CryptGetDefaultOIDDllList

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

BOOL CryptGetDefaultOIDDllList(
    void* hFuncSet,
    DWORD dwEncodingType,
    LPWSTR pwszDllList,   // optional
    DWORD* pcchDllList
);

<DllImport("CRYPT32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptGetDefaultOIDDllList(
    hFuncSet As IntPtr,   ' void*
    dwEncodingType As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> pwszDllList As System.Text.StringBuilder,   ' LPWSTR optional, out
    ByRef pcchDllList As UInteger   ' DWORD* in/out
) As Boolean
End Function

' hFuncSet : void*
' dwEncodingType : DWORD
' pwszDllList : LPWSTR optional, out
' pcchDllList : DWORD* in/out
Declare PtrSafe Function CryptGetDefaultOIDDllList Lib "crypt32" ( _
    ByVal hFuncSet As LongPtr, _
    ByVal dwEncodingType As Long, _
    ByVal pwszDllList As LongPtr, _
    ByRef pcchDllList 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

CryptGetDefaultOIDDllList = ctypes.windll.crypt32.CryptGetDefaultOIDDllList
CryptGetDefaultOIDDllList.restype = wintypes.BOOL
CryptGetDefaultOIDDllList.argtypes = [
    ctypes.POINTER(None),  # hFuncSet : void*
    wintypes.DWORD,  # dwEncodingType : DWORD
    wintypes.LPWSTR,  # pwszDllList : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # pcchDllList : DWORD* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('CRYPT32.dll')
CryptGetDefaultOIDDllList = Fiddle::Function.new(
  lib['CryptGetDefaultOIDDllList'],
  [
    Fiddle::TYPE_VOIDP,  # hFuncSet : void*
    -Fiddle::TYPE_INT,  # dwEncodingType : DWORD
    Fiddle::TYPE_VOIDP,  # pwszDllList : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # pcchDllList : DWORD* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "crypt32")]
extern "system" {
    fn CryptGetDefaultOIDDllList(
        hFuncSet: *mut (),  // void*
        dwEncodingType: u32,  // DWORD
        pwszDllList: *mut u16,  // LPWSTR optional, out
        pcchDllList: *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 CryptGetDefaultOIDDllList(IntPtr hFuncSet, uint dwEncodingType, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pwszDllList, ref uint pcchDllList);
"@
$api = Add-Type -MemberDefinition $sig -Name 'CRYPT32_CryptGetDefaultOIDDllList' -Namespace Win32 -PassThru
# $api::CryptGetDefaultOIDDllList(hFuncSet, dwEncodingType, pwszDllList, pcchDllList)

#uselib "CRYPT32.dll"
#func global CryptGetDefaultOIDDllList "CryptGetDefaultOIDDllList" sptr, sptr, sptr, sptr
; CryptGetDefaultOIDDllList hFuncSet, dwEncodingType, varptr(pwszDllList), varptr(pcchDllList)   ; 戻り値は stat
; hFuncSet : void* -> "sptr"
; dwEncodingType : DWORD -> "sptr"
; pwszDllList : LPWSTR optional, out -> "sptr"
; pcchDllList : 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 CryptGetDefaultOIDDllList "CryptGetDefaultOIDDllList" sptr, int, var, var
; res = CryptGetDefaultOIDDllList(hFuncSet, dwEncodingType, pwszDllList, pcchDllList)
; hFuncSet : void* -> "sptr"
; dwEncodingType : DWORD -> "int"
; pwszDllList : LPWSTR optional, out -> "var"
; pcchDllList : 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 CryptGetDefaultOIDDllList(void* hFuncSet, DWORD dwEncodingType, LPWSTR pwszDllList, DWORD* pcchDllList)
#uselib "CRYPT32.dll"
#cfunc global CryptGetDefaultOIDDllList "CryptGetDefaultOIDDllList" intptr, int, var, var
; res = CryptGetDefaultOIDDllList(hFuncSet, dwEncodingType, pwszDllList, pcchDllList)
; hFuncSet : void* -> "intptr"
; dwEncodingType : DWORD -> "int"
; pwszDllList : LPWSTR optional, out -> "var"
; pcchDllList : 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")
	procCryptGetDefaultOIDDllList = crypt32.NewProc("CryptGetDefaultOIDDllList")
)

// hFuncSet (void*), dwEncodingType (DWORD), pwszDllList (LPWSTR optional, out), pcchDllList (DWORD* in/out)
r1, _, err := procCryptGetDefaultOIDDllList.Call(
	uintptr(hFuncSet),
	uintptr(dwEncodingType),
	uintptr(pwszDllList),
	uintptr(pcchDllList),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptGetDefaultOIDDllList(
  hFuncSet: Pointer;   // void*
  dwEncodingType: DWORD;   // DWORD
  pwszDllList: PWideChar;   // LPWSTR optional, out
  pcchDllList: Pointer   // DWORD* in/out
): BOOL; stdcall;
  external 'CRYPT32.dll' name 'CryptGetDefaultOIDDllList';

result := DllCall("CRYPT32\CryptGetDefaultOIDDllList"
    , "Ptr", hFuncSet   ; void*
    , "UInt", dwEncodingType   ; DWORD
    , "Ptr", pwszDllList   ; LPWSTR optional, out
    , "Ptr", pcchDllList   ; DWORD* in/out
    , "Int")   ; return: BOOL

●CryptGetDefaultOIDDllList(hFuncSet, dwEncodingType, pwszDllList, pcchDllList) = DLL("CRYPT32.dll", "bool CryptGetDefaultOIDDllList(void*, dword, char*, void*)")
# 呼び出し: CryptGetDefaultOIDDllList(hFuncSet, dwEncodingType, pwszDllList, pcchDllList)
# hFuncSet : void* -> "void*"
# dwEncodingType : DWORD -> "dword"
# pwszDllList : LPWSTR optional, out -> "char*"
# pcchDllList : 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)。