WlanGetAvailableNetworkList

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

DWORD WlanGetAvailableNetworkList(
    HANDLE hClientHandle,
    const GUID* pInterfaceGuid,
    DWORD dwFlags,
    void* pReserved,   // optional
    WLAN_AVAILABLE_NETWORK_LIST** ppAvailableNetworkList
);

<DllImport("wlanapi.dll", ExactSpelling:=True)>
Public Shared Function WlanGetAvailableNetworkList(
    hClientHandle As IntPtr,   ' HANDLE
    ByRef pInterfaceGuid As Guid,   ' GUID*
    dwFlags As UInteger,   ' DWORD
    pReserved As IntPtr,   ' void* optional
    ppAvailableNetworkList As IntPtr   ' WLAN_AVAILABLE_NETWORK_LIST** out
) As UInteger
End Function

' hClientHandle : HANDLE
' pInterfaceGuid : GUID*
' dwFlags : DWORD
' pReserved : void* optional
' ppAvailableNetworkList : WLAN_AVAILABLE_NETWORK_LIST** out
Declare PtrSafe Function WlanGetAvailableNetworkList Lib "wlanapi" ( _
    ByVal hClientHandle As LongPtr, _
    ByVal pInterfaceGuid As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal pReserved As LongPtr, _
    ByVal ppAvailableNetworkList 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

WlanGetAvailableNetworkList = ctypes.windll.wlanapi.WlanGetAvailableNetworkList
WlanGetAvailableNetworkList.restype = wintypes.DWORD
WlanGetAvailableNetworkList.argtypes = [
    wintypes.HANDLE,  # hClientHandle : HANDLE
    ctypes.c_void_p,  # pInterfaceGuid : GUID*
    wintypes.DWORD,  # dwFlags : DWORD
    ctypes.POINTER(None),  # pReserved : void* optional
    ctypes.c_void_p,  # ppAvailableNetworkList : WLAN_AVAILABLE_NETWORK_LIST** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('wlanapi.dll')
WlanGetAvailableNetworkList = Fiddle::Function.new(
  lib['WlanGetAvailableNetworkList'],
  [
    Fiddle::TYPE_VOIDP,  # hClientHandle : HANDLE
    Fiddle::TYPE_VOIDP,  # pInterfaceGuid : GUID*
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # pReserved : void* optional
    Fiddle::TYPE_VOIDP,  # ppAvailableNetworkList : WLAN_AVAILABLE_NETWORK_LIST** out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "wlanapi")]
extern "system" {
    fn WlanGetAvailableNetworkList(
        hClientHandle: *mut core::ffi::c_void,  // HANDLE
        pInterfaceGuid: *const GUID,  // GUID*
        dwFlags: u32,  // DWORD
        pReserved: *mut (),  // void* optional
        ppAvailableNetworkList: *mut *mut WLAN_AVAILABLE_NETWORK_LIST  // WLAN_AVAILABLE_NETWORK_LIST** out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("wlanapi.dll")]
public static extern uint WlanGetAvailableNetworkList(IntPtr hClientHandle, ref Guid pInterfaceGuid, uint dwFlags, IntPtr pReserved, IntPtr ppAvailableNetworkList);
"@
$api = Add-Type -MemberDefinition $sig -Name 'wlanapi_WlanGetAvailableNetworkList' -Namespace Win32 -PassThru
# $api::WlanGetAvailableNetworkList(hClientHandle, pInterfaceGuid, dwFlags, pReserved, ppAvailableNetworkList)

#uselib "wlanapi.dll"
#func global WlanGetAvailableNetworkList "WlanGetAvailableNetworkList" sptr, sptr, sptr, sptr, sptr
; WlanGetAvailableNetworkList hClientHandle, varptr(pInterfaceGuid), dwFlags, pReserved, varptr(ppAvailableNetworkList)   ; 戻り値は stat
; hClientHandle : HANDLE -> "sptr"
; pInterfaceGuid : GUID* -> "sptr"
; dwFlags : DWORD -> "sptr"
; pReserved : void* optional -> "sptr"
; ppAvailableNetworkList : WLAN_AVAILABLE_NETWORK_LIST** 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 "wlanapi.dll"
#cfunc global WlanGetAvailableNetworkList "WlanGetAvailableNetworkList" sptr, var, int, sptr, var
; res = WlanGetAvailableNetworkList(hClientHandle, pInterfaceGuid, dwFlags, pReserved, ppAvailableNetworkList)
; hClientHandle : HANDLE -> "sptr"
; pInterfaceGuid : GUID* -> "var"
; dwFlags : DWORD -> "int"
; pReserved : void* optional -> "sptr"
; ppAvailableNetworkList : WLAN_AVAILABLE_NETWORK_LIST** 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。

; DWORD WlanGetAvailableNetworkList(HANDLE hClientHandle, GUID* pInterfaceGuid, DWORD dwFlags, void* pReserved, WLAN_AVAILABLE_NETWORK_LIST** ppAvailableNetworkList)
#uselib "wlanapi.dll"
#cfunc global WlanGetAvailableNetworkList "WlanGetAvailableNetworkList" intptr, var, int, intptr, var
; res = WlanGetAvailableNetworkList(hClientHandle, pInterfaceGuid, dwFlags, pReserved, ppAvailableNetworkList)
; hClientHandle : HANDLE -> "intptr"
; pInterfaceGuid : GUID* -> "var"
; dwFlags : DWORD -> "int"
; pReserved : void* optional -> "intptr"
; ppAvailableNetworkList : WLAN_AVAILABLE_NETWORK_LIST** 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 (
	wlanapi = windows.NewLazySystemDLL("wlanapi.dll")
	procWlanGetAvailableNetworkList = wlanapi.NewProc("WlanGetAvailableNetworkList")
)

// hClientHandle (HANDLE), pInterfaceGuid (GUID*), dwFlags (DWORD), pReserved (void* optional), ppAvailableNetworkList (WLAN_AVAILABLE_NETWORK_LIST** out)
r1, _, err := procWlanGetAvailableNetworkList.Call(
	uintptr(hClientHandle),
	uintptr(pInterfaceGuid),
	uintptr(dwFlags),
	uintptr(pReserved),
	uintptr(ppAvailableNetworkList),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function WlanGetAvailableNetworkList(
  hClientHandle: THandle;   // HANDLE
  pInterfaceGuid: PGUID;   // GUID*
  dwFlags: DWORD;   // DWORD
  pReserved: Pointer;   // void* optional
  ppAvailableNetworkList: Pointer   // WLAN_AVAILABLE_NETWORK_LIST** out
): DWORD; stdcall;
  external 'wlanapi.dll' name 'WlanGetAvailableNetworkList';

result := DllCall("wlanapi\WlanGetAvailableNetworkList"
    , "Ptr", hClientHandle   ; HANDLE
    , "Ptr", pInterfaceGuid   ; GUID*
    , "UInt", dwFlags   ; DWORD
    , "Ptr", pReserved   ; void* optional
    , "Ptr", ppAvailableNetworkList   ; WLAN_AVAILABLE_NETWORK_LIST** out
    , "UInt")   ; return: DWORD

●WlanGetAvailableNetworkList(hClientHandle, pInterfaceGuid, dwFlags, pReserved, ppAvailableNetworkList) = DLL("wlanapi.dll", "dword WlanGetAvailableNetworkList(void*, void*, dword, void*, void*)")
# 呼び出し: WlanGetAvailableNetworkList(hClientHandle, pInterfaceGuid, dwFlags, pReserved, ppAvailableNetworkList)
# hClientHandle : HANDLE -> "void*"
# pInterfaceGuid : GUID* -> "void*"
# dwFlags : DWORD -> "dword"
# pReserved : void* optional -> "void*"
# ppAvailableNetworkList : WLAN_AVAILABLE_NETWORK_LIST** 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)。