IUnknown_QueryInterface_Proxy

// RPCRT4.dll
#include <windows.h>

HRESULT IUnknown_QueryInterface_Proxy(
    IUnknown* This,
    const GUID* riid,
    void** ppvObject
);

<DllImport("RPCRT4.dll", ExactSpelling:=True)>
Public Shared Function IUnknown_QueryInterface_Proxy(
    This As IntPtr,   ' IUnknown*
    ByRef riid As Guid,   ' GUID*
    ppvObject As IntPtr   ' void** out
) As Integer
End Function

' This : IUnknown*
' riid : GUID*
' ppvObject : void** out
Declare PtrSafe Function IUnknown_QueryInterface_Proxy Lib "rpcrt4" ( _
    ByVal This As LongPtr, _
    ByVal riid As LongPtr, _
    ByVal ppvObject 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

IUnknown_QueryInterface_Proxy = ctypes.windll.rpcrt4.IUnknown_QueryInterface_Proxy
IUnknown_QueryInterface_Proxy.restype = ctypes.c_int
IUnknown_QueryInterface_Proxy.argtypes = [
    ctypes.c_void_p,  # This : IUnknown*
    ctypes.c_void_p,  # riid : GUID*
    ctypes.c_void_p,  # ppvObject : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('RPCRT4.dll')
IUnknown_QueryInterface_Proxy = Fiddle::Function.new(
  lib['IUnknown_QueryInterface_Proxy'],
  [
    Fiddle::TYPE_VOIDP,  # This : IUnknown*
    Fiddle::TYPE_VOIDP,  # riid : GUID*
    Fiddle::TYPE_VOIDP,  # ppvObject : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "rpcrt4")]
extern "system" {
    fn IUnknown_QueryInterface_Proxy(
        This: *mut core::ffi::c_void,  // IUnknown*
        riid: *const GUID,  // GUID*
        ppvObject: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("RPCRT4.dll")]
public static extern int IUnknown_QueryInterface_Proxy(IntPtr This, ref Guid riid, IntPtr ppvObject);
"@
$api = Add-Type -MemberDefinition $sig -Name 'RPCRT4_IUnknown_QueryInterface_Proxy' -Namespace Win32 -PassThru
# $api::IUnknown_QueryInterface_Proxy(This, riid, ppvObject)

#uselib "RPCRT4.dll"
#func global IUnknown_QueryInterface_Proxy "IUnknown_QueryInterface_Proxy" sptr, sptr, sptr
; IUnknown_QueryInterface_Proxy This, varptr(riid), ppvObject   ; 戻り値は stat
; This : IUnknown* -> "sptr"
; riid : GUID* -> "sptr"
; ppvObject : void** 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 "RPCRT4.dll"
#cfunc global IUnknown_QueryInterface_Proxy "IUnknown_QueryInterface_Proxy" sptr, var, sptr
; res = IUnknown_QueryInterface_Proxy(This, riid, ppvObject)
; This : IUnknown* -> "sptr"
; riid : GUID* -> "var"
; ppvObject : void** 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 IUnknown_QueryInterface_Proxy(IUnknown* This, GUID* riid, void** ppvObject)
#uselib "RPCRT4.dll"
#cfunc global IUnknown_QueryInterface_Proxy "IUnknown_QueryInterface_Proxy" intptr, var, intptr
; res = IUnknown_QueryInterface_Proxy(This, riid, ppvObject)
; This : IUnknown* -> "intptr"
; riid : GUID* -> "var"
; ppvObject : void** 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 (
	rpcrt4 = windows.NewLazySystemDLL("RPCRT4.dll")
	procIUnknown_QueryInterface_Proxy = rpcrt4.NewProc("IUnknown_QueryInterface_Proxy")
)

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

function IUnknown_QueryInterface_Proxy(
  This: Pointer;   // IUnknown*
  riid: PGUID;   // GUID*
  ppvObject: Pointer   // void** out
): Integer; stdcall;
  external 'RPCRT4.dll' name 'IUnknown_QueryInterface_Proxy';

result := DllCall("RPCRT4\IUnknown_QueryInterface_Proxy"
    , "Ptr", This   ; IUnknown*
    , "Ptr", riid   ; GUID*
    , "Ptr", ppvObject   ; void** out
    , "Int")   ; return: HRESULT

●IUnknown_QueryInterface_Proxy(This, riid, ppvObject) = DLL("RPCRT4.dll", "int IUnknown_QueryInterface_Proxy(void*, void*, void*)")
# 呼び出し: IUnknown_QueryInterface_Proxy(This, riid, ppvObject)
# This : IUnknown* -> "void*"
# riid : GUID* -> "void*"
# ppvObject : void** 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)。