EvtNextChannelPath

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

BOOL EvtNextChannelPath(
    EVT_HANDLE ChannelEnum,
    DWORD ChannelPathBufferSize,
    LPWSTR ChannelPathBuffer,   // optional
    DWORD* ChannelPathBufferUsed
);

<DllImport("wevtapi.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function EvtNextChannelPath(
    ChannelEnum As IntPtr,   ' EVT_HANDLE
    ChannelPathBufferSize As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> ChannelPathBuffer As System.Text.StringBuilder,   ' LPWSTR optional, out
    <Out> ByRef ChannelPathBufferUsed As UInteger   ' DWORD* out
) As Boolean
End Function

' ChannelEnum : EVT_HANDLE
' ChannelPathBufferSize : DWORD
' ChannelPathBuffer : LPWSTR optional, out
' ChannelPathBufferUsed : DWORD* out
Declare PtrSafe Function EvtNextChannelPath Lib "wevtapi" ( _
    ByVal ChannelEnum As LongPtr, _
    ByVal ChannelPathBufferSize As Long, _
    ByVal ChannelPathBuffer As LongPtr, _
    ByRef ChannelPathBufferUsed 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

EvtNextChannelPath = ctypes.windll.wevtapi.EvtNextChannelPath
EvtNextChannelPath.restype = wintypes.BOOL
EvtNextChannelPath.argtypes = [
    ctypes.c_ssize_t,  # ChannelEnum : EVT_HANDLE
    wintypes.DWORD,  # ChannelPathBufferSize : DWORD
    wintypes.LPWSTR,  # ChannelPathBuffer : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # ChannelPathBufferUsed : DWORD* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('wevtapi.dll')
EvtNextChannelPath = Fiddle::Function.new(
  lib['EvtNextChannelPath'],
  [
    Fiddle::TYPE_INTPTR_T,  # ChannelEnum : EVT_HANDLE
    -Fiddle::TYPE_INT,  # ChannelPathBufferSize : DWORD
    Fiddle::TYPE_VOIDP,  # ChannelPathBuffer : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # ChannelPathBufferUsed : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "wevtapi")]
extern "system" {
    fn EvtNextChannelPath(
        ChannelEnum: isize,  // EVT_HANDLE
        ChannelPathBufferSize: u32,  // DWORD
        ChannelPathBuffer: *mut u16,  // LPWSTR optional, out
        ChannelPathBufferUsed: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("wevtapi.dll", SetLastError = true)]
public static extern bool EvtNextChannelPath(IntPtr ChannelEnum, uint ChannelPathBufferSize, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder ChannelPathBuffer, out uint ChannelPathBufferUsed);
"@
$api = Add-Type -MemberDefinition $sig -Name 'wevtapi_EvtNextChannelPath' -Namespace Win32 -PassThru
# $api::EvtNextChannelPath(ChannelEnum, ChannelPathBufferSize, ChannelPathBuffer, ChannelPathBufferUsed)

#uselib "wevtapi.dll"
#func global EvtNextChannelPath "EvtNextChannelPath" sptr, sptr, sptr, sptr
; EvtNextChannelPath ChannelEnum, ChannelPathBufferSize, varptr(ChannelPathBuffer), varptr(ChannelPathBufferUsed)   ; 戻り値は stat
; ChannelEnum : EVT_HANDLE -> "sptr"
; ChannelPathBufferSize : DWORD -> "sptr"
; ChannelPathBuffer : LPWSTR optional, out -> "sptr"
; ChannelPathBufferUsed : 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。

#uselib "wevtapi.dll"
#cfunc global EvtNextChannelPath "EvtNextChannelPath" sptr, int, var, var
; res = EvtNextChannelPath(ChannelEnum, ChannelPathBufferSize, ChannelPathBuffer, ChannelPathBufferUsed)
; ChannelEnum : EVT_HANDLE -> "sptr"
; ChannelPathBufferSize : DWORD -> "int"
; ChannelPathBuffer : LPWSTR optional, out -> "var"
; ChannelPathBufferUsed : 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。

; BOOL EvtNextChannelPath(EVT_HANDLE ChannelEnum, DWORD ChannelPathBufferSize, LPWSTR ChannelPathBuffer, DWORD* ChannelPathBufferUsed)
#uselib "wevtapi.dll"
#cfunc global EvtNextChannelPath "EvtNextChannelPath" intptr, int, var, var
; res = EvtNextChannelPath(ChannelEnum, ChannelPathBufferSize, ChannelPathBuffer, ChannelPathBufferUsed)
; ChannelEnum : EVT_HANDLE -> "intptr"
; ChannelPathBufferSize : DWORD -> "int"
; ChannelPathBuffer : LPWSTR optional, out -> "var"
; ChannelPathBufferUsed : 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 (
	wevtapi = windows.NewLazySystemDLL("wevtapi.dll")
	procEvtNextChannelPath = wevtapi.NewProc("EvtNextChannelPath")
)

// ChannelEnum (EVT_HANDLE), ChannelPathBufferSize (DWORD), ChannelPathBuffer (LPWSTR optional, out), ChannelPathBufferUsed (DWORD* out)
r1, _, err := procEvtNextChannelPath.Call(
	uintptr(ChannelEnum),
	uintptr(ChannelPathBufferSize),
	uintptr(ChannelPathBuffer),
	uintptr(ChannelPathBufferUsed),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function EvtNextChannelPath(
  ChannelEnum: NativeInt;   // EVT_HANDLE
  ChannelPathBufferSize: DWORD;   // DWORD
  ChannelPathBuffer: PWideChar;   // LPWSTR optional, out
  ChannelPathBufferUsed: Pointer   // DWORD* out
): BOOL; stdcall;
  external 'wevtapi.dll' name 'EvtNextChannelPath';

result := DllCall("wevtapi\EvtNextChannelPath"
    , "Ptr", ChannelEnum   ; EVT_HANDLE
    , "UInt", ChannelPathBufferSize   ; DWORD
    , "Ptr", ChannelPathBuffer   ; LPWSTR optional, out
    , "Ptr", ChannelPathBufferUsed   ; DWORD* out
    , "Int")   ; return: BOOL

●EvtNextChannelPath(ChannelEnum, ChannelPathBufferSize, ChannelPathBuffer, ChannelPathBufferUsed) = DLL("wevtapi.dll", "bool EvtNextChannelPath(int, dword, char*, void*)")
# 呼び出し: EvtNextChannelPath(ChannelEnum, ChannelPathBufferSize, ChannelPathBuffer, ChannelPathBufferUsed)
# ChannelEnum : EVT_HANDLE -> "int"
# ChannelPathBufferSize : DWORD -> "dword"
# ChannelPathBuffer : LPWSTR optional, out -> "char*"
# ChannelPathBufferUsed : 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)。