MsiUseFeatureExW

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

INSTALLSTATE MsiUseFeatureExW(
    LPCWSTR szProduct,
    LPCWSTR szFeature,
    DWORD dwInstallMode,
    DWORD dwReserved   // optional
);

<DllImport("msi.dll", CharSet:=CharSet.Unicode, ExactSpelling:=True)>
Public Shared Function MsiUseFeatureExW(
    <MarshalAs(UnmanagedType.LPWStr)> szProduct As String,   ' LPCWSTR
    <MarshalAs(UnmanagedType.LPWStr)> szFeature As String,   ' LPCWSTR
    dwInstallMode As UInteger,   ' DWORD
    dwReserved As UInteger   ' DWORD optional
) As Integer
End Function

' szProduct : LPCWSTR
' szFeature : LPCWSTR
' dwInstallMode : DWORD
' dwReserved : DWORD optional
Declare PtrSafe Function MsiUseFeatureExW Lib "msi" ( _
    ByVal szProduct As LongPtr, _
    ByVal szFeature As LongPtr, _
    ByVal dwInstallMode As Long, _
    ByVal dwReserved 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

MsiUseFeatureExW = ctypes.windll.msi.MsiUseFeatureExW
MsiUseFeatureExW.restype = ctypes.c_int
MsiUseFeatureExW.argtypes = [
    wintypes.LPCWSTR,  # szProduct : LPCWSTR
    wintypes.LPCWSTR,  # szFeature : LPCWSTR
    wintypes.DWORD,  # dwInstallMode : DWORD
    wintypes.DWORD,  # dwReserved : DWORD optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('msi.dll')
MsiUseFeatureExW = Fiddle::Function.new(
  lib['MsiUseFeatureExW'],
  [
    Fiddle::TYPE_VOIDP,  # szProduct : LPCWSTR
    Fiddle::TYPE_VOIDP,  # szFeature : LPCWSTR
    -Fiddle::TYPE_INT,  # dwInstallMode : DWORD
    -Fiddle::TYPE_INT,  # dwReserved : DWORD optional
  ],
  Fiddle::TYPE_INT)
# Wide strings: pass str.encode("UTF-16LE") + "\x00\x00"

#[link(name = "msi")]
extern "system" {
    fn MsiUseFeatureExW(
        szProduct: *const u16,  // LPCWSTR
        szFeature: *const u16,  // LPCWSTR
        dwInstallMode: u32,  // DWORD
        dwReserved: u32  // DWORD optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("msi.dll", CharSet = CharSet.Unicode)]
public static extern int MsiUseFeatureExW([MarshalAs(UnmanagedType.LPWStr)] string szProduct, [MarshalAs(UnmanagedType.LPWStr)] string szFeature, uint dwInstallMode, uint dwReserved);
"@
$api = Add-Type -MemberDefinition $sig -Name 'msi_MsiUseFeatureExW' -Namespace Win32 -PassThru
# $api::MsiUseFeatureExW(szProduct, szFeature, dwInstallMode, dwReserved)

#uselib "msi.dll"
#func global MsiUseFeatureExW "MsiUseFeatureExW" wptr, wptr, wptr, wptr
; MsiUseFeatureExW szProduct, szFeature, dwInstallMode, dwReserved   ; 戻り値は stat
; szProduct : LPCWSTR -> "wptr"
; szFeature : LPCWSTR -> "wptr"
; dwInstallMode : DWORD -> "wptr"
; dwReserved : DWORD optional -> "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 "msi.dll"
#cfunc global MsiUseFeatureExW "MsiUseFeatureExW" wstr, wstr, int, int
; res = MsiUseFeatureExW(szProduct, szFeature, dwInstallMode, dwReserved)
; szProduct : LPCWSTR -> "wstr"
; szFeature : LPCWSTR -> "wstr"
; dwInstallMode : DWORD -> "int"
; dwReserved : DWORD optional -> "int"

; INSTALLSTATE MsiUseFeatureExW(LPCWSTR szProduct, LPCWSTR szFeature, DWORD dwInstallMode, DWORD dwReserved)
#uselib "msi.dll"
#cfunc global MsiUseFeatureExW "MsiUseFeatureExW" wstr, wstr, int, int
; res = MsiUseFeatureExW(szProduct, szFeature, dwInstallMode, dwReserved)
; szProduct : LPCWSTR -> "wstr"
; szFeature : LPCWSTR -> "wstr"
; dwInstallMode : DWORD -> "int"
; dwReserved : DWORD optional -> "int"

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

var (
	msi = windows.NewLazySystemDLL("msi.dll")
	procMsiUseFeatureExW = msi.NewProc("MsiUseFeatureExW")
)

// szProduct (LPCWSTR), szFeature (LPCWSTR), dwInstallMode (DWORD), dwReserved (DWORD optional)
r1, _, err := procMsiUseFeatureExW.Call(
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szProduct))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(szFeature))),
	uintptr(dwInstallMode),
	uintptr(dwReserved),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INSTALLSTATE

function MsiUseFeatureExW(
  szProduct: PWideChar;   // LPCWSTR
  szFeature: PWideChar;   // LPCWSTR
  dwInstallMode: DWORD;   // DWORD
  dwReserved: DWORD   // DWORD optional
): Integer; stdcall;
  external 'msi.dll' name 'MsiUseFeatureExW';

result := DllCall("msi\MsiUseFeatureExW"
    , "WStr", szProduct   ; LPCWSTR
    , "WStr", szFeature   ; LPCWSTR
    , "UInt", dwInstallMode   ; DWORD
    , "UInt", dwReserved   ; DWORD optional
    , "Int")   ; return: INSTALLSTATE

●MsiUseFeatureExW(szProduct, szFeature, dwInstallMode, dwReserved) = DLL("msi.dll", "int MsiUseFeatureExW(char*, char*, dword, dword)")
# 呼び出し: MsiUseFeatureExW(szProduct, szFeature, dwInstallMode, dwReserved)
# szProduct : LPCWSTR -> "char*"
# szFeature : LPCWSTR -> "char*"
# dwInstallMode : DWORD -> "dword"
# dwReserved : DWORD optional -> "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)。
# ※-W(Unicode)関数。なでしこ1はANSIのため -A 版の利用を推奨。

const std = @import("std");

extern "msi" fn MsiUseFeatureExW(
    szProduct: [*c]const u16, // LPCWSTR
    szFeature: [*c]const u16, // LPCWSTR
    dwInstallMode: u32, // DWORD
    dwReserved: u32 // DWORD optional
) callconv(std.os.windows.WINAPI) i32;
// Unicode(-W): UTF-16LE のヌル終端バッファ([*c]const u16)を渡す。

proc MsiUseFeatureExW(
    szProduct: WideCString,  # LPCWSTR
    szFeature: WideCString,  # LPCWSTR
    dwInstallMode: uint32,  # DWORD
    dwReserved: uint32  # DWORD optional
): int32 {.importc: "MsiUseFeatureExW", stdcall, dynlib: "msi.dll".}
# Unicode(-W): WideCString は newWideCString("...") で生成。

pragma(lib, "msi");
extern(Windows)
int MsiUseFeatureExW(
    const(wchar)* szProduct,   // LPCWSTR
    const(wchar)* szFeature,   // LPCWSTR
    uint dwInstallMode,   // DWORD
    uint dwReserved   // DWORD optional
);

ccall((:MsiUseFeatureExW, "msi.dll"), stdcall, Int32,
      (Cwstring, Cwstring, UInt32, UInt32),
      szProduct, szFeature, dwInstallMode, dwReserved)
# szProduct : LPCWSTR -> Cwstring
# szFeature : LPCWSTR -> Cwstring
# dwInstallMode : DWORD -> UInt32
# dwReserved : DWORD optional -> UInt32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。
# Unicode(-W): Cwstring には transcode(UInt16, "...") 等で UTF-16 を渡す。

local ffi = require("ffi")
ffi.cdef[[
int32_t MsiUseFeatureExW(
    const uint16_t* szProduct,
    const uint16_t* szFeature,
    uint32_t dwInstallMode,
    uint32_t dwReserved);
]]
local msi = ffi.load("msi")
-- msi.MsiUseFeatureExW(szProduct, szFeature, dwInstallMode, dwReserved)
-- szProduct : LPCWSTR
-- szFeature : LPCWSTR
-- dwInstallMode : DWORD
-- dwReserved : DWORD 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。
-- Unicode(-W): uint16_t* には UTF-16LE のバッファ(ffi.new("uint16_t[?]", ...))を渡す。

const koffi = require('koffi');
const lib = koffi.load('msi.dll');
const MsiUseFeatureExW = lib.func('__stdcall', 'MsiUseFeatureExW', 'int32_t', ['str16', 'str16', 'uint32_t', 'uint32_t']);
// MsiUseFeatureExW(szProduct, szFeature, dwInstallMode, dwReserved)
// szProduct : LPCWSTR -> 'str16'
// szFeature : LPCWSTR -> 'str16'
// dwInstallMode : DWORD -> 'uint32_t'
// dwReserved : DWORD optional -> '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("msi.dll", {
  MsiUseFeatureExW: { parameters: ["buffer", "buffer", "u32", "u32"], result: "i32" },
});
// lib.symbols.MsiUseFeatureExW(szProduct, szFeature, dwInstallMode, dwReserved)
// szProduct : LPCWSTR -> "buffer"
// szFeature : LPCWSTR -> "buffer"
// dwInstallMode : DWORD -> "u32"
// dwReserved : DWORD optional -> "u32"
// 文字列は "buffer"。Unicode(-W) は new TextEncoder() ではなく UTF-16LE のバイト列(末尾に \x00\x00)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 MsiUseFeatureExW(
    const uint16_t* szProduct,
    const uint16_t* szFeature,
    uint32_t dwInstallMode,
    uint32_t dwReserved);
C, "msi.dll");
// $ffi->MsiUseFeatureExW(szProduct, szFeature, dwInstallMode, dwReserved);
// szProduct : LPCWSTR
// szFeature : LPCWSTR
// dwInstallMode : DWORD
// dwReserved : DWORD 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 Msi extends StdCallLibrary {
    Msi INSTANCE = Native.load("msi", Msi.class, W32APIOptions.UNICODE_OPTIONS);
    int MsiUseFeatureExW(
        WString szProduct,   // LPCWSTR
        WString szFeature,   // LPCWSTR
        int dwInstallMode,   // DWORD
        int dwReserved   // DWORD optional
    );
}
// Unicode(-W): WString(入力)/char[](出力)で UTF-16 をマーシャリング。

@[Link("msi")]
lib Libmsi
  fun MsiUseFeatureExW = MsiUseFeatureExW(
    szProduct : UInt16*,   # LPCWSTR
    szFeature : UInt16*,   # LPCWSTR
    dwInstallMode : UInt32,   # DWORD
    dwReserved : UInt32   # DWORD 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 MsiUseFeatureExWNative = Int32 Function(Pointer<Utf16>, Pointer<Utf16>, Uint32, Uint32);
typedef MsiUseFeatureExWDart = int Function(Pointer<Utf16>, Pointer<Utf16>, int, int);
final MsiUseFeatureExW = DynamicLibrary.open('msi.dll')
    .lookupFunction<MsiUseFeatureExWNative, MsiUseFeatureExWDart>('MsiUseFeatureExW');
// szProduct : LPCWSTR -> Pointer<Utf16>
// szFeature : LPCWSTR -> Pointer<Utf16>
// dwInstallMode : DWORD -> Uint32
// dwReserved : DWORD optional -> Uint32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function MsiUseFeatureExW(
  szProduct: PWideChar;   // LPCWSTR
  szFeature: PWideChar;   // LPCWSTR
  dwInstallMode: DWORD;   // DWORD
  dwReserved: DWORD   // DWORD optional
): Integer; stdcall;
  external 'msi.dll' name 'MsiUseFeatureExW';

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

foreign import stdcall safe "MsiUseFeatureExW"
  c_MsiUseFeatureExW :: CWString -> CWString -> Word32 -> Word32 -> IO Int32
-- szProduct : LPCWSTR -> CWString
-- szFeature : LPCWSTR -> CWString
-- dwInstallMode : DWORD -> Word32
-- dwReserved : DWORD optional -> 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 msiusefeatureexw =
  foreign "MsiUseFeatureExW"
    ((ptr uint16_t) @-> (ptr uint16_t) @-> uint32_t @-> uint32_t @-> returning int32_t)
(* szProduct : LPCWSTR -> (ptr uint16_t) *)
(* szFeature : LPCWSTR -> (ptr uint16_t) *)
(* dwInstallMode : DWORD -> uint32_t *)
(* dwReserved : DWORD optional -> 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 msi (t "msi.dll"))
(cffi:use-foreign-library msi)

(cffi:defcfun ("MsiUseFeatureExW" msi-use-feature-ex-w :convention :stdcall) :int32
  (sz-product (:string :encoding :utf-16le))   ; LPCWSTR
  (sz-feature (:string :encoding :utf-16le))   ; LPCWSTR
  (dw-install-mode :uint32)   ; DWORD
  (dw-reserved :uint32))   ; DWORD optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $MsiUseFeatureExW = Win32::API::More->new('msi',
    'int MsiUseFeatureExW(LPCWSTR szProduct, LPCWSTR szFeature, DWORD dwInstallMode, DWORD dwReserved)');
# my $ret = $MsiUseFeatureExW->Call($szProduct, $szFeature, $dwInstallMode, $dwReserved);
# szProduct : LPCWSTR -> LPCWSTR
# szFeature : LPCWSTR -> LPCWSTR
# dwInstallMode : DWORD -> DWORD
# dwReserved : DWORD optional -> DWORD
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。
# Unicode(-W): LPCWSTR/LPWSTR は Win32::API が UTF-16 変換を行う。