EcOpenSubscription

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

INT_PTR EcOpenSubscription(
    LPCWSTR SubscriptionName,
    DWORD AccessMask,
    DWORD Flags
);

<DllImport("WecApi.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function EcOpenSubscription(
    <MarshalAs(UnmanagedType.LPWStr)> SubscriptionName As String,   ' LPCWSTR
    AccessMask As UInteger,   ' DWORD
    Flags As UInteger   ' DWORD
) As IntPtr
End Function

' SubscriptionName : LPCWSTR
' AccessMask : DWORD
' Flags : DWORD
Declare PtrSafe Function EcOpenSubscription Lib "wecapi" ( _
    ByVal SubscriptionName As LongPtr, _
    ByVal AccessMask As Long, _
    ByVal Flags As Long) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

EcOpenSubscription = ctypes.windll.wecapi.EcOpenSubscription
EcOpenSubscription.restype = ctypes.c_ssize_t
EcOpenSubscription.argtypes = [
    wintypes.LPCWSTR,  # SubscriptionName : LPCWSTR
    wintypes.DWORD,  # AccessMask : DWORD
    wintypes.DWORD,  # Flags : DWORD
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WecApi.dll')
EcOpenSubscription = Fiddle::Function.new(
  lib['EcOpenSubscription'],
  [
    Fiddle::TYPE_VOIDP,  # SubscriptionName : LPCWSTR
    -Fiddle::TYPE_INT,  # AccessMask : DWORD
    -Fiddle::TYPE_INT,  # Flags : DWORD
  ],
  Fiddle::TYPE_INTPTR_T)

#[link(name = "wecapi")]
extern "system" {
    fn EcOpenSubscription(
        SubscriptionName: *const u16,  // LPCWSTR
        AccessMask: u32,  // DWORD
        Flags: u32  // DWORD
    ) -> isize;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WecApi.dll", SetLastError = true)]
public static extern IntPtr EcOpenSubscription([MarshalAs(UnmanagedType.LPWStr)] string SubscriptionName, uint AccessMask, uint Flags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WecApi_EcOpenSubscription' -Namespace Win32 -PassThru
# $api::EcOpenSubscription(SubscriptionName, AccessMask, Flags)

#uselib "WecApi.dll"
#func global EcOpenSubscription "EcOpenSubscription" sptr, sptr, sptr
; EcOpenSubscription SubscriptionName, AccessMask, Flags   ; 戻り値は stat
; SubscriptionName : LPCWSTR -> "sptr"
; AccessMask : DWORD -> "sptr"
; Flags : 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 "WecApi.dll"
#cfunc global EcOpenSubscription "EcOpenSubscription" wstr, int, int
; res = EcOpenSubscription(SubscriptionName, AccessMask, Flags)
; SubscriptionName : LPCWSTR -> "wstr"
; AccessMask : DWORD -> "int"
; Flags : DWORD -> "int"

; INT_PTR EcOpenSubscription(LPCWSTR SubscriptionName, DWORD AccessMask, DWORD Flags)
#uselib "WecApi.dll"
#cfunc global EcOpenSubscription "EcOpenSubscription" wstr, int, int
; res = EcOpenSubscription(SubscriptionName, AccessMask, Flags)
; SubscriptionName : LPCWSTR -> "wstr"
; AccessMask : DWORD -> "int"
; Flags : DWORD -> "int"

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

var (
	wecapi = windows.NewLazySystemDLL("WecApi.dll")
	procEcOpenSubscription = wecapi.NewProc("EcOpenSubscription")
)

// SubscriptionName (LPCWSTR), AccessMask (DWORD), Flags (DWORD)
r1, _, err := procEcOpenSubscription.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(SubscriptionName))),
	uintptr(AccessMask),
	uintptr(Flags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT_PTR

function EcOpenSubscription(
  SubscriptionName: PWideChar;   // LPCWSTR
  AccessMask: DWORD;   // DWORD
  Flags: DWORD   // DWORD
): NativeInt; stdcall;
  external 'WecApi.dll' name 'EcOpenSubscription';

result := DllCall("WecApi\EcOpenSubscription"
    , "WStr", SubscriptionName   ; LPCWSTR
    , "UInt", AccessMask   ; DWORD
    , "UInt", Flags   ; DWORD
    , "Ptr")   ; return: INT_PTR

●EcOpenSubscription(SubscriptionName, AccessMask, Flags) = DLL("WecApi.dll", "int EcOpenSubscription(char*, dword, dword)")
# 呼び出し: EcOpenSubscription(SubscriptionName, AccessMask, Flags)
# SubscriptionName : LPCWSTR -> "char*"
# AccessMask : DWORD -> "dword"
# Flags : 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)。