GetSChannelInterface

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

NTSTATUS GetSChannelInterface(
    LPCWSTR pszProviderName,
    NCRYPT_SSL_FUNCTION_TABLE** ppFunctionTable,
    DWORD dwFlags
);

<DllImport("ncrypt.dll", ExactSpelling:=True)>
Public Shared Function GetSChannelInterface(
    <MarshalAs(UnmanagedType.LPWStr)> pszProviderName As String,   ' LPCWSTR
    ppFunctionTable As IntPtr,   ' NCRYPT_SSL_FUNCTION_TABLE** out
    dwFlags As UInteger   ' DWORD
) As Integer
End Function

' pszProviderName : LPCWSTR
' ppFunctionTable : NCRYPT_SSL_FUNCTION_TABLE** out
' dwFlags : DWORD
Declare PtrSafe Function GetSChannelInterface Lib "ncrypt" ( _
    ByVal pszProviderName As LongPtr, _
    ByVal ppFunctionTable 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

GetSChannelInterface = ctypes.windll.ncrypt.GetSChannelInterface
GetSChannelInterface.restype = ctypes.c_int
GetSChannelInterface.argtypes = [
    wintypes.LPCWSTR,  # pszProviderName : LPCWSTR
    ctypes.c_void_p,  # ppFunctionTable : NCRYPT_SSL_FUNCTION_TABLE** out
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ncrypt.dll')
GetSChannelInterface = Fiddle::Function.new(
  lib['GetSChannelInterface'],
  [
    Fiddle::TYPE_VOIDP,  # pszProviderName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # ppFunctionTable : NCRYPT_SSL_FUNCTION_TABLE** out
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "ncrypt")]
extern "system" {
    fn GetSChannelInterface(
        pszProviderName: *const u16,  // LPCWSTR
        ppFunctionTable: *mut *mut NCRYPT_SSL_FUNCTION_TABLE,  // NCRYPT_SSL_FUNCTION_TABLE** out
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ncrypt.dll")]
public static extern int GetSChannelInterface([MarshalAs(UnmanagedType.LPWStr)] string pszProviderName, IntPtr ppFunctionTable, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ncrypt_GetSChannelInterface' -Namespace Win32 -PassThru
# $api::GetSChannelInterface(pszProviderName, ppFunctionTable, dwFlags)

#uselib "ncrypt.dll"
#func global GetSChannelInterface "GetSChannelInterface" sptr, sptr, sptr
; GetSChannelInterface pszProviderName, varptr(ppFunctionTable), dwFlags   ; 戻り値は stat
; pszProviderName : LPCWSTR -> "sptr"
; ppFunctionTable : NCRYPT_SSL_FUNCTION_TABLE** 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 GetSChannelInterface "GetSChannelInterface" wstr, var, int
; res = GetSChannelInterface(pszProviderName, ppFunctionTable, dwFlags)
; pszProviderName : LPCWSTR -> "wstr"
; ppFunctionTable : NCRYPT_SSL_FUNCTION_TABLE** 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。

; NTSTATUS GetSChannelInterface(LPCWSTR pszProviderName, NCRYPT_SSL_FUNCTION_TABLE** ppFunctionTable, DWORD dwFlags)
#uselib "ncrypt.dll"
#cfunc global GetSChannelInterface "GetSChannelInterface" wstr, var, int
; res = GetSChannelInterface(pszProviderName, ppFunctionTable, dwFlags)
; pszProviderName : LPCWSTR -> "wstr"
; ppFunctionTable : NCRYPT_SSL_FUNCTION_TABLE** 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")
	procGetSChannelInterface = ncrypt.NewProc("GetSChannelInterface")
)

// pszProviderName (LPCWSTR), ppFunctionTable (NCRYPT_SSL_FUNCTION_TABLE** out), dwFlags (DWORD)
r1, _, err := procGetSChannelInterface.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszProviderName))),
	uintptr(ppFunctionTable),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // NTSTATUS

function GetSChannelInterface(
  pszProviderName: PWideChar;   // LPCWSTR
  ppFunctionTable: Pointer;   // NCRYPT_SSL_FUNCTION_TABLE** out
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'ncrypt.dll' name 'GetSChannelInterface';

result := DllCall("ncrypt\GetSChannelInterface"
    , "WStr", pszProviderName   ; LPCWSTR
    , "Ptr", ppFunctionTable   ; NCRYPT_SSL_FUNCTION_TABLE** out
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: NTSTATUS

●GetSChannelInterface(pszProviderName, ppFunctionTable, dwFlags) = DLL("ncrypt.dll", "int GetSChannelInterface(char*, void*, dword)")
# 呼び出し: GetSChannelInterface(pszProviderName, ppFunctionTable, dwFlags)
# pszProviderName : LPCWSTR -> "char*"
# ppFunctionTable : NCRYPT_SSL_FUNCTION_TABLE** 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)。