RemoveDirectory2W

// KERNEL32.dll  (Unicode / -W)
#include <windows.h>

BOOL RemoveDirectory2W(
    LPCWSTR lpPathName,
    DIRECTORY_FLAGS DirectoryFlags
);

<DllImport("KERNEL32.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function RemoveDirectory2W(
    <MarshalAs(UnmanagedType.LPWStr)> lpPathName As String,   ' LPCWSTR
    DirectoryFlags As Integer   ' DIRECTORY_FLAGS
) As Boolean
End Function

' lpPathName : LPCWSTR
' DirectoryFlags : DIRECTORY_FLAGS
Declare PtrSafe Function RemoveDirectory2W Lib "kernel32" ( _
    ByVal lpPathName As LongPtr, _
    ByVal DirectoryFlags As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

RemoveDirectory2W = ctypes.windll.kernel32.RemoveDirectory2W
RemoveDirectory2W.restype = wintypes.BOOL
RemoveDirectory2W.argtypes = [
    wintypes.LPCWSTR,  # lpPathName : LPCWSTR
    ctypes.c_int,  # DirectoryFlags : DIRECTORY_FLAGS
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('KERNEL32.dll')
RemoveDirectory2W = Fiddle::Function.new(
  lib['RemoveDirectory2W'],
  [
    Fiddle::TYPE_VOIDP,  # lpPathName : LPCWSTR
    Fiddle::TYPE_INT,  # DirectoryFlags : DIRECTORY_FLAGS
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "kernel32")]
extern "system" {
    fn RemoveDirectory2W(
        lpPathName: *const u16,  // LPCWSTR
        DirectoryFlags: i32  // DIRECTORY_FLAGS
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("KERNEL32.dll", CharSet = CharSet.Unicode)]
public static extern bool RemoveDirectory2W([MarshalAs(UnmanagedType.LPWStr)] string lpPathName, int DirectoryFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'KERNEL32_RemoveDirectory2W' -Namespace Win32 -PassThru
# $api::RemoveDirectory2W(lpPathName, DirectoryFlags)

#uselib "KERNEL32.dll"
#func global RemoveDirectory2W "RemoveDirectory2W" wptr, wptr
; RemoveDirectory2W lpPathName, DirectoryFlags   ; 戻り値は stat
; lpPathName : LPCWSTR -> "wptr"
; DirectoryFlags : DIRECTORY_FLAGS -> "wptr"
; ※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 "KERNEL32.dll"
#cfunc global RemoveDirectory2W "RemoveDirectory2W" wstr, int
; res = RemoveDirectory2W(lpPathName, DirectoryFlags)
; lpPathName : LPCWSTR -> "wstr"
; DirectoryFlags : DIRECTORY_FLAGS -> "int"

; BOOL RemoveDirectory2W(LPCWSTR lpPathName, DIRECTORY_FLAGS DirectoryFlags)
#uselib "KERNEL32.dll"
#cfunc global RemoveDirectory2W "RemoveDirectory2W" wstr, int
; res = RemoveDirectory2W(lpPathName, DirectoryFlags)
; lpPathName : LPCWSTR -> "wstr"
; DirectoryFlags : DIRECTORY_FLAGS -> "int"

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

var (
	kernel32 = windows.NewLazySystemDLL("KERNEL32.dll")
	procRemoveDirectory2W = kernel32.NewProc("RemoveDirectory2W")
)

// lpPathName (LPCWSTR), DirectoryFlags (DIRECTORY_FLAGS)
r1, _, err := procRemoveDirectory2W.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpPathName))),
	uintptr(DirectoryFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function RemoveDirectory2W(
  lpPathName: PWideChar;   // LPCWSTR
  DirectoryFlags: Integer   // DIRECTORY_FLAGS
): BOOL; stdcall;
  external 'KERNEL32.dll' name 'RemoveDirectory2W';

result := DllCall("KERNEL32\RemoveDirectory2W"
    , "WStr", lpPathName   ; LPCWSTR
    , "Int", DirectoryFlags   ; DIRECTORY_FLAGS
    , "Int")   ; return: BOOL

●RemoveDirectory2W(lpPathName, DirectoryFlags) = DLL("KERNEL32.dll", "bool RemoveDirectory2W(char*, int)")
# 呼び出し: RemoveDirectory2W(lpPathName, DirectoryFlags)
# lpPathName : LPCWSTR -> "char*"
# DirectoryFlags : DIRECTORY_FLAGS -> "int"
# 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。