SslLookupCipherSuiteInfo

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

HRESULT SslLookupCipherSuiteInfo(
    NCRYPT_PROV_HANDLE hSslProvider,
    DWORD dwProtocol,
    DWORD dwCipherSuite,
    DWORD dwKeyType,
    NCRYPT_SSL_CIPHER_SUITE* pCipherSuite,
    DWORD dwFlags
);

<DllImport("ncrypt.dll", ExactSpelling:=True)>
Public Shared Function SslLookupCipherSuiteInfo(
    hSslProvider As UIntPtr,   ' NCRYPT_PROV_HANDLE
    dwProtocol As UInteger,   ' DWORD
    dwCipherSuite As UInteger,   ' DWORD
    dwKeyType As UInteger,   ' DWORD
    pCipherSuite As IntPtr,   ' NCRYPT_SSL_CIPHER_SUITE* out
    dwFlags As UInteger   ' DWORD
) As Integer
End Function

' hSslProvider : NCRYPT_PROV_HANDLE
' dwProtocol : DWORD
' dwCipherSuite : DWORD
' dwKeyType : DWORD
' pCipherSuite : NCRYPT_SSL_CIPHER_SUITE* out
' dwFlags : DWORD
Declare PtrSafe Function SslLookupCipherSuiteInfo Lib "ncrypt" ( _
    ByVal hSslProvider As LongPtr, _
    ByVal dwProtocol As Long, _
    ByVal dwCipherSuite As Long, _
    ByVal dwKeyType As Long, _
    ByVal pCipherSuite As LongPtr, _
    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

SslLookupCipherSuiteInfo = ctypes.windll.ncrypt.SslLookupCipherSuiteInfo
SslLookupCipherSuiteInfo.restype = ctypes.c_int
SslLookupCipherSuiteInfo.argtypes = [
    ctypes.c_size_t,  # hSslProvider : NCRYPT_PROV_HANDLE
    wintypes.DWORD,  # dwProtocol : DWORD
    wintypes.DWORD,  # dwCipherSuite : DWORD
    wintypes.DWORD,  # dwKeyType : DWORD
    ctypes.c_void_p,  # pCipherSuite : NCRYPT_SSL_CIPHER_SUITE* out
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ncrypt.dll')
SslLookupCipherSuiteInfo = Fiddle::Function.new(
  lib['SslLookupCipherSuiteInfo'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hSslProvider : NCRYPT_PROV_HANDLE
    -Fiddle::TYPE_INT,  # dwProtocol : DWORD
    -Fiddle::TYPE_INT,  # dwCipherSuite : DWORD
    -Fiddle::TYPE_INT,  # dwKeyType : DWORD
    Fiddle::TYPE_VOIDP,  # pCipherSuite : NCRYPT_SSL_CIPHER_SUITE* out
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "ncrypt")]
extern "system" {
    fn SslLookupCipherSuiteInfo(
        hSslProvider: usize,  // NCRYPT_PROV_HANDLE
        dwProtocol: u32,  // DWORD
        dwCipherSuite: u32,  // DWORD
        dwKeyType: u32,  // DWORD
        pCipherSuite: *mut NCRYPT_SSL_CIPHER_SUITE,  // NCRYPT_SSL_CIPHER_SUITE* out
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ncrypt.dll")]
public static extern int SslLookupCipherSuiteInfo(UIntPtr hSslProvider, uint dwProtocol, uint dwCipherSuite, uint dwKeyType, IntPtr pCipherSuite, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ncrypt_SslLookupCipherSuiteInfo' -Namespace Win32 -PassThru
# $api::SslLookupCipherSuiteInfo(hSslProvider, dwProtocol, dwCipherSuite, dwKeyType, pCipherSuite, dwFlags)

#uselib "ncrypt.dll"
#func global SslLookupCipherSuiteInfo "SslLookupCipherSuiteInfo" sptr, sptr, sptr, sptr, sptr, sptr
; SslLookupCipherSuiteInfo hSslProvider, dwProtocol, dwCipherSuite, dwKeyType, varptr(pCipherSuite), dwFlags   ; 戻り値は stat
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; dwProtocol : DWORD -> "sptr"
; dwCipherSuite : DWORD -> "sptr"
; dwKeyType : DWORD -> "sptr"
; pCipherSuite : NCRYPT_SSL_CIPHER_SUITE* 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 "ncrypt.dll"
#cfunc global SslLookupCipherSuiteInfo "SslLookupCipherSuiteInfo" sptr, int, int, int, var, int
; res = SslLookupCipherSuiteInfo(hSslProvider, dwProtocol, dwCipherSuite, dwKeyType, pCipherSuite, dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; dwProtocol : DWORD -> "int"
; dwCipherSuite : DWORD -> "int"
; dwKeyType : DWORD -> "int"
; pCipherSuite : NCRYPT_SSL_CIPHER_SUITE* 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。

; HRESULT SslLookupCipherSuiteInfo(NCRYPT_PROV_HANDLE hSslProvider, DWORD dwProtocol, DWORD dwCipherSuite, DWORD dwKeyType, NCRYPT_SSL_CIPHER_SUITE* pCipherSuite, DWORD dwFlags)
#uselib "ncrypt.dll"
#cfunc global SslLookupCipherSuiteInfo "SslLookupCipherSuiteInfo" intptr, int, int, int, var, int
; res = SslLookupCipherSuiteInfo(hSslProvider, dwProtocol, dwCipherSuite, dwKeyType, pCipherSuite, dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "intptr"
; dwProtocol : DWORD -> "int"
; dwCipherSuite : DWORD -> "int"
; dwKeyType : DWORD -> "int"
; pCipherSuite : NCRYPT_SSL_CIPHER_SUITE* 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 (
	ncrypt = windows.NewLazySystemDLL("ncrypt.dll")
	procSslLookupCipherSuiteInfo = ncrypt.NewProc("SslLookupCipherSuiteInfo")
)

// hSslProvider (NCRYPT_PROV_HANDLE), dwProtocol (DWORD), dwCipherSuite (DWORD), dwKeyType (DWORD), pCipherSuite (NCRYPT_SSL_CIPHER_SUITE* out), dwFlags (DWORD)
r1, _, err := procSslLookupCipherSuiteInfo.Call(
	uintptr(hSslProvider),
	uintptr(dwProtocol),
	uintptr(dwCipherSuite),
	uintptr(dwKeyType),
	uintptr(pCipherSuite),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SslLookupCipherSuiteInfo(
  hSslProvider: NativeUInt;   // NCRYPT_PROV_HANDLE
  dwProtocol: DWORD;   // DWORD
  dwCipherSuite: DWORD;   // DWORD
  dwKeyType: DWORD;   // DWORD
  pCipherSuite: Pointer;   // NCRYPT_SSL_CIPHER_SUITE* out
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'ncrypt.dll' name 'SslLookupCipherSuiteInfo';

result := DllCall("ncrypt\SslLookupCipherSuiteInfo"
    , "UPtr", hSslProvider   ; NCRYPT_PROV_HANDLE
    , "UInt", dwProtocol   ; DWORD
    , "UInt", dwCipherSuite   ; DWORD
    , "UInt", dwKeyType   ; DWORD
    , "Ptr", pCipherSuite   ; NCRYPT_SSL_CIPHER_SUITE* out
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: HRESULT

●SslLookupCipherSuiteInfo(hSslProvider, dwProtocol, dwCipherSuite, dwKeyType, pCipherSuite, dwFlags) = DLL("ncrypt.dll", "int SslLookupCipherSuiteInfo(int, dword, dword, dword, void*, dword)")
# 呼び出し: SslLookupCipherSuiteInfo(hSslProvider, dwProtocol, dwCipherSuite, dwKeyType, pCipherSuite, dwFlags)
# hSslProvider : NCRYPT_PROV_HANDLE -> "int"
# dwProtocol : DWORD -> "dword"
# dwCipherSuite : DWORD -> "dword"
# dwKeyType : DWORD -> "dword"
# pCipherSuite : NCRYPT_SSL_CIPHER_SUITE* 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)。