OleSavePictureFile

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

HRESULT OleSavePictureFile(
    IDispatch* lpdispPicture,
    LPWSTR bstrFileName
);

<DllImport("OLEAUT32.dll", ExactSpelling:=True)>
Public Shared Function OleSavePictureFile(
    lpdispPicture As IntPtr,   ' IDispatch*
    <MarshalAs(UnmanagedType.LPWStr)> bstrFileName As String   ' LPWSTR
) As Integer
End Function

' lpdispPicture : IDispatch*
' bstrFileName : LPWSTR
Declare PtrSafe Function OleSavePictureFile Lib "oleaut32" ( _
    ByVal lpdispPicture As LongPtr, _
    ByVal bstrFileName 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

OleSavePictureFile = ctypes.windll.oleaut32.OleSavePictureFile
OleSavePictureFile.restype = ctypes.c_int
OleSavePictureFile.argtypes = [
    ctypes.c_void_p,  # lpdispPicture : IDispatch*
    wintypes.LPCWSTR,  # bstrFileName : LPWSTR
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLEAUT32.dll')
OleSavePictureFile = Fiddle::Function.new(
  lib['OleSavePictureFile'],
  [
    Fiddle::TYPE_VOIDP,  # lpdispPicture : IDispatch*
    Fiddle::TYPE_VOIDP,  # bstrFileName : LPWSTR
  ],
  Fiddle::TYPE_INT)

#[link(name = "oleaut32")]
extern "system" {
    fn OleSavePictureFile(
        lpdispPicture: *mut core::ffi::c_void,  // IDispatch*
        bstrFileName: *mut u16  // LPWSTR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLEAUT32.dll")]
public static extern int OleSavePictureFile(IntPtr lpdispPicture, [MarshalAs(UnmanagedType.LPWStr)] string bstrFileName);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLEAUT32_OleSavePictureFile' -Namespace Win32 -PassThru
# $api::OleSavePictureFile(lpdispPicture, bstrFileName)

#uselib "OLEAUT32.dll"
#func global OleSavePictureFile "OleSavePictureFile" sptr, sptr
; OleSavePictureFile lpdispPicture, bstrFileName   ; 戻り値は stat
; lpdispPicture : IDispatch* -> "sptr"
; bstrFileName : LPWSTR -> "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 "OLEAUT32.dll"
#cfunc global OleSavePictureFile "OleSavePictureFile" sptr, wstr
; res = OleSavePictureFile(lpdispPicture, bstrFileName)
; lpdispPicture : IDispatch* -> "sptr"
; bstrFileName : LPWSTR -> "wstr"

; HRESULT OleSavePictureFile(IDispatch* lpdispPicture, LPWSTR bstrFileName)
#uselib "OLEAUT32.dll"
#cfunc global OleSavePictureFile "OleSavePictureFile" intptr, wstr
; res = OleSavePictureFile(lpdispPicture, bstrFileName)
; lpdispPicture : IDispatch* -> "intptr"
; bstrFileName : LPWSTR -> "wstr"

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

var (
	oleaut32 = windows.NewLazySystemDLL("OLEAUT32.dll")
	procOleSavePictureFile = oleaut32.NewProc("OleSavePictureFile")
)

// lpdispPicture (IDispatch*), bstrFileName (LPWSTR)
r1, _, err := procOleSavePictureFile.Call(
	uintptr(lpdispPicture),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(bstrFileName))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function OleSavePictureFile(
  lpdispPicture: Pointer;   // IDispatch*
  bstrFileName: PWideChar   // LPWSTR
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'OleSavePictureFile';

result := DllCall("OLEAUT32\OleSavePictureFile"
    , "Ptr", lpdispPicture   ; IDispatch*
    , "WStr", bstrFileName   ; LPWSTR
    , "Int")   ; return: HRESULT

●OleSavePictureFile(lpdispPicture, bstrFileName) = DLL("OLEAUT32.dll", "int OleSavePictureFile(void*, char*)")
# 呼び出し: OleSavePictureFile(lpdispPicture, bstrFileName)
# lpdispPicture : IDispatch* -> "void*"
# bstrFileName : LPWSTR -> "char*"
# 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 OleSavePictureFile(
    lpdispPicture: ?*anyopaque, // IDispatch*
    bstrFileName: [*c]const u16 // LPWSTR
) callconv(std.os.windows.WINAPI) i32;

proc OleSavePictureFile(
    lpdispPicture: pointer,  # IDispatch*
    bstrFileName: WideCString  # LPWSTR
): int32 {.importc: "OleSavePictureFile", stdcall, dynlib: "OLEAUT32.dll".}

pragma(lib, "oleaut32");
extern(Windows)
int OleSavePictureFile(
    void* lpdispPicture,   // IDispatch*
    const(wchar)* bstrFileName   // LPWSTR
);

ccall((:OleSavePictureFile, "OLEAUT32.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Cwstring),
      lpdispPicture, bstrFileName)
# lpdispPicture : IDispatch* -> Ptr{Cvoid}
# bstrFileName : LPWSTR -> Cwstring
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t OleSavePictureFile(
    void* lpdispPicture,
    const uint16_t* bstrFileName);
]]
local oleaut32 = ffi.load("oleaut32")
-- oleaut32.OleSavePictureFile(lpdispPicture, bstrFileName)
-- lpdispPicture : IDispatch*
-- bstrFileName : LPWSTR
-- 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 OleSavePictureFile = lib.func('__stdcall', 'OleSavePictureFile', 'int32_t', ['void *', 'str16']);
// OleSavePictureFile(lpdispPicture, bstrFileName)
// lpdispPicture : IDispatch* -> 'void *'
// bstrFileName : LPWSTR -> 'str16'
// 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", {
  OleSavePictureFile: { parameters: ["pointer", "buffer"], result: "i32" },
});
// lib.symbols.OleSavePictureFile(lpdispPicture, bstrFileName)
// lpdispPicture : IDispatch* -> "pointer"
// bstrFileName : LPWSTR -> "buffer"
// 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 OleSavePictureFile(
    void* lpdispPicture,
    const uint16_t* bstrFileName);
C, "OLEAUT32.dll");
// $ffi->OleSavePictureFile(lpdispPicture, bstrFileName);
// lpdispPicture : IDispatch*
// bstrFileName : LPWSTR
// 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 OleSavePictureFile(
        Pointer lpdispPicture,   // IDispatch*
        WString bstrFileName   // LPWSTR
    );
}

@[Link("oleaut32")]
lib LibOLEAUT32
  fun OleSavePictureFile = OleSavePictureFile(
    lpdispPicture : Void*,   # IDispatch*
    bstrFileName : UInt16*   # LPWSTR
  ) : 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 OleSavePictureFileNative = Int32 Function(Pointer<Void>, Pointer<Utf16>);
typedef OleSavePictureFileDart = int Function(Pointer<Void>, Pointer<Utf16>);
final OleSavePictureFile = DynamicLibrary.open('OLEAUT32.dll')
    .lookupFunction<OleSavePictureFileNative, OleSavePictureFileDart>('OleSavePictureFile');
// lpdispPicture : IDispatch* -> Pointer<Void>
// bstrFileName : LPWSTR -> Pointer<Utf16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function OleSavePictureFile(
  lpdispPicture: Pointer;   // IDispatch*
  bstrFileName: PWideChar   // LPWSTR
): Integer; stdcall;
  external 'OLEAUT32.dll' name 'OleSavePictureFile';

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

foreign import stdcall safe "OleSavePictureFile"
  c_OleSavePictureFile :: Ptr () -> CWString -> IO Int32
-- lpdispPicture : IDispatch* -> Ptr ()
-- bstrFileName : LPWSTR -> CWString
-- 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 olesavepicturefile =
  foreign "OleSavePictureFile"
    ((ptr void) @-> (ptr uint16_t) @-> returning int32_t)
(* lpdispPicture : IDispatch* -> (ptr void) *)
(* bstrFileName : LPWSTR -> (ptr uint16_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 ("OleSavePictureFile" ole-save-picture-file :convention :stdcall) :int32
  (lpdisp-picture :pointer)   ; IDispatch*
  (bstr-file-name (:string :encoding :utf-16le)))   ; LPWSTR
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $OleSavePictureFile = Win32::API::More->new('OLEAUT32',
    'int OleSavePictureFile(LPVOID lpdispPicture, LPCWSTR bstrFileName)');
# my $ret = $OleSavePictureFile->Call($lpdispPicture, $bstrFileName);
# lpdispPicture : IDispatch* -> LPVOID
# bstrFileName : LPWSTR -> LPCWSTR
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。