URLDownloadToFileA

// urlmon.dll  (ANSI / -A)
#include <windows.h>

HRESULT URLDownloadToFileA(
    IUnknown* param0,   // optional
    LPCSTR param1,
    LPCSTR param2,   // optional
    DWORD param3,
    IBindStatusCallback* param4   // optional
);

<DllImport("urlmon.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function URLDownloadToFileA(
    param0 As IntPtr,   ' IUnknown* optional
    <MarshalAs(UnmanagedType.LPStr)> param1 As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> param2 As String,   ' LPCSTR optional
    param3 As UInteger,   ' DWORD
    param4 As IntPtr   ' IBindStatusCallback* optional
) As Integer
End Function

' param0 : IUnknown* optional
' param1 : LPCSTR
' param2 : LPCSTR optional
' param3 : DWORD
' param4 : IBindStatusCallback* optional
Declare PtrSafe Function URLDownloadToFileA Lib "urlmon" ( _
    ByVal param0 As LongPtr, _
    ByVal param1 As String, _
    ByVal param2 As String, _
    ByVal param3 As Long, _
    ByVal param4 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

URLDownloadToFileA = ctypes.windll.urlmon.URLDownloadToFileA
URLDownloadToFileA.restype = ctypes.c_int
URLDownloadToFileA.argtypes = [
    ctypes.c_void_p,  # param0 : IUnknown* optional
    wintypes.LPCSTR,  # param1 : LPCSTR
    wintypes.LPCSTR,  # param2 : LPCSTR optional
    wintypes.DWORD,  # param3 : DWORD
    ctypes.c_void_p,  # param4 : IBindStatusCallback* optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('urlmon.dll')
URLDownloadToFileA = Fiddle::Function.new(
  lib['URLDownloadToFileA'],
  [
    Fiddle::TYPE_VOIDP,  # param0 : IUnknown* optional
    Fiddle::TYPE_VOIDP,  # param1 : LPCSTR
    Fiddle::TYPE_VOIDP,  # param2 : LPCSTR optional
    -Fiddle::TYPE_INT,  # param3 : DWORD
    Fiddle::TYPE_VOIDP,  # param4 : IBindStatusCallback* optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "urlmon")]
extern "system" {
    fn URLDownloadToFileA(
        param0: *mut core::ffi::c_void,  // IUnknown* optional
        param1: *const u8,  // LPCSTR
        param2: *const u8,  // LPCSTR optional
        param3: u32,  // DWORD
        param4: *mut core::ffi::c_void  // IBindStatusCallback* optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("urlmon.dll", CharSet = CharSet.Ansi)]
public static extern int URLDownloadToFileA(IntPtr param0, [MarshalAs(UnmanagedType.LPStr)] string param1, [MarshalAs(UnmanagedType.LPStr)] string param2, uint param3, IntPtr param4);
"@
$api = Add-Type -MemberDefinition $sig -Name 'urlmon_URLDownloadToFileA' -Namespace Win32 -PassThru
# $api::URLDownloadToFileA(param0, param1, param2, param3, param4)

#uselib "urlmon.dll"
#func global URLDownloadToFileA "URLDownloadToFileA" sptr, sptr, sptr, sptr, sptr
; URLDownloadToFileA param0, param1, param2, param3, param4   ; 戻り値は stat
; param0 : IUnknown* optional -> "sptr"
; param1 : LPCSTR -> "sptr"
; param2 : LPCSTR optional -> "sptr"
; param3 : DWORD -> "sptr"
; param4 : IBindStatusCallback* 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 "urlmon.dll"
#cfunc global URLDownloadToFileA "URLDownloadToFileA" sptr, str, str, int, sptr
; res = URLDownloadToFileA(param0, param1, param2, param3, param4)
; param0 : IUnknown* optional -> "sptr"
; param1 : LPCSTR -> "str"
; param2 : LPCSTR optional -> "str"
; param3 : DWORD -> "int"
; param4 : IBindStatusCallback* optional -> "sptr"

; HRESULT URLDownloadToFileA(IUnknown* param0, LPCSTR param1, LPCSTR param2, DWORD param3, IBindStatusCallback* param4)
#uselib "urlmon.dll"
#cfunc global URLDownloadToFileA "URLDownloadToFileA" intptr, str, str, int, intptr
; res = URLDownloadToFileA(param0, param1, param2, param3, param4)
; param0 : IUnknown* optional -> "intptr"
; param1 : LPCSTR -> "str"
; param2 : LPCSTR optional -> "str"
; param3 : DWORD -> "int"
; param4 : IBindStatusCallback* optional -> "intptr"

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

var (
	urlmon = windows.NewLazySystemDLL("urlmon.dll")
	procURLDownloadToFileA = urlmon.NewProc("URLDownloadToFileA")
)

// param0 (IUnknown* optional), param1 (LPCSTR), param2 (LPCSTR optional), param3 (DWORD), param4 (IBindStatusCallback* optional)
r1, _, err := procURLDownloadToFileA.Call(
	uintptr(param0),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(param1))),
	uintptr(unsafe.Pointer(windows.BytePtrFromString(param2))),
	uintptr(param3),
	uintptr(param4),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function URLDownloadToFileA(
  param0: Pointer;   // IUnknown* optional
  param1: PAnsiChar;   // LPCSTR
  param2: PAnsiChar;   // LPCSTR optional
  param3: DWORD;   // DWORD
  param4: Pointer   // IBindStatusCallback* optional
): Integer; stdcall;
  external 'urlmon.dll' name 'URLDownloadToFileA';

result := DllCall("urlmon\URLDownloadToFileA"
    , "Ptr", param0   ; IUnknown* optional
    , "AStr", param1   ; LPCSTR
    , "AStr", param2   ; LPCSTR optional
    , "UInt", param3   ; DWORD
    , "Ptr", param4   ; IBindStatusCallback* optional
    , "Int")   ; return: HRESULT

●URLDownloadToFileA(param0, param1, param2, param3, param4) = DLL("urlmon.dll", "int URLDownloadToFileA(void*, char*, char*, dword, void*)")
# 呼び出し: URLDownloadToFileA(param0, param1, param2, param3, param4)
# param0 : IUnknown* optional -> "void*"
# param1 : LPCSTR -> "char*"
# param2 : LPCSTR optional -> "char*"
# param3 : DWORD -> "dword"
# param4 : IBindStatusCallback* 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)。

const std = @import("std");

extern "urlmon" fn URLDownloadToFileA(
    param0: ?*anyopaque, // IUnknown* optional
    param1: [*c]const u8, // LPCSTR
    param2: [*c]const u8, // LPCSTR optional
    param3: u32, // DWORD
    param4: ?*anyopaque // IBindStatusCallback* optional
) callconv(std.os.windows.WINAPI) i32;

proc URLDownloadToFileA(
    param0: pointer,  # IUnknown* optional
    param1: cstring,  # LPCSTR
    param2: cstring,  # LPCSTR optional
    param3: uint32,  # DWORD
    param4: pointer  # IBindStatusCallback* optional
): int32 {.importc: "URLDownloadToFileA", stdcall, dynlib: "urlmon.dll".}

pragma(lib, "urlmon");
extern(Windows)
int URLDownloadToFileA(
    void* param0,   // IUnknown* optional
    const(char)* param1,   // LPCSTR
    const(char)* param2,   // LPCSTR optional
    uint param3,   // DWORD
    void* param4   // IBindStatusCallback* optional
);

ccall((:URLDownloadToFileA, "urlmon.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Cstring, Cstring, UInt32, Ptr{Cvoid}),
      param0, param1, param2, param3, param4)
# param0 : IUnknown* optional -> Ptr{Cvoid}
# param1 : LPCSTR -> Cstring
# param2 : LPCSTR optional -> Cstring
# param3 : DWORD -> UInt32
# param4 : IBindStatusCallback* optional -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t URLDownloadToFileA(
    void* param0,
    const char* param1,
    const char* param2,
    uint32_t param3,
    void* param4);
]]
local urlmon = ffi.load("urlmon")
-- urlmon.URLDownloadToFileA(param0, param1, param2, param3, param4)
-- param0 : IUnknown* optional
-- param1 : LPCSTR
-- param2 : LPCSTR optional
-- param3 : DWORD
-- param4 : IBindStatusCallback* optional
-- 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('urlmon.dll');
const URLDownloadToFileA = lib.func('__stdcall', 'URLDownloadToFileA', 'int32_t', ['void *', 'str', 'str', 'uint32_t', 'void *']);
// URLDownloadToFileA(param0, param1, param2, param3, param4)
// param0 : IUnknown* optional -> 'void *'
// param1 : LPCSTR -> 'str'
// param2 : LPCSTR optional -> 'str'
// param3 : DWORD -> 'uint32_t'
// param4 : IBindStatusCallback* optional -> 'void *'
// 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("urlmon.dll", {
  URLDownloadToFileA: { parameters: ["pointer", "buffer", "buffer", "u32", "pointer"], result: "i32" },
});
// lib.symbols.URLDownloadToFileA(param0, param1, param2, param3, param4)
// param0 : IUnknown* optional -> "pointer"
// param1 : LPCSTR -> "buffer"
// param2 : LPCSTR optional -> "buffer"
// param3 : DWORD -> "u32"
// param4 : IBindStatusCallback* optional -> "pointer"
// 文字列は "buffer"。ANSI(-A) は new TextEncoder() で UTF-8/ANSI バイト列(末尾に \x00)を渡す。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。

<?php
$ffi = FFI::cdef(<<<C
int32_t URLDownloadToFileA(
    void* param0,
    const char* param1,
    const char* param2,
    uint32_t param3,
    void* param4);
C, "urlmon.dll");
// $ffi->URLDownloadToFileA(param0, param1, param2, param3, param4);
// param0 : IUnknown* optional
// param1 : LPCSTR
// param2 : LPCSTR optional
// param3 : DWORD
// param4 : IBindStatusCallback* optional
// 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 Urlmon extends StdCallLibrary {
    Urlmon INSTANCE = Native.load("urlmon", Urlmon.class, W32APIOptions.ASCII_OPTIONS);
    int URLDownloadToFileA(
        Pointer param0,   // IUnknown* optional
        String param1,   // LPCSTR
        String param2,   // LPCSTR optional
        int param3,   // DWORD
        Pointer param4   // IBindStatusCallback* optional
    );
}

@[Link("urlmon")]
lib Liburlmon
  fun URLDownloadToFileA = URLDownloadToFileA(
    param0 : Void*,   # IUnknown* optional
    param1 : UInt8*,   # LPCSTR
    param2 : UInt8*,   # LPCSTR optional
    param3 : UInt32,   # DWORD
    param4 : Void*   # IBindStatusCallback* optional
  ) : 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 URLDownloadToFileANative = Int32 Function(Pointer<Void>, Pointer<Utf8>, Pointer<Utf8>, Uint32, Pointer<Void>);
typedef URLDownloadToFileADart = int Function(Pointer<Void>, Pointer<Utf8>, Pointer<Utf8>, int, Pointer<Void>);
final URLDownloadToFileA = DynamicLibrary.open('urlmon.dll')
    .lookupFunction<URLDownloadToFileANative, URLDownloadToFileADart>('URLDownloadToFileA');
// param0 : IUnknown* optional -> Pointer<Void>
// param1 : LPCSTR -> Pointer<Utf8>
// param2 : LPCSTR optional -> Pointer<Utf8>
// param3 : DWORD -> Uint32
// param4 : IBindStatusCallback* optional -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function URLDownloadToFileA(
  param0: Pointer;   // IUnknown* optional
  param1: PAnsiChar;   // LPCSTR
  param2: PAnsiChar;   // LPCSTR optional
  param3: DWORD;   // DWORD
  param4: Pointer   // IBindStatusCallback* optional
): Integer; stdcall;
  external 'urlmon.dll' name 'URLDownloadToFileA';

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

foreign import stdcall safe "URLDownloadToFileA"
  c_URLDownloadToFileA :: Ptr () -> CString -> CString -> Word32 -> Ptr () -> IO Int32
-- param0 : IUnknown* optional -> Ptr ()
-- param1 : LPCSTR -> CString
-- param2 : LPCSTR optional -> CString
-- param3 : DWORD -> Word32
-- param4 : IBindStatusCallback* optional -> Ptr ()
-- 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 urldownloadtofilea =
  foreign "URLDownloadToFileA"
    ((ptr void) @-> string @-> string @-> uint32_t @-> (ptr void) @-> returning int32_t)
(* param0 : IUnknown* optional -> (ptr void) *)
(* param1 : LPCSTR -> string *)
(* param2 : LPCSTR optional -> string *)
(* param3 : DWORD -> uint32_t *)
(* param4 : IBindStatusCallback* optional -> (ptr void) *)
(* 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 urlmon (t "urlmon.dll"))
(cffi:use-foreign-library urlmon)

(cffi:defcfun ("URLDownloadToFileA" urldownload-to-file-a :convention :stdcall) :int32
  (param0 :pointer)   ; IUnknown* optional
  (param1 :string)   ; LPCSTR
  (param2 :string)   ; LPCSTR optional
  (param3 :uint32)   ; DWORD
  (param4 :pointer))   ; IBindStatusCallback* optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $URLDownloadToFileA = Win32::API::More->new('urlmon',
    'int URLDownloadToFileA(LPVOID param0, LPCSTR param1, LPCSTR param2, DWORD param3, LPVOID param4)');
# my $ret = $URLDownloadToFileA->Call($param0, $param1, $param2, $param3, $param4);
# param0 : IUnknown* optional -> LPVOID
# param1 : LPCSTR -> LPCSTR
# param2 : LPCSTR optional -> LPCSTR
# param3 : DWORD -> DWORD
# param4 : IBindStatusCallback* optional -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。