WinHttpWebSocketQueryCloseStatus

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

DWORD WinHttpWebSocketQueryCloseStatus(
    void* hWebSocket,
    WORD* pusStatus,
    void* pvReason,   // optional
    DWORD dwReasonLength,
    DWORD* pdwReasonLengthConsumed
);

<DllImport("WINHTTP.dll", ExactSpelling:=True)>
Public Shared Function WinHttpWebSocketQueryCloseStatus(
    hWebSocket As IntPtr,   ' void*
    <Out> ByRef pusStatus As UShort,   ' WORD* out
    pvReason As IntPtr,   ' void* optional, out
    dwReasonLength As UInteger,   ' DWORD
    ByRef pdwReasonLengthConsumed As UInteger   ' DWORD* in/out
) As UInteger
End Function

' hWebSocket : void*
' pusStatus : WORD* out
' pvReason : void* optional, out
' dwReasonLength : DWORD
' pdwReasonLengthConsumed : DWORD* in/out
Declare PtrSafe Function WinHttpWebSocketQueryCloseStatus Lib "winhttp" ( _
    ByVal hWebSocket As LongPtr, _
    ByRef pusStatus As Integer, _
    ByVal pvReason As LongPtr, _
    ByVal dwReasonLength As Long, _
    ByRef pdwReasonLengthConsumed As Long) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WinHttpWebSocketQueryCloseStatus = ctypes.windll.winhttp.WinHttpWebSocketQueryCloseStatus
WinHttpWebSocketQueryCloseStatus.restype = wintypes.DWORD
WinHttpWebSocketQueryCloseStatus.argtypes = [
    ctypes.POINTER(None),  # hWebSocket : void*
    ctypes.POINTER(ctypes.c_ushort),  # pusStatus : WORD* out
    ctypes.POINTER(None),  # pvReason : void* optional, out
    wintypes.DWORD,  # dwReasonLength : DWORD
    ctypes.POINTER(wintypes.DWORD),  # pdwReasonLengthConsumed : DWORD* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINHTTP.dll')
WinHttpWebSocketQueryCloseStatus = Fiddle::Function.new(
  lib['WinHttpWebSocketQueryCloseStatus'],
  [
    Fiddle::TYPE_VOIDP,  # hWebSocket : void*
    Fiddle::TYPE_VOIDP,  # pusStatus : WORD* out
    Fiddle::TYPE_VOIDP,  # pvReason : void* optional, out
    -Fiddle::TYPE_INT,  # dwReasonLength : DWORD
    Fiddle::TYPE_VOIDP,  # pdwReasonLengthConsumed : DWORD* in/out
  ],
  -Fiddle::TYPE_INT)

#[link(name = "winhttp")]
extern "system" {
    fn WinHttpWebSocketQueryCloseStatus(
        hWebSocket: *mut (),  // void*
        pusStatus: *mut u16,  // WORD* out
        pvReason: *mut (),  // void* optional, out
        dwReasonLength: u32,  // DWORD
        pdwReasonLengthConsumed: *mut u32  // DWORD* in/out
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WINHTTP.dll")]
public static extern uint WinHttpWebSocketQueryCloseStatus(IntPtr hWebSocket, out ushort pusStatus, IntPtr pvReason, uint dwReasonLength, ref uint pdwReasonLengthConsumed);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINHTTP_WinHttpWebSocketQueryCloseStatus' -Namespace Win32 -PassThru
# $api::WinHttpWebSocketQueryCloseStatus(hWebSocket, pusStatus, pvReason, dwReasonLength, pdwReasonLengthConsumed)

#uselib "WINHTTP.dll"
#func global WinHttpWebSocketQueryCloseStatus "WinHttpWebSocketQueryCloseStatus" sptr, sptr, sptr, sptr, sptr
; WinHttpWebSocketQueryCloseStatus hWebSocket, varptr(pusStatus), pvReason, dwReasonLength, varptr(pdwReasonLengthConsumed)   ; 戻り値は stat
; hWebSocket : void* -> "sptr"
; pusStatus : WORD* out -> "sptr"
; pvReason : void* optional, out -> "sptr"
; dwReasonLength : DWORD -> "sptr"
; pdwReasonLengthConsumed : DWORD* 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 "WINHTTP.dll"
#cfunc global WinHttpWebSocketQueryCloseStatus "WinHttpWebSocketQueryCloseStatus" sptr, var, sptr, int, var
; res = WinHttpWebSocketQueryCloseStatus(hWebSocket, pusStatus, pvReason, dwReasonLength, pdwReasonLengthConsumed)
; hWebSocket : void* -> "sptr"
; pusStatus : WORD* out -> "var"
; pvReason : void* optional, out -> "sptr"
; dwReasonLength : DWORD -> "int"
; pdwReasonLengthConsumed : DWORD* 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。

; DWORD WinHttpWebSocketQueryCloseStatus(void* hWebSocket, WORD* pusStatus, void* pvReason, DWORD dwReasonLength, DWORD* pdwReasonLengthConsumed)
#uselib "WINHTTP.dll"
#cfunc global WinHttpWebSocketQueryCloseStatus "WinHttpWebSocketQueryCloseStatus" intptr, var, intptr, int, var
; res = WinHttpWebSocketQueryCloseStatus(hWebSocket, pusStatus, pvReason, dwReasonLength, pdwReasonLengthConsumed)
; hWebSocket : void* -> "intptr"
; pusStatus : WORD* out -> "var"
; pvReason : void* optional, out -> "intptr"
; dwReasonLength : DWORD -> "int"
; pdwReasonLengthConsumed : DWORD* 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 (
	winhttp = windows.NewLazySystemDLL("WINHTTP.dll")
	procWinHttpWebSocketQueryCloseStatus = winhttp.NewProc("WinHttpWebSocketQueryCloseStatus")
)

// hWebSocket (void*), pusStatus (WORD* out), pvReason (void* optional, out), dwReasonLength (DWORD), pdwReasonLengthConsumed (DWORD* in/out)
r1, _, err := procWinHttpWebSocketQueryCloseStatus.Call(
	uintptr(hWebSocket),
	uintptr(pusStatus),
	uintptr(pvReason),
	uintptr(dwReasonLength),
	uintptr(pdwReasonLengthConsumed),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // DWORD

function WinHttpWebSocketQueryCloseStatus(
  hWebSocket: Pointer;   // void*
  pusStatus: Pointer;   // WORD* out
  pvReason: Pointer;   // void* optional, out
  dwReasonLength: DWORD;   // DWORD
  pdwReasonLengthConsumed: Pointer   // DWORD* in/out
): DWORD; stdcall;
  external 'WINHTTP.dll' name 'WinHttpWebSocketQueryCloseStatus';

result := DllCall("WINHTTP\WinHttpWebSocketQueryCloseStatus"
    , "Ptr", hWebSocket   ; void*
    , "Ptr", pusStatus   ; WORD* out
    , "Ptr", pvReason   ; void* optional, out
    , "UInt", dwReasonLength   ; DWORD
    , "Ptr", pdwReasonLengthConsumed   ; DWORD* in/out
    , "UInt")   ; return: DWORD

●WinHttpWebSocketQueryCloseStatus(hWebSocket, pusStatus, pvReason, dwReasonLength, pdwReasonLengthConsumed) = DLL("WINHTTP.dll", "dword WinHttpWebSocketQueryCloseStatus(void*, void*, void*, dword, void*)")
# 呼び出し: WinHttpWebSocketQueryCloseStatus(hWebSocket, pusStatus, pvReason, dwReasonLength, pdwReasonLengthConsumed)
# hWebSocket : void* -> "void*"
# pusStatus : WORD* out -> "void*"
# pvReason : void* optional, out -> "void*"
# dwReasonLength : DWORD -> "dword"
# pdwReasonLengthConsumed : DWORD* 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)。