BluetoothGATTGetDescriptors

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

HRESULT BluetoothGATTGetDescriptors(
    HANDLE hDevice,
    BTH_LE_GATT_CHARACTERISTIC* Characteristic,
    WORD DescriptorsBufferCount,
    BTH_LE_GATT_DESCRIPTOR* DescriptorsBuffer,   // optional
    WORD* DescriptorsBufferActual,
    DWORD Flags
);

<DllImport("BluetoothApis.dll", ExactSpelling:=True)>
Public Shared Function BluetoothGATTGetDescriptors(
    hDevice As IntPtr,   ' HANDLE
    Characteristic As IntPtr,   ' BTH_LE_GATT_CHARACTERISTIC*
    DescriptorsBufferCount As UShort,   ' WORD
    DescriptorsBuffer As IntPtr,   ' BTH_LE_GATT_DESCRIPTOR* optional, out
    <Out> ByRef DescriptorsBufferActual As UShort,   ' WORD* out
    Flags As UInteger   ' DWORD
) As Integer
End Function

' hDevice : HANDLE
' Characteristic : BTH_LE_GATT_CHARACTERISTIC*
' DescriptorsBufferCount : WORD
' DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR* optional, out
' DescriptorsBufferActual : WORD* out
' Flags : DWORD
Declare PtrSafe Function BluetoothGATTGetDescriptors Lib "bluetoothapis" ( _
    ByVal hDevice As LongPtr, _
    ByVal Characteristic As LongPtr, _
    ByVal DescriptorsBufferCount As Integer, _
    ByVal DescriptorsBuffer As LongPtr, _
    ByRef DescriptorsBufferActual As Integer, _
    ByVal Flags 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

BluetoothGATTGetDescriptors = ctypes.windll.bluetoothapis.BluetoothGATTGetDescriptors
BluetoothGATTGetDescriptors.restype = ctypes.c_int
BluetoothGATTGetDescriptors.argtypes = [
    wintypes.HANDLE,  # hDevice : HANDLE
    ctypes.c_void_p,  # Characteristic : BTH_LE_GATT_CHARACTERISTIC*
    ctypes.c_ushort,  # DescriptorsBufferCount : WORD
    ctypes.c_void_p,  # DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR* optional, out
    ctypes.POINTER(ctypes.c_ushort),  # DescriptorsBufferActual : WORD* out
    wintypes.DWORD,  # Flags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('BluetoothApis.dll')
BluetoothGATTGetDescriptors = Fiddle::Function.new(
  lib['BluetoothGATTGetDescriptors'],
  [
    Fiddle::TYPE_VOIDP,  # hDevice : HANDLE
    Fiddle::TYPE_VOIDP,  # Characteristic : BTH_LE_GATT_CHARACTERISTIC*
    -Fiddle::TYPE_SHORT,  # DescriptorsBufferCount : WORD
    Fiddle::TYPE_VOIDP,  # DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR* optional, out
    Fiddle::TYPE_VOIDP,  # DescriptorsBufferActual : WORD* out
    -Fiddle::TYPE_INT,  # Flags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "bluetoothapis")]
extern "system" {
    fn BluetoothGATTGetDescriptors(
        hDevice: *mut core::ffi::c_void,  // HANDLE
        Characteristic: *mut BTH_LE_GATT_CHARACTERISTIC,  // BTH_LE_GATT_CHARACTERISTIC*
        DescriptorsBufferCount: u16,  // WORD
        DescriptorsBuffer: *mut BTH_LE_GATT_DESCRIPTOR,  // BTH_LE_GATT_DESCRIPTOR* optional, out
        DescriptorsBufferActual: *mut u16,  // WORD* out
        Flags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("BluetoothApis.dll")]
public static extern int BluetoothGATTGetDescriptors(IntPtr hDevice, IntPtr Characteristic, ushort DescriptorsBufferCount, IntPtr DescriptorsBuffer, out ushort DescriptorsBufferActual, uint Flags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'BluetoothApis_BluetoothGATTGetDescriptors' -Namespace Win32 -PassThru
# $api::BluetoothGATTGetDescriptors(hDevice, Characteristic, DescriptorsBufferCount, DescriptorsBuffer, DescriptorsBufferActual, Flags)

#uselib "BluetoothApis.dll"
#func global BluetoothGATTGetDescriptors "BluetoothGATTGetDescriptors" sptr, sptr, sptr, sptr, sptr, sptr
; BluetoothGATTGetDescriptors hDevice, varptr(Characteristic), DescriptorsBufferCount, varptr(DescriptorsBuffer), varptr(DescriptorsBufferActual), Flags   ; 戻り値は stat
; hDevice : HANDLE -> "sptr"
; Characteristic : BTH_LE_GATT_CHARACTERISTIC* -> "sptr"
; DescriptorsBufferCount : WORD -> "sptr"
; DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR* optional, out -> "sptr"
; DescriptorsBufferActual : WORD* out -> "sptr"
; Flags : DWORD -> "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 (
	bluetoothapis = windows.NewLazySystemDLL("BluetoothApis.dll")
	procBluetoothGATTGetDescriptors = bluetoothapis.NewProc("BluetoothGATTGetDescriptors")
)

// hDevice (HANDLE), Characteristic (BTH_LE_GATT_CHARACTERISTIC*), DescriptorsBufferCount (WORD), DescriptorsBuffer (BTH_LE_GATT_DESCRIPTOR* optional, out), DescriptorsBufferActual (WORD* out), Flags (DWORD)
r1, _, err := procBluetoothGATTGetDescriptors.Call(
	uintptr(hDevice),
	uintptr(Characteristic),
	uintptr(DescriptorsBufferCount),
	uintptr(DescriptorsBuffer),
	uintptr(DescriptorsBufferActual),
	uintptr(Flags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function BluetoothGATTGetDescriptors(
  hDevice: THandle;   // HANDLE
  Characteristic: Pointer;   // BTH_LE_GATT_CHARACTERISTIC*
  DescriptorsBufferCount: Word;   // WORD
  DescriptorsBuffer: Pointer;   // BTH_LE_GATT_DESCRIPTOR* optional, out
  DescriptorsBufferActual: Pointer;   // WORD* out
  Flags: DWORD   // DWORD
): Integer; stdcall;
  external 'BluetoothApis.dll' name 'BluetoothGATTGetDescriptors';

result := DllCall("BluetoothApis\BluetoothGATTGetDescriptors"
    , "Ptr", hDevice   ; HANDLE
    , "Ptr", Characteristic   ; BTH_LE_GATT_CHARACTERISTIC*
    , "UShort", DescriptorsBufferCount   ; WORD
    , "Ptr", DescriptorsBuffer   ; BTH_LE_GATT_DESCRIPTOR* optional, out
    , "Ptr", DescriptorsBufferActual   ; WORD* out
    , "UInt", Flags   ; DWORD
    , "Int")   ; return: HRESULT

●BluetoothGATTGetDescriptors(hDevice, Characteristic, DescriptorsBufferCount, DescriptorsBuffer, DescriptorsBufferActual, Flags) = DLL("BluetoothApis.dll", "int BluetoothGATTGetDescriptors(void*, void*, int, void*, void*, dword)")
# 呼び出し: BluetoothGATTGetDescriptors(hDevice, Characteristic, DescriptorsBufferCount, DescriptorsBuffer, DescriptorsBufferActual, Flags)
# hDevice : HANDLE -> "void*"
# Characteristic : BTH_LE_GATT_CHARACTERISTIC* -> "void*"
# DescriptorsBufferCount : WORD -> "int"
# DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR* optional, out -> "void*"
# DescriptorsBufferActual : WORD* out -> "void*"
# Flags : DWORD -> "dword"
# 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 "bluetoothapis" fn BluetoothGATTGetDescriptors(
    hDevice: ?*anyopaque, // HANDLE
    Characteristic: [*c]BTH_LE_GATT_CHARACTERISTIC, // BTH_LE_GATT_CHARACTERISTIC*
    DescriptorsBufferCount: u16, // WORD
    DescriptorsBuffer: [*c]BTH_LE_GATT_DESCRIPTOR, // BTH_LE_GATT_DESCRIPTOR* optional, out
    DescriptorsBufferActual: [*c]u16, // WORD* out
    Flags: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc BluetoothGATTGetDescriptors(
    hDevice: pointer,  # HANDLE
    Characteristic: ptr BTH_LE_GATT_CHARACTERISTIC,  # BTH_LE_GATT_CHARACTERISTIC*
    DescriptorsBufferCount: uint16,  # WORD
    DescriptorsBuffer: ptr BTH_LE_GATT_DESCRIPTOR,  # BTH_LE_GATT_DESCRIPTOR* optional, out
    DescriptorsBufferActual: ptr uint16,  # WORD* out
    Flags: uint32  # DWORD
): int32 {.importc: "BluetoothGATTGetDescriptors", stdcall, dynlib: "BluetoothApis.dll".}

pragma(lib, "bluetoothapis");
extern(Windows)
int BluetoothGATTGetDescriptors(
    void* hDevice,   // HANDLE
    BTH_LE_GATT_CHARACTERISTIC* Characteristic,   // BTH_LE_GATT_CHARACTERISTIC*
    ushort DescriptorsBufferCount,   // WORD
    BTH_LE_GATT_DESCRIPTOR* DescriptorsBuffer,   // BTH_LE_GATT_DESCRIPTOR* optional, out
    ushort* DescriptorsBufferActual,   // WORD* out
    uint Flags   // DWORD
);

ccall((:BluetoothGATTGetDescriptors, "BluetoothApis.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Ptr{BTH_LE_GATT_CHARACTERISTIC}, UInt16, Ptr{BTH_LE_GATT_DESCRIPTOR}, Ptr{UInt16}, UInt32),
      hDevice, Characteristic, DescriptorsBufferCount, DescriptorsBuffer, DescriptorsBufferActual, Flags)
# hDevice : HANDLE -> Ptr{Cvoid}
# Characteristic : BTH_LE_GATT_CHARACTERISTIC* -> Ptr{BTH_LE_GATT_CHARACTERISTIC}
# DescriptorsBufferCount : WORD -> UInt16
# DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR* optional, out -> Ptr{BTH_LE_GATT_DESCRIPTOR}
# DescriptorsBufferActual : WORD* out -> Ptr{UInt16}
# Flags : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t BluetoothGATTGetDescriptors(
    void* hDevice,
    void* Characteristic,
    uint16_t DescriptorsBufferCount,
    void* DescriptorsBuffer,
    uint16_t* DescriptorsBufferActual,
    uint32_t Flags);
]]
local bluetoothapis = ffi.load("bluetoothapis")
-- bluetoothapis.BluetoothGATTGetDescriptors(hDevice, Characteristic, DescriptorsBufferCount, DescriptorsBuffer, DescriptorsBufferActual, Flags)
-- hDevice : HANDLE
-- Characteristic : BTH_LE_GATT_CHARACTERISTIC*
-- DescriptorsBufferCount : WORD
-- DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR* optional, out
-- DescriptorsBufferActual : WORD* out
-- Flags : DWORD
-- 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('BluetoothApis.dll');
const BluetoothGATTGetDescriptors = lib.func('__stdcall', 'BluetoothGATTGetDescriptors', 'int32_t', ['void *', 'void *', 'uint16_t', 'void *', 'uint16_t *', 'uint32_t']);
// BluetoothGATTGetDescriptors(hDevice, Characteristic, DescriptorsBufferCount, DescriptorsBuffer, DescriptorsBufferActual, Flags)
// hDevice : HANDLE -> 'void *'
// Characteristic : BTH_LE_GATT_CHARACTERISTIC* -> 'void *'
// DescriptorsBufferCount : WORD -> 'uint16_t'
// DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR* optional, out -> 'void *'
// DescriptorsBufferActual : WORD* out -> 'uint16_t *'
// Flags : DWORD -> '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("BluetoothApis.dll", {
  BluetoothGATTGetDescriptors: { parameters: ["pointer", "pointer", "u16", "pointer", "pointer", "u32"], result: "i32" },
});
// lib.symbols.BluetoothGATTGetDescriptors(hDevice, Characteristic, DescriptorsBufferCount, DescriptorsBuffer, DescriptorsBufferActual, Flags)
// hDevice : HANDLE -> "pointer"
// Characteristic : BTH_LE_GATT_CHARACTERISTIC* -> "pointer"
// DescriptorsBufferCount : WORD -> "u16"
// DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR* optional, out -> "pointer"
// DescriptorsBufferActual : WORD* out -> "pointer"
// Flags : DWORD -> "u32"
// 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 BluetoothGATTGetDescriptors(
    void* hDevice,
    void* Characteristic,
    uint16_t DescriptorsBufferCount,
    void* DescriptorsBuffer,
    uint16_t* DescriptorsBufferActual,
    uint32_t Flags);
C, "BluetoothApis.dll");
// $ffi->BluetoothGATTGetDescriptors(hDevice, Characteristic, DescriptorsBufferCount, DescriptorsBuffer, DescriptorsBufferActual, Flags);
// hDevice : HANDLE
// Characteristic : BTH_LE_GATT_CHARACTERISTIC*
// DescriptorsBufferCount : WORD
// DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR* optional, out
// DescriptorsBufferActual : WORD* out
// Flags : DWORD
// 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 Bluetoothapis extends StdCallLibrary {
    Bluetoothapis INSTANCE = Native.load("bluetoothapis", Bluetoothapis.class);
    int BluetoothGATTGetDescriptors(
        Pointer hDevice,   // HANDLE
        Pointer Characteristic,   // BTH_LE_GATT_CHARACTERISTIC*
        short DescriptorsBufferCount,   // WORD
        Pointer DescriptorsBuffer,   // BTH_LE_GATT_DESCRIPTOR* optional, out
        ShortByReference DescriptorsBufferActual,   // WORD* out
        int Flags   // DWORD
    );
}

@[Link("bluetoothapis")]
lib LibBluetoothApis
  fun BluetoothGATTGetDescriptors = BluetoothGATTGetDescriptors(
    hDevice : Void*,   # HANDLE
    Characteristic : BTH_LE_GATT_CHARACTERISTIC*,   # BTH_LE_GATT_CHARACTERISTIC*
    DescriptorsBufferCount : UInt16,   # WORD
    DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR*,   # BTH_LE_GATT_DESCRIPTOR* optional, out
    DescriptorsBufferActual : UInt16*,   # WORD* out
    Flags : UInt32   # DWORD
  ) : 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 BluetoothGATTGetDescriptorsNative = Int32 Function(Pointer<Void>, Pointer<Void>, Uint16, Pointer<Void>, Pointer<Uint16>, Uint32);
typedef BluetoothGATTGetDescriptorsDart = int Function(Pointer<Void>, Pointer<Void>, int, Pointer<Void>, Pointer<Uint16>, int);
final BluetoothGATTGetDescriptors = DynamicLibrary.open('BluetoothApis.dll')
    .lookupFunction<BluetoothGATTGetDescriptorsNative, BluetoothGATTGetDescriptorsDart>('BluetoothGATTGetDescriptors');
// hDevice : HANDLE -> Pointer<Void>
// Characteristic : BTH_LE_GATT_CHARACTERISTIC* -> Pointer<Void>
// DescriptorsBufferCount : WORD -> Uint16
// DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR* optional, out -> Pointer<Void>
// DescriptorsBufferActual : WORD* out -> Pointer<Uint16>
// Flags : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function BluetoothGATTGetDescriptors(
  hDevice: THandle;   // HANDLE
  Characteristic: Pointer;   // BTH_LE_GATT_CHARACTERISTIC*
  DescriptorsBufferCount: Word;   // WORD
  DescriptorsBuffer: Pointer;   // BTH_LE_GATT_DESCRIPTOR* optional, out
  DescriptorsBufferActual: Pointer;   // WORD* out
  Flags: DWORD   // DWORD
): Integer; stdcall;
  external 'BluetoothApis.dll' name 'BluetoothGATTGetDescriptors';

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

foreign import stdcall safe "BluetoothGATTGetDescriptors"
  c_BluetoothGATTGetDescriptors :: Ptr () -> Ptr () -> Word16 -> Ptr () -> Ptr Word16 -> Word32 -> IO Int32
-- hDevice : HANDLE -> Ptr ()
-- Characteristic : BTH_LE_GATT_CHARACTERISTIC* -> Ptr ()
-- DescriptorsBufferCount : WORD -> Word16
-- DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR* optional, out -> Ptr ()
-- DescriptorsBufferActual : WORD* out -> Ptr Word16
-- Flags : DWORD -> 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 bluetoothgattgetdescriptors =
  foreign "BluetoothGATTGetDescriptors"
    ((ptr void) @-> (ptr void) @-> uint16_t @-> (ptr void) @-> (ptr uint16_t) @-> uint32_t @-> returning int32_t)
(* hDevice : HANDLE -> (ptr void) *)
(* Characteristic : BTH_LE_GATT_CHARACTERISTIC* -> (ptr void) *)
(* DescriptorsBufferCount : WORD -> uint16_t *)
(* DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR* optional, out -> (ptr void) *)
(* DescriptorsBufferActual : WORD* out -> (ptr uint16_t) *)
(* Flags : DWORD -> 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 bluetoothapis (t "BluetoothApis.dll"))
(cffi:use-foreign-library bluetoothapis)

(cffi:defcfun ("BluetoothGATTGetDescriptors" bluetooth-gattget-descriptors :convention :stdcall) :int32
  (h-device :pointer)   ; HANDLE
  (characteristic :pointer)   ; BTH_LE_GATT_CHARACTERISTIC*
  (descriptors-buffer-count :uint16)   ; WORD
  (descriptors-buffer :pointer)   ; BTH_LE_GATT_DESCRIPTOR* optional, out
  (descriptors-buffer-actual :pointer)   ; WORD* out
  (flags :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $BluetoothGATTGetDescriptors = Win32::API::More->new('BluetoothApis',
    'int BluetoothGATTGetDescriptors(HANDLE hDevice, LPVOID Characteristic, WORD DescriptorsBufferCount, LPVOID DescriptorsBuffer, LPVOID DescriptorsBufferActual, DWORD Flags)');
# my $ret = $BluetoothGATTGetDescriptors->Call($hDevice, $Characteristic, $DescriptorsBufferCount, $DescriptorsBuffer, $DescriptorsBufferActual, $Flags);
# hDevice : HANDLE -> HANDLE
# Characteristic : BTH_LE_GATT_CHARACTERISTIC* -> LPVOID
# DescriptorsBufferCount : WORD -> WORD
# DescriptorsBuffer : BTH_LE_GATT_DESCRIPTOR* optional, out -> LPVOID
# DescriptorsBufferActual : WORD* out -> LPVOID
# Flags : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。