PdhOpenLogW

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

DWORD PdhOpenLogW(
    LPCWSTR szLogFileName,
    PDH_LOG dwAccessFlags,
    PDH_LOG_TYPE* lpdwLogType,
    PDH_HQUERY hQuery,   // optional
    DWORD dwMaxSize,
    LPCWSTR szUserCaption,   // optional
    PDH_HLOG* phLog
);

<DllImport("pdh.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function PdhOpenLogW(
    <MarshalAs(UnmanagedType.LPWStr)> szLogFileName As String,   ' LPCWSTR
    dwAccessFlags As UInteger,   ' PDH_LOG
    ByRef lpdwLogType As UInteger,   ' PDH_LOG_TYPE* in/out
    hQuery As IntPtr,   ' PDH_HQUERY optional
    dwMaxSize As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> szUserCaption As String,   ' LPCWSTR optional
    phLog As IntPtr   ' PDH_HLOG* out
) As UInteger
End Function

' szLogFileName : LPCWSTR
' dwAccessFlags : PDH_LOG
' lpdwLogType : PDH_LOG_TYPE* in/out
' hQuery : PDH_HQUERY optional
' dwMaxSize : DWORD
' szUserCaption : LPCWSTR optional
' phLog : PDH_HLOG* out
Declare PtrSafe Function PdhOpenLogW Lib "pdh" ( _
    ByVal szLogFileName As LongPtr, _
    ByVal dwAccessFlags As Long, _
    ByRef lpdwLogType As Long, _
    ByVal hQuery As LongPtr, _
    ByVal dwMaxSize As Long, _
    ByVal szUserCaption As LongPtr, _
    ByVal phLog 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

PdhOpenLogW = ctypes.windll.pdh.PdhOpenLogW
PdhOpenLogW.restype = wintypes.DWORD
PdhOpenLogW.argtypes = [
    wintypes.LPCWSTR,  # szLogFileName : LPCWSTR
    wintypes.DWORD,  # dwAccessFlags : PDH_LOG
    ctypes.c_void_p,  # lpdwLogType : PDH_LOG_TYPE* in/out
    wintypes.HANDLE,  # hQuery : PDH_HQUERY optional
    wintypes.DWORD,  # dwMaxSize : DWORD
    wintypes.LPCWSTR,  # szUserCaption : LPCWSTR optional
    ctypes.c_void_p,  # phLog : PDH_HLOG* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('pdh.dll')
PdhOpenLogW = Fiddle::Function.new(
  lib['PdhOpenLogW'],
  [
    Fiddle::TYPE_VOIDP,  # szLogFileName : LPCWSTR
    -Fiddle::TYPE_INT,  # dwAccessFlags : PDH_LOG
    Fiddle::TYPE_VOIDP,  # lpdwLogType : PDH_LOG_TYPE* in/out
    Fiddle::TYPE_VOIDP,  # hQuery : PDH_HQUERY optional
    -Fiddle::TYPE_INT,  # dwMaxSize : DWORD
    Fiddle::TYPE_VOIDP,  # szUserCaption : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # phLog : PDH_HLOG* out
  ],
  -Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "pdh")]
extern "system" {
    fn PdhOpenLogW(
        szLogFileName: *const u16,  // LPCWSTR
        dwAccessFlags: u32,  // PDH_LOG
        lpdwLogType: *mut u32,  // PDH_LOG_TYPE* in/out
        hQuery: *mut core::ffi::c_void,  // PDH_HQUERY optional
        dwMaxSize: u32,  // DWORD
        szUserCaption: *const u16,  // LPCWSTR optional
        phLog: *mut *mut core::ffi::c_void  // PDH_HLOG* out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("pdh.dll", CharSet = CharSet.Unicode)]
public static extern uint PdhOpenLogW([MarshalAs(UnmanagedType.LPWStr)] string szLogFileName, uint dwAccessFlags, ref uint lpdwLogType, IntPtr hQuery, uint dwMaxSize, [MarshalAs(UnmanagedType.LPWStr)] string szUserCaption, IntPtr phLog);
"@
$api = Add-Type -MemberDefinition $sig -Name 'pdh_PdhOpenLogW' -Namespace Win32 -PassThru
# $api::PdhOpenLogW(szLogFileName, dwAccessFlags, lpdwLogType, hQuery, dwMaxSize, szUserCaption, phLog)

#uselib "pdh.dll"
#func global PdhOpenLogW "PdhOpenLogW" wptr, wptr, wptr, wptr, wptr, wptr, wptr
; PdhOpenLogW szLogFileName, dwAccessFlags, lpdwLogType, hQuery, dwMaxSize, szUserCaption, phLog   ; 戻り値は stat
; szLogFileName : LPCWSTR -> "wptr"
; dwAccessFlags : PDH_LOG -> "wptr"
; lpdwLogType : PDH_LOG_TYPE* in/out -> "wptr"
; hQuery : PDH_HQUERY optional -> "wptr"
; dwMaxSize : DWORD -> "wptr"
; szUserCaption : LPCWSTR optional -> "wptr"
; phLog : PDH_HLOG* 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 "pdh.dll"
#cfunc global PdhOpenLogW "PdhOpenLogW" wstr, int, int, sptr, int, wstr, sptr
; res = PdhOpenLogW(szLogFileName, dwAccessFlags, lpdwLogType, hQuery, dwMaxSize, szUserCaption, phLog)
; szLogFileName : LPCWSTR -> "wstr"
; dwAccessFlags : PDH_LOG -> "int"
; lpdwLogType : PDH_LOG_TYPE* in/out -> "int"
; hQuery : PDH_HQUERY optional -> "sptr"
; dwMaxSize : DWORD -> "int"
; szUserCaption : LPCWSTR optional -> "wstr"
; phLog : PDH_HLOG* out -> "sptr"

; DWORD PdhOpenLogW(LPCWSTR szLogFileName, PDH_LOG dwAccessFlags, PDH_LOG_TYPE* lpdwLogType, PDH_HQUERY hQuery, DWORD dwMaxSize, LPCWSTR szUserCaption, PDH_HLOG* phLog)
#uselib "pdh.dll"
#cfunc global PdhOpenLogW "PdhOpenLogW" wstr, int, int, intptr, int, wstr, intptr
; res = PdhOpenLogW(szLogFileName, dwAccessFlags, lpdwLogType, hQuery, dwMaxSize, szUserCaption, phLog)
; szLogFileName : LPCWSTR -> "wstr"
; dwAccessFlags : PDH_LOG -> "int"
; lpdwLogType : PDH_LOG_TYPE* in/out -> "int"
; hQuery : PDH_HQUERY optional -> "intptr"
; dwMaxSize : DWORD -> "int"
; szUserCaption : LPCWSTR optional -> "wstr"
; phLog : PDH_HLOG* out -> "intptr"

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

var (
	pdh = windows.NewLazySystemDLL("pdh.dll")
	procPdhOpenLogW = pdh.NewProc("PdhOpenLogW")
)

// szLogFileName (LPCWSTR), dwAccessFlags (PDH_LOG), lpdwLogType (PDH_LOG_TYPE* in/out), hQuery (PDH_HQUERY optional), dwMaxSize (DWORD), szUserCaption (LPCWSTR optional), phLog (PDH_HLOG* out)
r1, _, err := procPdhOpenLogW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szLogFileName))),
	uintptr(dwAccessFlags),
	uintptr(lpdwLogType),
	uintptr(hQuery),
	uintptr(dwMaxSize),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szUserCaption))),
	uintptr(phLog),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function PdhOpenLogW(
  szLogFileName: PWideChar;   // LPCWSTR
  dwAccessFlags: DWORD;   // PDH_LOG
  lpdwLogType: Pointer;   // PDH_LOG_TYPE* in/out
  hQuery: THandle;   // PDH_HQUERY optional
  dwMaxSize: DWORD;   // DWORD
  szUserCaption: PWideChar;   // LPCWSTR optional
  phLog: Pointer   // PDH_HLOG* out
): DWORD; stdcall;
  external 'pdh.dll' name 'PdhOpenLogW';

result := DllCall("pdh\PdhOpenLogW"
    , "WStr", szLogFileName   ; LPCWSTR
    , "UInt", dwAccessFlags   ; PDH_LOG
    , "Ptr", lpdwLogType   ; PDH_LOG_TYPE* in/out
    , "Ptr", hQuery   ; PDH_HQUERY optional
    , "UInt", dwMaxSize   ; DWORD
    , "WStr", szUserCaption   ; LPCWSTR optional
    , "Ptr", phLog   ; PDH_HLOG* out
    , "UInt")   ; return: DWORD

●PdhOpenLogW(szLogFileName, dwAccessFlags, lpdwLogType, hQuery, dwMaxSize, szUserCaption, phLog) = DLL("pdh.dll", "dword PdhOpenLogW(char*, dword, void*, void*, dword, char*, void*)")
# 呼び出し: PdhOpenLogW(szLogFileName, dwAccessFlags, lpdwLogType, hQuery, dwMaxSize, szUserCaption, phLog)
# szLogFileName : LPCWSTR -> "char*"
# dwAccessFlags : PDH_LOG -> "dword"
# lpdwLogType : PDH_LOG_TYPE* in/out -> "void*"
# hQuery : PDH_HQUERY optional -> "void*"
# dwMaxSize : DWORD -> "dword"
# szUserCaption : LPCWSTR optional -> "char*"
# phLog : PDH_HLOG* 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。