DeleteLogFile

// clfsw32.dll
#include <windows.h>

BOOL DeleteLogFile(
    LPCWSTR pszLogFileName,
    void* pvReserved
);

<DllImport("clfsw32.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function DeleteLogFile(
    <MarshalAs(UnmanagedType.LPWStr)> pszLogFileName As String,   ' LPCWSTR
    pvReserved As IntPtr   ' void* in/out
) As Boolean
End Function

' pszLogFileName : LPCWSTR
' pvReserved : void* in/out
Declare PtrSafe Function DeleteLogFile Lib "clfsw32" ( _
    ByVal pszLogFileName As LongPtr, _
    ByVal pvReserved As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

DeleteLogFile = ctypes.windll.clfsw32.DeleteLogFile
DeleteLogFile.restype = wintypes.BOOL
DeleteLogFile.argtypes = [
    wintypes.LPCWSTR,  # pszLogFileName : LPCWSTR
    ctypes.POINTER(None),  # pvReserved : void* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('clfsw32.dll')
DeleteLogFile = Fiddle::Function.new(
  lib['DeleteLogFile'],
  [
    Fiddle::TYPE_VOIDP,  # pszLogFileName : LPCWSTR
    Fiddle::TYPE_VOIDP,  # pvReserved : void* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "clfsw32")]
extern "system" {
    fn DeleteLogFile(
        pszLogFileName: *const u16,  // LPCWSTR
        pvReserved: *mut ()  // void* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("clfsw32.dll", SetLastError = true)]
public static extern bool DeleteLogFile([MarshalAs(UnmanagedType.LPWStr)] string pszLogFileName, IntPtr pvReserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'clfsw32_DeleteLogFile' -Namespace Win32 -PassThru
# $api::DeleteLogFile(pszLogFileName, pvReserved)

#uselib "clfsw32.dll"
#func global DeleteLogFile "DeleteLogFile" sptr, sptr
; DeleteLogFile pszLogFileName, pvReserved   ; 戻り値は stat
; pszLogFileName : LPCWSTR -> "sptr"
; pvReserved : void* in/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 "clfsw32.dll"
#cfunc global DeleteLogFile "DeleteLogFile" wstr, sptr
; res = DeleteLogFile(pszLogFileName, pvReserved)
; pszLogFileName : LPCWSTR -> "wstr"
; pvReserved : void* in/out -> "sptr"

; BOOL DeleteLogFile(LPCWSTR pszLogFileName, void* pvReserved)
#uselib "clfsw32.dll"
#cfunc global DeleteLogFile "DeleteLogFile" wstr, intptr
; res = DeleteLogFile(pszLogFileName, pvReserved)
; pszLogFileName : LPCWSTR -> "wstr"
; pvReserved : void* in/out -> "intptr"

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

var (
	clfsw32 = windows.NewLazySystemDLL("clfsw32.dll")
	procDeleteLogFile = clfsw32.NewProc("DeleteLogFile")
)

// pszLogFileName (LPCWSTR), pvReserved (void* in/out)
r1, _, err := procDeleteLogFile.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszLogFileName))),
	uintptr(pvReserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DeleteLogFile(
  pszLogFileName: PWideChar;   // LPCWSTR
  pvReserved: Pointer   // void* in/out
): BOOL; stdcall;
  external 'clfsw32.dll' name 'DeleteLogFile';

result := DllCall("clfsw32\DeleteLogFile"
    , "WStr", pszLogFileName   ; LPCWSTR
    , "Ptr", pvReserved   ; void* in/out
    , "Int")   ; return: BOOL

●DeleteLogFile(pszLogFileName, pvReserved) = DLL("clfsw32.dll", "bool DeleteLogFile(char*, void*)")
# 呼び出し: DeleteLogFile(pszLogFileName, pvReserved)
# pszLogFileName : LPCWSTR -> "char*"
# pvReserved : void* 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)。