CoMarshalInterThreadInterfaceInStream

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

HRESULT CoMarshalInterThreadInterfaceInStream(
    const GUID* riid,
    IUnknown* pUnk,
    IStream** ppStm
);

<DllImport("OLE32.dll", ExactSpelling:=True)>
Public Shared Function CoMarshalInterThreadInterfaceInStream(
    ByRef riid As Guid,   ' GUID*
    pUnk As IntPtr,   ' IUnknown*
    ppStm As IntPtr   ' IStream** out
) As Integer
End Function

' riid : GUID*
' pUnk : IUnknown*
' ppStm : IStream** out
Declare PtrSafe Function CoMarshalInterThreadInterfaceInStream Lib "ole32" ( _
    ByVal riid As LongPtr, _
    ByVal pUnk As LongPtr, _
    ByVal ppStm 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

CoMarshalInterThreadInterfaceInStream = ctypes.windll.ole32.CoMarshalInterThreadInterfaceInStream
CoMarshalInterThreadInterfaceInStream.restype = ctypes.c_int
CoMarshalInterThreadInterfaceInStream.argtypes = [
    ctypes.c_void_p,  # riid : GUID*
    ctypes.c_void_p,  # pUnk : IUnknown*
    ctypes.c_void_p,  # ppStm : IStream** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('OLE32.dll')
CoMarshalInterThreadInterfaceInStream = Fiddle::Function.new(
  lib['CoMarshalInterThreadInterfaceInStream'],
  [
    Fiddle::TYPE_VOIDP,  # riid : GUID*
    Fiddle::TYPE_VOIDP,  # pUnk : IUnknown*
    Fiddle::TYPE_VOIDP,  # ppStm : IStream** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ole32")]
extern "system" {
    fn CoMarshalInterThreadInterfaceInStream(
        riid: *const GUID,  // GUID*
        pUnk: *mut core::ffi::c_void,  // IUnknown*
        ppStm: *mut *mut core::ffi::c_void  // IStream** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("OLE32.dll")]
public static extern int CoMarshalInterThreadInterfaceInStream(ref Guid riid, IntPtr pUnk, IntPtr ppStm);
"@
$api = Add-Type -MemberDefinition $sig -Name 'OLE32_CoMarshalInterThreadInterfaceInStream' -Namespace Win32 -PassThru
# $api::CoMarshalInterThreadInterfaceInStream(riid, pUnk, ppStm)

#uselib "OLE32.dll"
#func global CoMarshalInterThreadInterfaceInStream "CoMarshalInterThreadInterfaceInStream" sptr, sptr, sptr
; CoMarshalInterThreadInterfaceInStream varptr(riid), pUnk, ppStm   ; 戻り値は stat
; riid : GUID* -> "sptr"
; pUnk : IUnknown* -> "sptr"
; ppStm : IStream** 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 CoMarshalInterThreadInterfaceInStream "CoMarshalInterThreadInterfaceInStream" var, sptr, sptr
; res = CoMarshalInterThreadInterfaceInStream(riid, pUnk, ppStm)
; riid : GUID* -> "var"
; pUnk : IUnknown* -> "sptr"
; ppStm : IStream** 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 CoMarshalInterThreadInterfaceInStream(GUID* riid, IUnknown* pUnk, IStream** ppStm)
#uselib "OLE32.dll"
#cfunc global CoMarshalInterThreadInterfaceInStream "CoMarshalInterThreadInterfaceInStream" var, intptr, intptr
; res = CoMarshalInterThreadInterfaceInStream(riid, pUnk, ppStm)
; riid : GUID* -> "var"
; pUnk : IUnknown* -> "intptr"
; ppStm : IStream** 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 (
	ole32 = windows.NewLazySystemDLL("OLE32.dll")
	procCoMarshalInterThreadInterfaceInStream = ole32.NewProc("CoMarshalInterThreadInterfaceInStream")
)

// riid (GUID*), pUnk (IUnknown*), ppStm (IStream** out)
r1, _, err := procCoMarshalInterThreadInterfaceInStream.Call(
	uintptr(riid),
	uintptr(pUnk),
	uintptr(ppStm),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function CoMarshalInterThreadInterfaceInStream(
  riid: PGUID;   // GUID*
  pUnk: Pointer;   // IUnknown*
  ppStm: Pointer   // IStream** out
): Integer; stdcall;
  external 'OLE32.dll' name 'CoMarshalInterThreadInterfaceInStream';

result := DllCall("OLE32\CoMarshalInterThreadInterfaceInStream"
    , "Ptr", riid   ; GUID*
    , "Ptr", pUnk   ; IUnknown*
    , "Ptr", ppStm   ; IStream** out
    , "Int")   ; return: HRESULT

●CoMarshalInterThreadInterfaceInStream(riid, pUnk, ppStm) = DLL("OLE32.dll", "int CoMarshalInterThreadInterfaceInStream(void*, void*, void*)")
# 呼び出し: CoMarshalInterThreadInterfaceInStream(riid, pUnk, ppStm)
# riid : GUID* -> "void*"
# pUnk : IUnknown* -> "void*"
# ppStm : IStream** 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)。