MFGetDXGIDeviceManageMode

// MFPlat.DLL
#include <windows.h>

HRESULT MFGetDXGIDeviceManageMode(
    IUnknown* pDeviceManager,
    MF_DXGI_DEVICE_MANAGER_MODE* mode
);

<DllImport("MFPlat.DLL", ExactSpelling:=True)>
Public Shared Function MFGetDXGIDeviceManageMode(
    pDeviceManager As IntPtr,   ' IUnknown*
    <Out> ByRef mode As Integer   ' MF_DXGI_DEVICE_MANAGER_MODE* out
) As Integer
End Function

' pDeviceManager : IUnknown*
' mode : MF_DXGI_DEVICE_MANAGER_MODE* out
Declare PtrSafe Function MFGetDXGIDeviceManageMode Lib "mfplat" ( _
    ByVal pDeviceManager As LongPtr, _
    ByRef mode As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

MFGetDXGIDeviceManageMode = ctypes.windll.mfplat.MFGetDXGIDeviceManageMode
MFGetDXGIDeviceManageMode.restype = ctypes.c_int
MFGetDXGIDeviceManageMode.argtypes = [
    ctypes.c_void_p,  # pDeviceManager : IUnknown*
    ctypes.c_void_p,  # mode : MF_DXGI_DEVICE_MANAGER_MODE* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.DLL')
MFGetDXGIDeviceManageMode = Fiddle::Function.new(
  lib['MFGetDXGIDeviceManageMode'],
  [
    Fiddle::TYPE_VOIDP,  # pDeviceManager : IUnknown*
    Fiddle::TYPE_VOIDP,  # mode : MF_DXGI_DEVICE_MANAGER_MODE* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFGetDXGIDeviceManageMode(
        pDeviceManager: *mut core::ffi::c_void,  // IUnknown*
        mode: *mut i32  // MF_DXGI_DEVICE_MANAGER_MODE* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.DLL")]
public static extern int MFGetDXGIDeviceManageMode(IntPtr pDeviceManager, out int mode);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFGetDXGIDeviceManageMode' -Namespace Win32 -PassThru
# $api::MFGetDXGIDeviceManageMode(pDeviceManager, mode)

#uselib "MFPlat.DLL"
#func global MFGetDXGIDeviceManageMode "MFGetDXGIDeviceManageMode" sptr, sptr
; MFGetDXGIDeviceManageMode pDeviceManager, mode   ; 戻り値は stat
; pDeviceManager : IUnknown* -> "sptr"
; mode : MF_DXGI_DEVICE_MANAGER_MODE* 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 "MFPlat.DLL"
#cfunc global MFGetDXGIDeviceManageMode "MFGetDXGIDeviceManageMode" sptr, int
; res = MFGetDXGIDeviceManageMode(pDeviceManager, mode)
; pDeviceManager : IUnknown* -> "sptr"
; mode : MF_DXGI_DEVICE_MANAGER_MODE* out -> "int"

; HRESULT MFGetDXGIDeviceManageMode(IUnknown* pDeviceManager, MF_DXGI_DEVICE_MANAGER_MODE* mode)
#uselib "MFPlat.DLL"
#cfunc global MFGetDXGIDeviceManageMode "MFGetDXGIDeviceManageMode" intptr, int
; res = MFGetDXGIDeviceManageMode(pDeviceManager, mode)
; pDeviceManager : IUnknown* -> "intptr"
; mode : MF_DXGI_DEVICE_MANAGER_MODE* out -> "int"

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	mfplat = windows.NewLazySystemDLL("MFPlat.DLL")
	procMFGetDXGIDeviceManageMode = mfplat.NewProc("MFGetDXGIDeviceManageMode")
)

// pDeviceManager (IUnknown*), mode (MF_DXGI_DEVICE_MANAGER_MODE* out)
r1, _, err := procMFGetDXGIDeviceManageMode.Call(
	uintptr(pDeviceManager),
	uintptr(mode),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFGetDXGIDeviceManageMode(
  pDeviceManager: Pointer;   // IUnknown*
  mode: Pointer   // MF_DXGI_DEVICE_MANAGER_MODE* out
): Integer; stdcall;
  external 'MFPlat.DLL' name 'MFGetDXGIDeviceManageMode';

result := DllCall("MFPlat\MFGetDXGIDeviceManageMode"
    , "Ptr", pDeviceManager   ; IUnknown*
    , "Ptr", mode   ; MF_DXGI_DEVICE_MANAGER_MODE* out
    , "Int")   ; return: HRESULT

●MFGetDXGIDeviceManageMode(pDeviceManager, mode) = DLL("MFPlat.DLL", "int MFGetDXGIDeviceManageMode(void*, void*)")
# 呼び出し: MFGetDXGIDeviceManageMode(pDeviceManager, mode)
# pDeviceManager : IUnknown* -> "void*"
# mode : MF_DXGI_DEVICE_MANAGER_MODE* 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)。