UrlGetPartA

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

HRESULT UrlGetPartA(
    LPCSTR pszIn,
    LPSTR pszOut,
    DWORD* pcchOut,
    DWORD dwPart,
    DWORD dwFlags
);

<DllImport("SHLWAPI.dll", CharSet:=CharSet.Ansi, ExactSpelling:=True)>
Public Shared Function UrlGetPartA(
    <MarshalAs(UnmanagedType.LPStr)> pszIn As String,   ' LPCSTR
    <MarshalAs(UnmanagedType.LPStr)> pszOut As System.Text.StringBuilder,   ' LPSTR out
    ByRef pcchOut As UInteger,   ' DWORD* in/out
    dwPart As UInteger,   ' DWORD
    dwFlags As UInteger   ' DWORD
) As Integer
End Function

' pszIn : LPCSTR
' pszOut : LPSTR out
' pcchOut : DWORD* in/out
' dwPart : DWORD
' dwFlags : DWORD
Declare PtrSafe Function UrlGetPartA Lib "shlwapi" ( _
    ByVal pszIn As String, _
    ByVal pszOut As String, _
    ByRef pcchOut As Long, _
    ByVal dwPart As Long, _
    ByVal dwFlags 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

UrlGetPartA = ctypes.windll.shlwapi.UrlGetPartA
UrlGetPartA.restype = ctypes.c_int
UrlGetPartA.argtypes = [
    wintypes.LPCSTR,  # pszIn : LPCSTR
    wintypes.LPSTR,  # pszOut : LPSTR out
    ctypes.POINTER(wintypes.DWORD),  # pcchOut : DWORD* in/out
    wintypes.DWORD,  # dwPart : DWORD
    wintypes.DWORD,  # dwFlags : DWORD
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('SHLWAPI.dll')
UrlGetPartA = Fiddle::Function.new(
  lib['UrlGetPartA'],
  [
    Fiddle::TYPE_VOIDP,  # pszIn : LPCSTR
    Fiddle::TYPE_VOIDP,  # pszOut : LPSTR out
    Fiddle::TYPE_VOIDP,  # pcchOut : DWORD* in/out
    -Fiddle::TYPE_INT,  # dwPart : DWORD
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
  ],
  Fiddle::TYPE_INT)

#[link(name = "shlwapi")]
extern "system" {
    fn UrlGetPartA(
        pszIn: *const u8,  // LPCSTR
        pszOut: *mut u8,  // LPSTR out
        pcchOut: *mut u32,  // DWORD* in/out
        dwPart: u32,  // DWORD
        dwFlags: u32  // DWORD
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("SHLWAPI.dll", CharSet = CharSet.Ansi)]
public static extern int UrlGetPartA([MarshalAs(UnmanagedType.LPStr)] string pszIn, [MarshalAs(UnmanagedType.LPStr)] System.Text.StringBuilder pszOut, ref uint pcchOut, uint dwPart, uint dwFlags);
"@
$api = Add-Type -MemberDefinition $sig -Name 'SHLWAPI_UrlGetPartA' -Namespace Win32 -PassThru
# $api::UrlGetPartA(pszIn, pszOut, pcchOut, dwPart, dwFlags)

#uselib "SHLWAPI.dll"
#func global UrlGetPartA "UrlGetPartA" sptr, sptr, sptr, sptr, sptr
; UrlGetPartA pszIn, varptr(pszOut), varptr(pcchOut), dwPart, dwFlags   ; 戻り値は stat
; pszIn : LPCSTR -> "sptr"
; pszOut : LPSTR out -> "sptr"
; pcchOut : DWORD* in/out -> "sptr"
; dwPart : DWORD -> "sptr"
; dwFlags : DWORD -> "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。

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

var (
	shlwapi = windows.NewLazySystemDLL("SHLWAPI.dll")
	procUrlGetPartA = shlwapi.NewProc("UrlGetPartA")
)

// pszIn (LPCSTR), pszOut (LPSTR out), pcchOut (DWORD* in/out), dwPart (DWORD), dwFlags (DWORD)
r1, _, err := procUrlGetPartA.Call(
	uintptr(unsafe.Pointer(windows.BytePtrFromString(pszIn))),
	uintptr(pszOut),
	uintptr(pcchOut),
	uintptr(dwPart),
	uintptr(dwFlags),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function UrlGetPartA(
  pszIn: PAnsiChar;   // LPCSTR
  pszOut: PAnsiChar;   // LPSTR out
  pcchOut: Pointer;   // DWORD* in/out
  dwPart: DWORD;   // DWORD
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'SHLWAPI.dll' name 'UrlGetPartA';

result := DllCall("SHLWAPI\UrlGetPartA"
    , "AStr", pszIn   ; LPCSTR
    , "Ptr", pszOut   ; LPSTR out
    , "Ptr", pcchOut   ; DWORD* in/out
    , "UInt", dwPart   ; DWORD
    , "UInt", dwFlags   ; DWORD
    , "Int")   ; return: HRESULT

●UrlGetPartA(pszIn, pszOut, pcchOut, dwPart, dwFlags) = DLL("SHLWAPI.dll", "int UrlGetPartA(char*, char*, void*, dword, dword)")
# 呼び出し: UrlGetPartA(pszIn, pszOut, pcchOut, dwPart, dwFlags)
# pszIn : LPCSTR -> "char*"
# pszOut : LPSTR out -> "char*"
# pcchOut : DWORD* in/out -> "void*"
# dwPart : DWORD -> "dword"
# dwFlags : 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)。

const std = @import("std");

extern "shlwapi" fn UrlGetPartA(
    pszIn: [*c]const u8, // LPCSTR
    pszOut: [*c]u8, // LPSTR out
    pcchOut: [*c]u32, // DWORD* in/out
    dwPart: u32, // DWORD
    dwFlags: u32 // DWORD
) callconv(std.os.windows.WINAPI) i32;

proc UrlGetPartA(
    pszIn: cstring,  # LPCSTR
    pszOut: ptr char,  # LPSTR out
    pcchOut: ptr uint32,  # DWORD* in/out
    dwPart: uint32,  # DWORD
    dwFlags: uint32  # DWORD
): int32 {.importc: "UrlGetPartA", stdcall, dynlib: "SHLWAPI.dll".}

pragma(lib, "shlwapi");
extern(Windows)
int UrlGetPartA(
    const(char)* pszIn,   // LPCSTR
    char* pszOut,   // LPSTR out
    uint* pcchOut,   // DWORD* in/out
    uint dwPart,   // DWORD
    uint dwFlags   // DWORD
);

ccall((:UrlGetPartA, "SHLWAPI.dll"), stdcall, Int32,
      (Cstring, Ptr{UInt8}, Ptr{UInt32}, UInt32, UInt32),
      pszIn, pszOut, pcchOut, dwPart, dwFlags)
# pszIn : LPCSTR -> Cstring
# pszOut : LPSTR out -> Ptr{UInt8}
# pcchOut : DWORD* in/out -> Ptr{UInt32}
# dwPart : DWORD -> UInt32
# dwFlags : DWORD -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t UrlGetPartA(
    const char* pszIn,
    char* pszOut,
    uint32_t* pcchOut,
    uint32_t dwPart,
    uint32_t dwFlags);
]]
local shlwapi = ffi.load("shlwapi")
-- shlwapi.UrlGetPartA(pszIn, pszOut, pcchOut, dwPart, dwFlags)
-- pszIn : LPCSTR
-- pszOut : LPSTR out
-- pcchOut : DWORD* in/out
-- dwPart : DWORD
-- dwFlags : DWORD
-- 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('SHLWAPI.dll');
const UrlGetPartA = lib.func('__stdcall', 'UrlGetPartA', 'int32_t', ['str', 'char *', 'uint32_t *', 'uint32_t', 'uint32_t']);
// UrlGetPartA(pszIn, pszOut, pcchOut, dwPart, dwFlags)
// pszIn : LPCSTR -> 'str'
// pszOut : LPSTR out -> 'char *'
// pcchOut : DWORD* in/out -> 'uint32_t *'
// dwPart : DWORD -> 'uint32_t'
// dwFlags : DWORD -> 'uint32_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("SHLWAPI.dll", {
  UrlGetPartA: { parameters: ["buffer", "buffer", "pointer", "u32", "u32"], result: "i32" },
});
// lib.symbols.UrlGetPartA(pszIn, pszOut, pcchOut, dwPart, dwFlags)
// pszIn : LPCSTR -> "buffer"
// pszOut : LPSTR out -> "buffer"
// pcchOut : DWORD* in/out -> "pointer"
// dwPart : DWORD -> "u32"
// dwFlags : DWORD -> "u32"
// 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 UrlGetPartA(
    const char* pszIn,
    char* pszOut,
    uint32_t* pcchOut,
    uint32_t dwPart,
    uint32_t dwFlags);
C, "SHLWAPI.dll");
// $ffi->UrlGetPartA(pszIn, pszOut, pcchOut, dwPart, dwFlags);
// pszIn : LPCSTR
// pszOut : LPSTR out
// pcchOut : DWORD* in/out
// dwPart : DWORD
// dwFlags : DWORD
// 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 Shlwapi extends StdCallLibrary {
    Shlwapi INSTANCE = Native.load("shlwapi", Shlwapi.class, W32APIOptions.ASCII_OPTIONS);
    int UrlGetPartA(
        String pszIn,   // LPCSTR
        byte[] pszOut,   // LPSTR out
        IntByReference pcchOut,   // DWORD* in/out
        int dwPart,   // DWORD
        int dwFlags   // DWORD
    );
}

@[Link("shlwapi")]
lib LibSHLWAPI
  fun UrlGetPartA = UrlGetPartA(
    pszIn : UInt8*,   # LPCSTR
    pszOut : UInt8*,   # LPSTR out
    pcchOut : UInt32*,   # DWORD* in/out
    dwPart : UInt32,   # DWORD
    dwFlags : UInt32   # DWORD
  ) : 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 UrlGetPartANative = Int32 Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Uint32>, Uint32, Uint32);
typedef UrlGetPartADart = int Function(Pointer<Utf8>, Pointer<Utf8>, Pointer<Uint32>, int, int);
final UrlGetPartA = DynamicLibrary.open('SHLWAPI.dll')
    .lookupFunction<UrlGetPartANative, UrlGetPartADart>('UrlGetPartA');
// pszIn : LPCSTR -> Pointer<Utf8>
// pszOut : LPSTR out -> Pointer<Utf8>
// pcchOut : DWORD* in/out -> Pointer<Uint32>
// dwPart : DWORD -> Uint32
// dwFlags : DWORD -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function UrlGetPartA(
  pszIn: PAnsiChar;   // LPCSTR
  pszOut: PAnsiChar;   // LPSTR out
  pcchOut: Pointer;   // DWORD* in/out
  dwPart: DWORD;   // DWORD
  dwFlags: DWORD   // DWORD
): Integer; stdcall;
  external 'SHLWAPI.dll' name 'UrlGetPartA';

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

foreign import stdcall safe "UrlGetPartA"
  c_UrlGetPartA :: CString -> CString -> Ptr Word32 -> Word32 -> Word32 -> IO Int32
-- pszIn : LPCSTR -> CString
-- pszOut : LPSTR out -> CString
-- pcchOut : DWORD* in/out -> Ptr Word32
-- dwPart : DWORD -> Word32
-- dwFlags : DWORD -> Word32
-- 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 urlgetparta =
  foreign "UrlGetPartA"
    (string @-> string @-> (ptr uint32_t) @-> uint32_t @-> uint32_t @-> returning int32_t)
(* pszIn : LPCSTR -> string *)
(* pszOut : LPSTR out -> string *)
(* pcchOut : DWORD* in/out -> (ptr uint32_t) *)
(* dwPart : DWORD -> uint32_t *)
(* dwFlags : DWORD -> uint32_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 shlwapi (t "SHLWAPI.dll"))
(cffi:use-foreign-library shlwapi)

(cffi:defcfun ("UrlGetPartA" url-get-part-a :convention :stdcall) :int32
  (psz-in :string)   ; LPCSTR
  (psz-out :pointer)   ; LPSTR out
  (pcch-out :pointer)   ; DWORD* in/out
  (dw-part :uint32)   ; DWORD
  (dw-flags :uint32))   ; DWORD
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $UrlGetPartA = Win32::API::More->new('SHLWAPI',
    'int UrlGetPartA(LPCSTR pszIn, LPSTR pszOut, LPVOID pcchOut, DWORD dwPart, DWORD dwFlags)');
# my $ret = $UrlGetPartA->Call($pszIn, $pszOut, $pcchOut, $dwPart, $dwFlags);
# pszIn : LPCSTR -> LPCSTR
# pszOut : LPSTR out -> LPSTR
# pcchOut : DWORD* in/out -> LPVOID
# dwPart : DWORD -> DWORD
# dwFlags : DWORD -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。