WinHttpSendRequest

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

BOOL WinHttpSendRequest(
    void* hRequest,
    LPCWSTR lpszHeaders,   // optional
    DWORD dwHeadersLength,
    void* lpOptional,   // optional
    DWORD dwOptionalLength,
    DWORD dwTotalLength,
    UINT_PTR dwContext
);

<DllImport("WINHTTP.dll", SetLastError:=True, ExactSpelling:=True)>
Public Shared Function WinHttpSendRequest(
    hRequest As IntPtr,   ' void* in/out
    <MarshalAs(UnmanagedType.LPWStr)> lpszHeaders As String,   ' LPCWSTR optional
    dwHeadersLength As UInteger,   ' DWORD
    lpOptional As IntPtr,   ' void* optional
    dwOptionalLength As UInteger,   ' DWORD
    dwTotalLength As UInteger,   ' DWORD
    dwContext As UIntPtr   ' UINT_PTR
) As <MarshalAs(UnmanagedType.Bool)> Boolean
End Function

' hRequest : void* in/out
' lpszHeaders : LPCWSTR optional
' dwHeadersLength : DWORD
' lpOptional : void* optional
' dwOptionalLength : DWORD
' dwTotalLength : DWORD
' dwContext : UINT_PTR
Declare PtrSafe Function WinHttpSendRequest Lib "winhttp" ( _
    ByVal hRequest As LongPtr, _
    ByVal lpszHeaders As LongPtr, _
    ByVal dwHeadersLength As Long, _
    ByVal lpOptional As LongPtr, _
    ByVal dwOptionalLength As Long, _
    ByVal dwTotalLength As Long, _
    ByVal dwContext 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

WinHttpSendRequest = ctypes.windll.winhttp.WinHttpSendRequest
WinHttpSendRequest.restype = wintypes.BOOL
WinHttpSendRequest.argtypes = [
    ctypes.POINTER(None),  # hRequest : void* in/out
    wintypes.LPCWSTR,  # lpszHeaders : LPCWSTR optional
    wintypes.DWORD,  # dwHeadersLength : DWORD
    ctypes.POINTER(None),  # lpOptional : void* optional
    wintypes.DWORD,  # dwOptionalLength : DWORD
    wintypes.DWORD,  # dwTotalLength : DWORD
    ctypes.c_size_t,  # dwContext : UINT_PTR
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WINHTTP.dll')
WinHttpSendRequest = Fiddle::Function.new(
  lib['WinHttpSendRequest'],
  [
    Fiddle::TYPE_VOIDP,  # hRequest : void* in/out
    Fiddle::TYPE_VOIDP,  # lpszHeaders : LPCWSTR optional
    -Fiddle::TYPE_INT,  # dwHeadersLength : DWORD
    Fiddle::TYPE_VOIDP,  # lpOptional : void* optional
    -Fiddle::TYPE_INT,  # dwOptionalLength : DWORD
    -Fiddle::TYPE_INT,  # dwTotalLength : DWORD
    Fiddle::TYPE_UINTPTR_T,  # dwContext : UINT_PTR
  ],
  Fiddle::TYPE_INT)

#[link(name = "winhttp")]
extern "system" {
    fn WinHttpSendRequest(
        hRequest: *mut (),  // void* in/out
        lpszHeaders: *const u16,  // LPCWSTR optional
        dwHeadersLength: u32,  // DWORD
        lpOptional: *mut (),  // void* optional
        dwOptionalLength: u32,  // DWORD
        dwTotalLength: u32,  // DWORD
        dwContext: usize  // UINT_PTR
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WINHTTP.dll", SetLastError = true)]
public static extern bool WinHttpSendRequest(IntPtr hRequest, [MarshalAs(UnmanagedType.LPWStr)] string lpszHeaders, uint dwHeadersLength, IntPtr lpOptional, uint dwOptionalLength, uint dwTotalLength, UIntPtr dwContext);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WINHTTP_WinHttpSendRequest' -Namespace Win32 -PassThru
# $api::WinHttpSendRequest(hRequest, lpszHeaders, dwHeadersLength, lpOptional, dwOptionalLength, dwTotalLength, dwContext)

#uselib "WINHTTP.dll"
#func global WinHttpSendRequest "WinHttpSendRequest" sptr, sptr, sptr, sptr, sptr, sptr, sptr
; WinHttpSendRequest hRequest, lpszHeaders, dwHeadersLength, lpOptional, dwOptionalLength, dwTotalLength, dwContext   ; 戻り値は stat
; hRequest : void* in/out -> "sptr"
; lpszHeaders : LPCWSTR optional -> "sptr"
; dwHeadersLength : DWORD -> "sptr"
; lpOptional : void* optional -> "sptr"
; dwOptionalLength : DWORD -> "sptr"
; dwTotalLength : DWORD -> "sptr"
; dwContext : UINT_PTR -> "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 WinHttpSendRequest "WinHttpSendRequest" sptr, wstr, int, sptr, int, int, sptr
; res = WinHttpSendRequest(hRequest, lpszHeaders, dwHeadersLength, lpOptional, dwOptionalLength, dwTotalLength, dwContext)
; hRequest : void* in/out -> "sptr"
; lpszHeaders : LPCWSTR optional -> "wstr"
; dwHeadersLength : DWORD -> "int"
; lpOptional : void* optional -> "sptr"
; dwOptionalLength : DWORD -> "int"
; dwTotalLength : DWORD -> "int"
; dwContext : UINT_PTR -> "sptr"

; BOOL WinHttpSendRequest(void* hRequest, LPCWSTR lpszHeaders, DWORD dwHeadersLength, void* lpOptional, DWORD dwOptionalLength, DWORD dwTotalLength, UINT_PTR dwContext)
#uselib "WINHTTP.dll"
#cfunc global WinHttpSendRequest "WinHttpSendRequest" intptr, wstr, int, intptr, int, int, intptr
; res = WinHttpSendRequest(hRequest, lpszHeaders, dwHeadersLength, lpOptional, dwOptionalLength, dwTotalLength, dwContext)
; hRequest : void* in/out -> "intptr"
; lpszHeaders : LPCWSTR optional -> "wstr"
; dwHeadersLength : DWORD -> "int"
; lpOptional : void* optional -> "intptr"
; dwOptionalLength : DWORD -> "int"
; dwTotalLength : DWORD -> "int"
; dwContext : UINT_PTR -> "intptr"

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

var (
	winhttp = windows.NewLazySystemDLL("WINHTTP.dll")
	procWinHttpSendRequest = winhttp.NewProc("WinHttpSendRequest")
)

// hRequest (void* in/out), lpszHeaders (LPCWSTR optional), dwHeadersLength (DWORD), lpOptional (void* optional), dwOptionalLength (DWORD), dwTotalLength (DWORD), dwContext (UINT_PTR)
r1, _, err := procWinHttpSendRequest.Call(
	uintptr(hRequest),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(lpszHeaders))),
	uintptr(dwHeadersLength),
	uintptr(lpOptional),
	uintptr(dwOptionalLength),
	uintptr(dwTotalLength),
	uintptr(dwContext),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function WinHttpSendRequest(
  hRequest: Pointer;   // void* in/out
  lpszHeaders: PWideChar;   // LPCWSTR optional
  dwHeadersLength: DWORD;   // DWORD
  lpOptional: Pointer;   // void* optional
  dwOptionalLength: DWORD;   // DWORD
  dwTotalLength: DWORD;   // DWORD
  dwContext: NativeUInt   // UINT_PTR
): BOOL; stdcall;
  external 'WINHTTP.dll' name 'WinHttpSendRequest';

result := DllCall("WINHTTP\WinHttpSendRequest"
    , "Ptr", hRequest   ; void* in/out
    , "WStr", lpszHeaders   ; LPCWSTR optional
    , "UInt", dwHeadersLength   ; DWORD
    , "Ptr", lpOptional   ; void* optional
    , "UInt", dwOptionalLength   ; DWORD
    , "UInt", dwTotalLength   ; DWORD
    , "UPtr", dwContext   ; UINT_PTR
    , "Int")   ; return: BOOL

●WinHttpSendRequest(hRequest, lpszHeaders, dwHeadersLength, lpOptional, dwOptionalLength, dwTotalLength, dwContext) = DLL("WINHTTP.dll", "bool WinHttpSendRequest(void*, char*, dword, void*, dword, dword, int)")
# 呼び出し: WinHttpSendRequest(hRequest, lpszHeaders, dwHeadersLength, lpOptional, dwOptionalLength, dwTotalLength, dwContext)
# hRequest : void* in/out -> "void*"
# lpszHeaders : LPCWSTR optional -> "char*"
# dwHeadersLength : DWORD -> "dword"
# lpOptional : void* optional -> "void*"
# dwOptionalLength : DWORD -> "dword"
# dwTotalLength : DWORD -> "dword"
# dwContext : UINT_PTR -> "int"
# 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)。

const std = @import("std");

extern "winhttp" fn WinHttpSendRequest(
    hRequest: ?*anyopaque, // void* in/out
    lpszHeaders: [*c]const u16, // LPCWSTR optional
    dwHeadersLength: u32, // DWORD
    lpOptional: ?*anyopaque, // void* optional
    dwOptionalLength: u32, // DWORD
    dwTotalLength: u32, // DWORD
    dwContext: usize // UINT_PTR
) callconv(std.os.windows.WINAPI) i32;

proc WinHttpSendRequest(
    hRequest: pointer,  # void* in/out
    lpszHeaders: WideCString,  # LPCWSTR optional
    dwHeadersLength: uint32,  # DWORD
    lpOptional: pointer,  # void* optional
    dwOptionalLength: uint32,  # DWORD
    dwTotalLength: uint32,  # DWORD
    dwContext: uint  # UINT_PTR
): int32 {.importc: "WinHttpSendRequest", stdcall, dynlib: "WINHTTP.dll".}

pragma(lib, "winhttp");
extern(Windows)
int WinHttpSendRequest(
    void* hRequest,   // void* in/out
    const(wchar)* lpszHeaders,   // LPCWSTR optional
    uint dwHeadersLength,   // DWORD
    void* lpOptional,   // void* optional
    uint dwOptionalLength,   // DWORD
    uint dwTotalLength,   // DWORD
    size_t dwContext   // UINT_PTR
);

ccall((:WinHttpSendRequest, "WINHTTP.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Cwstring, UInt32, Ptr{Cvoid}, UInt32, UInt32, Csize_t),
      hRequest, lpszHeaders, dwHeadersLength, lpOptional, dwOptionalLength, dwTotalLength, dwContext)
# hRequest : void* in/out -> Ptr{Cvoid}
# lpszHeaders : LPCWSTR optional -> Cwstring
# dwHeadersLength : DWORD -> UInt32
# lpOptional : void* optional -> Ptr{Cvoid}
# dwOptionalLength : DWORD -> UInt32
# dwTotalLength : DWORD -> UInt32
# dwContext : UINT_PTR -> Csize_t
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t WinHttpSendRequest(
    void* hRequest,
    const uint16_t* lpszHeaders,
    uint32_t dwHeadersLength,
    void* lpOptional,
    uint32_t dwOptionalLength,
    uint32_t dwTotalLength,
    uintptr_t dwContext);
]]
local winhttp = ffi.load("winhttp")
-- winhttp.WinHttpSendRequest(hRequest, lpszHeaders, dwHeadersLength, lpOptional, dwOptionalLength, dwTotalLength, dwContext)
-- hRequest : void* in/out
-- lpszHeaders : LPCWSTR optional
-- dwHeadersLength : DWORD
-- lpOptional : void* optional
-- dwOptionalLength : DWORD
-- dwTotalLength : DWORD
-- dwContext : UINT_PTR
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。

const koffi = require('koffi');
const lib = koffi.load('WINHTTP.dll');
const WinHttpSendRequest = lib.func('__stdcall', 'WinHttpSendRequest', 'int32_t', ['void *', 'str16', 'uint32_t', 'void *', 'uint32_t', 'uint32_t', 'uintptr_t']);
// WinHttpSendRequest(hRequest, lpszHeaders, dwHeadersLength, lpOptional, dwOptionalLength, dwTotalLength, dwContext)
// hRequest : void* in/out -> 'void *'
// lpszHeaders : LPCWSTR optional -> 'str16'
// dwHeadersLength : DWORD -> 'uint32_t'
// lpOptional : void* optional -> 'void *'
// dwOptionalLength : DWORD -> 'uint32_t'
// dwTotalLength : DWORD -> 'uint32_t'
// dwContext : UINT_PTR -> 'uintptr_t'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。

const lib = Deno.dlopen("WINHTTP.dll", {
  WinHttpSendRequest: { parameters: ["pointer", "buffer", "u32", "pointer", "u32", "u32", "usize"], result: "i32" },
});
// lib.symbols.WinHttpSendRequest(hRequest, lpszHeaders, dwHeadersLength, lpOptional, dwOptionalLength, dwTotalLength, dwContext)
// hRequest : void* in/out -> "pointer"
// lpszHeaders : LPCWSTR optional -> "buffer"
// dwHeadersLength : DWORD -> "u32"
// lpOptional : void* optional -> "pointer"
// dwOptionalLength : DWORD -> "u32"
// dwTotalLength : DWORD -> "u32"
// dwContext : UINT_PTR -> "usize"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t WinHttpSendRequest(
    void* hRequest,
    const uint16_t* lpszHeaders,
    uint32_t dwHeadersLength,
    void* lpOptional,
    uint32_t dwOptionalLength,
    uint32_t dwTotalLength,
    size_t dwContext);
C, "WINHTTP.dll");
// $ffi->WinHttpSendRequest(hRequest, lpszHeaders, dwHeadersLength, lpOptional, dwOptionalLength, dwTotalLength, dwContext);
// hRequest : void* in/out
// lpszHeaders : LPCWSTR optional
// dwHeadersLength : DWORD
// lpOptional : void* optional
// dwOptionalLength : DWORD
// dwTotalLength : DWORD
// dwContext : UINT_PTR
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。

import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

public interface Winhttp extends StdCallLibrary {
    Winhttp INSTANCE = Native.load("winhttp", Winhttp.class);
    boolean WinHttpSendRequest(
        Pointer hRequest,   // void* in/out
        WString lpszHeaders,   // LPCWSTR optional
        int dwHeadersLength,   // DWORD
        Pointer lpOptional,   // void* optional
        int dwOptionalLength,   // DWORD
        int dwTotalLength,   // DWORD
        long dwContext   // UINT_PTR
    );
}

@[Link("winhttp")]
lib LibWINHTTP
  fun WinHttpSendRequest = WinHttpSendRequest(
    hRequest : Void*,   # void* in/out
    lpszHeaders : UInt16*,   # LPCWSTR optional
    dwHeadersLength : UInt32,   # DWORD
    lpOptional : Void*,   # void* optional
    dwOptionalLength : UInt32,   # DWORD
    dwTotalLength : UInt32,   # DWORD
    dwContext : LibC::SizeT   # UINT_PTR
  ) : Int32
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。

import 'dart:ffi';
import 'package:ffi/ffi.dart';

typedef WinHttpSendRequestNative = Int32 Function(Pointer<Void>, Pointer<Utf16>, Uint32, Pointer<Void>, Uint32, Uint32, UintPtr);
typedef WinHttpSendRequestDart = int Function(Pointer<Void>, Pointer<Utf16>, int, Pointer<Void>, int, int, int);
final WinHttpSendRequest = DynamicLibrary.open('WINHTTP.dll')
    .lookupFunction<WinHttpSendRequestNative, WinHttpSendRequestDart>('WinHttpSendRequest');
// hRequest : void* in/out -> Pointer<Void>
// lpszHeaders : LPCWSTR optional -> Pointer<Utf16>
// dwHeadersLength : DWORD -> Uint32
// lpOptional : void* optional -> Pointer<Void>
// dwOptionalLength : DWORD -> Uint32
// dwTotalLength : DWORD -> Uint32
// dwContext : UINT_PTR -> UintPtr
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WinHttpSendRequest(
  hRequest: Pointer;   // void* in/out
  lpszHeaders: PWideChar;   // LPCWSTR optional
  dwHeadersLength: DWORD;   // DWORD
  lpOptional: Pointer;   // void* optional
  dwOptionalLength: DWORD;   // DWORD
  dwTotalLength: DWORD;   // DWORD
  dwContext: NativeUInt   // UINT_PTR
): BOOL; stdcall;
  external 'WINHTTP.dll' name 'WinHttpSendRequest';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "WinHttpSendRequest"
  c_WinHttpSendRequest :: Ptr () -> CWString -> Word32 -> Ptr () -> Word32 -> Word32 -> CUIntPtr -> IO CInt
-- hRequest : void* in/out -> Ptr ()
-- lpszHeaders : LPCWSTR optional -> CWString
-- dwHeadersLength : DWORD -> Word32
-- lpOptional : void* optional -> Ptr ()
-- dwOptionalLength : DWORD -> Word32
-- dwTotalLength : DWORD -> Word32
-- dwContext : UINT_PTR -> CUIntPtr
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。

open Ctypes
open Foreign

let winhttpsendrequest =
  foreign "WinHttpSendRequest"
    ((ptr void) @-> (ptr uint16_t) @-> uint32_t @-> (ptr void) @-> uint32_t @-> uint32_t @-> size_t @-> returning int32_t)
(* hRequest : void* in/out -> (ptr void) *)
(* lpszHeaders : LPCWSTR optional -> (ptr uint16_t) *)
(* dwHeadersLength : DWORD -> uint32_t *)
(* lpOptional : void* optional -> (ptr void) *)
(* dwOptionalLength : DWORD -> uint32_t *)
(* dwTotalLength : DWORD -> uint32_t *)
(* dwContext : UINT_PTR -> size_t *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)

(cffi:define-foreign-library winhttp (t "WINHTTP.dll"))
(cffi:use-foreign-library winhttp)

(cffi:defcfun ("WinHttpSendRequest" win-http-send-request :convention :stdcall) :int32
  (h-request :pointer)   ; void* in/out
  (lpsz-headers (:string :encoding :utf-16le))   ; LPCWSTR optional
  (dw-headers-length :uint32)   ; DWORD
  (lp-optional :pointer)   ; void* optional
  (dw-optional-length :uint32)   ; DWORD
  (dw-total-length :uint32)   ; DWORD
  (dw-context :uint64))   ; UINT_PTR
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WinHttpSendRequest = Win32::API::More->new('WINHTTP',
    'BOOL WinHttpSendRequest(LPVOID hRequest, LPCWSTR lpszHeaders, DWORD dwHeadersLength, LPVOID lpOptional, DWORD dwOptionalLength, DWORD dwTotalLength, WPARAM dwContext)');
# my $ret = $WinHttpSendRequest->Call($hRequest, $lpszHeaders, $dwHeadersLength, $lpOptional, $dwOptionalLength, $dwTotalLength, $dwContext);
# hRequest : void* in/out -> LPVOID
# lpszHeaders : LPCWSTR optional -> LPCWSTR
# dwHeadersLength : DWORD -> DWORD
# lpOptional : void* optional -> LPVOID
# dwOptionalLength : DWORD -> DWORD
# dwTotalLength : DWORD -> DWORD
# dwContext : UINT_PTR -> WPARAM
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。