SetWindowTheme

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

HRESULT SetWindowTheme(
    HWND hwnd,
    LPCWSTR pszSubAppName,   // optional
    LPCWSTR pszSubIdList   // optional
);

<DllImport("UXTHEME.dll", ExactSpelling:=True)>
Public Shared Function SetWindowTheme(
    hwnd As IntPtr,   ' HWND
    <MarshalAs(UnmanagedType.LPWStr)> pszSubAppName As String,   ' LPCWSTR optional
    <MarshalAs(UnmanagedType.LPWStr)> pszSubIdList As String   ' LPCWSTR optional
) As Integer
End Function

' hwnd : HWND
' pszSubAppName : LPCWSTR optional
' pszSubIdList : LPCWSTR optional
Declare PtrSafe Function SetWindowTheme Lib "uxtheme" ( _
    ByVal hwnd As LongPtr, _
    ByVal pszSubAppName As LongPtr, _
    ByVal pszSubIdList 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

SetWindowTheme = ctypes.windll.uxtheme.SetWindowTheme
SetWindowTheme.restype = ctypes.c_int
SetWindowTheme.argtypes = [
    wintypes.HANDLE,  # hwnd : HWND
    wintypes.LPCWSTR,  # pszSubAppName : LPCWSTR optional
    wintypes.LPCWSTR,  # pszSubIdList : LPCWSTR optional
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('UXTHEME.dll')
SetWindowTheme = Fiddle::Function.new(
  lib['SetWindowTheme'],
  [
    Fiddle::TYPE_VOIDP,  # hwnd : HWND
    Fiddle::TYPE_VOIDP,  # pszSubAppName : LPCWSTR optional
    Fiddle::TYPE_VOIDP,  # pszSubIdList : LPCWSTR optional
  ],
  Fiddle::TYPE_INT)

#[link(name = "uxtheme")]
extern "system" {
    fn SetWindowTheme(
        hwnd: *mut core::ffi::c_void,  // HWND
        pszSubAppName: *const u16,  // LPCWSTR optional
        pszSubIdList: *const u16  // LPCWSTR optional
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("UXTHEME.dll")]
public static extern int SetWindowTheme(IntPtr hwnd, [MarshalAs(UnmanagedType.LPWStr)] string pszSubAppName, [MarshalAs(UnmanagedType.LPWStr)] string pszSubIdList);
"@
$api = Add-Type -MemberDefinition $sig -Name 'UXTHEME_SetWindowTheme' -Namespace Win32 -PassThru
# $api::SetWindowTheme(hwnd, pszSubAppName, pszSubIdList)

#uselib "UXTHEME.dll"
#func global SetWindowTheme "SetWindowTheme" sptr, sptr, sptr
; SetWindowTheme hwnd, pszSubAppName, pszSubIdList   ; 戻り値は stat
; hwnd : HWND -> "sptr"
; pszSubAppName : LPCWSTR optional -> "sptr"
; pszSubIdList : LPCWSTR 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 "UXTHEME.dll"
#cfunc global SetWindowTheme "SetWindowTheme" sptr, wstr, wstr
; res = SetWindowTheme(hwnd, pszSubAppName, pszSubIdList)
; hwnd : HWND -> "sptr"
; pszSubAppName : LPCWSTR optional -> "wstr"
; pszSubIdList : LPCWSTR optional -> "wstr"

; HRESULT SetWindowTheme(HWND hwnd, LPCWSTR pszSubAppName, LPCWSTR pszSubIdList)
#uselib "UXTHEME.dll"
#cfunc global SetWindowTheme "SetWindowTheme" intptr, wstr, wstr
; res = SetWindowTheme(hwnd, pszSubAppName, pszSubIdList)
; hwnd : HWND -> "intptr"
; pszSubAppName : LPCWSTR optional -> "wstr"
; pszSubIdList : LPCWSTR optional -> "wstr"

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

var (
	uxtheme = windows.NewLazySystemDLL("UXTHEME.dll")
	procSetWindowTheme = uxtheme.NewProc("SetWindowTheme")
)

// hwnd (HWND), pszSubAppName (LPCWSTR optional), pszSubIdList (LPCWSTR optional)
r1, _, err := procSetWindowTheme.Call(
	uintptr(hwnd),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszSubAppName))),
	uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(pszSubIdList))),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function SetWindowTheme(
  hwnd: THandle;   // HWND
  pszSubAppName: PWideChar;   // LPCWSTR optional
  pszSubIdList: PWideChar   // LPCWSTR optional
): Integer; stdcall;
  external 'UXTHEME.dll' name 'SetWindowTheme';

result := DllCall("UXTHEME\SetWindowTheme"
    , "Ptr", hwnd   ; HWND
    , "WStr", pszSubAppName   ; LPCWSTR optional
    , "WStr", pszSubIdList   ; LPCWSTR optional
    , "Int")   ; return: HRESULT

●SetWindowTheme(hwnd, pszSubAppName, pszSubIdList) = DLL("UXTHEME.dll", "int SetWindowTheme(void*, char*, char*)")
# 呼び出し: SetWindowTheme(hwnd, pszSubAppName, pszSubIdList)
# hwnd : HWND -> "void*"
# pszSubAppName : LPCWSTR optional -> "char*"
# pszSubIdList : LPCWSTR optional -> "char*"
# 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 "uxtheme" fn SetWindowTheme(
    hwnd: ?*anyopaque, // HWND
    pszSubAppName: [*c]const u16, // LPCWSTR optional
    pszSubIdList: [*c]const u16 // LPCWSTR optional
) callconv(std.os.windows.WINAPI) i32;

proc SetWindowTheme(
    hwnd: pointer,  # HWND
    pszSubAppName: WideCString,  # LPCWSTR optional
    pszSubIdList: WideCString  # LPCWSTR optional
): int32 {.importc: "SetWindowTheme", stdcall, dynlib: "UXTHEME.dll".}

pragma(lib, "uxtheme");
extern(Windows)
int SetWindowTheme(
    void* hwnd,   // HWND
    const(wchar)* pszSubAppName,   // LPCWSTR optional
    const(wchar)* pszSubIdList   // LPCWSTR optional
);

ccall((:SetWindowTheme, "UXTHEME.dll"), stdcall, Int32,
      (Ptr{Cvoid}, Cwstring, Cwstring),
      hwnd, pszSubAppName, pszSubIdList)
# hwnd : HWND -> Ptr{Cvoid}
# pszSubAppName : LPCWSTR optional -> Cwstring
# pszSubIdList : LPCWSTR optional -> Cwstring
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t SetWindowTheme(
    void* hwnd,
    const uint16_t* pszSubAppName,
    const uint16_t* pszSubIdList);
]]
local uxtheme = ffi.load("uxtheme")
-- uxtheme.SetWindowTheme(hwnd, pszSubAppName, pszSubIdList)
-- hwnd : HWND
-- pszSubAppName : LPCWSTR optional
-- pszSubIdList : LPCWSTR 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('UXTHEME.dll');
const SetWindowTheme = lib.func('__stdcall', 'SetWindowTheme', 'int32_t', ['void *', 'str16', 'str16']);
// SetWindowTheme(hwnd, pszSubAppName, pszSubIdList)
// hwnd : HWND -> 'void *'
// pszSubAppName : LPCWSTR optional -> 'str16'
// pszSubIdList : LPCWSTR optional -> 'str16'
// 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("UXTHEME.dll", {
  SetWindowTheme: { parameters: ["pointer", "buffer", "buffer"], result: "i32" },
});
// lib.symbols.SetWindowTheme(hwnd, pszSubAppName, pszSubIdList)
// hwnd : HWND -> "pointer"
// pszSubAppName : LPCWSTR optional -> "buffer"
// pszSubIdList : LPCWSTR optional -> "buffer"
// 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 SetWindowTheme(
    void* hwnd,
    const uint16_t* pszSubAppName,
    const uint16_t* pszSubIdList);
C, "UXTHEME.dll");
// $ffi->SetWindowTheme(hwnd, pszSubAppName, pszSubIdList);
// hwnd : HWND
// pszSubAppName : LPCWSTR optional
// pszSubIdList : LPCWSTR 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 Uxtheme extends StdCallLibrary {
    Uxtheme INSTANCE = Native.load("uxtheme", Uxtheme.class);
    int SetWindowTheme(
        Pointer hwnd,   // HWND
        WString pszSubAppName,   // LPCWSTR optional
        WString pszSubIdList   // LPCWSTR optional
    );
}

@[Link("uxtheme")]
lib LibUXTHEME
  fun SetWindowTheme = SetWindowTheme(
    hwnd : Void*,   # HWND
    pszSubAppName : UInt16*,   # LPCWSTR optional
    pszSubIdList : UInt16*   # LPCWSTR 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 SetWindowThemeNative = Int32 Function(Pointer<Void>, Pointer<Utf16>, Pointer<Utf16>);
typedef SetWindowThemeDart = int Function(Pointer<Void>, Pointer<Utf16>, Pointer<Utf16>);
final SetWindowTheme = DynamicLibrary.open('UXTHEME.dll')
    .lookupFunction<SetWindowThemeNative, SetWindowThemeDart>('SetWindowTheme');
// hwnd : HWND -> Pointer<Void>
// pszSubAppName : LPCWSTR optional -> Pointer<Utf16>
// pszSubIdList : LPCWSTR optional -> Pointer<Utf16>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function SetWindowTheme(
  hwnd: THandle;   // HWND
  pszSubAppName: PWideChar;   // LPCWSTR optional
  pszSubIdList: PWideChar   // LPCWSTR optional
): Integer; stdcall;
  external 'UXTHEME.dll' name 'SetWindowTheme';

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

foreign import stdcall safe "SetWindowTheme"
  c_SetWindowTheme :: Ptr () -> CWString -> CWString -> IO Int32
-- hwnd : HWND -> Ptr ()
-- pszSubAppName : LPCWSTR optional -> CWString
-- pszSubIdList : LPCWSTR optional -> CWString
-- 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 setwindowtheme =
  foreign "SetWindowTheme"
    ((ptr void) @-> (ptr uint16_t) @-> (ptr uint16_t) @-> returning int32_t)
(* hwnd : HWND -> (ptr void) *)
(* pszSubAppName : LPCWSTR optional -> (ptr uint16_t) *)
(* pszSubIdList : LPCWSTR optional -> (ptr uint16_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 uxtheme (t "UXTHEME.dll"))
(cffi:use-foreign-library uxtheme)

(cffi:defcfun ("SetWindowTheme" set-window-theme :convention :stdcall) :int32
  (hwnd :pointer)   ; HWND
  (psz-sub-app-name (:string :encoding :utf-16le))   ; LPCWSTR optional
  (psz-sub-id-list (:string :encoding :utf-16le)))   ; LPCWSTR optional
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $SetWindowTheme = Win32::API::More->new('UXTHEME',
    'int SetWindowTheme(HANDLE hwnd, LPCWSTR pszSubAppName, LPCWSTR pszSubIdList)');
# my $ret = $SetWindowTheme->Call($hwnd, $pszSubAppName, $pszSubIdList);
# hwnd : HWND -> HANDLE
# pszSubAppName : LPCWSTR optional -> LPCWSTR
# pszSubIdList : LPCWSTR optional -> LPCWSTR
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。