DispInvoke

// OLEAUT32.dll
#include <windows.h>

HRESULT DispInvoke(
    void* _this,
    ITypeInfo* ptinfo,
    INT dispidMember,
    WORD wFlags,
    DISPPARAMS* pparams,
    VARIANT* pvarResult,
    EXCEPINFO* pexcepinfo,
    DWORD* puArgErr
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function DispInvoke(
    _this As IntPtr,   ' void* in/out
    ptinfo As IntPtr,   ' ITypeInfo*
    dispidMember As Integer,   ' INT
    wFlags As UShort,   ' WORD
    pparams As IntPtr,   ' DISPPARAMS* in/out
    pvarResult As IntPtr,   ' VARIANT* in/out
    pexcepinfo As IntPtr,   ' EXCEPINFO* in/out
    ByRef puArgErr As UInteger   ' DWORD* in/out
) As Integer
End Function

' _this : void* in/out
' ptinfo : ITypeInfo*
' dispidMember : INT
' wFlags : WORD
' pparams : DISPPARAMS* in/out
' pvarResult : VARIANT* in/out
' pexcepinfo : EXCEPINFO* in/out
' puArgErr : DWORD* in/out
Declare PtrSafe Function DispInvoke Lib "oleaut32" ( _
    ByVal _this As LongPtr, _
    ByVal ptinfo As LongPtr, _
    ByVal dispidMember As Long, _
    ByVal wFlags As Integer, _
    ByVal pparams As LongPtr, _
    ByVal pvarResult As LongPtr, _
    ByVal pexcepinfo As LongPtr, _
    ByRef puArgErr 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

DispInvoke = ctypes.windll.oleaut32.DispInvoke
DispInvoke.restype = ctypes.c_int
DispInvoke.argtypes = [
    ctypes.POINTER(None),  # _this : void* in/out
    ctypes.c_void_p,  # ptinfo : ITypeInfo*
    ctypes.c_int,  # dispidMember : INT
    ctypes.c_ushort,  # wFlags : WORD
    ctypes.c_void_p,  # pparams : DISPPARAMS* in/out
    ctypes.c_void_p,  # pvarResult : VARIANT* in/out
    ctypes.c_void_p,  # pexcepinfo : EXCEPINFO* in/out
    ctypes.POINTER(wintypes.DWORD),  # puArgErr : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
DispInvoke = Fiddle::Function.new(
  lib['DispInvoke'],
  [
    Fiddle::TYPE_VOIDP,  # _this : void* in/out
    Fiddle::TYPE_VOIDP,  # ptinfo : ITypeInfo*
    Fiddle::TYPE_INT,  # dispidMember : INT
    -Fiddle::TYPE_SHORT,  # wFlags : WORD
    Fiddle::TYPE_VOIDP,  # pparams : DISPPARAMS* in/out
    Fiddle::TYPE_VOIDP,  # pvarResult : VARIANT* in/out
    Fiddle::TYPE_VOIDP,  # pexcepinfo : EXCEPINFO* in/out
    Fiddle::TYPE_VOIDP,  # puArgErr : DWORD* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "oleaut32")]
extern "system" {
    fn DispInvoke(
        _this: *mut (),  // void* in/out
        ptinfo: *mut core::ffi::c_void,  // ITypeInfo*
        dispidMember: i32,  // INT
        wFlags: u16,  // WORD
        pparams: *mut DISPPARAMS,  // DISPPARAMS* in/out
        pvarResult: *mut VARIANT,  // VARIANT* in/out
        pexcepinfo: *mut EXCEPINFO,  // EXCEPINFO* in/out
        puArgErr: *mut u32  // DWORD* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern int DispInvoke(IntPtr _this, IntPtr ptinfo, int dispidMember, ushort wFlags, IntPtr pparams, IntPtr pvarResult, IntPtr pexcepinfo, ref uint puArgErr);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_DispInvoke' -Namespace Win32 -PassThru
# $api::DispInvoke(_this, ptinfo, dispidMember, wFlags, pparams, pvarResult, pexcepinfo, puArgErr)

#uselib "OLEAUT32.dll"
#func global DispInvoke "DispInvoke" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; DispInvoke _this, ptinfo, dispidMember, wFlags, varptr(pparams), varptr(pvarResult), varptr(pexcepinfo), varptr(puArgErr)   ; 戻り値は stat
; _this : void* in/out -> "sptr"
; ptinfo : ITypeInfo* -> "sptr"
; dispidMember : INT -> "sptr"
; wFlags : WORD -> "sptr"
; pparams : DISPPARAMS* in/out -> "sptr"
; pvarResult : VARIANT* in/out -> "sptr"
; pexcepinfo : EXCEPINFO* in/out -> "sptr"
; puArgErr : 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。

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

var (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procDispInvoke = oleaut32.NewProc("DispInvoke")
)

// _this (void* in/out), ptinfo (ITypeInfo*), dispidMember (INT), wFlags (WORD), pparams (DISPPARAMS* in/out), pvarResult (VARIANT* in/out), pexcepinfo (EXCEPINFO* in/out), puArgErr (DWORD* in/out)
r1, _, err := procDispInvoke.Call(
	uintptr(_this),
	uintptr(ptinfo),
	uintptr(dispidMember),
	uintptr(wFlags),
	uintptr(pparams),
	uintptr(pvarResult),
	uintptr(pexcepinfo),
	uintptr(puArgErr),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DispInvoke(
  _this: Pointer;   // void* in/out
  ptinfo: Pointer;   // ITypeInfo*
  dispidMember: Integer;   // INT
  wFlags: Word;   // WORD
  pparams: Pointer;   // DISPPARAMS* in/out
  pvarResult: Pointer;   // VARIANT* in/out
  pexcepinfo: Pointer;   // EXCEPINFO* in/out
  puArgErr: Pointer   // DWORD* in/out
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'DispInvoke';

result := DllCall("OLEAUT32\DispInvoke"
    , "Ptr", _this   ; void* in/out
    , "Ptr", ptinfo   ; ITypeInfo*
    , "Int", dispidMember   ; INT
    , "UShort", wFlags   ; WORD
    , "Ptr", pparams   ; DISPPARAMS* in/out
    , "Ptr", pvarResult   ; VARIANT* in/out
    , "Ptr", pexcepinfo   ; EXCEPINFO* in/out
    , "Ptr", puArgErr   ; DWORD* in/out
    , "Int")   ; return: HRESULT

●DispInvoke(_this, ptinfo, dispidMember, wFlags, pparams, pvarResult, pexcepinfo, puArgErr) = DLL("OLEAUT32.dll", "int DispInvoke(void*, void*, int, int, void*, void*, void*, void*)")
# 呼び出し: DispInvoke(_this, ptinfo, dispidMember, wFlags, pparams, pvarResult, pexcepinfo, puArgErr)
# _this : void* in/out -> "void*"
# ptinfo : ITypeInfo* -> "void*"
# dispidMember : INT -> "int"
# wFlags : WORD -> "int"
# pparams : DISPPARAMS* in/out -> "void*"
# pvarResult : VARIANT* in/out -> "void*"
# pexcepinfo : EXCEPINFO* in/out -> "void*"
# puArgErr : 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)。

const std = @import("std");

extern "oleaut32" fn DispInvoke(
    _this: ?*anyopaque, // void* in/out
    ptinfo: ?*anyopaque, // ITypeInfo*
    dispidMember: i32, // INT
    wFlags: u16, // WORD
    pparams: [*c]DISPPARAMS, // DISPPARAMS* in/out
    pvarResult: [*c]VARIANT, // VARIANT* in/out
    pexcepinfo: [*c]EXCEPINFO, // EXCEPINFO* in/out
    puArgErr: [*c]u32 // DWORD* in/out
) callconv(std.os.windows.WINAPI) i32;

proc DispInvoke(
    _this: pointer,  # void* in/out
    ptinfo: pointer,  # ITypeInfo*
    dispidMember: int32,  # INT
    wFlags: uint16,  # WORD
    pparams: ptr DISPPARAMS,  # DISPPARAMS* in/out
    pvarResult: ptr VARIANT,  # VARIANT* in/out
    pexcepinfo: ptr EXCEPINFO,  # EXCEPINFO* in/out
    puArgErr: ptr uint32  # DWORD* in/out
): int32 {.importc: "DispInvoke", stdcall, dynlib: "OLEAUT32.dll".}

pragma(lib, "oleaut32");
extern(Windows)
int DispInvoke(
    void* _this,   // void* in/out
    void* ptinfo,   // ITypeInfo*
    int dispidMember,   // INT
    ushort wFlags,   // WORD
    DISPPARAMS* pparams,   // DISPPARAMS* in/out
    VARIANT* pvarResult,   // VARIANT* in/out
    EXCEPINFO* pexcepinfo,   // EXCEPINFO* in/out
    uint* puArgErr   // DWORD* in/out
);

ccall((:DispInvoke, "OLEAUT32.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{Cvoid}, Int32, UInt16, Ptr{DISPPARAMS}, Ptr{VARIANT}, Ptr{EXCEPINFO}, Ptr{UInt32}),
      _this, ptinfo, dispidMember, wFlags, pparams, pvarResult, pexcepinfo, puArgErr)
# _this : void* in/out -> Ptr{Cvoid}
# ptinfo : ITypeInfo* -> Ptr{Cvoid}
# dispidMember : INT -> Int32
# wFlags : WORD -> UInt16
# pparams : DISPPARAMS* in/out -> Ptr{DISPPARAMS}
# pvarResult : VARIANT* in/out -> Ptr{VARIANT}
# pexcepinfo : EXCEPINFO* in/out -> Ptr{EXCEPINFO}
# puArgErr : DWORD* in/out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t DispInvoke(
    void* _this,
    void* ptinfo,
    int32_t dispidMember,
    uint16_t wFlags,
    void* pparams,
    void* pvarResult,
    void* pexcepinfo,
    uint32_t* puArgErr);
]]
local oleaut32 = ffi.load("oleaut32")
-- oleaut32.DispInvoke(_this, ptinfo, dispidMember, wFlags, pparams, pvarResult, pexcepinfo, puArgErr)
-- _this : void* in/out
-- ptinfo : ITypeInfo*
-- dispidMember : INT
-- wFlags : WORD
-- pparams : DISPPARAMS* in/out
-- pvarResult : VARIANT* in/out
-- pexcepinfo : EXCEPINFO* in/out
-- puArgErr : DWORD* in/out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('OLEAUT32.dll');
const DispInvoke = lib.func('__stdcall', 'DispInvoke', 'int32_t', ['void *', 'void *', 'int32_t', 'uint16_t', 'void *', 'void *', 'void *', 'uint32_t *']);
// DispInvoke(_this, ptinfo, dispidMember, wFlags, pparams, pvarResult, pexcepinfo, puArgErr)
// _this : void* in/out -> 'void *'
// ptinfo : ITypeInfo* -> 'void *'
// dispidMember : INT -> 'int32_t'
// wFlags : WORD -> 'uint16_t'
// pparams : DISPPARAMS* in/out -> 'void *'
// pvarResult : VARIANT* in/out -> 'void *'
// pexcepinfo : EXCEPINFO* in/out -> 'void *'
// puArgErr : DWORD* in/out -> 'uint32_t *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("OLEAUT32.dll", {
  DispInvoke: { parameters: ["pointer", "pointer", "i32", "u16", "pointer", "pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.DispInvoke(_this, ptinfo, dispidMember, wFlags, pparams, pvarResult, pexcepinfo, puArgErr)
// _this : void* in/out -> "pointer"
// ptinfo : ITypeInfo* -> "pointer"
// dispidMember : INT -> "i32"
// wFlags : WORD -> "u16"
// pparams : DISPPARAMS* in/out -> "pointer"
// pvarResult : VARIANT* in/out -> "pointer"
// pexcepinfo : EXCEPINFO* in/out -> "pointer"
// puArgErr : DWORD* in/out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t DispInvoke(
    void* _this,
    void* ptinfo,
    int32_t dispidMember,
    uint16_t wFlags,
    void* pparams,
    void* pvarResult,
    void* pexcepinfo,
    uint32_t* puArgErr);
C, "OLEAUT32.dll");
// $ffi->DispInvoke(_this, ptinfo, dispidMember, wFlags, pparams, pvarResult, pexcepinfo, puArgErr);
// _this : void* in/out
// ptinfo : ITypeInfo*
// dispidMember : INT
// wFlags : WORD
// pparams : DISPPARAMS* in/out
// pvarResult : VARIANT* in/out
// pexcepinfo : EXCEPINFO* in/out
// puArgErr : DWORD* in/out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Oleaut32 extends StdCallLibrary {
    Oleaut32 INSTANCE = Native.load("oleaut32", Oleaut32.class);
    int DispInvoke(
        Pointer _this,   // void* in/out
        Pointer ptinfo,   // ITypeInfo*
        int dispidMember,   // INT
        short wFlags,   // WORD
        Pointer pparams,   // DISPPARAMS* in/out
        Pointer pvarResult,   // VARIANT* in/out
        Pointer pexcepinfo,   // EXCEPINFO* in/out
        IntByReference puArgErr   // DWORD* in/out
    );
}

@[Link("oleaut32")]
lib LibOLEAUT32
  fun DispInvoke = DispInvoke(
    _this : Void*,   # void* in/out
    ptinfo : Void*,   # ITypeInfo*
    dispidMember : Int32,   # INT
    wFlags : UInt16,   # WORD
    pparams : DISPPARAMS*,   # DISPPARAMS* in/out
    pvarResult : VARIANT*,   # VARIANT* in/out
    pexcepinfo : EXCEPINFO*,   # EXCEPINFO* in/out
    puArgErr : UInt32*   # DWORD* in/out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef DispInvokeNative = Int32 Function(Pointer<Void>, Pointer<Void>, Int32, Uint16, Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Uint32>);
typedef DispInvokeDart = int Function(Pointer<Void>, Pointer<Void>, int, int, Pointer<Void>, Pointer<Void>, Pointer<Void>, Pointer<Uint32>);
final DispInvoke = DynamicLibrary.open('OLEAUT32.dll')
    .lookupFunction<DispInvokeNative, DispInvokeDart>('DispInvoke');
// _this : void* in/out -> Pointer<Void>
// ptinfo : ITypeInfo* -> Pointer<Void>
// dispidMember : INT -> Int32
// wFlags : WORD -> Uint16
// pparams : DISPPARAMS* in/out -> Pointer<Void>
// pvarResult : VARIANT* in/out -> Pointer<Void>
// pexcepinfo : EXCEPINFO* in/out -> Pointer<Void>
// puArgErr : DWORD* in/out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DispInvoke(
  _this: Pointer;   // void* in/out
  ptinfo: Pointer;   // ITypeInfo*
  dispidMember: Integer;   // INT
  wFlags: Word;   // WORD
  pparams: Pointer;   // DISPPARAMS* in/out
  pvarResult: Pointer;   // VARIANT* in/out
  pexcepinfo: Pointer;   // EXCEPINFO* in/out
  puArgErr: Pointer   // DWORD* in/out
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'DispInvoke';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "DispInvoke"
  c_DispInvoke :: Ptr () -> Ptr () -> Int32 -> Word16 -> Ptr () -> Ptr () -> Ptr () -> Ptr Word32 -> IO Int32
-- _this : void* in/out -> Ptr ()
-- ptinfo : ITypeInfo* -> Ptr ()
-- dispidMember : INT -> Int32
-- wFlags : WORD -> Word16
-- pparams : DISPPARAMS* in/out -> Ptr ()
-- pvarResult : VARIANT* in/out -> Ptr ()
-- pexcepinfo : EXCEPINFO* in/out -> Ptr ()
-- puArgErr : DWORD* in/out -> Ptr Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let dispinvoke =
  foreign "DispInvoke"
    ((ptr void) @-> (ptr void) @-> int32_t @-> uint16_t @-> (ptr void) @-> (ptr void) @-> (ptr void) @-> (ptr uint32_t) @-> returning int32_t)
(* _this : void* in/out -> (ptr void) *)
(* ptinfo : ITypeInfo* -> (ptr void) *)
(* dispidMember : INT -> int32_t *)
(* wFlags : WORD -> uint16_t *)
(* pparams : DISPPARAMS* in/out -> (ptr void) *)
(* pvarResult : VARIANT* in/out -> (ptr void) *)
(* pexcepinfo : EXCEPINFO* in/out -> (ptr void) *)
(* puArgErr : DWORD* in/out -> (ptr uint32_t) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library oleaut32 (t "OLEAUT32.dll"))
(cffi:use-foreign-library oleaut32)

(cffi:defcfun ("DispInvoke" disp-invoke :convention :stdcall) :int32
  (-this :pointer)   ; void* in/out
  (ptinfo :pointer)   ; ITypeInfo*
  (dispid-member :int32)   ; INT
  (w-flags :uint16)   ; WORD
  (pparams :pointer)   ; DISPPARAMS* in/out
  (pvar-result :pointer)   ; VARIANT* in/out
  (pexcepinfo :pointer)   ; EXCEPINFO* in/out
  (pu-arg-err :pointer))   ; DWORD* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DispInvoke = Win32::API::More->new('OLEAUT32',
    'int DispInvoke(LPVOID _this, LPVOID ptinfo, int dispidMember, WORD wFlags, LPVOID pparams, LPVOID pvarResult, LPVOID pexcepinfo, LPVOID puArgErr)');
# my $ret = $DispInvoke->Call($_this, $ptinfo, $dispidMember, $wFlags, $pparams, $pvarResult, $pexcepinfo, $puArgErr);
# _this : void* in/out -> LPVOID
# ptinfo : ITypeInfo* -> LPVOID
# dispidMember : INT -> int
# wFlags : WORD -> WORD
# pparams : DISPPARAMS* in/out -> LPVOID
# pvarResult : VARIANT* in/out -> LPVOID
# pexcepinfo : EXCEPINFO* in/out -> LPVOID
# puArgErr : DWORD* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。