SHQueryRecycleBinA

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

HRESULT SHQueryRecycleBinA(
    LPCSTR pszRootPath,   // optional
    SHQUERYRBINFO* pSHQueryRBInfo
);

<DllImport("SHELL32.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function SHQueryRecycleBinA(
    <MarshalAs(UnmanagedType.LPStr)> pszRootPath As String,   ' LPCSTR optional
    pSHQueryRBInfo As IntPtr   ' SHQUERYRBINFO* in/out
) As Integer
End Function

' pszRootPath : LPCSTR optional
' pSHQueryRBInfo : SHQUERYRBINFO* in/out
Declare PtrSafe Function SHQueryRecycleBinA Lib "shell32" ( _
    ByVal pszRootPath As String, _
    ByVal pSHQueryRBInfo 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

SHQueryRecycleBinA = ctypes.windll.shell32.SHQueryRecycleBinA
SHQueryRecycleBinA.restype = ctypes.c_int
SHQueryRecycleBinA.argtypes = [
    wintypes.LPCSTR,  # pszRootPath : LPCSTR optional
    ctypes.c_void_p,  # pSHQueryRBInfo : SHQUERYRBINFO* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHELL32.dll')
SHQueryRecycleBinA = Fiddle::Function.new(
  lib['SHQueryRecycleBinA'],
  [
    Fiddle::TYPE_VOIDP,  # pszRootPath : LPCSTR optional
    Fiddle::TYPE_VOIDP,  # pSHQueryRBInfo : SHQUERYRBINFO* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "shell32")]
extern "system" {
    fn SHQueryRecycleBinA(
        pszRootPath: *const u8,  // LPCSTR optional
        pSHQueryRBInfo: *mut SHQUERYRBINFO  // SHQUERYRBINFO* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHELL32.dll", CharSet = CharSet.Ansi)]
public static extern int SHQueryRecycleBinA([MarshalAs(UnmanagedType.LPStr)] string pszRootPath, IntPtr pSHQueryRBInfo);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHELL32_SHQueryRecycleBinA' -Namespace Win32 -PassThru
# $api::SHQueryRecycleBinA(pszRootPath, pSHQueryRBInfo)

#uselib "SHELL32.dll"
#func global SHQueryRecycleBinA "SHQueryRecycleBinA" sptr, sptr
; SHQueryRecycleBinA pszRootPath, varptr(pSHQueryRBInfo)   ; 戻り値は stat
; pszRootPath : LPCSTR optional -> "sptr"
; pSHQueryRBInfo : SHQUERYRBINFO* 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 "SHELL32.dll"
#cfunc global SHQueryRecycleBinA "SHQueryRecycleBinA" str, var
; res = SHQueryRecycleBinA(pszRootPath, pSHQueryRBInfo)
; pszRootPath : LPCSTR optional -> "str"
; pSHQueryRBInfo : SHQUERYRBINFO* in/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。

; HRESULT SHQueryRecycleBinA(LPCSTR pszRootPath, SHQUERYRBINFO* pSHQueryRBInfo)
#uselib "SHELL32.dll"
#cfunc global SHQueryRecycleBinA "SHQueryRecycleBinA" str, var
; res = SHQueryRecycleBinA(pszRootPath, pSHQueryRBInfo)
; pszRootPath : LPCSTR optional -> "str"
; pSHQueryRBInfo : SHQUERYRBINFO* in/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 (
	shell32 = windows.NewLazySystemDLL("SHELL32.dll")
	procSHQueryRecycleBinA = shell32.NewProc("SHQueryRecycleBinA")
)

// pszRootPath (LPCSTR optional), pSHQueryRBInfo (SHQUERYRBINFO* in/out)
r1, _, err := procSHQueryRecycleBinA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszRootPath))),
	uintptr(pSHQueryRBInfo),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SHQueryRecycleBinA(
  pszRootPath: PAnsiChar;   // LPCSTR optional
  pSHQueryRBInfo: Pointer   // SHQUERYRBINFO* in/out
): Integer; stdcall;
  external 'SHELL32.dll' name 'SHQueryRecycleBinA';

result := DllCall("SHELL32\SHQueryRecycleBinA"
    , "AStr", pszRootPath   ; LPCSTR optional
    , "Ptr", pSHQueryRBInfo   ; SHQUERYRBINFO* in/out
    , "Int")   ; return: HRESULT

●SHQueryRecycleBinA(pszRootPath, pSHQueryRBInfo) = DLL("SHELL32.dll", "int SHQueryRecycleBinA(char*, void*)")
# 呼び出し: SHQueryRecycleBinA(pszRootPath, pSHQueryRBInfo)
# pszRootPath : LPCSTR optional -> "char*"
# pSHQueryRBInfo : SHQUERYRBINFO* 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)。