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OpenTraceW

関数
イベントトレースログファイルまたはセッションを消費用に開く(Unicode版)。
DLLADVAPI32.dll文字セットUnicode (-W)呼出規約winapiSetLastErrorあり対応OSWindows 2000 以降
📘 Microsoft Learn (日本語) · English

シグネチャ

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

PROCESSTRACE_HANDLE OpenTraceW(
    EVENT_TRACE_LOGFILEW* Logfile
);

パラメーター

名前型方向
LogfileEVENT_TRACE_LOGFILEW*inout

戻り値の型: PROCESSTRACE_HANDLE

各言語での呼び出し定義

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

PROCESSTRACE_HANDLE OpenTraceW(
    EVENT_TRACE_LOGFILEW* Logfile
);
[DllImport("ADVAPI32.dll", CharSet = CharSet.Unicode, SetLastError = true, ExactSpelling = true)]
static extern PROCESSTRACE_HANDLE OpenTraceW(
    IntPtr Logfile   // EVENT_TRACE_LOGFILEW* in/out
);
<DllImport("ADVAPI32.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function OpenTraceW(
    Logfile As IntPtr   ' EVENT_TRACE_LOGFILEW* in/out
) As PROCESSTRACE_HANDLE
End Function
' Logfile : EVENT_TRACE_LOGFILEW* in/out
Declare PtrSafe Function OpenTraceW Lib "advapi32" ( _
    ByVal Logfile As LongPtr) As LongPtr
' 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

OpenTraceW = ctypes.windll.advapi32.OpenTraceW
OpenTraceW.restype = ctypes.c_void_p
OpenTraceW.argtypes = [
    ctypes.c_void_p,  # Logfile : EVENT_TRACE_LOGFILEW* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
OpenTraceW = Fiddle::Function.new(
  lib['OpenTraceW'],
  [
    Fiddle::TYPE_VOIDP,  # Logfile : EVENT_TRACE_LOGFILEW* in/out
  ],
  Fiddle::TYPE_VOIDP)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"
#[link(name = "advapi32")]
extern "system" {
    fn OpenTraceW(
        Logfile: *mut EVENT_TRACE_LOGFILEW  // EVENT_TRACE_LOGFILEW* in/out
    ) -> PROCESSTRACE_HANDLE;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("ADVAPI32.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern PROCESSTRACE_HANDLE OpenTraceW(IntPtr Logfile);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_OpenTraceW' -Namespace Win32 -PassThru
# $api::OpenTraceW(Logfile)
#uselib "ADVAPI32.dll"
#func global OpenTraceW "OpenTraceW" wptr
; OpenTraceW varptr(Logfile)   ; 戻り値は stat
; Logfile : EVENT_TRACE_LOGFILEW* in/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。
出力引数: 
#uselib "ADVAPI32.dll"
#cfunc global OpenTraceW "OpenTraceW" var
; res = OpenTraceW(Logfile)
; Logfile : EVENT_TRACE_LOGFILEW* in/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: 
; PROCESSTRACE_HANDLE OpenTraceW(EVENT_TRACE_LOGFILEW* Logfile)
#uselib "ADVAPI32.dll"
#cfunc global OpenTraceW "OpenTraceW" var
; res = OpenTraceW(Logfile)
; Logfile : EVENT_TRACE_LOGFILEW* in/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")
	procOpenTraceW = advapi32.NewProc("OpenTraceW")
)

// Logfile (EVENT_TRACE_LOGFILEW* in/out)
r1, _, err := procOpenTraceW.Call(
	uintptr(Logfile),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // PROCESSTRACE_HANDLE
function OpenTraceW(
  Logfile: Pointer   // EVENT_TRACE_LOGFILEW* in/out
): PROCESSTRACE_HANDLE; stdcall;
  external 'ADVAPI32.dll' name 'OpenTraceW';
result := DllCall("ADVAPI32\OpenTraceW"
    , "Ptr", Logfile   ; EVENT_TRACE_LOGFILEW* in/out
    , "Ptr")   ; return: PROCESSTRACE_HANDLE
●OpenTraceW(Logfile) = DLL("ADVAPI32.dll", "void* OpenTraceW(void*)")
# 呼び出し: OpenTraceW(Logfile)
# Logfile : EVENT_TRACE_LOGFILEW* in/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。