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EcGetSubscriptionRunTimeStatus

関数
サブスクリプションの実行時状態を取得する。
DLLWecApi.dll呼出規約winapi対応OSWindows Vista 以降
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シグネチャ

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

BOOL EcGetSubscriptionRunTimeStatus(
    LPCWSTR SubscriptionName,
    EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID StatusInfoId,
    LPCWSTR EventSourceName,
    DWORD Flags,
    DWORD StatusValueBufferSize,
    EC_VARIANT* StatusValueBuffer,
    DWORD* StatusValueBufferUsed
);

パラメーター

名前型方向説明
SubscriptionNameLPCWSTRin状態を取得するサブスクリプションの名前を指す文字列。
StatusInfoIdEC_SUBSCRIPTION_RUNTIME_STATUS_INFO_IDin取得する実行時状態の種別を示すEC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID列挙値。
EventSourceNameLPCWSTRin状態を取得する個別イベントソース名。NULL可でサブスクリプション全体を対象とする。
FlagsDWORDin予約済みで0を指定する。将来の拡張用フラグである。
StatusValueBufferSizeDWORDinStatusValueBufferのサイズをバイト単位で指定する。必要量問い合わせ時は0可。
StatusValueBufferEC_VARIANT*inout取得した状態値を格納するEC_VARIANT構造体へのバッファ。NULL可で必要量取得に使う。
StatusValueBufferUsedDWORD*out実際に使用された、または必要なバイト数を受け取る出力ポインタ。

戻り値の型: BOOL

各言語での呼び出し定義

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

BOOL EcGetSubscriptionRunTimeStatus(
    LPCWSTR SubscriptionName,
    EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID StatusInfoId,
    LPCWSTR EventSourceName,
    DWORD Flags,
    DWORD StatusValueBufferSize,
    EC_VARIANT* StatusValueBuffer,
    DWORD* StatusValueBufferUsed
);
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WecApi.dll", ExactSpelling = true)]
static extern bool EcGetSubscriptionRunTimeStatus(
    [MarshalAs(UnmanagedType.LPWStr)] string SubscriptionName,   // LPCWSTR
    int StatusInfoId,   // EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
    [MarshalAs(UnmanagedType.LPWStr)] string EventSourceName,   // LPCWSTR
    uint Flags,   // DWORD
    uint StatusValueBufferSize,   // DWORD
    IntPtr StatusValueBuffer,   // EC_VARIANT* in/out
    out uint StatusValueBufferUsed   // DWORD* out
);
<DllImport("WecApi.dll", ExactSpelling:=True)>
Public Shared Function EcGetSubscriptionRunTimeStatus(
    <MarshalAs(UnmanagedType.LPWStr)> SubscriptionName As String,   ' LPCWSTR
    StatusInfoId As Integer,   ' EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
    <MarshalAs(UnmanagedType.LPWStr)> EventSourceName As String,   ' LPCWSTR
    Flags As UInteger,   ' DWORD
    StatusValueBufferSize As UInteger,   ' DWORD
    StatusValueBuffer As IntPtr,   ' EC_VARIANT* in/out
    <Out> ByRef StatusValueBufferUsed As UInteger   ' DWORD* out
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function
' SubscriptionName : LPCWSTR
' StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
' EventSourceName : LPCWSTR
' Flags : DWORD
' StatusValueBufferSize : DWORD
' StatusValueBuffer : EC_VARIANT* in/out
' StatusValueBufferUsed : DWORD* out
Declare PtrSafe Function EcGetSubscriptionRunTimeStatus Lib "wecapi" ( _
    ByVal SubscriptionName As LongPtr, _
    ByVal StatusInfoId As Long, _
    ByVal EventSourceName As LongPtr, _
    ByVal Flags As Long, _
    ByVal StatusValueBufferSize As Long, _
    ByVal StatusValueBuffer As LongPtr, _
    ByRef StatusValueBufferUsed 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

EcGetSubscriptionRunTimeStatus = ctypes.windll.wecapi.EcGetSubscriptionRunTimeStatus
EcGetSubscriptionRunTimeStatus.restype = wintypes.BOOL
EcGetSubscriptionRunTimeStatus.argtypes = [
    wintypes.LPCWSTR,  # SubscriptionName : LPCWSTR
    ctypes.c_int,  # StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
    wintypes.LPCWSTR,  # EventSourceName : LPCWSTR
    wintypes.DWORD,  # Flags : DWORD
    wintypes.DWORD,  # StatusValueBufferSize : DWORD
    ctypes.c_void_p,  # StatusValueBuffer : EC_VARIANT* in/out
    ctypes.POINTER(wintypes.DWORD),  # StatusValueBufferUsed : DWORD* out
]
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WecApi.dll')
EcGetSubscriptionRunTimeStatus = Fiddle::Function.new(
  lib['EcGetSubscriptionRunTimeStatus'],
  [
    Fiddle::TYPE_VOIDP,  # SubscriptionName : LPCWSTR
    Fiddle::TYPE_INT,  # StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
    Fiddle::TYPE_VOIDP,  # EventSourceName : LPCWSTR
    -Fiddle::TYPE_INT,  # Flags : DWORD
    -Fiddle::TYPE_INT,  # StatusValueBufferSize : DWORD
    Fiddle::TYPE_VOIDP,  # StatusValueBuffer : EC_VARIANT* in/out
    Fiddle::TYPE_VOIDP,  # StatusValueBufferUsed : DWORD* out
  ],
  Fiddle::TYPE_INT)
#[link(name = "wecapi")]
extern "system" {
    fn EcGetSubscriptionRunTimeStatus(
        SubscriptionName: *const u16,  // LPCWSTR
        StatusInfoId: i32,  // EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
        EventSourceName: *const u16,  // LPCWSTR
        Flags: u32,  // DWORD
        StatusValueBufferSize: u32,  // DWORD
        StatusValueBuffer: *mut EC_VARIANT,  // EC_VARIANT* in/out
        StatusValueBufferUsed: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WecApi.dll")]
public static extern bool EcGetSubscriptionRunTimeStatus([MarshalAs(UnmanagedType.LPWStr)] string SubscriptionName, int StatusInfoId, [MarshalAs(UnmanagedType.LPWStr)] string EventSourceName, uint Flags, uint StatusValueBufferSize, IntPtr StatusValueBuffer, out uint StatusValueBufferUsed);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WecApi_EcGetSubscriptionRunTimeStatus' -Namespace Win32 -PassThru
# $api::EcGetSubscriptionRunTimeStatus(SubscriptionName, StatusInfoId, EventSourceName, Flags, StatusValueBufferSize, StatusValueBuffer, StatusValueBufferUsed)
#uselib "WecApi.dll"
#func global EcGetSubscriptionRunTimeStatus "EcGetSubscriptionRunTimeStatus" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; EcGetSubscriptionRunTimeStatus SubscriptionName, StatusInfoId, EventSourceName, Flags, StatusValueBufferSize, varptr(StatusValueBuffer), varptr(StatusValueBufferUsed)   ; 戻り値は stat
; SubscriptionName : LPCWSTR -> "sptr"
; StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID -> "sptr"
; EventSourceName : LPCWSTR -> "sptr"
; Flags : DWORD -> "sptr"
; StatusValueBufferSize : DWORD -> "sptr"
; StatusValueBuffer : EC_VARIANT* in/out -> "sptr"
; StatusValueBufferUsed : DWORD* 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。
出力引数: 
#uselib "WecApi.dll"
#cfunc global EcGetSubscriptionRunTimeStatus "EcGetSubscriptionRunTimeStatus" wstr, int, wstr, int, int, var, var
; res = EcGetSubscriptionRunTimeStatus(SubscriptionName, StatusInfoId, EventSourceName, Flags, StatusValueBufferSize, StatusValueBuffer, StatusValueBufferUsed)
; SubscriptionName : LPCWSTR -> "wstr"
; StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID -> "int"
; EventSourceName : LPCWSTR -> "wstr"
; Flags : DWORD -> "int"
; StatusValueBufferSize : DWORD -> "int"
; StatusValueBuffer : EC_VARIANT* in/out -> "var"
; StatusValueBufferUsed : DWORD* 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。
出力引数: 
; BOOL EcGetSubscriptionRunTimeStatus(LPCWSTR SubscriptionName, EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID StatusInfoId, LPCWSTR EventSourceName, DWORD Flags, DWORD StatusValueBufferSize, EC_VARIANT* StatusValueBuffer, DWORD* StatusValueBufferUsed)
#uselib "WecApi.dll"
#cfunc global EcGetSubscriptionRunTimeStatus "EcGetSubscriptionRunTimeStatus" wstr, int, wstr, int, int, var, var
; res = EcGetSubscriptionRunTimeStatus(SubscriptionName, StatusInfoId, EventSourceName, Flags, StatusValueBufferSize, StatusValueBuffer, StatusValueBufferUsed)
; SubscriptionName : LPCWSTR -> "wstr"
; StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID -> "int"
; EventSourceName : LPCWSTR -> "wstr"
; Flags : DWORD -> "int"
; StatusValueBufferSize : DWORD -> "int"
; StatusValueBuffer : EC_VARIANT* in/out -> "var"
; StatusValueBufferUsed : DWORD* 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 (
	wecapi = windows.NewLazySystemDLL("WecApi.dll")
	procEcGetSubscriptionRunTimeStatus = wecapi.NewProc("EcGetSubscriptionRunTimeStatus")
)

// SubscriptionName (LPCWSTR), StatusInfoId (EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID), EventSourceName (LPCWSTR), Flags (DWORD), StatusValueBufferSize (DWORD), StatusValueBuffer (EC_VARIANT* in/out), StatusValueBufferUsed (DWORD* out)
r1, _, err := procEcGetSubscriptionRunTimeStatus.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(SubscriptionName))),
	uintptr(StatusInfoId),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(EventSourceName))),
	uintptr(Flags),
	uintptr(StatusValueBufferSize),
	uintptr(StatusValueBuffer),
	uintptr(StatusValueBufferUsed),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL
function EcGetSubscriptionRunTimeStatus(
  SubscriptionName: PWideChar;   // LPCWSTR
  StatusInfoId: Integer;   // EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
  EventSourceName: PWideChar;   // LPCWSTR
  Flags: DWORD;   // DWORD
  StatusValueBufferSize: DWORD;   // DWORD
  StatusValueBuffer: Pointer;   // EC_VARIANT* in/out
  StatusValueBufferUsed: Pointer   // DWORD* out
): BOOL; stdcall;
  external 'WecApi.dll' name 'EcGetSubscriptionRunTimeStatus';
result := DllCall("WecApi\EcGetSubscriptionRunTimeStatus"
    , "WStr", SubscriptionName   ; LPCWSTR
    , "Int", StatusInfoId   ; EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
    , "WStr", EventSourceName   ; LPCWSTR
    , "UInt", Flags   ; DWORD
    , "UInt", StatusValueBufferSize   ; DWORD
    , "Ptr", StatusValueBuffer   ; EC_VARIANT* in/out
    , "Ptr", StatusValueBufferUsed   ; DWORD* out
    , "Int")   ; return: BOOL
●EcGetSubscriptionRunTimeStatus(SubscriptionName, StatusInfoId, EventSourceName, Flags, StatusValueBufferSize, StatusValueBuffer, StatusValueBufferUsed) = DLL("WecApi.dll", "bool EcGetSubscriptionRunTimeStatus(char*, int, char*, dword, dword, void*, void*)")
# 呼び出し: EcGetSubscriptionRunTimeStatus(SubscriptionName, StatusInfoId, EventSourceName, Flags, StatusValueBufferSize, StatusValueBuffer, StatusValueBufferUsed)
# SubscriptionName : LPCWSTR -> "char*"
# StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID -> "int"
# EventSourceName : LPCWSTR -> "char*"
# Flags : DWORD -> "dword"
# StatusValueBufferSize : DWORD -> "dword"
# StatusValueBuffer : EC_VARIANT* in/out -> "void*"
# StatusValueBufferUsed : DWORD* 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)。
const std = @import("std");

extern "wecapi" fn EcGetSubscriptionRunTimeStatus(
    SubscriptionName: [*c]const u16, // LPCWSTR
    StatusInfoId: i32, // EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
    EventSourceName: [*c]const u16, // LPCWSTR
    Flags: u32, // DWORD
    StatusValueBufferSize: u32, // DWORD
    StatusValueBuffer: [*c]EC_VARIANT, // EC_VARIANT* in/out
    StatusValueBufferUsed: [*c]u32 // DWORD* out
) callconv(std.os.windows.WINAPI) i32;
proc EcGetSubscriptionRunTimeStatus(
    SubscriptionName: WideCString,  # LPCWSTR
    StatusInfoId: int32,  # EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
    EventSourceName: WideCString,  # LPCWSTR
    Flags: uint32,  # DWORD
    StatusValueBufferSize: uint32,  # DWORD
    StatusValueBuffer: ptr EC_VARIANT,  # EC_VARIANT* in/out
    StatusValueBufferUsed: ptr uint32  # DWORD* out
): int32 {.importc: "EcGetSubscriptionRunTimeStatus", stdcall, dynlib: "WecApi.dll".}
pragma(lib, "wecapi");
extern(Windows)
int EcGetSubscriptionRunTimeStatus(
    const(wchar)* SubscriptionName,   // LPCWSTR
    int StatusInfoId,   // EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
    const(wchar)* EventSourceName,   // LPCWSTR
    uint Flags,   // DWORD
    uint StatusValueBufferSize,   // DWORD
    EC_VARIANT* StatusValueBuffer,   // EC_VARIANT* in/out
    uint* StatusValueBufferUsed   // DWORD* out
);
ccall((:EcGetSubscriptionRunTimeStatus, "WecApi.dll"), stdcall, Int32,
      (Cwstring, Int32, Cwstring, UInt32, UInt32, Ptr{EC_VARIANT}, Ptr{UInt32}),
      SubscriptionName, StatusInfoId, EventSourceName, Flags, StatusValueBufferSize, StatusValueBuffer, StatusValueBufferUsed)
# SubscriptionName : LPCWSTR -> Cwstring
# StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID -> Int32
# EventSourceName : LPCWSTR -> Cwstring
# Flags : DWORD -> UInt32
# StatusValueBufferSize : DWORD -> UInt32
# StatusValueBuffer : EC_VARIANT* in/out -> Ptr{EC_VARIANT}
# StatusValueBufferUsed : DWORD* out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
int32_t EcGetSubscriptionRunTimeStatus(
    const uint16_t* SubscriptionName,
    int32_t StatusInfoId,
    const uint16_t* EventSourceName,
    uint32_t Flags,
    uint32_t StatusValueBufferSize,
    void* StatusValueBuffer,
    uint32_t* StatusValueBufferUsed);
]]
local wecapi = ffi.load("wecapi")
-- wecapi.EcGetSubscriptionRunTimeStatus(SubscriptionName, StatusInfoId, EventSourceName, Flags, StatusValueBufferSize, StatusValueBuffer, StatusValueBufferUsed)
-- SubscriptionName : LPCWSTR
-- StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
-- EventSourceName : LPCWSTR
-- Flags : DWORD
-- StatusValueBufferSize : DWORD
-- StatusValueBuffer : EC_VARIANT* in/out
-- StatusValueBufferUsed : DWORD* out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
const koffi = require('koffi');
const lib = koffi.load('WecApi.dll');
const EcGetSubscriptionRunTimeStatus = lib.func('__stdcall', 'EcGetSubscriptionRunTimeStatus', 'int32_t', ['str16', 'int32_t', 'str16', 'uint32_t', 'uint32_t', 'void *', 'uint32_t *']);
// EcGetSubscriptionRunTimeStatus(SubscriptionName, StatusInfoId, EventSourceName, Flags, StatusValueBufferSize, StatusValueBuffer, StatusValueBufferUsed)
// SubscriptionName : LPCWSTR -> 'str16'
// StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID -> 'int32_t'
// EventSourceName : LPCWSTR -> 'str16'
// Flags : DWORD -> 'uint32_t'
// StatusValueBufferSize : DWORD -> 'uint32_t'
// StatusValueBuffer : EC_VARIANT* in/out -> 'void *'
// StatusValueBufferUsed : DWORD* out -> 'uint32_t *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。
const lib = Deno.dlopen("WecApi.dll", {
  EcGetSubscriptionRunTimeStatus: { parameters: ["buffer", "i32", "buffer", "u32", "u32", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.EcGetSubscriptionRunTimeStatus(SubscriptionName, StatusInfoId, EventSourceName, Flags, StatusValueBufferSize, StatusValueBuffer, StatusValueBufferUsed)
// SubscriptionName : LPCWSTR -> "buffer"
// StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID -> "i32"
// EventSourceName : LPCWSTR -> "buffer"
// Flags : DWORD -> "u32"
// StatusValueBufferSize : DWORD -> "u32"
// StatusValueBuffer : EC_VARIANT* in/out -> "pointer"
// StatusValueBufferUsed : DWORD* out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。
<?php
$ffi = FFI::cdef(<<<C
int32_t EcGetSubscriptionRunTimeStatus(
    const uint16_t* SubscriptionName,
    int32_t StatusInfoId,
    const uint16_t* EventSourceName,
    uint32_t Flags,
    uint32_t StatusValueBufferSize,
    void* StatusValueBuffer,
    uint32_t* StatusValueBufferUsed);
C, "WecApi.dll");
// $ffi->EcGetSubscriptionRunTimeStatus(SubscriptionName, StatusInfoId, EventSourceName, Flags, StatusValueBufferSize, StatusValueBuffer, StatusValueBufferUsed);
// SubscriptionName : LPCWSTR
// StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
// EventSourceName : LPCWSTR
// Flags : DWORD
// StatusValueBufferSize : DWORD
// StatusValueBuffer : EC_VARIANT* in/out
// StatusValueBufferUsed : DWORD* out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。
import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Wecapi extends StdCallLibrary {
    Wecapi INSTANCE = Native.load("wecapi", Wecapi.class);
    boolean EcGetSubscriptionRunTimeStatus(
        WString SubscriptionName,   // LPCWSTR
        int StatusInfoId,   // EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
        WString EventSourceName,   // LPCWSTR
        int Flags,   // DWORD
        int StatusValueBufferSize,   // DWORD
        Pointer StatusValueBuffer,   // EC_VARIANT* in/out
        IntByReference StatusValueBufferUsed   // DWORD* out
    );
}
@[Link("wecapi")]
lib LibWecApi
  fun EcGetSubscriptionRunTimeStatus = EcGetSubscriptionRunTimeStatus(
    SubscriptionName : UInt16*,   # LPCWSTR
    StatusInfoId : Int32,   # EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
    EventSourceName : UInt16*,   # LPCWSTR
    Flags : UInt32,   # DWORD
    StatusValueBufferSize : UInt32,   # DWORD
    StatusValueBuffer : EC_VARIANT*,   # EC_VARIANT* in/out
    StatusValueBufferUsed : UInt32*   # DWORD* out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。
import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef EcGetSubscriptionRunTimeStatusNative = Int32 Function(Pointer<Utf16>, Int32, Pointer<Utf16>, Uint32, Uint32, Pointer<Void>, Pointer<Uint32>);
typedef EcGetSubscriptionRunTimeStatusDart = int Function(Pointer<Utf16>, int, Pointer<Utf16>, int, int, Pointer<Void>, Pointer<Uint32>);
final EcGetSubscriptionRunTimeStatus = DynamicLibrary.open('WecApi.dll')
    .lookupFunction<EcGetSubscriptionRunTimeStatusNative, EcGetSubscriptionRunTimeStatusDart>('EcGetSubscriptionRunTimeStatus');
// SubscriptionName : LPCWSTR -> Pointer<Utf16>
// StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID -> Int32
// EventSourceName : LPCWSTR -> Pointer<Utf16>
// Flags : DWORD -> Uint32
// StatusValueBufferSize : DWORD -> Uint32
// StatusValueBuffer : EC_VARIANT* in/out -> Pointer<Void>
// StatusValueBufferUsed : DWORD* out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function EcGetSubscriptionRunTimeStatus(
  SubscriptionName: PWideChar;   // LPCWSTR
  StatusInfoId: Integer;   // EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
  EventSourceName: PWideChar;   // LPCWSTR
  Flags: DWORD;   // DWORD
  StatusValueBufferSize: DWORD;   // DWORD
  StatusValueBuffer: Pointer;   // EC_VARIANT* in/out
  StatusValueBufferUsed: Pointer   // DWORD* out
): BOOL; stdcall;
  external 'WecApi.dll' name 'EcGetSubscriptionRunTimeStatus';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "EcGetSubscriptionRunTimeStatus"
  c_EcGetSubscriptionRunTimeStatus :: CWString -> Int32 -> CWString -> Word32 -> Word32 -> Ptr () -> Ptr Word32 -> IO CInt
-- SubscriptionName : LPCWSTR -> CWString
-- StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID -> Int32
-- EventSourceName : LPCWSTR -> CWString
-- Flags : DWORD -> Word32
-- StatusValueBufferSize : DWORD -> Word32
-- StatusValueBuffer : EC_VARIANT* in/out -> Ptr ()
-- StatusValueBufferUsed : DWORD* out -> Ptr Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。
open Ctypes
open Foreign

let ecgetsubscriptionruntimestatus =
  foreign "EcGetSubscriptionRunTimeStatus"
    ((ptr uint16_t) @-> int32_t @-> (ptr uint16_t) @-> uint32_t @-> uint32_t @-> (ptr void) @-> (ptr uint32_t) @-> returning int32_t)
(* SubscriptionName : LPCWSTR -> (ptr uint16_t) *)
(* StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID -> int32_t *)
(* EventSourceName : LPCWSTR -> (ptr uint16_t) *)
(* Flags : DWORD -> uint32_t *)
(* StatusValueBufferSize : DWORD -> uint32_t *)
(* StatusValueBuffer : EC_VARIANT* in/out -> (ptr void) *)
(* StatusValueBufferUsed : DWORD* out -> (ptr uint32_t) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)
(cffi:define-foreign-library wecapi (t "WecApi.dll"))
(cffi:use-foreign-library wecapi)

(cffi:defcfun ("EcGetSubscriptionRunTimeStatus" ec-get-subscription-run-time-status :convention :stdcall) :int32
  (subscription-name (:string :encoding :utf-16le))   ; LPCWSTR
  (status-info-id :int32)   ; EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID
  (event-source-name (:string :encoding :utf-16le))   ; LPCWSTR
  (flags :uint32)   ; DWORD
  (status-value-buffer-size :uint32)   ; DWORD
  (status-value-buffer :pointer)   ; EC_VARIANT* in/out
  (status-value-buffer-used :pointer))   ; DWORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $EcGetSubscriptionRunTimeStatus = Win32::API::More->new('WecApi',
    'BOOL EcGetSubscriptionRunTimeStatus(LPCWSTR SubscriptionName, int StatusInfoId, LPCWSTR EventSourceName, DWORD Flags, DWORD StatusValueBufferSize, LPVOID StatusValueBuffer, LPVOID StatusValueBufferUsed)');
# my $ret = $EcGetSubscriptionRunTimeStatus->Call($SubscriptionName, $StatusInfoId, $EventSourceName, $Flags, $StatusValueBufferSize, $StatusValueBuffer, $StatusValueBufferUsed);
# SubscriptionName : LPCWSTR -> LPCWSTR
# StatusInfoId : EC_SUBSCRIPTION_RUNTIME_STATUS_INFO_ID -> int
# EventSourceName : LPCWSTR -> LPCWSTR
# Flags : DWORD -> DWORD
# StatusValueBufferSize : DWORD -> DWORD
# StatusValueBuffer : EC_VARIANT* in/out -> LPVOID
# StatusValueBufferUsed : DWORD* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

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