CreateIProp

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

INT CreateIProp(
    GUID* lpInterface,
    LPALLOCATEBUFFER lpAllocateBuffer,
    LPALLOCATEMORE lpAllocateMore,
    LPFREEBUFFER lpFreeBuffer,
    void* lpvReserved,
    IPropData** lppPropData
);

<DllImport("MAPI32.dll", ExactSpelling:=True)>
Public Shared Function CreateIProp(
    ByRef lpInterface As Guid,   ' GUID* in/out
    lpAllocateBuffer As IntPtr,   ' LPALLOCATEBUFFER
    lpAllocateMore As IntPtr,   ' LPALLOCATEMORE
    lpFreeBuffer As IntPtr,   ' LPFREEBUFFER
    lpvReserved As IntPtr,   ' void* in/out
    lppPropData As IntPtr   ' IPropData** out
) As Integer
End Function

' lpInterface : GUID* in/out
' lpAllocateBuffer : LPALLOCATEBUFFER
' lpAllocateMore : LPALLOCATEMORE
' lpFreeBuffer : LPFREEBUFFER
' lpvReserved : void* in/out
' lppPropData : IPropData** out
Declare PtrSafe Function CreateIProp Lib "mapi32" ( _
    ByVal lpInterface As LongPtr, _
    ByVal lpAllocateBuffer As LongPtr, _
    ByVal lpAllocateMore As LongPtr, _
    ByVal lpFreeBuffer As LongPtr, _
    ByVal lpvReserved As LongPtr, _
    ByVal lppPropData 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

CreateIProp = ctypes.windll.mapi32.CreateIProp
CreateIProp.restype = ctypes.c_int
CreateIProp.argtypes = [
    ctypes.c_void_p,  # lpInterface : GUID* in/out
    ctypes.c_void_p,  # lpAllocateBuffer : LPALLOCATEBUFFER
    ctypes.c_void_p,  # lpAllocateMore : LPALLOCATEMORE
    ctypes.c_void_p,  # lpFreeBuffer : LPFREEBUFFER
    ctypes.POINTER(None),  # lpvReserved : void* in/out
    ctypes.c_void_p,  # lppPropData : IPropData** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MAPI32.dll')
CreateIProp = Fiddle::Function.new(
  lib['CreateIProp'],
  [
    Fiddle::TYPE_VOIDP,  # lpInterface : GUID* in/out
    Fiddle::TYPE_VOIDP,  # lpAllocateBuffer : LPALLOCATEBUFFER
    Fiddle::TYPE_VOIDP,  # lpAllocateMore : LPALLOCATEMORE
    Fiddle::TYPE_VOIDP,  # lpFreeBuffer : LPFREEBUFFER
    Fiddle::TYPE_VOIDP,  # lpvReserved : void* in/out
    Fiddle::TYPE_VOIDP,  # lppPropData : IPropData** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mapi32")]
extern "system" {
    fn CreateIProp(
        lpInterface: *mut GUID,  // GUID* in/out
        lpAllocateBuffer: *const core::ffi::c_void,  // LPALLOCATEBUFFER
        lpAllocateMore: *const core::ffi::c_void,  // LPALLOCATEMORE
        lpFreeBuffer: *const core::ffi::c_void,  // LPFREEBUFFER
        lpvReserved: *mut (),  // void* in/out
        lppPropData: *mut *mut core::ffi::c_void  // IPropData** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MAPI32.dll")]
public static extern int CreateIProp(ref Guid lpInterface, IntPtr lpAllocateBuffer, IntPtr lpAllocateMore, IntPtr lpFreeBuffer, IntPtr lpvReserved, IntPtr lppPropData);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MAPI32_CreateIProp' -Namespace Win32 -PassThru
# $api::CreateIProp(lpInterface, lpAllocateBuffer, lpAllocateMore, lpFreeBuffer, lpvReserved, lppPropData)

#uselib "MAPI32.dll"
#func global CreateIProp "CreateIProp" sptr, sptr, sptr, sptr, sptr, sptr
; CreateIProp varptr(lpInterface), lpAllocateBuffer, lpAllocateMore, lpFreeBuffer, lpvReserved, lppPropData   ; 戻り値は stat
; lpInterface : GUID* in/out -> "sptr"
; lpAllocateBuffer : LPALLOCATEBUFFER -> "sptr"
; lpAllocateMore : LPALLOCATEMORE -> "sptr"
; lpFreeBuffer : LPFREEBUFFER -> "sptr"
; lpvReserved : void* in/out -> "sptr"
; lppPropData : IPropData** 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 CreateIProp "CreateIProp" var, sptr, sptr, sptr, sptr, sptr
; res = CreateIProp(lpInterface, lpAllocateBuffer, lpAllocateMore, lpFreeBuffer, lpvReserved, lppPropData)
; lpInterface : GUID* in/out -> "var"
; lpAllocateBuffer : LPALLOCATEBUFFER -> "sptr"
; lpAllocateMore : LPALLOCATEMORE -> "sptr"
; lpFreeBuffer : LPFREEBUFFER -> "sptr"
; lpvReserved : void* in/out -> "sptr"
; lppPropData : IPropData** 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。

; INT CreateIProp(GUID* lpInterface, LPALLOCATEBUFFER lpAllocateBuffer, LPALLOCATEMORE lpAllocateMore, LPFREEBUFFER lpFreeBuffer, void* lpvReserved, IPropData** lppPropData)
#uselib "MAPI32.dll"
#cfunc global CreateIProp "CreateIProp" var, intptr, intptr, intptr, intptr, intptr
; res = CreateIProp(lpInterface, lpAllocateBuffer, lpAllocateMore, lpFreeBuffer, lpvReserved, lppPropData)
; lpInterface : GUID* in/out -> "var"
; lpAllocateBuffer : LPALLOCATEBUFFER -> "intptr"
; lpAllocateMore : LPALLOCATEMORE -> "intptr"
; lpFreeBuffer : LPFREEBUFFER -> "intptr"
; lpvReserved : void* in/out -> "intptr"
; lppPropData : IPropData** 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 (
	mapi32 = windows.NewLazySystemDLL("MAPI32.dll")
	procCreateIProp = mapi32.NewProc("CreateIProp")
)

// lpInterface (GUID* in/out), lpAllocateBuffer (LPALLOCATEBUFFER), lpAllocateMore (LPALLOCATEMORE), lpFreeBuffer (LPFREEBUFFER), lpvReserved (void* in/out), lppPropData (IPropData** out)
r1, _, err := procCreateIProp.Call(
	uintptr(lpInterface),
	uintptr(lpAllocateBuffer),
	uintptr(lpAllocateMore),
	uintptr(lpFreeBuffer),
	uintptr(lpvReserved),
	uintptr(lppPropData),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function CreateIProp(
  lpInterface: PGUID;   // GUID* in/out
  lpAllocateBuffer: Pointer;   // LPALLOCATEBUFFER
  lpAllocateMore: Pointer;   // LPALLOCATEMORE
  lpFreeBuffer: Pointer;   // LPFREEBUFFER
  lpvReserved: Pointer;   // void* in/out
  lppPropData: Pointer   // IPropData** out
): Integer; stdcall;
  external 'MAPI32.dll' name 'CreateIProp';

result := DllCall("MAPI32\CreateIProp"
    , "Ptr", lpInterface   ; GUID* in/out
    , "Ptr", lpAllocateBuffer   ; LPALLOCATEBUFFER
    , "Ptr", lpAllocateMore   ; LPALLOCATEMORE
    , "Ptr", lpFreeBuffer   ; LPFREEBUFFER
    , "Ptr", lpvReserved   ; void* in/out
    , "Ptr", lppPropData   ; IPropData** out
    , "Int")   ; return: INT

●CreateIProp(lpInterface, lpAllocateBuffer, lpAllocateMore, lpFreeBuffer, lpvReserved, lppPropData) = DLL("MAPI32.dll", "int CreateIProp(void*, void*, void*, void*, void*, void*)")
# 呼び出し: CreateIProp(lpInterface, lpAllocateBuffer, lpAllocateMore, lpFreeBuffer, lpvReserved, lppPropData)
# lpInterface : GUID* in/out -> "void*"
# lpAllocateBuffer : LPALLOCATEBUFFER -> "void*"
# lpAllocateMore : LPALLOCATEMORE -> "void*"
# lpFreeBuffer : LPFREEBUFFER -> "void*"
# lpvReserved : void* in/out -> "void*"
# lppPropData : IPropData** 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)。