DwmGetTransportAttributes

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

HRESULT DwmGetTransportAttributes(
    BOOL* pfIsRemoting,
    BOOL* pfIsConnected,
    DWORD* pDwGeneration
);

<DllImport("dwmapi.dll", ExactSpelling:=True)>
Public Shared Function DwmGetTransportAttributes(
    <Out> ByRef pfIsRemoting As Boolean,   ' BOOL* out
    <Out> ByRef pfIsConnected As Boolean,   ' BOOL* out
    <Out> ByRef pDwGeneration As UInteger   ' DWORD* out
) As Integer
End Function

' pfIsRemoting : BOOL* out
' pfIsConnected : BOOL* out
' pDwGeneration : DWORD* out
Declare PtrSafe Function DwmGetTransportAttributes Lib "dwmapi" ( _
    ByRef pfIsRemoting As Long, _
    ByRef pfIsConnected As Long, _
    ByRef pDwGeneration 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

DwmGetTransportAttributes = ctypes.windll.dwmapi.DwmGetTransportAttributes
DwmGetTransportAttributes.restype = ctypes.c_int
DwmGetTransportAttributes.argtypes = [
    ctypes.c_void_p,  # pfIsRemoting : BOOL* out
    ctypes.c_void_p,  # pfIsConnected : BOOL* out
    ctypes.POINTER(wintypes.DWORD),  # pDwGeneration : DWORD* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dwmapi.dll')
DwmGetTransportAttributes = Fiddle::Function.new(
  lib['DwmGetTransportAttributes'],
  [
    Fiddle::TYPE_VOIDP,  # pfIsRemoting : BOOL* out
    Fiddle::TYPE_VOIDP,  # pfIsConnected : BOOL* out
    Fiddle::TYPE_VOIDP,  # pDwGeneration : DWORD* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "dwmapi")]
extern "system" {
    fn DwmGetTransportAttributes(
        pfIsRemoting: *mut i32,  // BOOL* out
        pfIsConnected: *mut i32,  // BOOL* out
        pDwGeneration: *mut u32  // DWORD* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dwmapi.dll")]
public static extern int DwmGetTransportAttributes(out bool pfIsRemoting, out bool pfIsConnected, out uint pDwGeneration);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dwmapi_DwmGetTransportAttributes' -Namespace Win32 -PassThru
# $api::DwmGetTransportAttributes(pfIsRemoting, pfIsConnected, pDwGeneration)

#uselib "dwmapi.dll"
#func global DwmGetTransportAttributes "DwmGetTransportAttributes" sptr, sptr, sptr
; DwmGetTransportAttributes varptr(pfIsRemoting), varptr(pfIsConnected), varptr(pDwGeneration)   ; 戻り値は stat
; pfIsRemoting : BOOL* out -> "sptr"
; pfIsConnected : BOOL* out -> "sptr"
; pDwGeneration : DWORD* 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。

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

var (
	dwmapi = windows.NewLazySystemDLL("dwmapi.dll")
	procDwmGetTransportAttributes = dwmapi.NewProc("DwmGetTransportAttributes")
)

// pfIsRemoting (BOOL* out), pfIsConnected (BOOL* out), pDwGeneration (DWORD* out)
r1, _, err := procDwmGetTransportAttributes.Call(
	uintptr(pfIsRemoting),
	uintptr(pfIsConnected),
	uintptr(pDwGeneration),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DwmGetTransportAttributes(
  pfIsRemoting: Pointer;   // BOOL* out
  pfIsConnected: Pointer;   // BOOL* out
  pDwGeneration: Pointer   // DWORD* out
): Integer; stdcall;
  external 'dwmapi.dll' name 'DwmGetTransportAttributes';

result := DllCall("dwmapi\DwmGetTransportAttributes"
    , "Ptr", pfIsRemoting   ; BOOL* out
    , "Ptr", pfIsConnected   ; BOOL* out
    , "Ptr", pDwGeneration   ; DWORD* out
    , "Int")   ; return: HRESULT

●DwmGetTransportAttributes(pfIsRemoting, pfIsConnected, pDwGeneration) = DLL("dwmapi.dll", "int DwmGetTransportAttributes(void*, void*, void*)")
# 呼び出し: DwmGetTransportAttributes(pfIsRemoting, pfIsConnected, pDwGeneration)
# pfIsRemoting : BOOL* out -> "void*"
# pfIsConnected : BOOL* out -> "void*"
# pDwGeneration : DWORD* 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)。

const std = @import("std");

extern "dwmapi" fn DwmGetTransportAttributes(
    pfIsRemoting: [*c]i32, // BOOL* out
    pfIsConnected: [*c]i32, // BOOL* out
    pDwGeneration: [*c]u32 // DWORD* out
) callconv(std.os.windows.WINAPI) i32;

proc DwmGetTransportAttributes(
    pfIsRemoting: ptr int32,  # BOOL* out
    pfIsConnected: ptr int32,  # BOOL* out
    pDwGeneration: ptr uint32  # DWORD* out
): int32 {.importc: "DwmGetTransportAttributes", stdcall, dynlib: "dwmapi.dll".}

pragma(lib, "dwmapi");
extern(Windows)
int DwmGetTransportAttributes(
    int* pfIsRemoting,   // BOOL* out
    int* pfIsConnected,   // BOOL* out
    uint* pDwGeneration   // DWORD* out
);

ccall((:DwmGetTransportAttributes, "dwmapi.dll"), stdcall, Int32,
      (Ptr{Int32}, Ptr{Int32}, Ptr{UInt32}),
      pfIsRemoting, pfIsConnected, pDwGeneration)
# pfIsRemoting : BOOL* out -> Ptr{Int32}
# pfIsConnected : BOOL* out -> Ptr{Int32}
# pDwGeneration : DWORD* out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t DwmGetTransportAttributes(
    int32_t* pfIsRemoting,
    int32_t* pfIsConnected,
    uint32_t* pDwGeneration);
]]
local dwmapi = ffi.load("dwmapi")
-- dwmapi.DwmGetTransportAttributes(pfIsRemoting, pfIsConnected, pDwGeneration)
-- pfIsRemoting : BOOL* out
-- pfIsConnected : BOOL* out
-- pDwGeneration : DWORD* out
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('dwmapi.dll');
const DwmGetTransportAttributes = lib.func('__stdcall', 'DwmGetTransportAttributes', 'int32_t', ['int32_t *', 'int32_t *', 'uint32_t *']);
// DwmGetTransportAttributes(pfIsRemoting, pfIsConnected, pDwGeneration)
// pfIsRemoting : BOOL* out -> 'int32_t *'
// pfIsConnected : BOOL* out -> 'int32_t *'
// pDwGeneration : DWORD* out -> 'uint32_t *'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("dwmapi.dll", {
  DwmGetTransportAttributes: { parameters: ["pointer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.DwmGetTransportAttributes(pfIsRemoting, pfIsConnected, pDwGeneration)
// pfIsRemoting : BOOL* out -> "pointer"
// pfIsConnected : BOOL* out -> "pointer"
// pDwGeneration : DWORD* out -> "pointer"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t DwmGetTransportAttributes(
    int32_t* pfIsRemoting,
    int32_t* pfIsConnected,
    uint32_t* pDwGeneration);
C, "dwmapi.dll");
// $ffi->DwmGetTransportAttributes(pfIsRemoting, pfIsConnected, pDwGeneration);
// pfIsRemoting : BOOL* out
// pfIsConnected : BOOL* out
// pDwGeneration : DWORD* out
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Dwmapi extends StdCallLibrary {
    Dwmapi INSTANCE = Native.load("dwmapi", Dwmapi.class);
    int DwmGetTransportAttributes(
        IntByReference pfIsRemoting,   // BOOL* out
        IntByReference pfIsConnected,   // BOOL* out
        IntByReference pDwGeneration   // DWORD* out
    );
}

@[Link("dwmapi")]
lib Libdwmapi
  fun DwmGetTransportAttributes = DwmGetTransportAttributes(
    pfIsRemoting : Int32*,   # BOOL* out
    pfIsConnected : Int32*,   # BOOL* out
    pDwGeneration : UInt32*   # DWORD* out
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef DwmGetTransportAttributesNative = Int32 Function(Pointer<Int32>, Pointer<Int32>, Pointer<Uint32>);
typedef DwmGetTransportAttributesDart = int Function(Pointer<Int32>, Pointer<Int32>, Pointer<Uint32>);
final DwmGetTransportAttributes = DynamicLibrary.open('dwmapi.dll')
    .lookupFunction<DwmGetTransportAttributesNative, DwmGetTransportAttributesDart>('DwmGetTransportAttributes');
// pfIsRemoting : BOOL* out -> Pointer<Int32>
// pfIsConnected : BOOL* out -> Pointer<Int32>
// pDwGeneration : DWORD* out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function DwmGetTransportAttributes(
  pfIsRemoting: Pointer;   // BOOL* out
  pfIsConnected: Pointer;   // BOOL* out
  pDwGeneration: Pointer   // DWORD* out
): Integer; stdcall;
  external 'dwmapi.dll' name 'DwmGetTransportAttributes';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "DwmGetTransportAttributes"
  c_DwmGetTransportAttributes :: Ptr CInt -> Ptr CInt -> Ptr Word32 -> IO Int32
-- pfIsRemoting : BOOL* out -> Ptr CInt
-- pfIsConnected : BOOL* out -> Ptr CInt
-- pDwGeneration : DWORD* out -> Ptr Word32
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let dwmgettransportattributes =
  foreign "DwmGetTransportAttributes"
    ((ptr int32_t) @-> (ptr int32_t) @-> (ptr uint32_t) @-> returning int32_t)
(* pfIsRemoting : BOOL* out -> (ptr int32_t) *)
(* pfIsConnected : BOOL* out -> (ptr int32_t) *)
(* pDwGeneration : DWORD* out -> (ptr uint32_t) *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library dwmapi (t "dwmapi.dll"))
(cffi:use-foreign-library dwmapi)

(cffi:defcfun ("DwmGetTransportAttributes" dwm-get-transport-attributes :convention :stdcall) :int32
  (pf-is-remoting :pointer)   ; BOOL* out
  (pf-is-connected :pointer)   ; BOOL* out
  (p-dw-generation :pointer))   ; DWORD* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $DwmGetTransportAttributes = Win32::API::More->new('dwmapi',
    'int DwmGetTransportAttributes(LPVOID pfIsRemoting, LPVOID pfIsConnected, LPVOID pDwGeneration)');
# my $ret = $DwmGetTransportAttributes->Call($pfIsRemoting, $pfIsConnected, $pDwGeneration);
# pfIsRemoting : BOOL* out -> LPVOID
# pfIsConnected : BOOL* out -> LPVOID
# pDwGeneration : DWORD* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。