InternetCreateUrlW

// WININET.dll  (Unicode / -W)
#include <windows.h>

BOOL InternetCreateUrlW(
    URL_COMPONENTSW* lpUrlComponents,
    DWORD dwFlags,
    LPWSTR lpszUrl,   // optional
    DWORD* lpdwUrlLength
);

<DllImport("WININET.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)>
Public Shared Function InternetCreateUrlW(
    lpUrlComponents As IntPtr,   ' URL_COMPONENTSW*
    dwFlags As UInteger,   ' DWORD
    <MarshalAs(UnmanagedType.LPWStr)> lpszUrl As System.Text.StringBuilder,   ' LPWSTR optional, out
    ByRef lpdwUrlLength As UInteger   ' DWORD* in/out
) As Boolean
End Function

' lpUrlComponents : URL_COMPONENTSW*
' dwFlags : DWORD
' lpszUrl : LPWSTR optional, out
' lpdwUrlLength : DWORD* in/out
Declare PtrSafe Function InternetCreateUrlW Lib "wininet" ( _
    ByVal lpUrlComponents As LongPtr, _
    ByVal dwFlags As Long, _
    ByVal lpszUrl As LongPtr, _
    ByRef lpdwUrlLength As Long) As Long
' Unicode(W): 文字列は ByVal As LongPtr とし StrPtr(unicodeStr) を渡す
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

InternetCreateUrlW = ctypes.windll.wininet.InternetCreateUrlW
InternetCreateUrlW.restype = wintypes.BOOL
InternetCreateUrlW.argtypes = [
    ctypes.c_void_p,  # lpUrlComponents : URL_COMPONENTSW*
    wintypes.DWORD,  # dwFlags : DWORD
    wintypes.LPWSTR,  # lpszUrl : LPWSTR optional, out
    ctypes.POINTER(wintypes.DWORD),  # lpdwUrlLength : DWORD* in/out
]
# GetLastError: use ctypes.GetLastError() (or ctypes.WinDLL(use_last_error=True))

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WININET.dll')
InternetCreateUrlW = Fiddle::Function.new(
  lib['InternetCreateUrlW'],
  [
    Fiddle::TYPE_VOIDP,  # lpUrlComponents : URL_COMPONENTSW*
    -Fiddle::TYPE_INT,  # dwFlags : DWORD
    Fiddle::TYPE_VOIDP,  # lpszUrl : LPWSTR optional, out
    Fiddle::TYPE_VOIDP,  # lpdwUrlLength : DWORD* in/out
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "wininet")]
extern "system" {
    fn InternetCreateUrlW(
        lpUrlComponents: *mut URL_COMPONENTSW,  // URL_COMPONENTSW*
        dwFlags: u32,  // DWORD
        lpszUrl: *mut u16,  // LPWSTR optional, out
        lpdwUrlLength: *mut u32  // DWORD* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[return: MarshalAs(UnmanagedType.Bool)]
[DllImport("WININET.dll", CharSet = CharSet.Unicode, SetLastError = true)]
public static extern bool InternetCreateUrlW(IntPtr lpUrlComponents, uint dwFlags, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpszUrl, ref uint lpdwUrlLength);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WININET_InternetCreateUrlW' -Namespace Win32 -PassThru
# $api::InternetCreateUrlW(lpUrlComponents, dwFlags, lpszUrl, lpdwUrlLength)

#uselib "WININET.dll"
#func global InternetCreateUrlW "InternetCreateUrlW" wptr, wptr, wptr, wptr
; InternetCreateUrlW varptr(lpUrlComponents), dwFlags, varptr(lpszUrl), varptr(lpdwUrlLength)   ; 戻り値は stat
; lpUrlComponents : URL_COMPONENTSW* -> "wptr"
; dwFlags : DWORD -> "wptr"
; lpszUrl : LPWSTR optional, out -> "wptr"
; lpdwUrlLength : DWORD* in/out -> "wptr"
; ※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 "WININET.dll"
#cfunc global InternetCreateUrlW "InternetCreateUrlW" var, int, var, var
; res = InternetCreateUrlW(lpUrlComponents, dwFlags, lpszUrl, lpdwUrlLength)
; lpUrlComponents : URL_COMPONENTSW* -> "var"
; dwFlags : DWORD -> "int"
; lpszUrl : LPWSTR optional, out -> "var"
; lpdwUrlLength : 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。

; BOOL InternetCreateUrlW(URL_COMPONENTSW* lpUrlComponents, DWORD dwFlags, LPWSTR lpszUrl, DWORD* lpdwUrlLength)
#uselib "WININET.dll"
#cfunc global InternetCreateUrlW "InternetCreateUrlW" var, int, var, var
; res = InternetCreateUrlW(lpUrlComponents, dwFlags, lpszUrl, lpdwUrlLength)
; lpUrlComponents : URL_COMPONENTSW* -> "var"
; dwFlags : DWORD -> "int"
; lpszUrl : LPWSTR optional, out -> "var"
; lpdwUrlLength : 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 (
	wininet = windows.NewLazySystemDLL("WININET.dll")
	procInternetCreateUrlW = wininet.NewProc("InternetCreateUrlW")
)

// lpUrlComponents (URL_COMPONENTSW*), dwFlags (DWORD), lpszUrl (LPWSTR optional, out), lpdwUrlLength (DWORD* in/out)
r1, _, err := procInternetCreateUrlW.Call(
	uintptr(lpUrlComponents),
	uintptr(dwFlags),
	uintptr(lpszUrl),
	uintptr(lpdwUrlLength),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // BOOL

function InternetCreateUrlW(
  lpUrlComponents: Pointer;   // URL_COMPONENTSW*
  dwFlags: DWORD;   // DWORD
  lpszUrl: PWideChar;   // LPWSTR optional, out
  lpdwUrlLength: Pointer   // DWORD* in/out
): BOOL; stdcall;
  external 'WININET.dll' name 'InternetCreateUrlW';

result := DllCall("WININET\InternetCreateUrlW"
    , "Ptr", lpUrlComponents   ; URL_COMPONENTSW*
    , "UInt", dwFlags   ; DWORD
    , "Ptr", lpszUrl   ; LPWSTR optional, out
    , "Ptr", lpdwUrlLength   ; DWORD* in/out
    , "Int")   ; return: BOOL

●InternetCreateUrlW(lpUrlComponents, dwFlags, lpszUrl, lpdwUrlLength) = DLL("WININET.dll", "bool InternetCreateUrlW(void*, dword, char*, void*)")
# 呼び出し: InternetCreateUrlW(lpUrlComponents, dwFlags, lpszUrl, lpdwUrlLength)
# lpUrlComponents : URL_COMPONENTSW* -> "void*"
# dwFlags : DWORD -> "dword"
# lpszUrl : LPWSTR optional, out -> "char*"
# lpdwUrlLength : 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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。