DestroyEnvironmentBlock

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

BOOL DestroyEnvironmentBlock(
    void* lpEnvironment
);

<DllImport("USERENV.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function DestroyEnvironmentBlock(
    lpEnvironment As IntPtr   ' void*
) As Boolean
End Function

' lpEnvironment : void*
Declare PtrSafe Function DestroyEnvironmentBlock Lib "userenv" ( _
    ByVal lpEnvironment 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

DestroyEnvironmentBlock = ctypes.windll.userenv.DestroyEnvironmentBlock
DestroyEnvironmentBlock.restype = wintypes.BOOL
DestroyEnvironmentBlock.argtypes = [
    ctypes.POINTER(None),  # lpEnvironment : void*
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('USERENV.dll')
DestroyEnvironmentBlock = Fiddle::Function.new(
  lib['DestroyEnvironmentBlock'],
  [
    Fiddle::TYPE_VOIDP,  # lpEnvironment : void*
  ],
  Fiddle::TYPE_INT)

#[link(name = "userenv")]
extern "system" {
    fn DestroyEnvironmentBlock(
        lpEnvironment: *mut ()  // void*
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("USERENV.dll", SetLastError = true)]
public static extern bool DestroyEnvironmentBlock(IntPtr lpEnvironment);
"@
$api = Add-Type -MemberDefinition $sig -Name 'USERENV_DestroyEnvironmentBlock' -Namespace Win32 -PassThru
# $api::DestroyEnvironmentBlock(lpEnvironment)

#uselib "USERENV.dll"
#func global DestroyEnvironmentBlock "DestroyEnvironmentBlock" sptr
; DestroyEnvironmentBlock lpEnvironment   ; 戻り値は stat
; lpEnvironment : void* -> "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 "USERENV.dll"
#cfunc global DestroyEnvironmentBlock "DestroyEnvironmentBlock" sptr
; res = DestroyEnvironmentBlock(lpEnvironment)
; lpEnvironment : void* -> "sptr"

; BOOL DestroyEnvironmentBlock(void* lpEnvironment)
#uselib "USERENV.dll"
#cfunc global DestroyEnvironmentBlock "DestroyEnvironmentBlock" intptr
; res = DestroyEnvironmentBlock(lpEnvironment)
; lpEnvironment : void* -> "intptr"

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

var (
	userenv = windows.NewLazySystemDLL("USERENV.dll")
	procDestroyEnvironmentBlock = userenv.NewProc("DestroyEnvironmentBlock")
)

// lpEnvironment (void*)
r1, _, err := procDestroyEnvironmentBlock.Call(
	uintptr(lpEnvironment),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function DestroyEnvironmentBlock(
  lpEnvironment: Pointer   // void*
): BOOL; stdcall;
  external 'USERENV.dll' name 'DestroyEnvironmentBlock';

result := DllCall("USERENV\DestroyEnvironmentBlock"
    , "Ptr", lpEnvironment   ; void*
    , "Int")   ; return: BOOL

●DestroyEnvironmentBlock(lpEnvironment) = DLL("USERENV.dll", "bool DestroyEnvironmentBlock(void*)")
# 呼び出し: DestroyEnvironmentBlock(lpEnvironment)
# lpEnvironment : void* -> "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)。