DXVAHD_CreateDevice

// dxva2.dll
#include <windows.h>

HRESULT DXVAHD_CreateDevice(
    IDirect3DDevice9Ex* pD3DDevice,
    const DXVAHD_CONTENT_DESC* pContentDesc,
    DXVAHD_DEVICE_USAGE Usage,
    PDXVAHDSW_Plugin pPlugin,   // optional
    IDXVAHD_Device** ppDevice
);

<DllImport("dxva2.dll", ExactSpelling:=True)>
Public Shared Function DXVAHD_CreateDevice(
    pD3DDevice As IntPtr,   ' IDirect3DDevice9Ex*
    pContentDesc As IntPtr,   ' DXVAHD_CONTENT_DESC*
    Usage As Integer,   ' DXVAHD_DEVICE_USAGE
    pPlugin As IntPtr,   ' PDXVAHDSW_Plugin optional
    ppDevice As IntPtr   ' IDXVAHD_Device** out
) As Integer
End Function

' pD3DDevice : IDirect3DDevice9Ex*
' pContentDesc : DXVAHD_CONTENT_DESC*
' Usage : DXVAHD_DEVICE_USAGE
' pPlugin : PDXVAHDSW_Plugin optional
' ppDevice : IDXVAHD_Device** out
Declare PtrSafe Function DXVAHD_CreateDevice Lib "dxva2" ( _
    ByVal pD3DDevice As LongPtr, _
    ByVal pContentDesc As LongPtr, _
    ByVal Usage As Long, _
    ByVal pPlugin As LongPtr, _
    ByVal ppDevice 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

DXVAHD_CreateDevice = ctypes.windll.dxva2.DXVAHD_CreateDevice
DXVAHD_CreateDevice.restype = ctypes.c_int
DXVAHD_CreateDevice.argtypes = [
    ctypes.c_void_p,  # pD3DDevice : IDirect3DDevice9Ex*
    ctypes.c_void_p,  # pContentDesc : DXVAHD_CONTENT_DESC*
    ctypes.c_int,  # Usage : DXVAHD_DEVICE_USAGE
    ctypes.c_void_p,  # pPlugin : PDXVAHDSW_Plugin optional
    ctypes.c_void_p,  # ppDevice : IDXVAHD_Device** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dxva2.dll')
DXVAHD_CreateDevice = Fiddle::Function.new(
  lib['DXVAHD_CreateDevice'],
  [
    Fiddle::TYPE_VOIDP,  # pD3DDevice : IDirect3DDevice9Ex*
    Fiddle::TYPE_VOIDP,  # pContentDesc : DXVAHD_CONTENT_DESC*
    Fiddle::TYPE_INT,  # Usage : DXVAHD_DEVICE_USAGE
    Fiddle::TYPE_VOIDP,  # pPlugin : PDXVAHDSW_Plugin optional
    Fiddle::TYPE_VOIDP,  # ppDevice : IDXVAHD_Device** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "dxva2")]
extern "system" {
    fn DXVAHD_CreateDevice(
        pD3DDevice: *mut core::ffi::c_void,  // IDirect3DDevice9Ex*
        pContentDesc: *const DXVAHD_CONTENT_DESC,  // DXVAHD_CONTENT_DESC*
        Usage: i32,  // DXVAHD_DEVICE_USAGE
        pPlugin: *const core::ffi::c_void,  // PDXVAHDSW_Plugin optional
        ppDevice: *mut *mut core::ffi::c_void  // IDXVAHD_Device** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dxva2.dll")]
public static extern int DXVAHD_CreateDevice(IntPtr pD3DDevice, IntPtr pContentDesc, int Usage, IntPtr pPlugin, IntPtr ppDevice);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dxva2_DXVAHD_CreateDevice' -Namespace Win32 -PassThru
# $api::DXVAHD_CreateDevice(pD3DDevice, pContentDesc, Usage, pPlugin, ppDevice)

#uselib "dxva2.dll"
#func global DXVAHD_CreateDevice "DXVAHD_CreateDevice" sptr, sptr, sptr, sptr, sptr
; DXVAHD_CreateDevice pD3DDevice, varptr(pContentDesc), Usage, pPlugin, ppDevice   ; 戻り値は stat
; pD3DDevice : IDirect3DDevice9Ex* -> "sptr"
; pContentDesc : DXVAHD_CONTENT_DESC* -> "sptr"
; Usage : DXVAHD_DEVICE_USAGE -> "sptr"
; pPlugin : PDXVAHDSW_Plugin optional -> "sptr"
; ppDevice : IDXVAHD_Device** 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 "dxva2.dll"
#cfunc global DXVAHD_CreateDevice "DXVAHD_CreateDevice" sptr, var, int, sptr, sptr
; res = DXVAHD_CreateDevice(pD3DDevice, pContentDesc, Usage, pPlugin, ppDevice)
; pD3DDevice : IDirect3DDevice9Ex* -> "sptr"
; pContentDesc : DXVAHD_CONTENT_DESC* -> "var"
; Usage : DXVAHD_DEVICE_USAGE -> "int"
; pPlugin : PDXVAHDSW_Plugin optional -> "sptr"
; ppDevice : IDXVAHD_Device** 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 DXVAHD_CreateDevice(IDirect3DDevice9Ex* pD3DDevice, DXVAHD_CONTENT_DESC* pContentDesc, DXVAHD_DEVICE_USAGE Usage, PDXVAHDSW_Plugin pPlugin, IDXVAHD_Device** ppDevice)
#uselib "dxva2.dll"
#cfunc global DXVAHD_CreateDevice "DXVAHD_CreateDevice" intptr, var, int, intptr, intptr
; res = DXVAHD_CreateDevice(pD3DDevice, pContentDesc, Usage, pPlugin, ppDevice)
; pD3DDevice : IDirect3DDevice9Ex* -> "intptr"
; pContentDesc : DXVAHD_CONTENT_DESC* -> "var"
; Usage : DXVAHD_DEVICE_USAGE -> "int"
; pPlugin : PDXVAHDSW_Plugin optional -> "intptr"
; ppDevice : IDXVAHD_Device** 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 (
	dxva2 = windows.NewLazySystemDLL("dxva2.dll")
	procDXVAHD_CreateDevice = dxva2.NewProc("DXVAHD_CreateDevice")
)

// pD3DDevice (IDirect3DDevice9Ex*), pContentDesc (DXVAHD_CONTENT_DESC*), Usage (DXVAHD_DEVICE_USAGE), pPlugin (PDXVAHDSW_Plugin optional), ppDevice (IDXVAHD_Device** out)
r1, _, err := procDXVAHD_CreateDevice.Call(
	uintptr(pD3DDevice),
	uintptr(pContentDesc),
	uintptr(Usage),
	uintptr(pPlugin),
	uintptr(ppDevice),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DXVAHD_CreateDevice(
  pD3DDevice: Pointer;   // IDirect3DDevice9Ex*
  pContentDesc: Pointer;   // DXVAHD_CONTENT_DESC*
  Usage: Integer;   // DXVAHD_DEVICE_USAGE
  pPlugin: Pointer;   // PDXVAHDSW_Plugin optional
  ppDevice: Pointer   // IDXVAHD_Device** out
): Integer; stdcall;
  external 'dxva2.dll' name 'DXVAHD_CreateDevice';

result := DllCall("dxva2\DXVAHD_CreateDevice"
    , "Ptr", pD3DDevice   ; IDirect3DDevice9Ex*
    , "Ptr", pContentDesc   ; DXVAHD_CONTENT_DESC*
    , "Int", Usage   ; DXVAHD_DEVICE_USAGE
    , "Ptr", pPlugin   ; PDXVAHDSW_Plugin optional
    , "Ptr", ppDevice   ; IDXVAHD_Device** out
    , "Int")   ; return: HRESULT

●DXVAHD_CreateDevice(pD3DDevice, pContentDesc, Usage, pPlugin, ppDevice) = DLL("dxva2.dll", "int DXVAHD_CreateDevice(void*, void*, int, void*, void*)")
# 呼び出し: DXVAHD_CreateDevice(pD3DDevice, pContentDesc, Usage, pPlugin, ppDevice)
# pD3DDevice : IDirect3DDevice9Ex* -> "void*"
# pContentDesc : DXVAHD_CONTENT_DESC* -> "void*"
# Usage : DXVAHD_DEVICE_USAGE -> "int"
# pPlugin : PDXVAHDSW_Plugin optional -> "void*"
# ppDevice : IDXVAHD_Device** 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)。