MFCreateDXGICrossAdapterBuffer

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

HRESULT MFCreateDXGICrossAdapterBuffer(
    const GUID* riid,
    IUnknown* punkDevice,
    IMFMediaType* pMediaType,
    DWORD uSubresource,
    IMFMediaBuffer** ppBuffer
);

<DllImport("MFPlat.DLL", ExactSpelling:=True)>
Public Shared Function MFCreateDXGICrossAdapterBuffer(
    ByRef riid As Guid,   ' GUID*
    punkDevice As IntPtr,   ' IUnknown*
    pMediaType As IntPtr,   ' IMFMediaType*
    uSubresource As UInteger,   ' DWORD
    ppBuffer As IntPtr   ' IMFMediaBuffer** out
) As Integer
End Function

' riid : GUID*
' punkDevice : IUnknown*
' pMediaType : IMFMediaType*
' uSubresource : DWORD
' ppBuffer : IMFMediaBuffer** out
Declare PtrSafe Function MFCreateDXGICrossAdapterBuffer Lib "mfplat" ( _
    ByVal riid As LongPtr, _
    ByVal punkDevice As LongPtr, _
    ByVal pMediaType As LongPtr, _
    ByVal uSubresource As Long, _
    ByVal ppBuffer 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

MFCreateDXGICrossAdapterBuffer = ctypes.windll.mfplat.MFCreateDXGICrossAdapterBuffer
MFCreateDXGICrossAdapterBuffer.restype = ctypes.c_int
MFCreateDXGICrossAdapterBuffer.argtypes = [
    ctypes.c_void_p,  # riid : GUID*
    ctypes.c_void_p,  # punkDevice : IUnknown*
    ctypes.c_void_p,  # pMediaType : IMFMediaType*
    wintypes.DWORD,  # uSubresource : DWORD
    ctypes.c_void_p,  # ppBuffer : IMFMediaBuffer** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.DLL')
MFCreateDXGICrossAdapterBuffer = Fiddle::Function.new(
  lib['MFCreateDXGICrossAdapterBuffer'],
  [
    Fiddle::TYPE_VOIDP,  # riid : GUID*
    Fiddle::TYPE_VOIDP,  # punkDevice : IUnknown*
    Fiddle::TYPE_VOIDP,  # pMediaType : IMFMediaType*
    -Fiddle::TYPE_INT,  # uSubresource : DWORD
    Fiddle::TYPE_VOIDP,  # ppBuffer : IMFMediaBuffer** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFCreateDXGICrossAdapterBuffer(
        riid: *const GUID,  // GUID*
        punkDevice: *mut core::ffi::c_void,  // IUnknown*
        pMediaType: *mut core::ffi::c_void,  // IMFMediaType*
        uSubresource: u32,  // DWORD
        ppBuffer: *mut *mut core::ffi::c_void  // IMFMediaBuffer** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.DLL")]
public static extern int MFCreateDXGICrossAdapterBuffer(ref Guid riid, IntPtr punkDevice, IntPtr pMediaType, uint uSubresource, IntPtr ppBuffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFCreateDXGICrossAdapterBuffer' -Namespace Win32 -PassThru
# $api::MFCreateDXGICrossAdapterBuffer(riid, punkDevice, pMediaType, uSubresource, ppBuffer)

#uselib "MFPlat.DLL"
#func global MFCreateDXGICrossAdapterBuffer "MFCreateDXGICrossAdapterBuffer" sptr, sptr, sptr, sptr, sptr
; MFCreateDXGICrossAdapterBuffer varptr(riid), punkDevice, pMediaType, uSubresource, ppBuffer   ; 戻り値は stat
; riid : GUID* -> "sptr"
; punkDevice : IUnknown* -> "sptr"
; pMediaType : IMFMediaType* -> "sptr"
; uSubresource : DWORD -> "sptr"
; ppBuffer : IMFMediaBuffer** 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 MFCreateDXGICrossAdapterBuffer "MFCreateDXGICrossAdapterBuffer" var, sptr, sptr, int, sptr
; res = MFCreateDXGICrossAdapterBuffer(riid, punkDevice, pMediaType, uSubresource, ppBuffer)
; riid : GUID* -> "var"
; punkDevice : IUnknown* -> "sptr"
; pMediaType : IMFMediaType* -> "sptr"
; uSubresource : DWORD -> "int"
; ppBuffer : IMFMediaBuffer** 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 MFCreateDXGICrossAdapterBuffer(GUID* riid, IUnknown* punkDevice, IMFMediaType* pMediaType, DWORD uSubresource, IMFMediaBuffer** ppBuffer)
#uselib "MFPlat.DLL"
#cfunc global MFCreateDXGICrossAdapterBuffer "MFCreateDXGICrossAdapterBuffer" var, intptr, intptr, int, intptr
; res = MFCreateDXGICrossAdapterBuffer(riid, punkDevice, pMediaType, uSubresource, ppBuffer)
; riid : GUID* -> "var"
; punkDevice : IUnknown* -> "intptr"
; pMediaType : IMFMediaType* -> "intptr"
; uSubresource : DWORD -> "int"
; ppBuffer : IMFMediaBuffer** 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 (
	mfplat = windows.NewLazySystemDLL("MFPlat.DLL")
	procMFCreateDXGICrossAdapterBuffer = mfplat.NewProc("MFCreateDXGICrossAdapterBuffer")
)

// riid (GUID*), punkDevice (IUnknown*), pMediaType (IMFMediaType*), uSubresource (DWORD), ppBuffer (IMFMediaBuffer** out)
r1, _, err := procMFCreateDXGICrossAdapterBuffer.Call(
	uintptr(riid),
	uintptr(punkDevice),
	uintptr(pMediaType),
	uintptr(uSubresource),
	uintptr(ppBuffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFCreateDXGICrossAdapterBuffer(
  riid: PGUID;   // GUID*
  punkDevice: Pointer;   // IUnknown*
  pMediaType: Pointer;   // IMFMediaType*
  uSubresource: DWORD;   // DWORD
  ppBuffer: Pointer   // IMFMediaBuffer** out
): Integer; stdcall;
  external 'MFPlat.DLL' name 'MFCreateDXGICrossAdapterBuffer';

result := DllCall("MFPlat\MFCreateDXGICrossAdapterBuffer"
    , "Ptr", riid   ; GUID*
    , "Ptr", punkDevice   ; IUnknown*
    , "Ptr", pMediaType   ; IMFMediaType*
    , "UInt", uSubresource   ; DWORD
    , "Ptr", ppBuffer   ; IMFMediaBuffer** out
    , "Int")   ; return: HRESULT

●MFCreateDXGICrossAdapterBuffer(riid, punkDevice, pMediaType, uSubresource, ppBuffer) = DLL("MFPlat.DLL", "int MFCreateDXGICrossAdapterBuffer(void*, void*, void*, dword, void*)")
# 呼び出し: MFCreateDXGICrossAdapterBuffer(riid, punkDevice, pMediaType, uSubresource, ppBuffer)
# riid : GUID* -> "void*"
# punkDevice : IUnknown* -> "void*"
# pMediaType : IMFMediaType* -> "void*"
# uSubresource : DWORD -> "dword"
# ppBuffer : IMFMediaBuffer** 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)。