IUnknown_GetWindow

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

HRESULT IUnknown_GetWindow(
    IUnknown* punk,
    HWND* phwnd
);

<DllImport("SHLWAPI.dll", ExactSpelling:=True)>
Public Shared Function IUnknown_GetWindow(
    punk As IntPtr,   ' IUnknown*
    phwnd As IntPtr   ' HWND* out
) As Integer
End Function

' punk : IUnknown*
' phwnd : HWND* out
Declare PtrSafe Function IUnknown_GetWindow Lib "shlwapi" ( _
    ByVal punk As LongPtr, _
    ByVal phwnd 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

IUnknown_GetWindow = ctypes.windll.shlwapi.IUnknown_GetWindow
IUnknown_GetWindow.restype = ctypes.c_int
IUnknown_GetWindow.argtypes = [
    ctypes.c_void_p,  # punk : IUnknown*
    ctypes.c_void_p,  # phwnd : HWND* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHLWAPI.dll')
IUnknown_GetWindow = Fiddle::Function.new(
  lib['IUnknown_GetWindow'],
  [
    Fiddle::TYPE_VOIDP,  # punk : IUnknown*
    Fiddle::TYPE_VOIDP,  # phwnd : HWND* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "shlwapi")]
extern "system" {
    fn IUnknown_GetWindow(
        punk: *mut core::ffi::c_void,  // IUnknown*
        phwnd: *mut *mut core::ffi::c_void  // HWND* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHLWAPI.dll")]
public static extern int IUnknown_GetWindow(IntPtr punk, IntPtr phwnd);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHLWAPI_IUnknown_GetWindow' -Namespace Win32 -PassThru
# $api::IUnknown_GetWindow(punk, phwnd)

#uselib "SHLWAPI.dll"
#func global IUnknown_GetWindow "IUnknown_GetWindow" sptr, sptr
; IUnknown_GetWindow punk, phwnd   ; 戻り値は stat
; punk : IUnknown* -> "sptr"
; phwnd : HWND* 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 "SHLWAPI.dll"
#cfunc global IUnknown_GetWindow "IUnknown_GetWindow" sptr, sptr
; res = IUnknown_GetWindow(punk, phwnd)
; punk : IUnknown* -> "sptr"
; phwnd : HWND* out -> "sptr"

; HRESULT IUnknown_GetWindow(IUnknown* punk, HWND* phwnd)
#uselib "SHLWAPI.dll"
#cfunc global IUnknown_GetWindow "IUnknown_GetWindow" intptr, intptr
; res = IUnknown_GetWindow(punk, phwnd)
; punk : IUnknown* -> "intptr"
; phwnd : HWND* out -> "intptr"

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

var (
	shlwapi = windows.NewLazySystemDLL("SHLWAPI.dll")
	procIUnknown_GetWindow = shlwapi.NewProc("IUnknown_GetWindow")
)

// punk (IUnknown*), phwnd (HWND* out)
r1, _, err := procIUnknown_GetWindow.Call(
	uintptr(punk),
	uintptr(phwnd),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function IUnknown_GetWindow(
  punk: Pointer;   // IUnknown*
  phwnd: Pointer   // HWND* out
): Integer; stdcall;
  external 'SHLWAPI.dll' name 'IUnknown_GetWindow';

result := DllCall("SHLWAPI\IUnknown_GetWindow"
    , "Ptr", punk   ; IUnknown*
    , "Ptr", phwnd   ; HWND* out
    , "Int")   ; return: HRESULT

●IUnknown_GetWindow(punk, phwnd) = DLL("SHLWAPI.dll", "int IUnknown_GetWindow(void*, void*)")
# 呼び出し: IUnknown_GetWindow(punk, phwnd)
# punk : IUnknown* -> "void*"
# phwnd : HWND* 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)。