VARIANT_UserUnmarshal

// OLEAUT32.dll
#include <windows.h>

BYTE* VARIANT_UserUnmarshal(
    DWORD* param0,
    BYTE* param1,
    VARIANT* param2
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function VARIANT_UserUnmarshal(
    ByRef param0 As UInteger,   ' DWORD*
    param1 As IntPtr,   ' BYTE*
    param2 As IntPtr   ' VARIANT* out
) As IntPtr
End Function

' param0 : DWORD*
' param1 : BYTE*
' param2 : VARIANT* out
Declare PtrSafe Function VARIANT_UserUnmarshal Lib "oleaut32" ( _
    ByRef param0 As Long, _
    ByVal param1 As LongPtr, _
    ByVal param2 As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

VARIANT_UserUnmarshal = ctypes.windll.oleaut32.VARIANT_UserUnmarshal
VARIANT_UserUnmarshal.restype = ctypes.c_void_p
VARIANT_UserUnmarshal.argtypes = [
    ctypes.POINTER(wintypes.DWORD),  # param0 : DWORD*
    ctypes.POINTER(ctypes.c_ubyte),  # param1 : BYTE*
    ctypes.c_void_p,  # param2 : VARIANT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
VARIANT_UserUnmarshal = Fiddle::Function.new(
  lib['VARIANT_UserUnmarshal'],
  [
    Fiddle::TYPE_VOIDP,  # param0 : DWORD*
    Fiddle::TYPE_VOIDP,  # param1 : BYTE*
    Fiddle::TYPE_VOIDP,  # param2 : VARIANT* out
  ],
  Fiddle::TYPE_VOIDP)

#[link(name = "oleaut32")]
extern "system" {
    fn VARIANT_UserUnmarshal(
        param0: *mut u32,  // DWORD*
        param1: *mut u8,  // BYTE*
        param2: *mut VARIANT  // VARIANT* out
    ) -> *mut u8;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern IntPtr VARIANT_UserUnmarshal(ref uint param0, IntPtr param1, IntPtr param2);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_VARIANT_UserUnmarshal' -Namespace Win32 -PassThru
# $api::VARIANT_UserUnmarshal(param0, param1, param2)

#uselib "OLEAUT32.dll"
#func global VARIANT_UserUnmarshal "VARIANT_UserUnmarshal" sptr, sptr, sptr
; VARIANT_UserUnmarshal varptr(param0), varptr(param1), varptr(param2)   ; 戻り値は stat
; param0 : DWORD* -> "sptr"
; param1 : BYTE* -> "sptr"
; param2 : VARIANT* 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 "OLEAUT32.dll"
#cfunc global VARIANT_UserUnmarshal "VARIANT_UserUnmarshal" var, var, var
; res = VARIANT_UserUnmarshal(param0, param1, param2)
; param0 : DWORD* -> "var"
; param1 : BYTE* -> "var"
; param2 : VARIANT* out -> "var"
; ※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。

; BYTE* VARIANT_UserUnmarshal(DWORD* param0, BYTE* param1, VARIANT* param2)
#uselib "OLEAUT32.dll"
#cfunc global VARIANT_UserUnmarshal "VARIANT_UserUnmarshal" var, var, var
; res = VARIANT_UserUnmarshal(param0, param1, param2)
; param0 : DWORD* -> "var"
; param1 : BYTE* -> "var"
; param2 : VARIANT* out -> "var"
; ※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 (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procVARIANT_UserUnmarshal = oleaut32.NewProc("VARIANT_UserUnmarshal")
)

// param0 (DWORD*), param1 (BYTE*), param2 (VARIANT* out)
r1, _, err := procVARIANT_UserUnmarshal.Call(
	uintptr(param0),
	uintptr(param1),
	uintptr(param2),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BYTE*

function VARIANT_UserUnmarshal(
  param0: Pointer;   // DWORD*
  param1: Pointer;   // BYTE*
  param2: Pointer   // VARIANT* out
): Pointer; stdcall;
  external 'OLEAUT32.dll' name 'VARIANT_UserUnmarshal';

result := DllCall("OLEAUT32\VARIANT_UserUnmarshal"
    , "Ptr", param0   ; DWORD*
    , "Ptr", param1   ; BYTE*
    , "Ptr", param2   ; VARIANT* out
    , "Ptr")   ; return: BYTE*

●VARIANT_UserUnmarshal(param0, param1, param2) = DLL("OLEAUT32.dll", "void* VARIANT_UserUnmarshal(void*, void*, void*)")
# 呼び出し: VARIANT_UserUnmarshal(param0, param1, param2)
# param0 : DWORD* -> "void*"
# param1 : BYTE* -> "void*"
# param2 : VARIANT* 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)。