpszStructType: *const u8,  // LPCSTR
        pvStructInfo: *const (),  // void*
        pbEncoded: *mut u8,  // BYTE* optional, out
        pcbEncoded: *mut u32  // DWORD* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("CRYPT32.dll", SetLastError = true)]
public static extern bool CryptEncodeObject(uint dwCertEncodingType, [MarshalAs(UnmanagedType.LPStr)] string lpszStructType, IntPtr pvStructInfo, IntPtr pbEncoded, ref uint pcbEncoded);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptEncodeObject' -Namespace Win32 -PassThru
# $api::CryptEncodeObject(dwCertEncodingType, lpszStructType, pvStructInfo, pbEncoded, pcbEncoded)

#uselib "CRYPT32.dll"
#func global CryptEncodeObject "CryptEncodeObject" sptr, sptr, sptr, sptr, sptr
; CryptEncodeObject dwCertEncodingType, lpszStructType, pvStructInfo, varptr(pbEncoded), varptr(pcbEncoded)   ; 戻り値は stat
; dwCertEncodingType : CERT_QUERY_ENCODING_TYPE -> "sptr"
; lpszStructType : LPCSTR -> "sptr"
; pvStructInfo : void* -> "sptr"
; pbEncoded : BYTE* optional, out -> "sptr"
; pcbEncoded : DWORD* in/out -> "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 "CRYPT32.dll"
#cfunc global CryptEncodeObject "CryptEncodeObject" int, str, sptr, var, var
; res = CryptEncodeObject(dwCertEncodingType, lpszStructType, pvStructInfo, pbEncoded, pcbEncoded)
; dwCertEncodingType : CERT_QUERY_ENCODING_TYPE -> "int"
; lpszStructType : LPCSTR -> "str"
; pvStructInfo : void* -> "sptr"
; pbEncoded : BYTE* optional, out -> "var"
; pcbEncoded : DWORD* in/out -> "var"
; ※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。

; BOOL CryptEncodeObject(CERT_QUERY_ENCODING_TYPE dwCertEncodingType, LPCSTR lpszStructType, void* pvStructInfo, BYTE* pbEncoded, DWORD* pcbEncoded)
#uselib "CRYPT32.dll"
#cfunc global CryptEncodeObject "CryptEncodeObject" int, str, intptr, var, var
; res = CryptEncodeObject(dwCertEncodingType, lpszStructType, pvStructInfo, pbEncoded, pcbEncoded)
; dwCertEncodingType : CERT_QUERY_ENCODING_TYPE -> "int"
; lpszStructType : LPCSTR -> "str"
; pvStructInfo : void* -> "intptr"
; pbEncoded : BYTE* optional, out -> "var"
; pcbEncoded : DWORD* in/out -> "var"
; ※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")
	procCryptEncodeObject = crypt32.NewProc("CryptEncodeObject")
)

// dwCertEncodingType (CERT_QUERY_ENCODING_TYPE), lpszStructType (LPCSTR), pvStructInfo (void*), pbEncoded (BYTE* optional, out), pcbEncoded (DWORD* in/out)
r1, _, err := procCryptEncodeObject.Call(
	uintptr(dwCertEncodingType),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpszStructType))),
	uintptr(pvStructInfo),
	uintptr(pbEncoded),
	uintptr(pcbEncoded),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptEncodeObject(
  dwCertEncodingType: DWORD;   // CERT_QUERY_ENCODING_TYPE
  lpszStructType: PAnsiChar;   // LPCSTR
  pvStructInfo: Pointer;   // void*
  pbEncoded: Pointer;   // BYTE* optional, out
  pcbEncoded: Pointer   // DWORD* in/out
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptEncodeObject';

result := DllCall("CRYPT32\CryptEncodeObject"
    , "UInt", dwCertEncodingType   ; CERT_QUERY_ENCODING_TYPE
    , "AStr", lpszStructType   ; LPCSTR
    , "Ptr", pvStructInfo   ; void*
    , "Ptr", pbEncoded   ; BYTE* optional, out
    , "Ptr", pcbEncoded   ; DWORD* in/out
    , "Int")   ; return: BOOL

●CryptEncodeObject(dwCertEncodingType, lpszStructType, pvStructInfo, pbEncoded, pcbEncoded) = DLL("CRYPT32.dll", "bool CryptEncodeObject(dword, char*, void*, void*, void*)")
# 呼び出し: CryptEncodeObject(dwCertEncodingType, lpszStructType, pvStructInfo, pbEncoded, pcbEncoded)
# dwCertEncodingType : CERT_QUERY_ENCODING_TYPE -> "dword"
# lpszStructType : LPCSTR -> "char*"
# pvStructInfo : void* -> "void*"
# pbEncoded : BYTE* optional, out -> "void*"
# pcbEncoded : DWORD* in/out -> "void*"
# 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)。