IUnknown_AtomicRelease

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

void IUnknown_AtomicRelease(
    void** ppunk   // optional
);

<DllImport("SHLWAPI.dll", ExactSpelling:=True)>
Public Shared Sub IUnknown_AtomicRelease(
    ppunk As IntPtr   ' void** optional, in/out
)
End Sub

' ppunk : void** optional, in/out
Declare PtrSafe Sub IUnknown_AtomicRelease Lib "shlwapi" ( _
    ByVal ppunk As LongPtr)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

IUnknown_AtomicRelease = ctypes.windll.shlwapi.IUnknown_AtomicRelease
IUnknown_AtomicRelease.restype = None
IUnknown_AtomicRelease.argtypes = [
    ctypes.c_void_p,  # ppunk : void** optional, in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHLWAPI.dll')
IUnknown_AtomicRelease = Fiddle::Function.new(
  lib['IUnknown_AtomicRelease'],
  [
    Fiddle::TYPE_VOIDP,  # ppunk : void** optional, in/out
  ],
  Fiddle::TYPE_VOID)

#[link(name = "shlwapi")]
extern "system" {
    fn IUnknown_AtomicRelease(
        ppunk: *mut *mut ()  // void** optional, in/out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHLWAPI.dll")]
public static extern void IUnknown_AtomicRelease(IntPtr ppunk);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHLWAPI_IUnknown_AtomicRelease' -Namespace Win32 -PassThru
# $api::IUnknown_AtomicRelease(ppunk)

#uselib "SHLWAPI.dll"
#func global IUnknown_AtomicRelease "IUnknown_AtomicRelease" sptr
; IUnknown_AtomicRelease ppunk
; ppunk : void** optional, in/out -> "sptr"

#uselib "SHLWAPI.dll"
#func global IUnknown_AtomicRelease "IUnknown_AtomicRelease" sptr
; IUnknown_AtomicRelease ppunk
; ppunk : void** optional, in/out -> "sptr"

; void IUnknown_AtomicRelease(void** ppunk)
#uselib "SHLWAPI.dll"
#func global IUnknown_AtomicRelease "IUnknown_AtomicRelease" intptr
; IUnknown_AtomicRelease ppunk
; ppunk : void** optional, in/out -> "intptr"

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

var (
	shlwapi = windows.NewLazySystemDLL("SHLWAPI.dll")
	procIUnknown_AtomicRelease = shlwapi.NewProc("IUnknown_AtomicRelease")
)

// ppunk (void** optional, in/out)
r1, _, err := procIUnknown_AtomicRelease.Call(
	uintptr(ppunk),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure IUnknown_AtomicRelease(
  ppunk: Pointer   // void** optional, in/out
); stdcall;
  external 'SHLWAPI.dll' name 'IUnknown_AtomicRelease';

result := DllCall("SHLWAPI\IUnknown_AtomicRelease"
    , "Ptr", ppunk   ; void** optional, in/out
    , "Int")   ; return: void

●IUnknown_AtomicRelease(ppunk) = DLL("SHLWAPI.dll", "int IUnknown_AtomicRelease(void*)")
# 呼び出し: IUnknown_AtomicRelease(ppunk)
# ppunk : void** optional, 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)。