CryptEnumOIDFunction

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

BOOL CryptEnumOIDFunction(
    DWORD dwEncodingType,
    LPCSTR pszFuncName,   // optional
    LPCSTR pszOID,   // optional
    DWORD dwFlags,
    void* pvArg,   // optional
    PFN_CRYPT_ENUM_OID_FUNC pfnEnumOIDFunc
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptEnumOIDFunction(
    dwEncodingType As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPStr)> pszFuncName As String,   ' LPCSTR optional
    <MarshalAs(UnmanagedType.LPStr)> pszOID As String,   ' LPCSTR optional
    dwFlags As UInteger,   ' DWORD
    pvArg As IntPtr,   ' void* optional, in/out
    pfnEnumOIDFunc As IntPtr   ' PFN_CRYPT_ENUM_OID_FUNC
) As Boolean
End Function

' dwEncodingType : DWORD
' pszFuncName : LPCSTR optional
' pszOID : LPCSTR optional
' dwFlags : DWORD
' pvArg : void* optional, in/out
' pfnEnumOIDFunc : PFN_CRYPT_ENUM_OID_FUNC
Declare PtrSafe Function CryptEnumOIDFunction Lib "crypt32" ( _
    ByVal dwEncodingType As Long, _
    ByVal pszFuncName As String, _
    ByVal pszOID As String, _
    ByVal dwFlags As Long, _
    ByVal pvArg As LongPtr, _
    ByVal pfnEnumOIDFunc 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

CryptEnumOIDFunction = ctypes.windll.crypt32.CryptEnumOIDFunction
CryptEnumOIDFunction.restype = wintypes.BOOL
CryptEnumOIDFunction.argtypes = [
    wintypes.DWORD,  # dwEncodingType : DWORD
    wintypes.LPCSTR,  # pszFuncName : LPCSTR optional
    wintypes.LPCSTR,  # pszOID : LPCSTR optional
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.POINTER(None),  # pvArg : void* optional, in/out
    ctypes.c_void_p,  # pfnEnumOIDFunc : PFN_CRYPT_ENUM_OID_FUNC
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptEnumOIDFunction = Fiddle::Function.new(
  lib['CryptEnumOIDFunction'],
  [
    -Fiddle::TYPE_INT,  # dwEncodingType : DWORD
    Fiddle::TYPE_VOIDP,  # pszFuncName : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # pszOID : LPCSTR optional
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # pvArg : void* optional, in/out
    Fiddle::TYPE_VOIDP,  # pfnEnumOIDFunc : PFN_CRYPT_ENUM_OID_FUNC
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CryptEnumOIDFunction(
        dwEncodingType: u32,  // DWORD
        pszFuncName: *const u8,  // LPCSTR optional
        pszOID: *const u8,  // LPCSTR optional
        dwFlags: u32,  // DWORD
        pvArg: *mut (),  // void* optional, in/out
        pfnEnumOIDFunc: *const core::ffi::c_void  // PFN_CRYPT_ENUM_OID_FUNC
    ) -> 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 CryptEnumOIDFunction(uint dwEncodingType, [MarshalAs(UnmanagedType.LPStr)] string pszFuncName, [MarshalAs(UnmanagedType.LPStr)] string pszOID, uint dwFlags, IntPtr pvArg, IntPtr pfnEnumOIDFunc);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptEnumOIDFunction' -Namespace Win32 -PassThru
# $api::CryptEnumOIDFunction(dwEncodingType, pszFuncName, pszOID, dwFlags, pvArg, pfnEnumOIDFunc)

#uselib "CRYPT32.dll"
#func global CryptEnumOIDFunction "CryptEnumOIDFunction" sptr, sptr, sptr, sptr, sptr, sptr
; CryptEnumOIDFunction dwEncodingType, pszFuncName, pszOID, dwFlags, pvArg, pfnEnumOIDFunc   ; 戻り値は stat
; dwEncodingType : DWORD -> "sptr"
; pszFuncName : LPCSTR optional -> "sptr"
; pszOID : LPCSTR optional -> "sptr"
; dwFlags : DWORD -> "sptr"
; pvArg : void* optional, in/out -> "sptr"
; pfnEnumOIDFunc : PFN_CRYPT_ENUM_OID_FUNC -> "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 CryptEnumOIDFunction "CryptEnumOIDFunction" int, str, str, int, sptr, sptr
; res = CryptEnumOIDFunction(dwEncodingType, pszFuncName, pszOID, dwFlags, pvArg, pfnEnumOIDFunc)
; dwEncodingType : DWORD -> "int"
; pszFuncName : LPCSTR optional -> "str"
; pszOID : LPCSTR optional -> "str"
; dwFlags : DWORD -> "int"
; pvArg : void* optional, in/out -> "sptr"
; pfnEnumOIDFunc : PFN_CRYPT_ENUM_OID_FUNC -> "sptr"

; BOOL CryptEnumOIDFunction(DWORD dwEncodingType, LPCSTR pszFuncName, LPCSTR pszOID, DWORD dwFlags, void* pvArg, PFN_CRYPT_ENUM_OID_FUNC pfnEnumOIDFunc)
#uselib "CRYPT32.dll"
#cfunc global CryptEnumOIDFunction "CryptEnumOIDFunction" int, str, str, int, intptr, intptr
; res = CryptEnumOIDFunction(dwEncodingType, pszFuncName, pszOID, dwFlags, pvArg, pfnEnumOIDFunc)
; dwEncodingType : DWORD -> "int"
; pszFuncName : LPCSTR optional -> "str"
; pszOID : LPCSTR optional -> "str"
; dwFlags : DWORD -> "int"
; pvArg : void* optional, in/out -> "intptr"
; pfnEnumOIDFunc : PFN_CRYPT_ENUM_OID_FUNC -> "intptr"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	crypt32 = windows.NewLazySystemDLL("CRYPT32.dll")
	procCryptEnumOIDFunction = crypt32.NewProc("CryptEnumOIDFunction")
)

// dwEncodingType (DWORD), pszFuncName (LPCSTR optional), pszOID (LPCSTR optional), dwFlags (DWORD), pvArg (void* optional, in/out), pfnEnumOIDFunc (PFN_CRYPT_ENUM_OID_FUNC)
r1, _, err := procCryptEnumOIDFunction.Call(
	uintptr(dwEncodingType),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszFuncName))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszOID))),
	uintptr(dwFlags),
	uintptr(pvArg),
	uintptr(pfnEnumOIDFunc),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptEnumOIDFunction(
  dwEncodingType: DWORD;   // DWORD
  pszFuncName: PAnsiChar;   // LPCSTR optional
  pszOID: PAnsiChar;   // LPCSTR optional
  dwFlags: DWORD;   // DWORD
  pvArg: Pointer;   // void* optional, in/out
  pfnEnumOIDFunc: Pointer   // PFN_CRYPT_ENUM_OID_FUNC
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptEnumOIDFunction';

result := DllCall("CRYPT32\CryptEnumOIDFunction"
    , "UInt", dwEncodingType   ; DWORD
    , "AStr", pszFuncName   ; LPCSTR optional
    , "AStr", pszOID   ; LPCSTR optional
    , "UInt", dwFlags   ; DWORD
    , "Ptr", pvArg   ; void* optional, in/out
    , "Ptr", pfnEnumOIDFunc   ; PFN_CRYPT_ENUM_OID_FUNC
    , "Int")   ; return: BOOL

●CryptEnumOIDFunction(dwEncodingType, pszFuncName, pszOID, dwFlags, pvArg, pfnEnumOIDFunc) = DLL("CRYPT32.dll", "bool CryptEnumOIDFunction(dword, char*, char*, dword, void*, void*)")
# 呼び出し: CryptEnumOIDFunction(dwEncodingType, pszFuncName, pszOID, dwFlags, pvArg, pfnEnumOIDFunc)
# dwEncodingType : DWORD -> "dword"
# pszFuncName : LPCSTR optional -> "char*"
# pszOID : LPCSTR optional -> "char*"
# dwFlags : DWORD -> "dword"
# pvArg : void* optional, in/out -> "void*"
# pfnEnumOIDFunc : PFN_CRYPT_ENUM_OID_FUNC -> "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)。