BluetoothIsDiscoverable

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

BOOL BluetoothIsDiscoverable(
    HANDLE hRadio   // optional
);

<DllImport("BluetoothApis.dll", ExactSpelling:=True)>
Public Shared Function BluetoothIsDiscoverable(
    hRadio As IntPtr   ' HANDLE optional
) As Boolean
End Function

' hRadio : HANDLE optional
Declare PtrSafe Function BluetoothIsDiscoverable Lib "bluetoothapis" ( _
    ByVal hRadio 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

BluetoothIsDiscoverable = ctypes.windll.bluetoothapis.BluetoothIsDiscoverable
BluetoothIsDiscoverable.restype = wintypes.BOOL
BluetoothIsDiscoverable.argtypes = [
    wintypes.HANDLE,  # hRadio : HANDLE optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('BluetoothApis.dll')
BluetoothIsDiscoverable = Fiddle::Function.new(
  lib['BluetoothIsDiscoverable'],
  [
    Fiddle::TYPE_VOIDP,  # hRadio : HANDLE optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "bluetoothapis")]
extern "system" {
    fn BluetoothIsDiscoverable(
        hRadio: *mut core::ffi::c_void  // HANDLE optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("BluetoothApis.dll")]
public static extern bool BluetoothIsDiscoverable(IntPtr hRadio);
"@
$api = Add-Type -MemberDefinition $sig -Name 'BluetoothApis_BluetoothIsDiscoverable' -Namespace Win32 -PassThru
# $api::BluetoothIsDiscoverable(hRadio)

#uselib "BluetoothApis.dll"
#func global BluetoothIsDiscoverable "BluetoothIsDiscoverable" sptr
; BluetoothIsDiscoverable hRadio   ; 戻り値は stat
; hRadio : HANDLE optional -> "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 "BluetoothApis.dll"
#cfunc global BluetoothIsDiscoverable "BluetoothIsDiscoverable" sptr
; res = BluetoothIsDiscoverable(hRadio)
; hRadio : HANDLE optional -> "sptr"

; BOOL BluetoothIsDiscoverable(HANDLE hRadio)
#uselib "BluetoothApis.dll"
#cfunc global BluetoothIsDiscoverable "BluetoothIsDiscoverable" intptr
; res = BluetoothIsDiscoverable(hRadio)
; hRadio : HANDLE optional -> "intptr"

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

var (
	bluetoothapis = windows.NewLazySystemDLL("BluetoothApis.dll")
	procBluetoothIsDiscoverable = bluetoothapis.NewProc("BluetoothIsDiscoverable")
)

// hRadio (HANDLE optional)
r1, _, err := procBluetoothIsDiscoverable.Call(
	uintptr(hRadio),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function BluetoothIsDiscoverable(
  hRadio: THandle   // HANDLE optional
): BOOL; stdcall;
  external 'BluetoothApis.dll' name 'BluetoothIsDiscoverable';

result := DllCall("BluetoothApis\BluetoothIsDiscoverable"
    , "Ptr", hRadio   ; HANDLE optional
    , "Int")   ; return: BOOL

●BluetoothIsDiscoverable(hRadio) = DLL("BluetoothApis.dll", "bool BluetoothIsDiscoverable(void*)")
# 呼び出し: BluetoothIsDiscoverable(hRadio)
# hRadio : HANDLE optional -> "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)。