ClearEventLogA

// ADVAPI32.dll  (ANSI / -A)
#include <windows.h>

BOOL ClearEventLogA(
    HANDLE hEventLog,
    LPCSTR lpBackupFileName   // optional
);

<DllImport("ADVAPI32.dll", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function ClearEventLogA(
    hEventLog As IntPtr,   ' HANDLE
    <MarshalAs(UnmanagedType.LPStr)> lpBackupFileName As String   ' LPCSTR optional
) As Boolean
End Function

' hEventLog : HANDLE
' lpBackupFileName : LPCSTR optional
Declare PtrSafe Function ClearEventLogA Lib "advapi32" ( _
    ByVal hEventLog As LongPtr, _
    ByVal lpBackupFileName As String) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ClearEventLogA = ctypes.windll.advapi32.ClearEventLogA
ClearEventLogA.restype = wintypes.BOOL
ClearEventLogA.argtypes = [
    wintypes.HANDLE,  # hEventLog : HANDLE
    wintypes.LPCSTR,  # lpBackupFileName : LPCSTR optional
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVAPI32.dll')
ClearEventLogA = Fiddle::Function.new(
  lib['ClearEventLogA'],
  [
    Fiddle::TYPE_VOIDP,  # hEventLog : HANDLE
    Fiddle::TYPE_VOIDP,  # lpBackupFileName : LPCSTR optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "advapi32")]
extern "system" {
    fn ClearEventLogA(
        hEventLog: *mut core::ffi::c_void,  // HANDLE
        lpBackupFileName: *const u8  // LPCSTR optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("ADVAPI32.dll", CharSet = CharSet.Ansi, SetLastError = true)]
public static extern bool ClearEventLogA(IntPtr hEventLog, [MarshalAs(UnmanagedType.LPStr)] string lpBackupFileName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVAPI32_ClearEventLogA' -Namespace Win32 -PassThru
# $api::ClearEventLogA(hEventLog, lpBackupFileName)

#uselib "ADVAPI32.dll"
#func global ClearEventLogA "ClearEventLogA" sptr, sptr
; ClearEventLogA hEventLog, lpBackupFileName   ; 戻り値は stat
; hEventLog : HANDLE -> "sptr"
; lpBackupFileName : LPCSTR optional -> "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 "ADVAPI32.dll"
#cfunc global ClearEventLogA "ClearEventLogA" sptr, str
; res = ClearEventLogA(hEventLog, lpBackupFileName)
; hEventLog : HANDLE -> "sptr"
; lpBackupFileName : LPCSTR optional -> "str"

; BOOL ClearEventLogA(HANDLE hEventLog, LPCSTR lpBackupFileName)
#uselib "ADVAPI32.dll"
#cfunc global ClearEventLogA "ClearEventLogA" intptr, str
; res = ClearEventLogA(hEventLog, lpBackupFileName)
; hEventLog : HANDLE -> "intptr"
; lpBackupFileName : LPCSTR optional -> "str"

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

var (
	advapi32 = windows.NewLazySystemDLL("ADVAPI32.dll")
	procClearEventLogA = advapi32.NewProc("ClearEventLogA")
)

// hEventLog (HANDLE), lpBackupFileName (LPCSTR optional)
r1, _, err := procClearEventLogA.Call(
	uintptr(hEventLog),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(lpBackupFileName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function ClearEventLogA(
  hEventLog: THandle;   // HANDLE
  lpBackupFileName: PAnsiChar   // LPCSTR optional
): BOOL; stdcall;
  external 'ADVAPI32.dll' name 'ClearEventLogA';

result := DllCall("ADVAPI32\ClearEventLogA"
    , "Ptr", hEventLog   ; HANDLE
    , "AStr", lpBackupFileName   ; LPCSTR optional
    , "Int")   ; return: BOOL

●ClearEventLogA(hEventLog, lpBackupFileName) = DLL("ADVAPI32.dll", "bool ClearEventLogA(void*, char*)")
# 呼び出し: ClearEventLogA(hEventLog, lpBackupFileName)
# hEventLog : HANDLE -> "void*"
# lpBackupFileName : LPCSTR optional -> "char*"
# 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)。