SHEmptyRecycleBinA

// SHELL32.dll  (ANSI / -A)
#include <windows.h>

HRESULT SHEmptyRecycleBinA(
    HWND hwnd,   // optional
    LPCSTR pszRootPath,   // optional
    DWORD dwFlags
);

<DllImport("SHELL32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function SHEmptyRecycleBinA(
    hwnd As IntPtr,   ' HWND optional
    <MarshalAs(UnmanagedType.LPStr)> pszRootPath As String,   ' LPCSTR optional
    dwFlags As UInteger   ' DWORD
) As Integer
End Function

' hwnd : HWND optional
' pszRootPath : LPCSTR optional
' dwFlags : DWORD
Declare PtrSafe Function SHEmptyRecycleBinA Lib "shell32" ( _
    ByVal hwnd As LongPtr, _
    ByVal pszRootPath As String, _
    ByVal dwFlags 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

SHEmptyRecycleBinA = ctypes.windll.shell32.SHEmptyRecycleBinA
SHEmptyRecycleBinA.restype = ctypes.c_int
SHEmptyRecycleBinA.argtypes = [
    wintypes.HANDLE,  # hwnd : HWND optional
    wintypes.LPCSTR,  # pszRootPath : LPCSTR optional
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
SHEmptyRecycleBinA = Fiddle::Function.new(
  lib['SHEmptyRecycleBinA'],
  [
    Fiddle::TYPE_VOIDP,  # hwnd : HWND optional
    Fiddle::TYPE_VOIDP,  # pszRootPath : LPCSTR optional
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "shell32")]
extern "system" {
    fn SHEmptyRecycleBinA(
        hwnd: *mut core::ffi::c_void,  // HWND optional
        pszRootPath: *const u8,  // LPCSTR optional
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHELL32.dll", CharSet = CharSet.Ansi)]
public static extern int SHEmptyRecycleBinA(IntPtr hwnd, [MarshalAs(UnmanagedType.LPStr)] string pszRootPath, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_SHEmptyRecycleBinA' -Namespace Win32 -PassThru
# $api::SHEmptyRecycleBinA(hwnd, pszRootPath, dwFlags)

#uselib "SHELL32.dll"
#func global SHEmptyRecycleBinA "SHEmptyRecycleBinA" sptr, sptr, sptr
; SHEmptyRecycleBinA hwnd, pszRootPath, dwFlags   ; 戻り値は stat
; hwnd : HWND optional -> "sptr"
; pszRootPath : LPCSTR optional -> "sptr"
; dwFlags : DWORD -> "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 "SHELL32.dll"
#cfunc global SHEmptyRecycleBinA "SHEmptyRecycleBinA" sptr, str, int
; res = SHEmptyRecycleBinA(hwnd, pszRootPath, dwFlags)
; hwnd : HWND optional -> "sptr"
; pszRootPath : LPCSTR optional -> "str"
; dwFlags : DWORD -> "int"

; HRESULT SHEmptyRecycleBinA(HWND hwnd, LPCSTR pszRootPath, DWORD dwFlags)
#uselib "SHELL32.dll"
#cfunc global SHEmptyRecycleBinA "SHEmptyRecycleBinA" intptr, str, int
; res = SHEmptyRecycleBinA(hwnd, pszRootPath, dwFlags)
; hwnd : HWND optional -> "intptr"
; pszRootPath : LPCSTR optional -> "str"
; dwFlags : DWORD -> "int"

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

var (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procSHEmptyRecycleBinA = shell32.NewProc("SHEmptyRecycleBinA")
)

// hwnd (HWND optional), pszRootPath (LPCSTR optional), dwFlags (DWORD)
r1, _, err := procSHEmptyRecycleBinA.Call(
	uintptr(hwnd),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszRootPath))),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SHEmptyRecycleBinA(
  hwnd: THandle;   // HWND optional
  pszRootPath: PAnsiChar;   // LPCSTR optional
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'SHELL32.dll' name 'SHEmptyRecycleBinA';

result := DllCall("SHELL32\SHEmptyRecycleBinA"
    , "Ptr", hwnd   ; HWND optional
    , "AStr", pszRootPath   ; LPCSTR optional
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: HRESULT

●SHEmptyRecycleBinA(hwnd, pszRootPath, dwFlags) = DLL("SHELL32.dll", "int SHEmptyRecycleBinA(void*, char*, dword)")
# 呼び出し: SHEmptyRecycleBinA(hwnd, pszRootPath, dwFlags)
# hwnd : HWND optional -> "void*"
# pszRootPath : LPCSTR optional -> "char*"
# dwFlags : DWORD -> "dword"
# 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)。

const std = @import("std");

extern "shell32" fn SHEmptyRecycleBinA(
    hwnd: ?*anyopaque, // HWND optional
    pszRootPath: [*c]const u8, // LPCSTR optional
    dwFlags: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc SHEmptyRecycleBinA(
    hwnd: pointer,  # HWND optional
    pszRootPath: cstring,  # LPCSTR optional
    dwFlags: uint32  # DWORD
): int32 {.importc: "SHEmptyRecycleBinA", stdcall, dynlib: "SHELL32.dll".}

pragma(lib, "shell32");
extern(Windows)
int SHEmptyRecycleBinA(
    void* hwnd,   // HWND optional
    const(char)* pszRootPath,   // LPCSTR optional
    uint dwFlags   // DWORD
);

ccall((:SHEmptyRecycleBinA, "SHELL32.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Cstring, UInt32),
      hwnd, pszRootPath, dwFlags)
# hwnd : HWND optional -> Ptr{Cvoid}
# pszRootPath : LPCSTR optional -> Cstring
# dwFlags : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t SHEmptyRecycleBinA(
    void* hwnd,
    const char* pszRootPath,
    uint32_t dwFlags);
]]
local shell32 = ffi.load("shell32")
-- shell32.SHEmptyRecycleBinA(hwnd, pszRootPath, dwFlags)
-- hwnd : HWND optional
-- pszRootPath : LPCSTR optional
-- dwFlags : DWORD
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('SHELL32.dll');
const SHEmptyRecycleBinA = lib.func('__stdcall', 'SHEmptyRecycleBinA', 'int32_t', ['void *', 'str', 'uint32_t']);
// SHEmptyRecycleBinA(hwnd, pszRootPath, dwFlags)
// hwnd : HWND optional -> 'void *'
// pszRootPath : LPCSTR optional -> 'str'
// dwFlags : DWORD -> 'uint32_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("SHELL32.dll", {
  SHEmptyRecycleBinA: { parameters: ["pointer", "buffer", "u32"], result: "i32" },
});
// lib.symbols.SHEmptyRecycleBinA(hwnd, pszRootPath, dwFlags)
// hwnd : HWND optional -> "pointer"
// pszRootPath : LPCSTR optional -> "buffer"
// dwFlags : DWORD -> "u32"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t SHEmptyRecycleBinA(
    void* hwnd,
    const char* pszRootPath,
    uint32_t dwFlags);
C, "SHELL32.dll");
// $ffi->SHEmptyRecycleBinA(hwnd, pszRootPath, dwFlags);
// hwnd : HWND optional
// pszRootPath : LPCSTR optional
// dwFlags : DWORD
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Shell32 extends StdCallLibrary {
    Shell32 INSTANCE = Native.load("shell32", Shell32.class, W32APIOptions.ASCII_OPTIONS);
    int SHEmptyRecycleBinA(
        Pointer hwnd,   // HWND optional
        String pszRootPath,   // LPCSTR optional
        int dwFlags   // DWORD
    );
}

@[Link("shell32")]
lib LibSHELL32
  fun SHEmptyRecycleBinA = SHEmptyRecycleBinA(
    hwnd : Void*,   # HWND optional
    pszRootPath : UInt8*,   # LPCSTR optional
    dwFlags : UInt32   # DWORD
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef SHEmptyRecycleBinANative = Int32 Function(Pointer<Void>, Pointer<Utf8>, Uint32);
typedef SHEmptyRecycleBinADart = int Function(Pointer<Void>, Pointer<Utf8>, int);
final SHEmptyRecycleBinA = DynamicLibrary.open('SHELL32.dll')
    .lookupFunction<SHEmptyRecycleBinANative, SHEmptyRecycleBinADart>('SHEmptyRecycleBinA');
// hwnd : HWND optional -> Pointer<Void>
// pszRootPath : LPCSTR optional -> Pointer<Utf8>
// dwFlags : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SHEmptyRecycleBinA(
  hwnd: THandle;   // HWND optional
  pszRootPath: PAnsiChar;   // LPCSTR optional
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'SHELL32.dll' name 'SHEmptyRecycleBinA';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "SHEmptyRecycleBinA"
  c_SHEmptyRecycleBinA :: Ptr () -> CString -> Word32 -> IO Int32
-- hwnd : HWND optional -> Ptr ()
-- pszRootPath : LPCSTR optional -> CString
-- dwFlags : DWORD -> Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let shemptyrecyclebina =
  foreign "SHEmptyRecycleBinA"
    ((ptr void) @-> string @-> uint32_t @-> returning int32_t)
(* hwnd : HWND optional -> (ptr void) *)
(* pszRootPath : LPCSTR optional -> string *)
(* dwFlags : DWORD -> uint32_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library shell32 (t "SHELL32.dll"))
(cffi:use-foreign-library shell32)

(cffi:defcfun ("SHEmptyRecycleBinA" shempty-recycle-bin-a :convention :stdcall) :int32
  (hwnd :pointer)   ; HWND optional
  (psz-root-path :string)   ; LPCSTR optional
  (dw-flags :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SHEmptyRecycleBinA = Win32::API::More->new('SHELL32',
    'int SHEmptyRecycleBinA(HANDLE hwnd, LPCSTR pszRootPath, DWORD dwFlags)');
# my $ret = $SHEmptyRecycleBinA->Call($hwnd, $pszRootPath, $dwFlags);
# hwnd : HWND optional -> HANDLE
# pszRootPath : LPCSTR optional -> LPCSTR
# dwFlags : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。