DnsStartMulticastQuery

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

INT DnsStartMulticastQuery(
    MDNS_QUERY_REQUEST* pQueryRequest,
    MDNS_QUERY_HANDLE* pHandle
);

<DllImport("DNSAPI.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function DnsStartMulticastQuery(
    pQueryRequest As IntPtr,   ' MDNS_QUERY_REQUEST*
    pHandle As IntPtr   ' MDNS_QUERY_HANDLE* in/out
) As Integer
End Function

' pQueryRequest : MDNS_QUERY_REQUEST*
' pHandle : MDNS_QUERY_HANDLE* in/out
Declare PtrSafe Function DnsStartMulticastQuery Lib "dnsapi" ( _
    ByVal pQueryRequest As LongPtr, _
    ByVal pHandle 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

DnsStartMulticastQuery = ctypes.windll.dnsapi.DnsStartMulticastQuery
DnsStartMulticastQuery.restype = ctypes.c_int
DnsStartMulticastQuery.argtypes = [
    ctypes.c_void_p,  # pQueryRequest : MDNS_QUERY_REQUEST*
    ctypes.c_void_p,  # pHandle : MDNS_QUERY_HANDLE* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('DNSAPI.dll')
DnsStartMulticastQuery = Fiddle::Function.new(
  lib['DnsStartMulticastQuery'],
  [
    Fiddle::TYPE_VOIDP,  # pQueryRequest : MDNS_QUERY_REQUEST*
    Fiddle::TYPE_VOIDP,  # pHandle : MDNS_QUERY_HANDLE* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "dnsapi")]
extern "system" {
    fn DnsStartMulticastQuery(
        pQueryRequest: *mut MDNS_QUERY_REQUEST,  // MDNS_QUERY_REQUEST*
        pHandle: *mut MDNS_QUERY_HANDLE  // MDNS_QUERY_HANDLE* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("DNSAPI.dll", SetLastError = true)]
public static extern int DnsStartMulticastQuery(IntPtr pQueryRequest, IntPtr pHandle);
"@
$api = Add-Type -MemberDefinition $sig -Name 'DNSAPI_DnsStartMulticastQuery' -Namespace Win32 -PassThru
# $api::DnsStartMulticastQuery(pQueryRequest, pHandle)

#uselib "DNSAPI.dll"
#func global DnsStartMulticastQuery "DnsStartMulticastQuery" sptr, sptr
; DnsStartMulticastQuery varptr(pQueryRequest), varptr(pHandle)   ; 戻り値は stat
; pQueryRequest : MDNS_QUERY_REQUEST* -> "sptr"
; pHandle : MDNS_QUERY_HANDLE* 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。

#uselib "DNSAPI.dll"
#cfunc global DnsStartMulticastQuery "DnsStartMulticastQuery" var, var
; res = DnsStartMulticastQuery(pQueryRequest, pHandle)
; pQueryRequest : MDNS_QUERY_REQUEST* -> "var"
; pHandle : MDNS_QUERY_HANDLE* 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。

; INT DnsStartMulticastQuery(MDNS_QUERY_REQUEST* pQueryRequest, MDNS_QUERY_HANDLE* pHandle)
#uselib "DNSAPI.dll"
#cfunc global DnsStartMulticastQuery "DnsStartMulticastQuery" var, var
; res = DnsStartMulticastQuery(pQueryRequest, pHandle)
; pQueryRequest : MDNS_QUERY_REQUEST* -> "var"
; pHandle : MDNS_QUERY_HANDLE* 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 (
	dnsapi = windows.NewLazySystemDLL("DNSAPI.dll")
	procDnsStartMulticastQuery = dnsapi.NewProc("DnsStartMulticastQuery")
)

// pQueryRequest (MDNS_QUERY_REQUEST*), pHandle (MDNS_QUERY_HANDLE* in/out)
r1, _, err := procDnsStartMulticastQuery.Call(
	uintptr(pQueryRequest),
	uintptr(pHandle),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function DnsStartMulticastQuery(
  pQueryRequest: Pointer;   // MDNS_QUERY_REQUEST*
  pHandle: Pointer   // MDNS_QUERY_HANDLE* in/out
): Integer; stdcall;
  external 'DNSAPI.dll' name 'DnsStartMulticastQuery';

result := DllCall("DNSAPI\DnsStartMulticastQuery"
    , "Ptr", pQueryRequest   ; MDNS_QUERY_REQUEST*
    , "Ptr", pHandle   ; MDNS_QUERY_HANDLE* in/out
    , "Int")   ; return: INT

●DnsStartMulticastQuery(pQueryRequest, pHandle) = DLL("DNSAPI.dll", "int DnsStartMulticastQuery(void*, void*)")
# 呼び出し: DnsStartMulticastQuery(pQueryRequest, pHandle)
# pQueryRequest : MDNS_QUERY_REQUEST* -> "void*"
# pHandle : MDNS_QUERY_HANDLE* 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)。