MTSCreateActivity

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

HRESULT MTSCreateActivity(
    const GUID* riid,
    void** ppobj
);

<DllImport("comsvcs.dll", ExactSpelling:=True)>
Public Shared Function MTSCreateActivity(
    ByRef riid As Guid,   ' GUID*
    ppobj As IntPtr   ' void** in/out
) As Integer
End Function

' riid : GUID*
' ppobj : void** in/out
Declare PtrSafe Function MTSCreateActivity Lib "comsvcs" ( _
    ByVal riid As LongPtr, _
    ByVal ppobj 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

MTSCreateActivity = ctypes.windll.comsvcs.MTSCreateActivity
MTSCreateActivity.restype = ctypes.c_int
MTSCreateActivity.argtypes = [
    ctypes.c_void_p,  # riid : GUID*
    ctypes.c_void_p,  # ppobj : void** in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('comsvcs.dll')
MTSCreateActivity = Fiddle::Function.new(
  lib['MTSCreateActivity'],
  [
    Fiddle::TYPE_VOIDP,  # riid : GUID*
    Fiddle::TYPE_VOIDP,  # ppobj : void** in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "comsvcs")]
extern "system" {
    fn MTSCreateActivity(
        riid: *const GUID,  // GUID*
        ppobj: *mut *mut ()  // void** in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("comsvcs.dll")]
public static extern int MTSCreateActivity(ref Guid riid, IntPtr ppobj);
"@
$api = Add-Type -MemberDefinition $sig -Name 'comsvcs_MTSCreateActivity' -Namespace Win32 -PassThru
# $api::MTSCreateActivity(riid, ppobj)

#uselib "comsvcs.dll"
#func global MTSCreateActivity "MTSCreateActivity" sptr, sptr
; MTSCreateActivity varptr(riid), ppobj   ; 戻り値は stat
; riid : GUID* -> "sptr"
; ppobj : 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 "comsvcs.dll"
#cfunc global MTSCreateActivity "MTSCreateActivity" var, sptr
; res = MTSCreateActivity(riid, ppobj)
; riid : GUID* -> "var"
; ppobj : void** in/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。

; HRESULT MTSCreateActivity(GUID* riid, void** ppobj)
#uselib "comsvcs.dll"
#cfunc global MTSCreateActivity "MTSCreateActivity" var, intptr
; res = MTSCreateActivity(riid, ppobj)
; riid : GUID* -> "var"
; ppobj : void** in/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 (
	comsvcs = windows.NewLazySystemDLL("comsvcs.dll")
	procMTSCreateActivity = comsvcs.NewProc("MTSCreateActivity")
)

// riid (GUID*), ppobj (void** in/out)
r1, _, err := procMTSCreateActivity.Call(
	uintptr(riid),
	uintptr(ppobj),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MTSCreateActivity(
  riid: PGUID;   // GUID*
  ppobj: Pointer   // void** in/out
): Integer; stdcall;
  external 'comsvcs.dll' name 'MTSCreateActivity';

result := DllCall("comsvcs\MTSCreateActivity"
    , "Ptr", riid   ; GUID*
    , "Ptr", ppobj   ; void** in/out
    , "Int")   ; return: HRESULT

●MTSCreateActivity(riid, ppobj) = DLL("comsvcs.dll", "int MTSCreateActivity(void*, void*)")
# 呼び出し: MTSCreateActivity(riid, ppobj)
# riid : GUID* -> "void*"
# ppobj : 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)。