WSCGetProviderPath

// WS2_32.dll
#include <windows.h>

INT WSCGetProviderPath(
    GUID* lpProviderId,
    LPWSTR lpszProviderDllPath,
    INT* lpProviderDllPathLen,
    INT* lpErrno
);

<DllImport("WS2_32.dll", ExactSpelling:=True)>
Public Shared Function WSCGetProviderPath(
    ByRef lpProviderId As Guid,   ' GUID*
    <MarshalAs(UnmanagedType.LPWStr)> lpszProviderDllPath As System.Text.StringBuilder,   ' LPWSTR out
    ByRef lpProviderDllPathLen As Integer,   ' INT* in/out
    <Out> ByRef lpErrno As Integer   ' INT* out
) As Integer
End Function

' lpProviderId : GUID*
' lpszProviderDllPath : LPWSTR out
' lpProviderDllPathLen : INT* in/out
' lpErrno : INT* out
Declare PtrSafe Function WSCGetProviderPath Lib "ws2_32" ( _
    ByVal lpProviderId As LongPtr, _
    ByVal lpszProviderDllPath As LongPtr, _
    ByRef lpProviderDllPathLen As Long, _
    ByRef lpErrno 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

WSCGetProviderPath = ctypes.windll.ws2_32.WSCGetProviderPath
WSCGetProviderPath.restype = ctypes.c_int
WSCGetProviderPath.argtypes = [
    ctypes.c_void_p,  # lpProviderId : GUID*
    wintypes.LPWSTR,  # lpszProviderDllPath : LPWSTR out
    ctypes.POINTER(ctypes.c_int),  # lpProviderDllPathLen : INT* in/out
    ctypes.POINTER(ctypes.c_int),  # lpErrno : INT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('WS2_32.dll')
WSCGetProviderPath = Fiddle::Function.new(
  lib['WSCGetProviderPath'],
  [
    Fiddle::TYPE_VOIDP,  # lpProviderId : GUID*
    Fiddle::TYPE_VOIDP,  # lpszProviderDllPath : LPWSTR out
    Fiddle::TYPE_VOIDP,  # lpProviderDllPathLen : INT* in/out
    Fiddle::TYPE_VOIDP,  # lpErrno : INT* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "ws2_32")]
extern "system" {
    fn WSCGetProviderPath(
        lpProviderId: *mut GUID,  // GUID*
        lpszProviderDllPath: *mut u16,  // LPWSTR out
        lpProviderDllPathLen: *mut i32,  // INT* in/out
        lpErrno: *mut i32  // INT* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("WS2_32.dll")]
public static extern int WSCGetProviderPath(ref Guid lpProviderId, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder lpszProviderDllPath, ref int lpProviderDllPathLen, out int lpErrno);
"@
$api = Add-Type -MemberDefinition $sig -Name 'WS2_32_WSCGetProviderPath' -Namespace Win32 -PassThru
# $api::WSCGetProviderPath(lpProviderId, lpszProviderDllPath, lpProviderDllPathLen, lpErrno)

#uselib "WS2_32.dll"
#func global WSCGetProviderPath "WSCGetProviderPath" sptr, sptr, sptr, sptr
; WSCGetProviderPath varptr(lpProviderId), varptr(lpszProviderDllPath), varptr(lpProviderDllPathLen), varptr(lpErrno)   ; 戻り値は stat
; lpProviderId : GUID* -> "sptr"
; lpszProviderDllPath : LPWSTR out -> "sptr"
; lpProviderDllPathLen : INT* in/out -> "sptr"
; lpErrno : INT* out -> "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 (
	ws2_32 = windows.NewLazySystemDLL("WS2_32.dll")
	procWSCGetProviderPath = ws2_32.NewProc("WSCGetProviderPath")
)

// lpProviderId (GUID*), lpszProviderDllPath (LPWSTR out), lpProviderDllPathLen (INT* in/out), lpErrno (INT* out)
r1, _, err := procWSCGetProviderPath.Call(
	uintptr(lpProviderId),
	uintptr(lpszProviderDllPath),
	uintptr(lpProviderDllPathLen),
	uintptr(lpErrno),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function WSCGetProviderPath(
  lpProviderId: PGUID;   // GUID*
  lpszProviderDllPath: PWideChar;   // LPWSTR out
  lpProviderDllPathLen: Pointer;   // INT* in/out
  lpErrno: Pointer   // INT* out
): Integer; stdcall;
  external 'WS2_32.dll' name 'WSCGetProviderPath';

result := DllCall("WS2_32\WSCGetProviderPath"
    , "Ptr", lpProviderId   ; GUID*
    , "Ptr", lpszProviderDllPath   ; LPWSTR out
    , "Ptr", lpProviderDllPathLen   ; INT* in/out
    , "Ptr", lpErrno   ; INT* out
    , "Int")   ; return: INT

●WSCGetProviderPath(lpProviderId, lpszProviderDllPath, lpProviderDllPathLen, lpErrno) = DLL("WS2_32.dll", "int WSCGetProviderPath(void*, char*, void*, void*)")
# 呼び出し: WSCGetProviderPath(lpProviderId, lpszProviderDllPath, lpProviderDllPathLen, lpErrno)
# lpProviderId : GUID* -> "void*"
# lpszProviderDllPath : LPWSTR out -> "char*"
# lpProviderDllPathLen : INT* in/out -> "void*"
# lpErrno : INT* 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)。

const std = @import("std");

extern "ws2_32" fn WSCGetProviderPath(
    lpProviderId: [*c]GUID, // GUID*
    lpszProviderDllPath: [*c]u16, // LPWSTR out
    lpProviderDllPathLen: [*c]i32, // INT* in/out
    lpErrno: [*c]i32 // INT* out
) callconv(std.os.windows.WINAPI) i32;

proc WSCGetProviderPath(
    lpProviderId: ptr GUID,  # GUID*
    lpszProviderDllPath: ptr uint16,  # LPWSTR out
    lpProviderDllPathLen: ptr int32,  # INT* in/out
    lpErrno: ptr int32  # INT* out
): int32 {.importc: "WSCGetProviderPath", stdcall, dynlib: "WS2_32.dll".}

pragma(lib, "ws2_32");
extern(Windows)
int WSCGetProviderPath(
    GUID* lpProviderId,   // GUID*
    wchar* lpszProviderDllPath,   // LPWSTR out
    int* lpProviderDllPathLen,   // INT* in/out
    int* lpErrno   // INT* out
);

ccall((:WSCGetProviderPath, "WS2_32.dll"), stdcall, Int32,
      (Ptr{GUID}, Ptr{UInt16}, Ptr{Int32}, Ptr{Int32}),
      lpProviderId, lpszProviderDllPath, lpProviderDllPathLen, lpErrno)
# lpProviderId : GUID* -> Ptr{GUID}
# lpszProviderDllPath : LPWSTR out -> Ptr{UInt16}
# lpProviderDllPathLen : INT* in/out -> Ptr{Int32}
# lpErrno : INT* out -> Ptr{Int32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t WSCGetProviderPath(
    void* lpProviderId,
    uint16_t* lpszProviderDllPath,
    int32_t* lpProviderDllPathLen,
    int32_t* lpErrno);
]]
local ws2_32 = ffi.load("ws2_32")
-- ws2_32.WSCGetProviderPath(lpProviderId, lpszProviderDllPath, lpProviderDllPathLen, lpErrno)
-- lpProviderId : GUID*
-- lpszProviderDllPath : LPWSTR out
-- lpProviderDllPathLen : INT* in/out
-- lpErrno : INT* out
-- 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('WS2_32.dll');
const WSCGetProviderPath = lib.func('__stdcall', 'WSCGetProviderPath', 'int32_t', ['void *', 'uint16_t *', 'int32_t *', 'int32_t *']);
// WSCGetProviderPath(lpProviderId, lpszProviderDllPath, lpProviderDllPathLen, lpErrno)
// lpProviderId : GUID* -> 'void *'
// lpszProviderDllPath : LPWSTR out -> 'uint16_t *'
// lpProviderDllPathLen : INT* in/out -> 'int32_t *'
// lpErrno : INT* out -> 'int32_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("WS2_32.dll", {
  WSCGetProviderPath: { parameters: ["pointer", "buffer", "pointer", "pointer"], result: "i32" },
});
// lib.symbols.WSCGetProviderPath(lpProviderId, lpszProviderDllPath, lpProviderDllPathLen, lpErrno)
// lpProviderId : GUID* -> "pointer"
// lpszProviderDllPath : LPWSTR out -> "buffer"
// lpProviderDllPathLen : INT* in/out -> "pointer"
// lpErrno : INT* out -> "pointer"
// 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 WSCGetProviderPath(
    void* lpProviderId,
    uint16_t* lpszProviderDllPath,
    int32_t* lpProviderDllPathLen,
    int32_t* lpErrno);
C, "WS2_32.dll");
// $ffi->WSCGetProviderPath(lpProviderId, lpszProviderDllPath, lpProviderDllPathLen, lpErrno);
// lpProviderId : GUID*
// lpszProviderDllPath : LPWSTR out
// lpProviderDllPathLen : INT* in/out
// lpErrno : INT* out
// 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 Ws2_32 extends StdCallLibrary {
    Ws2_32 INSTANCE = Native.load("ws2_32", Ws2_32.class);
    int WSCGetProviderPath(
        Pointer lpProviderId,   // GUID*
        char[] lpszProviderDllPath,   // LPWSTR out
        IntByReference lpProviderDllPathLen,   // INT* in/out
        IntByReference lpErrno   // INT* out
    );
}

@[Link("ws2_32")]
lib LibWS2_32
  fun WSCGetProviderPath = WSCGetProviderPath(
    lpProviderId : GUID*,   # GUID*
    lpszProviderDllPath : UInt16*,   # LPWSTR out
    lpProviderDllPathLen : Int32*,   # INT* in/out
    lpErrno : Int32*   # INT* out
  ) : 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 WSCGetProviderPathNative = Int32 Function(Pointer<Void>, Pointer<Utf16>, Pointer<Int32>, Pointer<Int32>);
typedef WSCGetProviderPathDart = int Function(Pointer<Void>, Pointer<Utf16>, Pointer<Int32>, Pointer<Int32>);
final WSCGetProviderPath = DynamicLibrary.open('WS2_32.dll')
    .lookupFunction<WSCGetProviderPathNative, WSCGetProviderPathDart>('WSCGetProviderPath');
// lpProviderId : GUID* -> Pointer<Void>
// lpszProviderDllPath : LPWSTR out -> Pointer<Utf16>
// lpProviderDllPathLen : INT* in/out -> Pointer<Int32>
// lpErrno : INT* out -> Pointer<Int32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function WSCGetProviderPath(
  lpProviderId: PGUID;   // GUID*
  lpszProviderDllPath: PWideChar;   // LPWSTR out
  lpProviderDllPathLen: Pointer;   // INT* in/out
  lpErrno: Pointer   // INT* out
): Integer; stdcall;
  external 'WS2_32.dll' name 'WSCGetProviderPath';

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

foreign import stdcall safe "WSCGetProviderPath"
  c_WSCGetProviderPath :: Ptr () -> CWString -> Ptr Int32 -> Ptr Int32 -> IO Int32
-- lpProviderId : GUID* -> Ptr ()
-- lpszProviderDllPath : LPWSTR out -> CWString
-- lpProviderDllPathLen : INT* in/out -> Ptr Int32
-- lpErrno : INT* out -> Ptr Int32
-- 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 wscgetproviderpath =
  foreign "WSCGetProviderPath"
    ((ptr void) @-> (ptr uint16_t) @-> (ptr int32_t) @-> (ptr int32_t) @-> returning int32_t)
(* lpProviderId : GUID* -> (ptr void) *)
(* lpszProviderDllPath : LPWSTR out -> (ptr uint16_t) *)
(* lpProviderDllPathLen : INT* in/out -> (ptr int32_t) *)
(* lpErrno : INT* out -> (ptr int32_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 ws2_32 (t "WS2_32.dll"))
(cffi:use-foreign-library ws2_32)

(cffi:defcfun ("WSCGetProviderPath" wscget-provider-path :convention :stdcall) :int32
  (lp-provider-id :pointer)   ; GUID*
  (lpsz-provider-dll-path :pointer)   ; LPWSTR out
  (lp-provider-dll-path-len :pointer)   ; INT* in/out
  (lp-errno :pointer))   ; INT* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $WSCGetProviderPath = Win32::API::More->new('WS2_32',
    'int WSCGetProviderPath(LPVOID lpProviderId, LPWSTR lpszProviderDllPath, LPVOID lpProviderDllPathLen, LPVOID lpErrno)');
# my $ret = $WSCGetProviderPath->Call($lpProviderId, $lpszProviderDllPath, $lpProviderDllPathLen, $lpErrno);
# lpProviderId : GUID* -> LPVOID
# lpszProviderDllPath : LPWSTR out -> LPWSTR
# lpProviderDllPathLen : INT* in/out -> LPVOID
# lpErrno : INT* out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。