OpenEncryptedFileRawW

// ADVAPI32.dll  (Unicode / -W)
#include <windows.h>

DWORD OpenEncryptedFileRawW(
    LPCWSTR lpFileName,
    DWORD ulFlags,
    void** pvContext
);

<DllImport("ADVAPI32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function OpenEncryptedFileRawW(
    <MarshalAs(UnmanagedType.LPWStr)> lpFileName As String,   ' LPCWSTR
    ulFlags As UInteger,   ' DWORD
    pvContext As IntPtr   ' void** out
) As UInteger
End Function

' lpFileName : LPCWSTR
' ulFlags : DWORD
' pvContext : void** out
Declare PtrSafe Function OpenEncryptedFileRawW Lib "advapi32" ( _
    ByVal lpFileName As LongPtr, _
    ByVal ulFlags As Long, _
    ByVal pvContext As LongPtr) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

OpenEncryptedFileRawW = ctypes.windll.advapi32.OpenEncryptedFileRawW
OpenEncryptedFileRawW.restype = wintypes.DWORD
OpenEncryptedFileRawW.argtypes = [
    wintypes.LPCWSTR,  # lpFileName : LPCWSTR
    wintypes.DWORD,  # ulFlags : DWORD
    ctypes.c_void_p,  # pvContext : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
OpenEncryptedFileRawW = Fiddle::Function.new(
  lib['OpenEncryptedFileRawW'],
  [
    Fiddle::TYPE_VOIDP,  # lpFileName : LPCWSTR
    -Fiddle::TYPE_INT,  # ulFlags : DWORD
    Fiddle::TYPE_VOIDP,  # pvContext : void** out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "advapi32")]
extern "system" {
    fn OpenEncryptedFileRawW(
        lpFileName: *const u16,  // LPCWSTR
        ulFlags: u32,  // DWORD
        pvContext: *mut *mut ()  // void** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ADVAPI32.dll", CharSet = CharSet.Unicode)]
public static extern uint OpenEncryptedFileRawW([MarshalAs(UnmanagedType.LPWStr)] string lpFileName, uint ulFlags, IntPtr pvContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_OpenEncryptedFileRawW' -Namespace Win32 -PassThru
# $api::OpenEncryptedFileRawW(lpFileName, ulFlags, pvContext)

#uselib "ADVAPI32.dll"
#func global OpenEncryptedFileRawW "OpenEncryptedFileRawW" wptr, wptr, wptr
; OpenEncryptedFileRawW lpFileName, ulFlags, pvContext   ; 戻り値は stat
; lpFileName : LPCWSTR -> "wptr"
; ulFlags : DWORD -> "wptr"
; pvContext : void** out -> "wptr"
; ※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 OpenEncryptedFileRawW "OpenEncryptedFileRawW" wstr, int, sptr
; res = OpenEncryptedFileRawW(lpFileName, ulFlags, pvContext)
; lpFileName : LPCWSTR -> "wstr"
; ulFlags : DWORD -> "int"
; pvContext : void** out -> "sptr"

; DWORD OpenEncryptedFileRawW(LPCWSTR lpFileName, DWORD ulFlags, void** pvContext)
#uselib "ADVAPI32.dll"
#cfunc global OpenEncryptedFileRawW "OpenEncryptedFileRawW" wstr, int, intptr
; res = OpenEncryptedFileRawW(lpFileName, ulFlags, pvContext)
; lpFileName : LPCWSTR -> "wstr"
; ulFlags : DWORD -> "int"
; pvContext : void** out -> "intptr"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procOpenEncryptedFileRawW = advapi32.NewProc("OpenEncryptedFileRawW")
)

// lpFileName (LPCWSTR), ulFlags (DWORD), pvContext (void** out)
r1, _, err := procOpenEncryptedFileRawW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpFileName))),
	uintptr(ulFlags),
	uintptr(pvContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function OpenEncryptedFileRawW(
  lpFileName: PWideChar;   // LPCWSTR
  ulFlags: DWORD;   // DWORD
  pvContext: Pointer   // void** out
): DWORD; stdcall;
  external 'ADVAPI32.dll' name 'OpenEncryptedFileRawW';

result := DllCall("ADVAPI32\OpenEncryptedFileRawW"
    , "WStr", lpFileName   ; LPCWSTR
    , "UInt", ulFlags   ; DWORD
    , "Ptr", pvContext   ; void** out
    , "UInt")   ; return: DWORD

●OpenEncryptedFileRawW(lpFileName, ulFlags, pvContext) = DLL("ADVAPI32.dll", "dword OpenEncryptedFileRawW(char*, dword, void*)")
# 呼び出し: OpenEncryptedFileRawW(lpFileName, ulFlags, pvContext)
# lpFileName : LPCWSTR -> "char*"
# ulFlags : DWORD -> "dword"
# pvContext : void** 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。