SslImportKey

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

HRESULT SslImportKey(
    NCRYPT_PROV_HANDLE hSslProvider,
    NCRYPT_KEY_HANDLE* phKey,
    LPCWSTR pszBlobType,
    BYTE* pbKeyBlob,
    DWORD cbKeyBlob,
    DWORD dwFlags
);

<DllImport("ncrypt.dll", ExactSpelling:=True)>
Public Shared Function SslImportKey(
    hSslProvider As UIntPtr,   ' NCRYPT_PROV_HANDLE
    <Out> ByRef phKey As UIntPtr,   ' NCRYPT_KEY_HANDLE* out
    <MarshalAs(UnmanagedType.LPWStr)> pszBlobType As String,   ' LPCWSTR
    pbKeyBlob As IntPtr,   ' BYTE*
    cbKeyBlob As UInteger,   ' DWORD
    dwFlags As UInteger   ' DWORD
) As Integer
End Function

' hSslProvider : NCRYPT_PROV_HANDLE
' phKey : NCRYPT_KEY_HANDLE* out
' pszBlobType : LPCWSTR
' pbKeyBlob : BYTE*
' cbKeyBlob : DWORD
' dwFlags : DWORD
Declare PtrSafe Function SslImportKey Lib "ncrypt" ( _
    ByVal hSslProvider As LongPtr, _
    ByRef phKey As LongPtr, _
    ByVal pszBlobType As LongPtr, _
    ByVal pbKeyBlob As LongPtr, _
    ByVal cbKeyBlob 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

SslImportKey = ctypes.windll.ncrypt.SslImportKey
SslImportKey.restype = ctypes.c_int
SslImportKey.argtypes = [
    ctypes.c_size_t,  # hSslProvider : NCRYPT_PROV_HANDLE
    ctypes.c_void_p,  # phKey : NCRYPT_KEY_HANDLE* out
    wintypes.LPCWSTR,  # pszBlobType : LPCWSTR
    ctypes.POINTER(ctypes.c_ubyte),  # pbKeyBlob : BYTE*
    wintypes.DWORD,  # cbKeyBlob : DWORD
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ncrypt.dll')
SslImportKey = Fiddle::Function.new(
  lib['SslImportKey'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hSslProvider : NCRYPT_PROV_HANDLE
    Fiddle::TYPE_VOIDP,  # phKey : NCRYPT_KEY_HANDLE* out
    Fiddle::TYPE_VOIDP,  # pszBlobType : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pbKeyBlob : BYTE*
    -Fiddle::TYPE_INT,  # cbKeyBlob : DWORD
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "ncrypt")]
extern "system" {
    fn SslImportKey(
        hSslProvider: usize,  // NCRYPT_PROV_HANDLE
        phKey: *mut usize,  // NCRYPT_KEY_HANDLE* out
        pszBlobType: *const u16,  // LPCWSTR
        pbKeyBlob: *mut u8,  // BYTE*
        cbKeyBlob: u32,  // DWORD
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ncrypt.dll")]
public static extern int SslImportKey(UIntPtr hSslProvider, out UIntPtr phKey, [MarshalAs(UnmanagedType.LPWStr)] string pszBlobType, IntPtr pbKeyBlob, uint cbKeyBlob, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ncrypt_SslImportKey' -Namespace Win32 -PassThru
# $api::SslImportKey(hSslProvider, phKey, pszBlobType, pbKeyBlob, cbKeyBlob, dwFlags)

#uselib "ncrypt.dll"
#func global SslImportKey "SslImportKey" sptr, sptr, sptr, sptr, sptr, sptr
; SslImportKey hSslProvider, phKey, pszBlobType, varptr(pbKeyBlob), cbKeyBlob, dwFlags   ; 戻り値は stat
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; phKey : NCRYPT_KEY_HANDLE* out -> "sptr"
; pszBlobType : LPCWSTR -> "sptr"
; pbKeyBlob : BYTE* -> "sptr"
; cbKeyBlob : DWORD -> "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 SslImportKey "SslImportKey" sptr, int, wstr, var, int, int
; res = SslImportKey(hSslProvider, phKey, pszBlobType, pbKeyBlob, cbKeyBlob, dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "sptr"
; phKey : NCRYPT_KEY_HANDLE* out -> "int"
; pszBlobType : LPCWSTR -> "wstr"
; pbKeyBlob : BYTE* -> "var"
; cbKeyBlob : DWORD -> "int"
; 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 SslImportKey(NCRYPT_PROV_HANDLE hSslProvider, NCRYPT_KEY_HANDLE* phKey, LPCWSTR pszBlobType, BYTE* pbKeyBlob, DWORD cbKeyBlob, DWORD dwFlags)
#uselib "ncrypt.dll"
#cfunc global SslImportKey "SslImportKey" intptr, int, wstr, var, int, int
; res = SslImportKey(hSslProvider, phKey, pszBlobType, pbKeyBlob, cbKeyBlob, dwFlags)
; hSslProvider : NCRYPT_PROV_HANDLE -> "intptr"
; phKey : NCRYPT_KEY_HANDLE* out -> "int"
; pszBlobType : LPCWSTR -> "wstr"
; pbKeyBlob : BYTE* -> "var"
; cbKeyBlob : DWORD -> "int"
; 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")
	procSslImportKey = ncrypt.NewProc("SslImportKey")
)

// hSslProvider (NCRYPT_PROV_HANDLE), phKey (NCRYPT_KEY_HANDLE* out), pszBlobType (LPCWSTR), pbKeyBlob (BYTE*), cbKeyBlob (DWORD), dwFlags (DWORD)
r1, _, err := procSslImportKey.Call(
	uintptr(hSslProvider),
	uintptr(phKey),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszBlobType))),
	uintptr(pbKeyBlob),
	uintptr(cbKeyBlob),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SslImportKey(
  hSslProvider: NativeUInt;   // NCRYPT_PROV_HANDLE
  phKey: Pointer;   // NCRYPT_KEY_HANDLE* out
  pszBlobType: PWideChar;   // LPCWSTR
  pbKeyBlob: Pointer;   // BYTE*
  cbKeyBlob: DWORD;   // DWORD
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'ncrypt.dll' name 'SslImportKey';

result := DllCall("ncrypt\SslImportKey"
    , "UPtr", hSslProvider   ; NCRYPT_PROV_HANDLE
    , "Ptr", phKey   ; NCRYPT_KEY_HANDLE* out
    , "WStr", pszBlobType   ; LPCWSTR
    , "Ptr", pbKeyBlob   ; BYTE*
    , "UInt", cbKeyBlob   ; DWORD
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: HRESULT

●SslImportKey(hSslProvider, phKey, pszBlobType, pbKeyBlob, cbKeyBlob, dwFlags) = DLL("ncrypt.dll", "int SslImportKey(int, void*, char*, void*, dword, dword)")
# 呼び出し: SslImportKey(hSslProvider, phKey, pszBlobType, pbKeyBlob, cbKeyBlob, dwFlags)
# hSslProvider : NCRYPT_PROV_HANDLE -> "int"
# phKey : NCRYPT_KEY_HANDLE* out -> "void*"
# pszBlobType : LPCWSTR -> "char*"
# pbKeyBlob : BYTE* -> "void*"
# cbKeyBlob : DWORD -> "dword"
# 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)。