DWriteCreateFactory

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

HRESULT DWriteCreateFactory(
    DWRITE_FACTORY_TYPE factoryType,
    const GUID* iid,
    void** factory
);

<DllImport("DWrite.dll", ExactSpelling:=True)>
Public Shared Function DWriteCreateFactory(
    factoryType As Integer,   ' DWRITE_FACTORY_TYPE
    ByRef iid As Guid,   ' GUID*
    factory As IntPtr   ' void** out
) As Integer
End Function

' factoryType : DWRITE_FACTORY_TYPE
' iid : GUID*
' factory : void** out
Declare PtrSafe Function DWriteCreateFactory Lib "dwrite" ( _
    ByVal factoryType As Long, _
    ByVal iid As LongPtr, _
    ByVal factory 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

DWriteCreateFactory = ctypes.windll.dwrite.DWriteCreateFactory
DWriteCreateFactory.restype = ctypes.c_int
DWriteCreateFactory.argtypes = [
    ctypes.c_int,  # factoryType : DWRITE_FACTORY_TYPE
    ctypes.c_void_p,  # iid : GUID*
    ctypes.c_void_p,  # factory : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DWrite.dll')
DWriteCreateFactory = Fiddle::Function.new(
  lib['DWriteCreateFactory'],
  [
    Fiddle::TYPE_INT,  # factoryType : DWRITE_FACTORY_TYPE
    Fiddle::TYPE_VOIDP,  # iid : GUID*
    Fiddle::TYPE_VOIDP,  # factory : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "dwrite")]
extern "system" {
    fn DWriteCreateFactory(
        factoryType: i32,  // DWRITE_FACTORY_TYPE
        iid: *const GUID,  // GUID*
        factory: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DWrite.dll")]
public static extern int DWriteCreateFactory(int factoryType, ref Guid iid, IntPtr factory);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DWrite_DWriteCreateFactory' -Namespace Win32 -PassThru
# $api::DWriteCreateFactory(factoryType, iid, factory)

#uselib "DWrite.dll"
#func global DWriteCreateFactory "DWriteCreateFactory" sptr, sptr, sptr
; DWriteCreateFactory factoryType, varptr(iid), factory   ; 戻り値は stat
; factoryType : DWRITE_FACTORY_TYPE -> "sptr"
; iid : GUID* -> "sptr"
; factory : 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 "DWrite.dll"
#cfunc global DWriteCreateFactory "DWriteCreateFactory" int, var, sptr
; res = DWriteCreateFactory(factoryType, iid, factory)
; factoryType : DWRITE_FACTORY_TYPE -> "int"
; iid : GUID* -> "var"
; factory : 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 DWriteCreateFactory(DWRITE_FACTORY_TYPE factoryType, GUID* iid, void** factory)
#uselib "DWrite.dll"
#cfunc global DWriteCreateFactory "DWriteCreateFactory" int, var, intptr
; res = DWriteCreateFactory(factoryType, iid, factory)
; factoryType : DWRITE_FACTORY_TYPE -> "int"
; iid : GUID* -> "var"
; factory : 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 (
	dwrite = windows.NewLazySystemDLL("DWrite.dll")
	procDWriteCreateFactory = dwrite.NewProc("DWriteCreateFactory")
)

// factoryType (DWRITE_FACTORY_TYPE), iid (GUID*), factory (void** out)
r1, _, err := procDWriteCreateFactory.Call(
	uintptr(factoryType),
	uintptr(iid),
	uintptr(factory),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DWriteCreateFactory(
  factoryType: Integer;   // DWRITE_FACTORY_TYPE
  iid: PGUID;   // GUID*
  factory: Pointer   // void** out
): Integer; stdcall;
  external 'DWrite.dll' name 'DWriteCreateFactory';

result := DllCall("DWrite\DWriteCreateFactory"
    , "Int", factoryType   ; DWRITE_FACTORY_TYPE
    , "Ptr", iid   ; GUID*
    , "Ptr", factory   ; void** out
    , "Int")   ; return: HRESULT

●DWriteCreateFactory(factoryType, iid, factory) = DLL("DWrite.dll", "int DWriteCreateFactory(int, void*, void*)")
# 呼び出し: DWriteCreateFactory(factoryType, iid, factory)
# factoryType : DWRITE_FACTORY_TYPE -> "int"
# iid : GUID* -> "void*"
# factory : 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)。