WebSocketCompleteAction

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

void WebSocketCompleteAction(
    WEB_SOCKET_HANDLE hWebSocket,
    void* pvActionContext,
    DWORD ulBytesTransferred
);

<DllImport("websocket.dll", ExactSpelling:=True)>
Public Shared Sub WebSocketCompleteAction(
    hWebSocket As IntPtr,   ' WEB_SOCKET_HANDLE
    pvActionContext As IntPtr,   ' void*
    ulBytesTransferred As UInteger   ' DWORD
)
End Sub

' hWebSocket : WEB_SOCKET_HANDLE
' pvActionContext : void*
' ulBytesTransferred : DWORD
Declare PtrSafe Sub WebSocketCompleteAction Lib "websocket" ( _
    ByVal hWebSocket As LongPtr, _
    ByVal pvActionContext As LongPtr, _
    ByVal ulBytesTransferred As Long)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

WebSocketCompleteAction = ctypes.windll.websocket.WebSocketCompleteAction
WebSocketCompleteAction.restype = None
WebSocketCompleteAction.argtypes = [
    wintypes.HANDLE,  # hWebSocket : WEB_SOCKET_HANDLE
    ctypes.POINTER(None),  # pvActionContext : void*
    wintypes.DWORD,  # ulBytesTransferred : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('websocket.dll')
WebSocketCompleteAction = Fiddle::Function.new(
  lib['WebSocketCompleteAction'],
  [
    Fiddle::TYPE_VOIDP,  # hWebSocket : WEB_SOCKET_HANDLE
    Fiddle::TYPE_VOIDP,  # pvActionContext : void*
    -Fiddle::TYPE_INT,  # ulBytesTransferred : DWORD
  ],
  Fiddle::TYPE_VOID)

#[link(name = "websocket")]
extern "system" {
    fn WebSocketCompleteAction(
        hWebSocket: *mut core::ffi::c_void,  // WEB_SOCKET_HANDLE
        pvActionContext: *mut (),  // void*
        ulBytesTransferred: u32  // DWORD
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("websocket.dll")]
public static extern void WebSocketCompleteAction(IntPtr hWebSocket, IntPtr pvActionContext, uint ulBytesTransferred);
"@
$api = Add-Type -MemberDefinition $sig -Name 'websocket_WebSocketCompleteAction' -Namespace Win32 -PassThru
# $api::WebSocketCompleteAction(hWebSocket, pvActionContext, ulBytesTransferred)

#uselib "websocket.dll"
#func global WebSocketCompleteAction "WebSocketCompleteAction" sptr, sptr, sptr
; WebSocketCompleteAction hWebSocket, pvActionContext, ulBytesTransferred
; hWebSocket : WEB_SOCKET_HANDLE -> "sptr"
; pvActionContext : void* -> "sptr"
; ulBytesTransferred : DWORD -> "sptr"

#uselib "websocket.dll"
#func global WebSocketCompleteAction "WebSocketCompleteAction" sptr, sptr, int
; WebSocketCompleteAction hWebSocket, pvActionContext, ulBytesTransferred
; hWebSocket : WEB_SOCKET_HANDLE -> "sptr"
; pvActionContext : void* -> "sptr"
; ulBytesTransferred : DWORD -> "int"

; void WebSocketCompleteAction(WEB_SOCKET_HANDLE hWebSocket, void* pvActionContext, DWORD ulBytesTransferred)
#uselib "websocket.dll"
#func global WebSocketCompleteAction "WebSocketCompleteAction" intptr, intptr, int
; WebSocketCompleteAction hWebSocket, pvActionContext, ulBytesTransferred
; hWebSocket : WEB_SOCKET_HANDLE -> "intptr"
; pvActionContext : void* -> "intptr"
; ulBytesTransferred : DWORD -> "int"

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

var (
	websocket = windows.NewLazySystemDLL("websocket.dll")
	procWebSocketCompleteAction = websocket.NewProc("WebSocketCompleteAction")
)

// hWebSocket (WEB_SOCKET_HANDLE), pvActionContext (void*), ulBytesTransferred (DWORD)
r1, _, err := procWebSocketCompleteAction.Call(
	uintptr(hWebSocket),
	uintptr(pvActionContext),
	uintptr(ulBytesTransferred),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // void

procedure WebSocketCompleteAction(
  hWebSocket: THandle;   // WEB_SOCKET_HANDLE
  pvActionContext: Pointer;   // void*
  ulBytesTransferred: DWORD   // DWORD
); stdcall;
  external 'websocket.dll' name 'WebSocketCompleteAction';

result := DllCall("websocket\WebSocketCompleteAction"
    , "Ptr", hWebSocket   ; WEB_SOCKET_HANDLE
    , "Ptr", pvActionContext   ; void*
    , "UInt", ulBytesTransferred   ; DWORD
    , "Int")   ; return: void

●WebSocketCompleteAction(hWebSocket, pvActionContext, ulBytesTransferred) = DLL("websocket.dll", "int WebSocketCompleteAction(void*, void*, dword)")
# 呼び出し: WebSocketCompleteAction(hWebSocket, pvActionContext, ulBytesTransferred)
# hWebSocket : WEB_SOCKET_HANDLE -> "void*"
# pvActionContext : void* -> "void*"
# ulBytesTransferred : DWORD -> "dword"
# 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)。