ScCopyProps

// MAPI32.dll
#include <windows.h>

INT ScCopyProps(
    INT cValues,
    SPropValue* lpPropArray,
    void* lpvDst,
    DWORD* lpcb
);

<DllImport("MAPI32.dll", ExactSpelling:=True)>
Public Shared Function ScCopyProps(
    cValues As Integer,   ' INT
    lpPropArray As IntPtr,   ' SPropValue* in/out
    lpvDst As IntPtr,   ' void* in/out
    ByRef lpcb As UInteger   ' DWORD* in/out
) As Integer
End Function

' cValues : INT
' lpPropArray : SPropValue* in/out
' lpvDst : void* in/out
' lpcb : DWORD* in/out
Declare PtrSafe Function ScCopyProps Lib "mapi32" ( _
    ByVal cValues As Long, _
    ByVal lpPropArray As LongPtr, _
    ByVal lpvDst As LongPtr, _
    ByRef lpcb As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

ScCopyProps = ctypes.windll.mapi32.ScCopyProps
ScCopyProps.restype = ctypes.c_int
ScCopyProps.argtypes = [
    ctypes.c_int,  # cValues : INT
    ctypes.c_void_p,  # lpPropArray : SPropValue* in/out
    ctypes.POINTER(None),  # lpvDst : void* in/out
    ctypes.POINTER(wintypes.DWORD),  # lpcb : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MAPI32.dll')
ScCopyProps = Fiddle::Function.new(
  lib['ScCopyProps'],
  [
    Fiddle::TYPE_INT,  # cValues : INT
    Fiddle::TYPE_VOIDP,  # lpPropArray : SPropValue* in/out
    Fiddle::TYPE_VOIDP,  # lpvDst : void* in/out
    Fiddle::TYPE_VOIDP,  # lpcb : DWORD* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mapi32")]
extern "system" {
    fn ScCopyProps(
        cValues: i32,  // INT
        lpPropArray: *mut SPropValue,  // SPropValue* in/out
        lpvDst: *mut (),  // void* in/out
        lpcb: *mut u32  // DWORD* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MAPI32.dll")]
public static extern int ScCopyProps(int cValues, IntPtr lpPropArray, IntPtr lpvDst, ref uint lpcb);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MAPI32_ScCopyProps' -Namespace Win32 -PassThru
# $api::ScCopyProps(cValues, lpPropArray, lpvDst, lpcb)

#uselib "MAPI32.dll"
#func global ScCopyProps "ScCopyProps" sptr, sptr, sptr, sptr
; ScCopyProps cValues, varptr(lpPropArray), lpvDst, varptr(lpcb)   ; 戻り値は stat
; cValues : INT -> "sptr"
; lpPropArray : SPropValue* in/out -> "sptr"
; lpvDst : void* in/out -> "sptr"
; lpcb : DWORD* in/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 "MAPI32.dll"
#cfunc global ScCopyProps "ScCopyProps" int, var, sptr, var
; res = ScCopyProps(cValues, lpPropArray, lpvDst, lpcb)
; cValues : INT -> "int"
; lpPropArray : SPropValue* in/out -> "var"
; lpvDst : void* in/out -> "sptr"
; lpcb : DWORD* in/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。

; INT ScCopyProps(INT cValues, SPropValue* lpPropArray, void* lpvDst, DWORD* lpcb)
#uselib "MAPI32.dll"
#cfunc global ScCopyProps "ScCopyProps" int, var, intptr, var
; res = ScCopyProps(cValues, lpPropArray, lpvDst, lpcb)
; cValues : INT -> "int"
; lpPropArray : SPropValue* in/out -> "var"
; lpvDst : void* in/out -> "intptr"
; lpcb : DWORD* in/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 (
	mapi32 = windows.NewLazySystemDLL("MAPI32.dll")
	procScCopyProps = mapi32.NewProc("ScCopyProps")
)

// cValues (INT), lpPropArray (SPropValue* in/out), lpvDst (void* in/out), lpcb (DWORD* in/out)
r1, _, err := procScCopyProps.Call(
	uintptr(cValues),
	uintptr(lpPropArray),
	uintptr(lpvDst),
	uintptr(lpcb),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function ScCopyProps(
  cValues: Integer;   // INT
  lpPropArray: Pointer;   // SPropValue* in/out
  lpvDst: Pointer;   // void* in/out
  lpcb: Pointer   // DWORD* in/out
): Integer; stdcall;
  external 'MAPI32.dll' name 'ScCopyProps';

result := DllCall("MAPI32\ScCopyProps"
    , "Int", cValues   ; INT
    , "Ptr", lpPropArray   ; SPropValue* in/out
    , "Ptr", lpvDst   ; void* in/out
    , "Ptr", lpcb   ; DWORD* in/out
    , "Int")   ; return: INT

●ScCopyProps(cValues, lpPropArray, lpvDst, lpcb) = DLL("MAPI32.dll", "int ScCopyProps(int, void*, void*, void*)")
# 呼び出し: ScCopyProps(cValues, lpPropArray, lpvDst, lpcb)
# cValues : INT -> "int"
# lpPropArray : SPropValue* in/out -> "void*"
# lpvDst : void* in/out -> "void*"
# lpcb : DWORD* 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)。