OPMGetVideoOutputsFromHMONITOR

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

HRESULT OPMGetVideoOutputsFromHMONITOR(
    HMONITOR hMonitor,
    OPM_VIDEO_OUTPUT_SEMANTICS vos,
    DWORD* pulNumVideoOutputs,
    IOPMVideoOutput*** pppOPMVideoOutputArray
);

<DllImport("dxva2.dll", ExactSpelling:=True)>
Public Shared Function OPMGetVideoOutputsFromHMONITOR(
    hMonitor As IntPtr,   ' HMONITOR
    vos As Integer,   ' OPM_VIDEO_OUTPUT_SEMANTICS
    <Out> ByRef pulNumVideoOutputs As UInteger,   ' DWORD* out
    pppOPMVideoOutputArray As IntPtr   ' IOPMVideoOutput*** out
) As Integer
End Function

' hMonitor : HMONITOR
' vos : OPM_VIDEO_OUTPUT_SEMANTICS
' pulNumVideoOutputs : DWORD* out
' pppOPMVideoOutputArray : IOPMVideoOutput*** out
Declare PtrSafe Function OPMGetVideoOutputsFromHMONITOR Lib "dxva2" ( _
    ByVal hMonitor As LongPtr, _
    ByVal vos As Long, _
    ByRef pulNumVideoOutputs As Long, _
    ByVal pppOPMVideoOutputArray 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

OPMGetVideoOutputsFromHMONITOR = ctypes.windll.dxva2.OPMGetVideoOutputsFromHMONITOR
OPMGetVideoOutputsFromHMONITOR.restype = ctypes.c_int
OPMGetVideoOutputsFromHMONITOR.argtypes = [
    wintypes.HANDLE,  # hMonitor : HMONITOR
    ctypes.c_int,  # vos : OPM_VIDEO_OUTPUT_SEMANTICS
    ctypes.POINTER(wintypes.DWORD),  # pulNumVideoOutputs : DWORD* out
    ctypes.c_void_p,  # pppOPMVideoOutputArray : IOPMVideoOutput*** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dxva2.dll')
OPMGetVideoOutputsFromHMONITOR = Fiddle::Function.new(
  lib['OPMGetVideoOutputsFromHMONITOR'],
  [
    Fiddle::TYPE_VOIDP,  # hMonitor : HMONITOR
    Fiddle::TYPE_INT,  # vos : OPM_VIDEO_OUTPUT_SEMANTICS
    Fiddle::TYPE_VOIDP,  # pulNumVideoOutputs : DWORD* out
    Fiddle::TYPE_VOIDP,  # pppOPMVideoOutputArray : IOPMVideoOutput*** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "dxva2")]
extern "system" {
    fn OPMGetVideoOutputsFromHMONITOR(
        hMonitor: *mut core::ffi::c_void,  // HMONITOR
        vos: i32,  // OPM_VIDEO_OUTPUT_SEMANTICS
        pulNumVideoOutputs: *mut u32,  // DWORD* out
        pppOPMVideoOutputArray: *mut *mut *mut core::ffi::c_void  // IOPMVideoOutput*** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dxva2.dll")]
public static extern int OPMGetVideoOutputsFromHMONITOR(IntPtr hMonitor, int vos, out uint pulNumVideoOutputs, IntPtr pppOPMVideoOutputArray);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dxva2_OPMGetVideoOutputsFromHMONITOR' -Namespace Win32 -PassThru
# $api::OPMGetVideoOutputsFromHMONITOR(hMonitor, vos, pulNumVideoOutputs, pppOPMVideoOutputArray)

#uselib "dxva2.dll"
#func global OPMGetVideoOutputsFromHMONITOR "OPMGetVideoOutputsFromHMONITOR" sptr, sptr, sptr, sptr
; OPMGetVideoOutputsFromHMONITOR hMonitor, vos, varptr(pulNumVideoOutputs), pppOPMVideoOutputArray   ; 戻り値は stat
; hMonitor : HMONITOR -> "sptr"
; vos : OPM_VIDEO_OUTPUT_SEMANTICS -> "sptr"
; pulNumVideoOutputs : DWORD* out -> "sptr"
; pppOPMVideoOutputArray : IOPMVideoOutput*** 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 OPMGetVideoOutputsFromHMONITOR "OPMGetVideoOutputsFromHMONITOR" sptr, int, var, sptr
; res = OPMGetVideoOutputsFromHMONITOR(hMonitor, vos, pulNumVideoOutputs, pppOPMVideoOutputArray)
; hMonitor : HMONITOR -> "sptr"
; vos : OPM_VIDEO_OUTPUT_SEMANTICS -> "int"
; pulNumVideoOutputs : DWORD* out -> "var"
; pppOPMVideoOutputArray : IOPMVideoOutput*** 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 OPMGetVideoOutputsFromHMONITOR(HMONITOR hMonitor, OPM_VIDEO_OUTPUT_SEMANTICS vos, DWORD* pulNumVideoOutputs, IOPMVideoOutput*** pppOPMVideoOutputArray)
#uselib "dxva2.dll"
#cfunc global OPMGetVideoOutputsFromHMONITOR "OPMGetVideoOutputsFromHMONITOR" intptr, int, var, intptr
; res = OPMGetVideoOutputsFromHMONITOR(hMonitor, vos, pulNumVideoOutputs, pppOPMVideoOutputArray)
; hMonitor : HMONITOR -> "intptr"
; vos : OPM_VIDEO_OUTPUT_SEMANTICS -> "int"
; pulNumVideoOutputs : DWORD* out -> "var"
; pppOPMVideoOutputArray : IOPMVideoOutput*** 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")
	procOPMGetVideoOutputsFromHMONITOR = dxva2.NewProc("OPMGetVideoOutputsFromHMONITOR")
)

// hMonitor (HMONITOR), vos (OPM_VIDEO_OUTPUT_SEMANTICS), pulNumVideoOutputs (DWORD* out), pppOPMVideoOutputArray (IOPMVideoOutput*** out)
r1, _, err := procOPMGetVideoOutputsFromHMONITOR.Call(
	uintptr(hMonitor),
	uintptr(vos),
	uintptr(pulNumVideoOutputs),
	uintptr(pppOPMVideoOutputArray),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function OPMGetVideoOutputsFromHMONITOR(
  hMonitor: THandle;   // HMONITOR
  vos: Integer;   // OPM_VIDEO_OUTPUT_SEMANTICS
  pulNumVideoOutputs: Pointer;   // DWORD* out
  pppOPMVideoOutputArray: Pointer   // IOPMVideoOutput*** out
): Integer; stdcall;
  external 'dxva2.dll' name 'OPMGetVideoOutputsFromHMONITOR';

result := DllCall("dxva2\OPMGetVideoOutputsFromHMONITOR"
    , "Ptr", hMonitor   ; HMONITOR
    , "Int", vos   ; OPM_VIDEO_OUTPUT_SEMANTICS
    , "Ptr", pulNumVideoOutputs   ; DWORD* out
    , "Ptr", pppOPMVideoOutputArray   ; IOPMVideoOutput*** out
    , "Int")   ; return: HRESULT

●OPMGetVideoOutputsFromHMONITOR(hMonitor, vos, pulNumVideoOutputs, pppOPMVideoOutputArray) = DLL("dxva2.dll", "int OPMGetVideoOutputsFromHMONITOR(void*, int, void*, void*)")
# 呼び出し: OPMGetVideoOutputsFromHMONITOR(hMonitor, vos, pulNumVideoOutputs, pppOPMVideoOutputArray)
# hMonitor : HMONITOR -> "void*"
# vos : OPM_VIDEO_OUTPUT_SEMANTICS -> "int"
# pulNumVideoOutputs : DWORD* out -> "void*"
# pppOPMVideoOutputArray : IOPMVideoOutput*** 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)。