WlanScan

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

DWORD WlanScan(
    HANDLE hClientHandle,
    const GUID* pInterfaceGuid,
    const DOT11_SSID* pDot11Ssid,   // optional
    const WLAN_RAW_DATA* pIeData,   // optional
    void* pReserved   // optional
);

<DllImport("wlanapi.dll", ExactSpelling:=True)>
Public Shared Function WlanScan(
    hClientHandle As IntPtr,   ' HANDLE
    ByRef pInterfaceGuid As Guid,   ' GUID*
    pDot11Ssid As IntPtr,   ' DOT11_SSID* optional
    pIeData As IntPtr,   ' WLAN_RAW_DATA* optional
    pReserved As IntPtr   ' void* optional
) As UInteger
End Function

' hClientHandle : HANDLE
' pInterfaceGuid : GUID*
' pDot11Ssid : DOT11_SSID* optional
' pIeData : WLAN_RAW_DATA* optional
' pReserved : void* optional
Declare PtrSafe Function WlanScan Lib "wlanapi" ( _
    ByVal hClientHandle As LongPtr, _
    ByVal pInterfaceGuid As LongPtr, _
    ByVal pDot11Ssid As LongPtr, _
    ByVal pIeData As LongPtr, _
    ByVal pReserved 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

WlanScan = ctypes.windll.wlanapi.WlanScan
WlanScan.restype = wintypes.DWORD
WlanScan.argtypes = [
    wintypes.HANDLE,  # hClientHandle : HANDLE
    ctypes.c_void_p,  # pInterfaceGuid : GUID*
    ctypes.c_void_p,  # pDot11Ssid : DOT11_SSID* optional
    ctypes.c_void_p,  # pIeData : WLAN_RAW_DATA* optional
    ctypes.POINTER(None),  # pReserved : void* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('wlanapi.dll')
WlanScan = Fiddle::Function.new(
  lib['WlanScan'],
  [
    Fiddle::TYPE_VOIDP,  # hClientHandle : HANDLE
    Fiddle::TYPE_VOIDP,  # pInterfaceGuid : GUID*
    Fiddle::TYPE_VOIDP,  # pDot11Ssid : DOT11_SSID* optional
    Fiddle::TYPE_VOIDP,  # pIeData : WLAN_RAW_DATA* optional
    Fiddle::TYPE_VOIDP,  # pReserved : void* optional
  ],
  -Fiddle::TYPE_INT)

#[link(name = "wlanapi")]
extern "system" {
    fn WlanScan(
        hClientHandle: *mut core::ffi::c_void,  // HANDLE
        pInterfaceGuid: *const GUID,  // GUID*
        pDot11Ssid: *const DOT11_SSID,  // DOT11_SSID* optional
        pIeData: *const WLAN_RAW_DATA,  // WLAN_RAW_DATA* optional
        pReserved: *mut ()  // void* optional
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("wlanapi.dll")]
public static extern uint WlanScan(IntPtr hClientHandle, ref Guid pInterfaceGuid, IntPtr pDot11Ssid, IntPtr pIeData, IntPtr pReserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'wlanapi_WlanScan' -Namespace Win32 -PassThru
# $api::WlanScan(hClientHandle, pInterfaceGuid, pDot11Ssid, pIeData, pReserved)

#uselib "wlanapi.dll"
#func global WlanScan "WlanScan" sptr, sptr, sptr, sptr, sptr
; WlanScan hClientHandle, varptr(pInterfaceGuid), varptr(pDot11Ssid), varptr(pIeData), pReserved   ; 戻り値は stat
; hClientHandle : HANDLE -> "sptr"
; pInterfaceGuid : GUID* -> "sptr"
; pDot11Ssid : DOT11_SSID* optional -> "sptr"
; pIeData : WLAN_RAW_DATA* optional -> "sptr"
; pReserved : void* 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 "wlanapi.dll"
#cfunc global WlanScan "WlanScan" sptr, var, var, var, sptr
; res = WlanScan(hClientHandle, pInterfaceGuid, pDot11Ssid, pIeData, pReserved)
; hClientHandle : HANDLE -> "sptr"
; pInterfaceGuid : GUID* -> "var"
; pDot11Ssid : DOT11_SSID* optional -> "var"
; pIeData : WLAN_RAW_DATA* optional -> "var"
; pReserved : void* optional -> "sptr"
; ※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 WlanScan(HANDLE hClientHandle, GUID* pInterfaceGuid, DOT11_SSID* pDot11Ssid, WLAN_RAW_DATA* pIeData, void* pReserved)
#uselib "wlanapi.dll"
#cfunc global WlanScan "WlanScan" intptr, var, var, var, intptr
; res = WlanScan(hClientHandle, pInterfaceGuid, pDot11Ssid, pIeData, pReserved)
; hClientHandle : HANDLE -> "intptr"
; pInterfaceGuid : GUID* -> "var"
; pDot11Ssid : DOT11_SSID* optional -> "var"
; pIeData : WLAN_RAW_DATA* optional -> "var"
; pReserved : void* optional -> "intptr"
; ※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")
	procWlanScan = wlanapi.NewProc("WlanScan")
)

// hClientHandle (HANDLE), pInterfaceGuid (GUID*), pDot11Ssid (DOT11_SSID* optional), pIeData (WLAN_RAW_DATA* optional), pReserved (void* optional)
r1, _, err := procWlanScan.Call(
	uintptr(hClientHandle),
	uintptr(pInterfaceGuid),
	uintptr(pDot11Ssid),
	uintptr(pIeData),
	uintptr(pReserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function WlanScan(
  hClientHandle: THandle;   // HANDLE
  pInterfaceGuid: PGUID;   // GUID*
  pDot11Ssid: Pointer;   // DOT11_SSID* optional
  pIeData: Pointer;   // WLAN_RAW_DATA* optional
  pReserved: Pointer   // void* optional
): DWORD; stdcall;
  external 'wlanapi.dll' name 'WlanScan';

result := DllCall("wlanapi\WlanScan"
    , "Ptr", hClientHandle   ; HANDLE
    , "Ptr", pInterfaceGuid   ; GUID*
    , "Ptr", pDot11Ssid   ; DOT11_SSID* optional
    , "Ptr", pIeData   ; WLAN_RAW_DATA* optional
    , "Ptr", pReserved   ; void* optional
    , "UInt")   ; return: DWORD

●WlanScan(hClientHandle, pInterfaceGuid, pDot11Ssid, pIeData, pReserved) = DLL("wlanapi.dll", "dword WlanScan(void*, void*, void*, void*, void*)")
# 呼び出し: WlanScan(hClientHandle, pInterfaceGuid, pDot11Ssid, pIeData, pReserved)
# hClientHandle : HANDLE -> "void*"
# pInterfaceGuid : GUID* -> "void*"
# pDot11Ssid : DOT11_SSID* optional -> "void*"
# pIeData : WLAN_RAW_DATA* optional -> "void*"
# pReserved : void* 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)。