ExecuteCabW

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

HRESULT ExecuteCabW(
    HWND hwnd,
    CABINFOW* pCab,
    void* pReserved
);

<DllImport("ADVPACK.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function ExecuteCabW(
    hwnd As IntPtr,   ' HWND
    pCab As IntPtr,   ' CABINFOW* in/out
    pReserved As IntPtr   ' void* in/out
) As Integer
End Function

' hwnd : HWND
' pCab : CABINFOW* in/out
' pReserved : void* in/out
Declare PtrSafe Function ExecuteCabW Lib "advpack" ( _
    ByVal hwnd As LongPtr, _
    ByVal pCab As LongPtr, _
    ByVal pReserved As LongPtr) 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

ExecuteCabW = ctypes.windll.advpack.ExecuteCabW
ExecuteCabW.restype = ctypes.c_int
ExecuteCabW.argtypes = [
    wintypes.HANDLE,  # hwnd : HWND
    ctypes.c_void_p,  # pCab : CABINFOW* in/out
    ctypes.POINTER(None),  # pReserved : void* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('ADVPACK.dll')
ExecuteCabW = Fiddle::Function.new(
  lib['ExecuteCabW'],
  [
    Fiddle::TYPE_VOIDP,  # hwnd : HWND
    Fiddle::TYPE_VOIDP,  # pCab : CABINFOW* in/out
    Fiddle::TYPE_VOIDP,  # pReserved : void* in/out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "advpack")]
extern "system" {
    fn ExecuteCabW(
        hwnd: *mut core::ffi::c_void,  // HWND
        pCab: *mut CABINFOW,  // CABINFOW* in/out
        pReserved: *mut ()  // void* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("ADVPACK.dll", CharSet = CharSet.Unicode)]
public static extern int ExecuteCabW(IntPtr hwnd, IntPtr pCab, IntPtr pReserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'ADVPACK_ExecuteCabW' -Namespace Win32 -PassThru
# $api::ExecuteCabW(hwnd, pCab, pReserved)

#uselib "ADVPACK.dll"
#func global ExecuteCabW "ExecuteCabW" wptr, wptr, wptr
; ExecuteCabW hwnd, varptr(pCab), pReserved   ; 戻り値は stat
; hwnd : HWND -> "wptr"
; pCab : CABINFOW* in/out -> "wptr"
; pReserved : void* in/out -> "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 "ADVPACK.dll"
#cfunc global ExecuteCabW "ExecuteCabW" sptr, var, sptr
; res = ExecuteCabW(hwnd, pCab, pReserved)
; hwnd : HWND -> "sptr"
; pCab : CABINFOW* in/out -> "var"
; pReserved : void* in/out -> "sptr"
; ※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 ExecuteCabW(HWND hwnd, CABINFOW* pCab, void* pReserved)
#uselib "ADVPACK.dll"
#cfunc global ExecuteCabW "ExecuteCabW" intptr, var, intptr
; res = ExecuteCabW(hwnd, pCab, pReserved)
; hwnd : HWND -> "intptr"
; pCab : CABINFOW* in/out -> "var"
; pReserved : void* in/out -> "intptr"
; ※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 (
	advpack = windows.NewLazySystemDLL("ADVPACK.dll")
	procExecuteCabW = advpack.NewProc("ExecuteCabW")
)

// hwnd (HWND), pCab (CABINFOW* in/out), pReserved (void* in/out)
r1, _, err := procExecuteCabW.Call(
	uintptr(hwnd),
	uintptr(pCab),
	uintptr(pReserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function ExecuteCabW(
  hwnd: THandle;   // HWND
  pCab: Pointer;   // CABINFOW* in/out
  pReserved: Pointer   // void* in/out
): Integer; stdcall;
  external 'ADVPACK.dll' name 'ExecuteCabW';

result := DllCall("ADVPACK\ExecuteCabW"
    , "Ptr", hwnd   ; HWND
    , "Ptr", pCab   ; CABINFOW* in/out
    , "Ptr", pReserved   ; void* in/out
    , "Int")   ; return: HRESULT

●ExecuteCabW(hwnd, pCab, pReserved) = DLL("ADVPACK.dll", "int ExecuteCabW(void*, void*, void*)")
# 呼び出し: ExecuteCabW(hwnd, pCab, pReserved)
# hwnd : HWND -> "void*"
# pCab : CABINFOW* in/out -> "void*"
# pReserved : void* 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。