CryptGetUserKey

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

BOOL CryptGetUserKey(
    UINT_PTR hProv,
    DWORD dwKeySpec,
    UINT_PTR* phUserKey
);

<DllImport("ADVAPI32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CryptGetUserKey(
    hProv As UIntPtr,   ' UINT_PTR
    dwKeySpec As UInteger,   ' DWORD
    <Out> ByRef phUserKey As UIntPtr   ' UINT_PTR* out
) As Boolean
End Function

' hProv : UINT_PTR
' dwKeySpec : DWORD
' phUserKey : UINT_PTR* out
Declare PtrSafe Function CryptGetUserKey Lib "advapi32" ( _
    ByVal hProv As LongPtr, _
    ByVal dwKeySpec As Long, _
    ByRef phUserKey As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

CryptGetUserKey = ctypes.windll.advapi32.CryptGetUserKey
CryptGetUserKey.restype = wintypes.BOOL
CryptGetUserKey.argtypes = [
    ctypes.c_size_t,  # hProv : UINT_PTR
    wintypes.DWORD,  # dwKeySpec : DWORD
    ctypes.POINTER(ctypes.c_size_t),  # phUserKey : UINT_PTR* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
CryptGetUserKey = Fiddle::Function.new(
  lib['CryptGetUserKey'],
  [
    Fiddle::TYPE_UINTPTR_T,  # hProv : UINT_PTR
    -Fiddle::TYPE_INT,  # dwKeySpec : DWORD
    Fiddle::TYPE_VOIDP,  # phUserKey : UINT_PTR* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "advapi32")]
extern "system" {
    fn CryptGetUserKey(
        hProv: usize,  // UINT_PTR
        dwKeySpec: u32,  // DWORD
        phUserKey: *mut usize  // UINT_PTR* out
    ) -> 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 CryptGetUserKey(UIntPtr hProv, uint dwKeySpec, out UIntPtr phUserKey);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_CryptGetUserKey' -Namespace Win32 -PassThru
# $api::CryptGetUserKey(hProv, dwKeySpec, phUserKey)

#uselib "ADVAPI32.dll"
#func global CryptGetUserKey "CryptGetUserKey" sptr, sptr, sptr
; CryptGetUserKey hProv, dwKeySpec, varptr(phUserKey)   ; 戻り値は stat
; hProv : UINT_PTR -> "sptr"
; dwKeySpec : DWORD -> "sptr"
; phUserKey : UINT_PTR* 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 "ADVAPI32.dll"
#cfunc global CryptGetUserKey "CryptGetUserKey" sptr, int, var
; res = CryptGetUserKey(hProv, dwKeySpec, phUserKey)
; hProv : UINT_PTR -> "sptr"
; dwKeySpec : DWORD -> "int"
; phUserKey : UINT_PTR* 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 CryptGetUserKey(UINT_PTR hProv, DWORD dwKeySpec, UINT_PTR* phUserKey)
#uselib "ADVAPI32.dll"
#cfunc global CryptGetUserKey "CryptGetUserKey" intptr, int, var
; res = CryptGetUserKey(hProv, dwKeySpec, phUserKey)
; hProv : UINT_PTR -> "intptr"
; dwKeySpec : DWORD -> "int"
; phUserKey : UINT_PTR* 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 (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procCryptGetUserKey = advapi32.NewProc("CryptGetUserKey")
)

// hProv (UINT_PTR), dwKeySpec (DWORD), phUserKey (UINT_PTR* out)
r1, _, err := procCryptGetUserKey.Call(
	uintptr(hProv),
	uintptr(dwKeySpec),
	uintptr(phUserKey),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CryptGetUserKey(
  hProv: NativeUInt;   // UINT_PTR
  dwKeySpec: DWORD;   // DWORD
  phUserKey: Pointer   // UINT_PTR* out
): BOOL; stdcall;
  external 'ADVAPI32.dll' name 'CryptGetUserKey';

result := DllCall("ADVAPI32\CryptGetUserKey"
    , "UPtr", hProv   ; UINT_PTR
    , "UInt", dwKeySpec   ; DWORD
    , "Ptr", phUserKey   ; UINT_PTR* out
    , "Int")   ; return: BOOL

●CryptGetUserKey(hProv, dwKeySpec, phUserKey) = DLL("ADVAPI32.dll", "bool CryptGetUserKey(int, dword, void*)")
# 呼び出し: CryptGetUserKey(hProv, dwKeySpec, phUserKey)
# hProv : UINT_PTR -> "int"
# dwKeySpec : DWORD -> "dword"
# phUserKey : UINT_PTR* 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)。