GetHGlobalFromILockBytes

// OLE32.dll
#include <windows.h>

HRESULT GetHGlobalFromILockBytes(
    ILockBytes* plkbyt,
    HGLOBAL* phglobal
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function GetHGlobalFromILockBytes(
    plkbyt As IntPtr,   ' ILockBytes*
    phglobal As IntPtr   ' HGLOBAL* out
) As Integer
End Function

' plkbyt : ILockBytes*
' phglobal : HGLOBAL* out
Declare PtrSafe Function GetHGlobalFromILockBytes Lib "ole32" ( _
    ByVal plkbyt As LongPtr, _
    ByVal phglobal 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

GetHGlobalFromILockBytes = ctypes.windll.ole32.GetHGlobalFromILockBytes
GetHGlobalFromILockBytes.restype = ctypes.c_int
GetHGlobalFromILockBytes.argtypes = [
    ctypes.c_void_p,  # plkbyt : ILockBytes*
    ctypes.c_void_p,  # phglobal : HGLOBAL* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
GetHGlobalFromILockBytes = Fiddle::Function.new(
  lib['GetHGlobalFromILockBytes'],
  [
    Fiddle::TYPE_VOIDP,  # plkbyt : ILockBytes*
    Fiddle::TYPE_VOIDP,  # phglobal : HGLOBAL* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn GetHGlobalFromILockBytes(
        plkbyt: *mut core::ffi::c_void,  // ILockBytes*
        phglobal: *mut *mut core::ffi::c_void  // HGLOBAL* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern int GetHGlobalFromILockBytes(IntPtr plkbyt, IntPtr phglobal);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_GetHGlobalFromILockBytes' -Namespace Win32 -PassThru
# $api::GetHGlobalFromILockBytes(plkbyt, phglobal)

#uselib "OLE32.dll"
#func global GetHGlobalFromILockBytes "GetHGlobalFromILockBytes" sptr, sptr
; GetHGlobalFromILockBytes plkbyt, phglobal   ; 戻り値は stat
; plkbyt : ILockBytes* -> "sptr"
; phglobal : HGLOBAL* 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 "OLE32.dll"
#cfunc global GetHGlobalFromILockBytes "GetHGlobalFromILockBytes" sptr, sptr
; res = GetHGlobalFromILockBytes(plkbyt, phglobal)
; plkbyt : ILockBytes* -> "sptr"
; phglobal : HGLOBAL* out -> "sptr"

; HRESULT GetHGlobalFromILockBytes(ILockBytes* plkbyt, HGLOBAL* phglobal)
#uselib "OLE32.dll"
#cfunc global GetHGlobalFromILockBytes "GetHGlobalFromILockBytes" intptr, intptr
; res = GetHGlobalFromILockBytes(plkbyt, phglobal)
; plkbyt : ILockBytes* -> "intptr"
; phglobal : HGLOBAL* out -> "intptr"

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

var (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procGetHGlobalFromILockBytes = ole32.NewProc("GetHGlobalFromILockBytes")
)

// plkbyt (ILockBytes*), phglobal (HGLOBAL* out)
r1, _, err := procGetHGlobalFromILockBytes.Call(
	uintptr(plkbyt),
	uintptr(phglobal),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetHGlobalFromILockBytes(
  plkbyt: Pointer;   // ILockBytes*
  phglobal: Pointer   // HGLOBAL* out
): Integer; stdcall;
  external 'OLE32.dll' name 'GetHGlobalFromILockBytes';

result := DllCall("OLE32\GetHGlobalFromILockBytes"
    , "Ptr", plkbyt   ; ILockBytes*
    , "Ptr", phglobal   ; HGLOBAL* out
    , "Int")   ; return: HRESULT

●GetHGlobalFromILockBytes(plkbyt, phglobal) = DLL("OLE32.dll", "int GetHGlobalFromILockBytes(void*, void*)")
# 呼び出し: GetHGlobalFromILockBytes(plkbyt, phglobal)
# plkbyt : ILockBytes* -> "void*"
# phglobal : HGLOBAL* 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 "ole32" fn GetHGlobalFromILockBytes(
    plkbyt: ?*anyopaque, // ILockBytes*
    phglobal: ?*anyopaque // HGLOBAL* out
) callconv(std.os.windows.WINAPI) i32;

proc GetHGlobalFromILockBytes(
    plkbyt: pointer,  # ILockBytes*
    phglobal: pointer  # HGLOBAL* out
): int32 {.importc: "GetHGlobalFromILockBytes", stdcall, dynlib: "OLE32.dll".}

pragma(lib, "ole32");
extern(Windows)
int GetHGlobalFromILockBytes(
    void* plkbyt,   // ILockBytes*
    void* phglobal   // HGLOBAL* out
);

ccall((:GetHGlobalFromILockBytes, "OLE32.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{Cvoid}),
      plkbyt, phglobal)
# plkbyt : ILockBytes* -> Ptr{Cvoid}
# phglobal : HGLOBAL* out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t GetHGlobalFromILockBytes(
    void* plkbyt,
    void* phglobal);
]]
local ole32 = ffi.load("ole32")
-- ole32.GetHGlobalFromILockBytes(plkbyt, phglobal)
-- plkbyt : ILockBytes*
-- phglobal : HGLOBAL* 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('OLE32.dll');
const GetHGlobalFromILockBytes = lib.func('__stdcall', 'GetHGlobalFromILockBytes', 'int32_t', ['void *', 'void *']);
// GetHGlobalFromILockBytes(plkbyt, phglobal)
// plkbyt : ILockBytes* -> 'void *'
// phglobal : HGLOBAL* out -> 'void *'
// 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("OLE32.dll", {
  GetHGlobalFromILockBytes: { parameters: ["pointer", "pointer"], result: "i32" },
});
// lib.symbols.GetHGlobalFromILockBytes(plkbyt, phglobal)
// plkbyt : ILockBytes* -> "pointer"
// phglobal : HGLOBAL* 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 GetHGlobalFromILockBytes(
    void* plkbyt,
    void* phglobal);
C, "OLE32.dll");
// $ffi->GetHGlobalFromILockBytes(plkbyt, phglobal);
// plkbyt : ILockBytes*
// phglobal : HGLOBAL* 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 Ole32 extends StdCallLibrary {
    Ole32 INSTANCE = Native.load("ole32", Ole32.class);
    int GetHGlobalFromILockBytes(
        Pointer plkbyt,   // ILockBytes*
        Pointer phglobal   // HGLOBAL* out
    );
}

@[Link("ole32")]
lib LibOLE32
  fun GetHGlobalFromILockBytes = GetHGlobalFromILockBytes(
    plkbyt : Void*,   # ILockBytes*
    phglobal : Void*   # HGLOBAL* 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 GetHGlobalFromILockBytesNative = Int32 Function(Pointer<Void>, Pointer<Void>);
typedef GetHGlobalFromILockBytesDart = int Function(Pointer<Void>, Pointer<Void>);
final GetHGlobalFromILockBytes = DynamicLibrary.open('OLE32.dll')
    .lookupFunction<GetHGlobalFromILockBytesNative, GetHGlobalFromILockBytesDart>('GetHGlobalFromILockBytes');
// plkbyt : ILockBytes* -> Pointer<Void>
// phglobal : HGLOBAL* out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetHGlobalFromILockBytes(
  plkbyt: Pointer;   // ILockBytes*
  phglobal: Pointer   // HGLOBAL* out
): Integer; stdcall;
  external 'OLE32.dll' name 'GetHGlobalFromILockBytes';

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

foreign import stdcall safe "GetHGlobalFromILockBytes"
  c_GetHGlobalFromILockBytes :: Ptr () -> Ptr () -> IO Int32
-- plkbyt : ILockBytes* -> Ptr ()
-- phglobal : HGLOBAL* out -> Ptr ()
-- 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 gethglobalfromilockbytes =
  foreign "GetHGlobalFromILockBytes"
    ((ptr void) @-> (ptr void) @-> returning int32_t)
(* plkbyt : ILockBytes* -> (ptr void) *)
(* phglobal : HGLOBAL* out -> (ptr void) *)
(* 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 ole32 (t "OLE32.dll"))
(cffi:use-foreign-library ole32)

(cffi:defcfun ("GetHGlobalFromILockBytes" get-hglobal-from-ilock-bytes :convention :stdcall) :int32
  (plkbyt :pointer)   ; ILockBytes*
  (phglobal :pointer))   ; HGLOBAL* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetHGlobalFromILockBytes = Win32::API::More->new('OLE32',
    'int GetHGlobalFromILockBytes(LPVOID plkbyt, HANDLE phglobal)');
# my $ret = $GetHGlobalFromILockBytes->Call($plkbyt, $phglobal);
# plkbyt : ILockBytes* -> LPVOID
# phglobal : HGLOBAL* out -> HANDLE
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。