OpenEncryptedFileRawA

// ADVAPI32.dll  (ANSI / -A)
#include <windows.h>

DWORD OpenEncryptedFileRawA(
    LPCSTR lpFileName,
    DWORD ulFlags,
    void** pvContext
);

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

' lpFileName : LPCSTR
' ulFlags : DWORD
' pvContext : void** out
Declare PtrSafe Function OpenEncryptedFileRawA Lib "advapi32" ( _
    ByVal lpFileName As String, _
    ByVal ulFlags As Long, _
    ByVal pvContext 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

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

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
OpenEncryptedFileRawA = Fiddle::Function.new(
  lib['OpenEncryptedFileRawA'],
  [
    Fiddle::TYPE_VOIDP,  # lpFileName : LPCSTR
    -Fiddle::TYPE_INT,  # ulFlags : DWORD
    Fiddle::TYPE_VOIDP,  # pvContext : void** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "advapi32")]
extern "system" {
    fn OpenEncryptedFileRawA(
        lpFileName: *const u8,  // LPCSTR
        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.Ansi)]
public static extern uint OpenEncryptedFileRawA([MarshalAs(UnmanagedType.LPStr)] string lpFileName, uint ulFlags, IntPtr pvContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_OpenEncryptedFileRawA' -Namespace Win32 -PassThru
# $api::OpenEncryptedFileRawA(lpFileName, ulFlags, pvContext)

#uselib "ADVAPI32.dll"
#func global OpenEncryptedFileRawA "OpenEncryptedFileRawA" sptr, sptr, sptr
; OpenEncryptedFileRawA lpFileName, ulFlags, pvContext   ; 戻り値は stat
; lpFileName : LPCSTR -> "sptr"
; ulFlags : DWORD -> "sptr"
; pvContext : void** 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 OpenEncryptedFileRawA "OpenEncryptedFileRawA" str, int, sptr
; res = OpenEncryptedFileRawA(lpFileName, ulFlags, pvContext)
; lpFileName : LPCSTR -> "str"
; ulFlags : DWORD -> "int"
; pvContext : void** out -> "sptr"

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

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

var (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procOpenEncryptedFileRawA = advapi32.NewProc("OpenEncryptedFileRawA")
)

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

function OpenEncryptedFileRawA(
  lpFileName: PAnsiChar;   // LPCSTR
  ulFlags: DWORD;   // DWORD
  pvContext: Pointer   // void** out
): DWORD; stdcall;
  external 'ADVAPI32.dll' name 'OpenEncryptedFileRawA';

result := DllCall("ADVAPI32\OpenEncryptedFileRawA"
    , "AStr", lpFileName   ; LPCSTR
    , "UInt", ulFlags   ; DWORD
    , "Ptr", pvContext   ; void** out
    , "UInt")   ; return: DWORD

●OpenEncryptedFileRawA(lpFileName, ulFlags, pvContext) = DLL("ADVAPI32.dll", "dword OpenEncryptedFileRawA(char*, dword, void*)")
# 呼び出し: OpenEncryptedFileRawA(lpFileName, ulFlags, pvContext)
# lpFileName : LPCSTR -> "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)。