CreateDecompressor

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

BOOL CreateDecompressor(
    COMPRESS_ALGORITHM Algorithm,
    COMPRESS_ALLOCATION_ROUTINES* AllocationRoutines,   // optional
    DECOMPRESSOR_HANDLE* DecompressorHandle
);

<DllImport("Cabinet.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function CreateDecompressor(
    Algorithm As UInteger,   ' COMPRESS_ALGORITHM
    AllocationRoutines As IntPtr,   ' COMPRESS_ALLOCATION_ROUTINES* optional
    DecompressorHandle As IntPtr   ' DECOMPRESSOR_HANDLE* out
) As Boolean
End Function

' Algorithm : COMPRESS_ALGORITHM
' AllocationRoutines : COMPRESS_ALLOCATION_ROUTINES* optional
' DecompressorHandle : DECOMPRESSOR_HANDLE* out
Declare PtrSafe Function CreateDecompressor Lib "cabinet" ( _
    ByVal Algorithm As Long, _
    ByVal AllocationRoutines As LongPtr, _
    ByVal DecompressorHandle 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

CreateDecompressor = ctypes.windll.cabinet.CreateDecompressor
CreateDecompressor.restype = wintypes.BOOL
CreateDecompressor.argtypes = [
    wintypes.DWORD,  # Algorithm : COMPRESS_ALGORITHM
    ctypes.c_void_p,  # AllocationRoutines : COMPRESS_ALLOCATION_ROUTINES* optional
    ctypes.c_void_p,  # DecompressorHandle : DECOMPRESSOR_HANDLE* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('Cabinet.dll')
CreateDecompressor = Fiddle::Function.new(
  lib['CreateDecompressor'],
  [
    -Fiddle::TYPE_INT,  # Algorithm : COMPRESS_ALGORITHM
    Fiddle::TYPE_VOIDP,  # AllocationRoutines : COMPRESS_ALLOCATION_ROUTINES* optional
    Fiddle::TYPE_VOIDP,  # DecompressorHandle : DECOMPRESSOR_HANDLE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "cabinet")]
extern "system" {
    fn CreateDecompressor(
        Algorithm: u32,  // COMPRESS_ALGORITHM
        AllocationRoutines: *mut COMPRESS_ALLOCATION_ROUTINES,  // COMPRESS_ALLOCATION_ROUTINES* optional
        DecompressorHandle: *mut *mut core::ffi::c_void  // DECOMPRESSOR_HANDLE* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("Cabinet.dll", SetLastError = true)]
public static extern bool CreateDecompressor(uint Algorithm, IntPtr AllocationRoutines, IntPtr DecompressorHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'Cabinet_CreateDecompressor' -Namespace Win32 -PassThru
# $api::CreateDecompressor(Algorithm, AllocationRoutines, DecompressorHandle)

#uselib "Cabinet.dll"
#func global CreateDecompressor "CreateDecompressor" sptr, sptr, sptr
; CreateDecompressor Algorithm, varptr(AllocationRoutines), DecompressorHandle   ; 戻り値は stat
; Algorithm : COMPRESS_ALGORITHM -> "sptr"
; AllocationRoutines : COMPRESS_ALLOCATION_ROUTINES* optional -> "sptr"
; DecompressorHandle : DECOMPRESSOR_HANDLE* 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 "Cabinet.dll"
#cfunc global CreateDecompressor "CreateDecompressor" int, var, sptr
; res = CreateDecompressor(Algorithm, AllocationRoutines, DecompressorHandle)
; Algorithm : COMPRESS_ALGORITHM -> "int"
; AllocationRoutines : COMPRESS_ALLOCATION_ROUTINES* optional -> "var"
; DecompressorHandle : DECOMPRESSOR_HANDLE* 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。

; BOOL CreateDecompressor(COMPRESS_ALGORITHM Algorithm, COMPRESS_ALLOCATION_ROUTINES* AllocationRoutines, DECOMPRESSOR_HANDLE* DecompressorHandle)
#uselib "Cabinet.dll"
#cfunc global CreateDecompressor "CreateDecompressor" int, var, intptr
; res = CreateDecompressor(Algorithm, AllocationRoutines, DecompressorHandle)
; Algorithm : COMPRESS_ALGORITHM -> "int"
; AllocationRoutines : COMPRESS_ALLOCATION_ROUTINES* optional -> "var"
; DecompressorHandle : DECOMPRESSOR_HANDLE* 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 (
	cabinet = windows.NewLazySystemDLL("Cabinet.dll")
	procCreateDecompressor = cabinet.NewProc("CreateDecompressor")
)

// Algorithm (COMPRESS_ALGORITHM), AllocationRoutines (COMPRESS_ALLOCATION_ROUTINES* optional), DecompressorHandle (DECOMPRESSOR_HANDLE* out)
r1, _, err := procCreateDecompressor.Call(
	uintptr(Algorithm),
	uintptr(AllocationRoutines),
	uintptr(DecompressorHandle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function CreateDecompressor(
  Algorithm: DWORD;   // COMPRESS_ALGORITHM
  AllocationRoutines: Pointer;   // COMPRESS_ALLOCATION_ROUTINES* optional
  DecompressorHandle: Pointer   // DECOMPRESSOR_HANDLE* out
): BOOL; stdcall;
  external 'Cabinet.dll' name 'CreateDecompressor';

result := DllCall("Cabinet\CreateDecompressor"
    , "UInt", Algorithm   ; COMPRESS_ALGORITHM
    , "Ptr", AllocationRoutines   ; COMPRESS_ALLOCATION_ROUTINES* optional
    , "Ptr", DecompressorHandle   ; DECOMPRESSOR_HANDLE* out
    , "Int")   ; return: BOOL

●CreateDecompressor(Algorithm, AllocationRoutines, DecompressorHandle) = DLL("Cabinet.dll", "bool CreateDecompressor(dword, void*, void*)")
# 呼び出し: CreateDecompressor(Algorithm, AllocationRoutines, DecompressorHandle)
# Algorithm : COMPRESS_ALGORITHM -> "dword"
# AllocationRoutines : COMPRESS_ALLOCATION_ROUTINES* optional -> "void*"
# DecompressorHandle : DECOMPRESSOR_HANDLE* 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)。