CreateDXGIFactory1

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

HRESULT CreateDXGIFactory1(
    const GUID* riid,
    void** ppFactory
);

<DllImport("dxgi.dll", ExactSpelling:=True)>
Public Shared Function CreateDXGIFactory1(
    ByRef riid As Guid,   ' GUID*
    ppFactory As IntPtr   ' void** out
) As Integer
End Function

' riid : GUID*
' ppFactory : void** out
Declare PtrSafe Function CreateDXGIFactory1 Lib "dxgi" ( _
    ByVal riid As LongPtr, _
    ByVal ppFactory 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

CreateDXGIFactory1 = ctypes.windll.dxgi.CreateDXGIFactory1
CreateDXGIFactory1.restype = ctypes.c_int
CreateDXGIFactory1.argtypes = [
    ctypes.c_void_p,  # riid : GUID*
    ctypes.c_void_p,  # ppFactory : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dxgi.dll')
CreateDXGIFactory1 = Fiddle::Function.new(
  lib['CreateDXGIFactory1'],
  [
    Fiddle::TYPE_VOIDP,  # riid : GUID*
    Fiddle::TYPE_VOIDP,  # ppFactory : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "dxgi")]
extern "system" {
    fn CreateDXGIFactory1(
        riid: *const GUID,  // GUID*
        ppFactory: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dxgi.dll")]
public static extern int CreateDXGIFactory1(ref Guid riid, IntPtr ppFactory);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dxgi_CreateDXGIFactory1' -Namespace Win32 -PassThru
# $api::CreateDXGIFactory1(riid, ppFactory)

#uselib "dxgi.dll"
#func global CreateDXGIFactory1 "CreateDXGIFactory1" sptr, sptr
; CreateDXGIFactory1 varptr(riid), ppFactory   ; 戻り値は stat
; riid : GUID* -> "sptr"
; ppFactory : 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 "dxgi.dll"
#cfunc global CreateDXGIFactory1 "CreateDXGIFactory1" var, sptr
; res = CreateDXGIFactory1(riid, ppFactory)
; riid : GUID* -> "var"
; ppFactory : 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 CreateDXGIFactory1(GUID* riid, void** ppFactory)
#uselib "dxgi.dll"
#cfunc global CreateDXGIFactory1 "CreateDXGIFactory1" var, intptr
; res = CreateDXGIFactory1(riid, ppFactory)
; riid : GUID* -> "var"
; ppFactory : 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 (
	dxgi = windows.NewLazySystemDLL("dxgi.dll")
	procCreateDXGIFactory1 = dxgi.NewProc("CreateDXGIFactory1")
)

// riid (GUID*), ppFactory (void** out)
r1, _, err := procCreateDXGIFactory1.Call(
	uintptr(riid),
	uintptr(ppFactory),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function CreateDXGIFactory1(
  riid: PGUID;   // GUID*
  ppFactory: Pointer   // void** out
): Integer; stdcall;
  external 'dxgi.dll' name 'CreateDXGIFactory1';

result := DllCall("dxgi\CreateDXGIFactory1"
    , "Ptr", riid   ; GUID*
    , "Ptr", ppFactory   ; void** out
    , "Int")   ; return: HRESULT

●CreateDXGIFactory1(riid, ppFactory) = DLL("dxgi.dll", "int CreateDXGIFactory1(void*, void*)")
# 呼び出し: CreateDXGIFactory1(riid, ppFactory)
# riid : GUID* -> "void*"
# ppFactory : 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)。