MAPIInitIdle

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

INT MAPIInitIdle(
    void* lpvReserved
);

<DllImport("MAPI32.dll", ExactSpelling:=True)>
Public Shared Function MAPIInitIdle(
    lpvReserved As IntPtr   ' void* in/out
) As Integer
End Function

' lpvReserved : void* in/out
Declare PtrSafe Function MAPIInitIdle Lib "mapi32" ( _
    ByVal lpvReserved 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

MAPIInitIdle = ctypes.windll.mapi32.MAPIInitIdle
MAPIInitIdle.restype = ctypes.c_int
MAPIInitIdle.argtypes = [
    ctypes.POINTER(None),  # lpvReserved : void* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MAPI32.dll')
MAPIInitIdle = Fiddle::Function.new(
  lib['MAPIInitIdle'],
  [
    Fiddle::TYPE_VOIDP,  # lpvReserved : void* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mapi32")]
extern "system" {
    fn MAPIInitIdle(
        lpvReserved: *mut ()  // void* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MAPI32.dll")]
public static extern int MAPIInitIdle(IntPtr lpvReserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MAPI32_MAPIInitIdle' -Namespace Win32 -PassThru
# $api::MAPIInitIdle(lpvReserved)

#uselib "MAPI32.dll"
#func global MAPIInitIdle "MAPIInitIdle" sptr
; MAPIInitIdle lpvReserved   ; 戻り値は stat
; lpvReserved : void* 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 MAPIInitIdle "MAPIInitIdle" sptr
; res = MAPIInitIdle(lpvReserved)
; lpvReserved : void* in/out -> "sptr"

; INT MAPIInitIdle(void* lpvReserved)
#uselib "MAPI32.dll"
#cfunc global MAPIInitIdle "MAPIInitIdle" intptr
; res = MAPIInitIdle(lpvReserved)
; lpvReserved : void* in/out -> "intptr"

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

var (
	mapi32 = windows.NewLazySystemDLL("MAPI32.dll")
	procMAPIInitIdle = mapi32.NewProc("MAPIInitIdle")
)

// lpvReserved (void* in/out)
r1, _, err := procMAPIInitIdle.Call(
	uintptr(lpvReserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function MAPIInitIdle(
  lpvReserved: Pointer   // void* in/out
): Integer; stdcall;
  external 'MAPI32.dll' name 'MAPIInitIdle';

result := DllCall("MAPI32\MAPIInitIdle"
    , "Ptr", lpvReserved   ; void* in/out
    , "Int")   ; return: INT

●MAPIInitIdle(lpvReserved) = DLL("MAPI32.dll", "int MAPIInitIdle(void*)")
# 呼び出し: MAPIInitIdle(lpvReserved)
# lpvReserved : void* 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)。