RTFSync

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

HRESULT RTFSync(
    IMessage* lpMessage,
    DWORD ulFlags,
    BOOL* lpfMessageUpdated
);

<DllImport("MAPI32.dll", ExactSpelling:=True)>
Public Shared Function RTFSync(
    lpMessage As IntPtr,   ' IMessage*
    ulFlags As UInteger,   ' DWORD
    ByRef lpfMessageUpdated As Integer   ' BOOL* in/out
) As Integer
End Function

' lpMessage : IMessage*
' ulFlags : DWORD
' lpfMessageUpdated : BOOL* in/out
Declare PtrSafe Function RTFSync Lib "mapi32" ( _
    ByVal lpMessage As LongPtr, _
    ByVal ulFlags As Long, _
    ByRef lpfMessageUpdated 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

RTFSync = ctypes.windll.mapi32.RTFSync
RTFSync.restype = ctypes.c_int
RTFSync.argtypes = [
    ctypes.c_void_p,  # lpMessage : IMessage*
    wintypes.DWORD,  # ulFlags : DWORD
    ctypes.c_void_p,  # lpfMessageUpdated : BOOL* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MAPI32.dll')
RTFSync = Fiddle::Function.new(
  lib['RTFSync'],
  [
    Fiddle::TYPE_VOIDP,  # lpMessage : IMessage*
    -Fiddle::TYPE_INT,  # ulFlags : DWORD
    Fiddle::TYPE_VOIDP,  # lpfMessageUpdated : BOOL* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mapi32")]
extern "system" {
    fn RTFSync(
        lpMessage: *mut core::ffi::c_void,  // IMessage*
        ulFlags: u32,  // DWORD
        lpfMessageUpdated: *mut i32  // BOOL* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MAPI32.dll")]
public static extern int RTFSync(IntPtr lpMessage, uint ulFlags, ref int lpfMessageUpdated);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MAPI32_RTFSync' -Namespace Win32 -PassThru
# $api::RTFSync(lpMessage, ulFlags, lpfMessageUpdated)

#uselib "MAPI32.dll"
#func global RTFSync "RTFSync" sptr, sptr, sptr
; RTFSync lpMessage, ulFlags, lpfMessageUpdated   ; 戻り値は stat
; lpMessage : IMessage* -> "sptr"
; ulFlags : DWORD -> "sptr"
; lpfMessageUpdated : BOOL* 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 RTFSync "RTFSync" sptr, int, int
; res = RTFSync(lpMessage, ulFlags, lpfMessageUpdated)
; lpMessage : IMessage* -> "sptr"
; ulFlags : DWORD -> "int"
; lpfMessageUpdated : BOOL* in/out -> "int"

; HRESULT RTFSync(IMessage* lpMessage, DWORD ulFlags, BOOL* lpfMessageUpdated)
#uselib "MAPI32.dll"
#cfunc global RTFSync "RTFSync" intptr, int, int
; res = RTFSync(lpMessage, ulFlags, lpfMessageUpdated)
; lpMessage : IMessage* -> "intptr"
; ulFlags : DWORD -> "int"
; lpfMessageUpdated : BOOL* in/out -> "int"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	mapi32 = windows.NewLazySystemDLL("MAPI32.dll")
	procRTFSync = mapi32.NewProc("RTFSync")
)

// lpMessage (IMessage*), ulFlags (DWORD), lpfMessageUpdated (BOOL* in/out)
r1, _, err := procRTFSync.Call(
	uintptr(lpMessage),
	uintptr(ulFlags),
	uintptr(lpfMessageUpdated),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function RTFSync(
  lpMessage: Pointer;   // IMessage*
  ulFlags: DWORD;   // DWORD
  lpfMessageUpdated: Pointer   // BOOL* in/out
): Integer; stdcall;
  external 'MAPI32.dll' name 'RTFSync';

result := DllCall("MAPI32\RTFSync"
    , "Ptr", lpMessage   ; IMessage*
    , "UInt", ulFlags   ; DWORD
    , "Ptr", lpfMessageUpdated   ; BOOL* in/out
    , "Int")   ; return: HRESULT

●RTFSync(lpMessage, ulFlags, lpfMessageUpdated) = DLL("MAPI32.dll", "int RTFSync(void*, dword, void*)")
# 呼び出し: RTFSync(lpMessage, ulFlags, lpfMessageUpdated)
# lpMessage : IMessage* -> "void*"
# ulFlags : DWORD -> "dword"
# lpfMessageUpdated : BOOL* 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)。