GetPhysicalMonitorsFromHMONITOR

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

BOOL GetPhysicalMonitorsFromHMONITOR(
    HMONITOR hMonitor,
    DWORD dwPhysicalMonitorArraySize,
    PHYSICAL_MONITOR* pPhysicalMonitorArray
);

<DllImport("dxva2.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function GetPhysicalMonitorsFromHMONITOR(
    hMonitor As IntPtr,   ' HMONITOR
    dwPhysicalMonitorArraySize As UInteger,   ' DWORD
    pPhysicalMonitorArray As IntPtr   ' PHYSICAL_MONITOR* out
) As Boolean
End Function

' hMonitor : HMONITOR
' dwPhysicalMonitorArraySize : DWORD
' pPhysicalMonitorArray : PHYSICAL_MONITOR* out
Declare PtrSafe Function GetPhysicalMonitorsFromHMONITOR Lib "dxva2" ( _
    ByVal hMonitor As LongPtr, _
    ByVal dwPhysicalMonitorArraySize As Long, _
    ByVal pPhysicalMonitorArray 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

GetPhysicalMonitorsFromHMONITOR = ctypes.windll.dxva2.GetPhysicalMonitorsFromHMONITOR
GetPhysicalMonitorsFromHMONITOR.restype = wintypes.BOOL
GetPhysicalMonitorsFromHMONITOR.argtypes = [
    wintypes.HANDLE,  # hMonitor : HMONITOR
    wintypes.DWORD,  # dwPhysicalMonitorArraySize : DWORD
    ctypes.c_void_p,  # pPhysicalMonitorArray : PHYSICAL_MONITOR* out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dxva2.dll')
GetPhysicalMonitorsFromHMONITOR = Fiddle::Function.new(
  lib['GetPhysicalMonitorsFromHMONITOR'],
  [
    Fiddle::TYPE_VOIDP,  # hMonitor : HMONITOR
    -Fiddle::TYPE_INT,  # dwPhysicalMonitorArraySize : DWORD
    Fiddle::TYPE_VOIDP,  # pPhysicalMonitorArray : PHYSICAL_MONITOR* out
  ],
  Fiddle::TYPE_INT)

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

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("dxva2.dll", SetLastError = true)]
public static extern bool GetPhysicalMonitorsFromHMONITOR(IntPtr hMonitor, uint dwPhysicalMonitorArraySize, IntPtr pPhysicalMonitorArray);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dxva2_GetPhysicalMonitorsFromHMONITOR' -Namespace Win32 -PassThru
# $api::GetPhysicalMonitorsFromHMONITOR(hMonitor, dwPhysicalMonitorArraySize, pPhysicalMonitorArray)

#uselib "dxva2.dll"
#func global GetPhysicalMonitorsFromHMONITOR "GetPhysicalMonitorsFromHMONITOR" sptr, sptr, sptr
; GetPhysicalMonitorsFromHMONITOR hMonitor, dwPhysicalMonitorArraySize, varptr(pPhysicalMonitorArray)   ; 戻り値は stat
; hMonitor : HMONITOR -> "sptr"
; dwPhysicalMonitorArraySize : DWORD -> "sptr"
; pPhysicalMonitorArray : PHYSICAL_MONITOR* 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 GetPhysicalMonitorsFromHMONITOR "GetPhysicalMonitorsFromHMONITOR" sptr, int, var
; res = GetPhysicalMonitorsFromHMONITOR(hMonitor, dwPhysicalMonitorArraySize, pPhysicalMonitorArray)
; hMonitor : HMONITOR -> "sptr"
; dwPhysicalMonitorArraySize : DWORD -> "int"
; pPhysicalMonitorArray : PHYSICAL_MONITOR* out -> "var"
; ※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。

; BOOL GetPhysicalMonitorsFromHMONITOR(HMONITOR hMonitor, DWORD dwPhysicalMonitorArraySize, PHYSICAL_MONITOR* pPhysicalMonitorArray)
#uselib "dxva2.dll"
#cfunc global GetPhysicalMonitorsFromHMONITOR "GetPhysicalMonitorsFromHMONITOR" intptr, int, var
; res = GetPhysicalMonitorsFromHMONITOR(hMonitor, dwPhysicalMonitorArraySize, pPhysicalMonitorArray)
; hMonitor : HMONITOR -> "intptr"
; dwPhysicalMonitorArraySize : DWORD -> "int"
; pPhysicalMonitorArray : PHYSICAL_MONITOR* out -> "var"
; ※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")
	procGetPhysicalMonitorsFromHMONITOR = dxva2.NewProc("GetPhysicalMonitorsFromHMONITOR")
)

// hMonitor (HMONITOR), dwPhysicalMonitorArraySize (DWORD), pPhysicalMonitorArray (PHYSICAL_MONITOR* out)
r1, _, err := procGetPhysicalMonitorsFromHMONITOR.Call(
	uintptr(hMonitor),
	uintptr(dwPhysicalMonitorArraySize),
	uintptr(pPhysicalMonitorArray),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function GetPhysicalMonitorsFromHMONITOR(
  hMonitor: THandle;   // HMONITOR
  dwPhysicalMonitorArraySize: DWORD;   // DWORD
  pPhysicalMonitorArray: Pointer   // PHYSICAL_MONITOR* out
): BOOL; stdcall;
  external 'dxva2.dll' name 'GetPhysicalMonitorsFromHMONITOR';

result := DllCall("dxva2\GetPhysicalMonitorsFromHMONITOR"
    , "Ptr", hMonitor   ; HMONITOR
    , "UInt", dwPhysicalMonitorArraySize   ; DWORD
    , "Ptr", pPhysicalMonitorArray   ; PHYSICAL_MONITOR* out
    , "Int")   ; return: BOOL

●GetPhysicalMonitorsFromHMONITOR(hMonitor, dwPhysicalMonitorArraySize, pPhysicalMonitorArray) = DLL("dxva2.dll", "bool GetPhysicalMonitorsFromHMONITOR(void*, dword, void*)")
# 呼び出し: GetPhysicalMonitorsFromHMONITOR(hMonitor, dwPhysicalMonitorArraySize, pPhysicalMonitorArray)
# hMonitor : HMONITOR -> "void*"
# dwPhysicalMonitorArraySize : DWORD -> "dword"
# pPhysicalMonitorArray : PHYSICAL_MONITOR* 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)。