CryptGetProvParam

// ADVAPI32.dll
#include <windows.h>

BOOL CryptGetProvParam(
    UINT_PTR hProv,
    DWORD dwParam,
    BYTE* pbData,   // optional
    DWORD* pdwDataLen,
    DWORD dwFlags
);

<DllImport("ADVAPI32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptGetProvParam(
    hProv As UIntPtr,   ' UINT_PTR
    dwParam As UInteger,   ' DWORD
    pbData As IntPtr,   ' BYTE* optional, out
    ByRef pdwDataLen As UInteger,   ' DWORD* in/out
    dwFlags As UInteger   ' DWORD
) As Boolean
End Function

' hProv : UINT_PTR
' dwParam : DWORD
' pbData : BYTE* optional, out
' pdwDataLen : DWORD* in/out
' dwFlags : DWORD
Declare PtrSafe Function CryptGetProvParam Lib "advapi32" ( _
    ByVal hProv As LongPtr, _
    ByVal dwParam As Long, _
    ByVal pbData As LongPtr, _
    ByRef pdwDataLen As Long, _
    ByVal dwFlags 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

CryptGetProvParam = ctypes.windll.advapi32.CryptGetProvParam
CryptGetProvParam.restype = wintypes.BOOL
CryptGetProvParam.argtypes = [
    ctypes.c_size_t,  # hProv : UINT_PTR
    wintypes.DWORD,  # dwParam : DWORD
    ctypes.POINTER(ctypes.c_ubyte),  # pbData : BYTE* optional, out
    ctypes.POINTER(wintypes.DWORD),  # pdwDataLen : DWORD* in/out
    wintypes.DWORD,  # dwFlags : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
CryptGetProvParam = Fiddle::Function.new(
  lib['CryptGetProvParam'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hProv : UINT_PTR
    -Fiddle::TYPE_INT,  # dwParam : DWORD
    Fiddle::TYPE_VOIDP,  # pbData : BYTE* optional, out
    Fiddle::TYPE_VOIDP,  # pdwDataLen : DWORD* in/out
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "advapi32")]
extern "system" {
    fn CryptGetProvParam(
        hProv: usize,  // UINT_PTR
        dwParam: u32,  // DWORD
        pbData: *mut u8,  // BYTE* optional, out
        pdwDataLen: *mut u32,  // DWORD* in/out
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("ADVAPI32.dll", SetLastError = true)]
public static extern bool CryptGetProvParam(UIntPtr hProv, uint dwParam, IntPtr pbData, ref uint pdwDataLen, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_CryptGetProvParam' -Namespace Win32 -PassThru
# $api::CryptGetProvParam(hProv, dwParam, pbData, pdwDataLen, dwFlags)

#uselib "ADVAPI32.dll"
#func global CryptGetProvParam "CryptGetProvParam" sptr, sptr, sptr, sptr, sptr
; CryptGetProvParam hProv, dwParam, varptr(pbData), varptr(pdwDataLen), dwFlags   ; 戻り値は stat
; hProv : UINT_PTR -> "sptr"
; dwParam : DWORD -> "sptr"
; pbData : BYTE* optional, out -> "sptr"
; pdwDataLen : DWORD* in/out -> "sptr"
; dwFlags : DWORD -> "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 "ADVAPI32.dll"
#cfunc global CryptGetProvParam "CryptGetProvParam" sptr, int, var, var, int
; res = CryptGetProvParam(hProv, dwParam, pbData, pdwDataLen, dwFlags)
; hProv : UINT_PTR -> "sptr"
; dwParam : DWORD -> "int"
; pbData : BYTE* optional, out -> "var"
; pdwDataLen : DWORD* in/out -> "var"
; dwFlags : 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。

; BOOL CryptGetProvParam(UINT_PTR hProv, DWORD dwParam, BYTE* pbData, DWORD* pdwDataLen, DWORD dwFlags)
#uselib "ADVAPI32.dll"
#cfunc global CryptGetProvParam "CryptGetProvParam" intptr, int, var, var, int
; res = CryptGetProvParam(hProv, dwParam, pbData, pdwDataLen, dwFlags)
; hProv : UINT_PTR -> "intptr"
; dwParam : DWORD -> "int"
; pbData : BYTE* optional, out -> "var"
; pdwDataLen : DWORD* in/out -> "var"
; dwFlags : 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 (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procCryptGetProvParam = advapi32.NewProc("CryptGetProvParam")
)

// hProv (UINT_PTR), dwParam (DWORD), pbData (BYTE* optional, out), pdwDataLen (DWORD* in/out), dwFlags (DWORD)
r1, _, err := procCryptGetProvParam.Call(
	uintptr(hProv),
	uintptr(dwParam),
	uintptr(pbData),
	uintptr(pdwDataLen),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptGetProvParam(
  hProv: NativeUInt;   // UINT_PTR
  dwParam: DWORD;   // DWORD
  pbData: Pointer;   // BYTE* optional, out
  pdwDataLen: Pointer;   // DWORD* in/out
  dwFlags: DWORD   // DWORD
): BOOL; stdcall;
  external 'ADVAPI32.dll' name 'CryptGetProvParam';

result := DllCall("ADVAPI32\CryptGetProvParam"
    , "UPtr", hProv   ; UINT_PTR
    , "UInt", dwParam   ; DWORD
    , "Ptr", pbData   ; BYTE* optional, out
    , "Ptr", pdwDataLen   ; DWORD* in/out
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: BOOL

●CryptGetProvParam(hProv, dwParam, pbData, pdwDataLen, dwFlags) = DLL("ADVAPI32.dll", "bool CryptGetProvParam(int, dword, void*, void*, dword)")
# 呼び出し: CryptGetProvParam(hProv, dwParam, pbData, pdwDataLen, dwFlags)
# hProv : UINT_PTR -> "int"
# dwParam : DWORD -> "dword"
# pbData : BYTE* optional, out -> "void*"
# pdwDataLen : DWORD* in/out -> "void*"
# dwFlags : 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)。