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BluetoothFindFirstDevice

関数
条件に合う最初のBluetoothデバイスを検索する。
DLLBluetoothApis.dll呼出規約winapiSetLastErrorあり対応OSWindows Vista 以降
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シグネチャ

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

HBLUETOOTH_DEVICE_FIND BluetoothFindFirstDevice(
    const BLUETOOTH_DEVICE_SEARCH_PARAMS* pbtsp,
    BLUETOOTH_DEVICE_INFO* pbtdi
);

パラメーター

名前型方向説明
pbtspBLUETOOTH_DEVICE_SEARCH_PARAMS*inデバイス検索条件を指定する構造体へのポインタ。検索範囲やラジオを指定。
pbtdiBLUETOOTH_DEVICE_INFO*inout最初に見つかったデバイス情報を受け取る構造体ポインタ。dwSizeの設定が必要。

戻り値の型: HBLUETOOTH_DEVICE_FIND

各言語での呼び出し定義

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

HBLUETOOTH_DEVICE_FIND BluetoothFindFirstDevice(
    const BLUETOOTH_DEVICE_SEARCH_PARAMS* pbtsp,
    BLUETOOTH_DEVICE_INFO* pbtdi
);
[DllImport("BluetoothApis.dll", SetLastError = true, ExactSpelling = true)]
static extern IntPtr BluetoothFindFirstDevice(
    IntPtr pbtsp,   // BLUETOOTH_DEVICE_SEARCH_PARAMS*
    IntPtr pbtdi   // BLUETOOTH_DEVICE_INFO* in/out
);
<DllImport("BluetoothApis.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function BluetoothFindFirstDevice(
    pbtsp As IntPtr,   ' BLUETOOTH_DEVICE_SEARCH_PARAMS*
    pbtdi As IntPtr   ' BLUETOOTH_DEVICE_INFO* in/out
) As IntPtr
End Function
' pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS*
' pbtdi : BLUETOOTH_DEVICE_INFO* in/out
Declare PtrSafe Function BluetoothFindFirstDevice Lib "bluetoothapis" ( _
    ByVal pbtsp As LongPtr, _
    ByVal pbtdi As LongPtr) As LongPtr
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。
import ctypes
from ctypes import wintypes

BluetoothFindFirstDevice = ctypes.windll.bluetoothapis.BluetoothFindFirstDevice
BluetoothFindFirstDevice.restype = ctypes.c_void_p
BluetoothFindFirstDevice.argtypes = [
    ctypes.c_void_p,  # pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS*
    ctypes.c_void_p,  # pbtdi : BLUETOOTH_DEVICE_INFO* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))
require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('BluetoothApis.dll')
BluetoothFindFirstDevice = Fiddle::Function.new(
  lib['BluetoothFindFirstDevice'],
  [
    Fiddle::TYPE_VOIDP,  # pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS*
    Fiddle::TYPE_VOIDP,  # pbtdi : BLUETOOTH_DEVICE_INFO* in/out
  ],
  Fiddle::TYPE_VOIDP)
#[link(name = "bluetoothapis")]
extern "system" {
    fn BluetoothFindFirstDevice(
        pbtsp: *const BLUETOOTH_DEVICE_SEARCH_PARAMS,  // BLUETOOTH_DEVICE_SEARCH_PARAMS*
        pbtdi: *mut BLUETOOTH_DEVICE_INFO  // BLUETOOTH_DEVICE_INFO* in/out
    ) -> *mut core::ffi::c_void;
}
// crates: windows-sys provides ready-made bindings for this API.
$sig = @"
[DllImport("BluetoothApis.dll", SetLastError = true)]
public static extern IntPtr BluetoothFindFirstDevice(IntPtr pbtsp, IntPtr pbtdi);
"@
$api = Add-Type -MemberDefinition $sig -Name 'BluetoothApis_BluetoothFindFirstDevice' -Namespace Win32 -PassThru
# $api::BluetoothFindFirstDevice(pbtsp, pbtdi)
#uselib "BluetoothApis.dll"
#func global BluetoothFindFirstDevice "BluetoothFindFirstDevice" sptr, sptr
; BluetoothFindFirstDevice varptr(pbtsp), varptr(pbtdi)   ; 戻り値は stat
; pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS* -> "sptr"
; pbtdi : BLUETOOTH_DEVICE_INFO* in/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。
出力引数: 
#uselib "BluetoothApis.dll"
#cfunc global BluetoothFindFirstDevice "BluetoothFindFirstDevice" var, var
; res = BluetoothFindFirstDevice(pbtsp, pbtdi)
; pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS* -> "var"
; pbtdi : BLUETOOTH_DEVICE_INFO* in/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。
出力引数: 
; HBLUETOOTH_DEVICE_FIND BluetoothFindFirstDevice(BLUETOOTH_DEVICE_SEARCH_PARAMS* pbtsp, BLUETOOTH_DEVICE_INFO* pbtdi)
#uselib "BluetoothApis.dll"
#cfunc global BluetoothFindFirstDevice "BluetoothFindFirstDevice" var, var
; res = BluetoothFindFirstDevice(pbtsp, pbtdi)
; pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS* -> "var"
; pbtdi : BLUETOOTH_DEVICE_INFO* in/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 (
	bluetoothapis = windows.NewLazySystemDLL("BluetoothApis.dll")
	procBluetoothFindFirstDevice = bluetoothapis.NewProc("BluetoothFindFirstDevice")
)

// pbtsp (BLUETOOTH_DEVICE_SEARCH_PARAMS*), pbtdi (BLUETOOTH_DEVICE_INFO* in/out)
r1, _, err := procBluetoothFindFirstDevice.Call(
	uintptr(pbtsp),
	uintptr(pbtdi),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HBLUETOOTH_DEVICE_FIND
function BluetoothFindFirstDevice(
  pbtsp: Pointer;   // BLUETOOTH_DEVICE_SEARCH_PARAMS*
  pbtdi: Pointer   // BLUETOOTH_DEVICE_INFO* in/out
): THandle; stdcall;
  external 'BluetoothApis.dll' name 'BluetoothFindFirstDevice';
result := DllCall("BluetoothApis\BluetoothFindFirstDevice"
    , "Ptr", pbtsp   ; BLUETOOTH_DEVICE_SEARCH_PARAMS*
    , "Ptr", pbtdi   ; BLUETOOTH_DEVICE_INFO* in/out
    , "Ptr")   ; return: HBLUETOOTH_DEVICE_FIND
●BluetoothFindFirstDevice(pbtsp, pbtdi) = DLL("BluetoothApis.dll", "void* BluetoothFindFirstDevice(void*, void*)")
# 呼び出し: BluetoothFindFirstDevice(pbtsp, pbtdi)
# pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS* -> "void*"
# pbtdi : BLUETOOTH_DEVICE_INFO* in/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 "bluetoothapis" fn BluetoothFindFirstDevice(
    pbtsp: [*c]BLUETOOTH_DEVICE_SEARCH_PARAMS, // BLUETOOTH_DEVICE_SEARCH_PARAMS*
    pbtdi: [*c]BLUETOOTH_DEVICE_INFO // BLUETOOTH_DEVICE_INFO* in/out
) callconv(std.os.windows.WINAPI) ?*anyopaque;
proc BluetoothFindFirstDevice(
    pbtsp: ptr BLUETOOTH_DEVICE_SEARCH_PARAMS,  # BLUETOOTH_DEVICE_SEARCH_PARAMS*
    pbtdi: ptr BLUETOOTH_DEVICE_INFO  # BLUETOOTH_DEVICE_INFO* in/out
): pointer {.importc: "BluetoothFindFirstDevice", stdcall, dynlib: "BluetoothApis.dll".}
pragma(lib, "bluetoothapis");
extern(Windows)
void* BluetoothFindFirstDevice(
    BLUETOOTH_DEVICE_SEARCH_PARAMS* pbtsp,   // BLUETOOTH_DEVICE_SEARCH_PARAMS*
    BLUETOOTH_DEVICE_INFO* pbtdi   // BLUETOOTH_DEVICE_INFO* in/out
);
ccall((:BluetoothFindFirstDevice, "BluetoothApis.dll"), stdcall, Ptr{Cvoid},
      (Ptr{BLUETOOTH_DEVICE_SEARCH_PARAMS}, Ptr{BLUETOOTH_DEVICE_INFO}),
      pbtsp, pbtdi)
# pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS* -> Ptr{BLUETOOTH_DEVICE_SEARCH_PARAMS}
# pbtdi : BLUETOOTH_DEVICE_INFO* in/out -> Ptr{BLUETOOTH_DEVICE_INFO}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
local ffi = require("ffi")
ffi.cdef[[
void* BluetoothFindFirstDevice(
    void* pbtsp,
    void* pbtdi);
]]
local bluetoothapis = ffi.load("bluetoothapis")
-- bluetoothapis.BluetoothFindFirstDevice(pbtsp, pbtdi)
-- pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS*
-- pbtdi : BLUETOOTH_DEVICE_INFO* in/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('BluetoothApis.dll');
const BluetoothFindFirstDevice = lib.func('__stdcall', 'BluetoothFindFirstDevice', 'void *', ['void *', 'void *']);
// BluetoothFindFirstDevice(pbtsp, pbtdi)
// pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS* -> 'void *'
// pbtdi : BLUETOOTH_DEVICE_INFO* in/out -> 'void *'
// 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", {
  BluetoothFindFirstDevice: { parameters: ["pointer", "pointer"], result: "pointer" },
});
// lib.symbols.BluetoothFindFirstDevice(pbtsp, pbtdi)
// pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS* -> "pointer"
// pbtdi : BLUETOOTH_DEVICE_INFO* in/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
void* BluetoothFindFirstDevice(
    void* pbtsp,
    void* pbtdi);
C, "BluetoothApis.dll");
// $ffi->BluetoothFindFirstDevice(pbtsp, pbtdi);
// pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS*
// pbtdi : BLUETOOTH_DEVICE_INFO* in/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 Bluetoothapis extends StdCallLibrary {
    Bluetoothapis INSTANCE = Native.load("bluetoothapis", Bluetoothapis.class);
    Pointer BluetoothFindFirstDevice(
        Pointer pbtsp,   // BLUETOOTH_DEVICE_SEARCH_PARAMS*
        Pointer pbtdi   // BLUETOOTH_DEVICE_INFO* in/out
    );
}
@[Link("bluetoothapis")]
lib LibBluetoothApis
  fun BluetoothFindFirstDevice = BluetoothFindFirstDevice(
    pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS*,   # BLUETOOTH_DEVICE_SEARCH_PARAMS*
    pbtdi : BLUETOOTH_DEVICE_INFO*   # BLUETOOTH_DEVICE_INFO* in/out
  ) : Void*
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 BluetoothFindFirstDeviceNative = Pointer<Void> Function(Pointer<Void>, Pointer<Void>);
typedef BluetoothFindFirstDeviceDart = Pointer<Void> Function(Pointer<Void>, Pointer<Void>);
final BluetoothFindFirstDevice = DynamicLibrary.open('BluetoothApis.dll')
    .lookupFunction<BluetoothFindFirstDeviceNative, BluetoothFindFirstDeviceDart>('BluetoothFindFirstDevice');
// pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS* -> Pointer<Void>
// pbtdi : BLUETOOTH_DEVICE_INFO* in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。
{$mode objfpc}{$H+}
function BluetoothFindFirstDevice(
  pbtsp: Pointer;   // BLUETOOTH_DEVICE_SEARCH_PARAMS*
  pbtdi: Pointer   // BLUETOOTH_DEVICE_INFO* in/out
): THandle; stdcall;
  external 'BluetoothApis.dll' name 'BluetoothFindFirstDevice';
import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "BluetoothFindFirstDevice"
  c_BluetoothFindFirstDevice :: Ptr () -> Ptr () -> IO (Ptr ())
-- pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS* -> Ptr ()
-- pbtdi : BLUETOOTH_DEVICE_INFO* in/out -> Ptr ()
-- 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 bluetoothfindfirstdevice =
  foreign "BluetoothFindFirstDevice"
    ((ptr void) @-> (ptr void) @-> returning (ptr void))
(* pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS* -> (ptr void) *)
(* pbtdi : BLUETOOTH_DEVICE_INFO* in/out -> (ptr void) *)
(* 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 ("BluetoothFindFirstDevice" bluetooth-find-first-device :convention :stdcall) :pointer
  (pbtsp :pointer)   ; BLUETOOTH_DEVICE_SEARCH_PARAMS*
  (pbtdi :pointer))   ; BLUETOOTH_DEVICE_INFO* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。
use Win32::API;
my $BluetoothFindFirstDevice = Win32::API::More->new('BluetoothApis',
    'HANDLE BluetoothFindFirstDevice(LPVOID pbtsp, LPVOID pbtdi)');
# my $ret = $BluetoothFindFirstDevice->Call($pbtsp, $pbtdi);
# pbtsp : BLUETOOTH_DEVICE_SEARCH_PARAMS* -> LPVOID
# pbtdi : BLUETOOTH_DEVICE_INFO* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。

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