GetThemeFilename

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

HRESULT GetThemeFilename(
    HTHEME hTheme,
    INT iPartId,
    INT iStateId,
    INT iPropId,
    LPWSTR pszThemeFileName,
    INT cchMaxBuffChars
);

<DllImport("UXTHEME.dll", ExactSpelling:=True)>
Public Shared Function GetThemeFilename(
    hTheme As IntPtr,   ' HTHEME
    iPartId As Integer,   ' INT
    iStateId As Integer,   ' INT
    iPropId As Integer,   ' INT
    <MarshalAs(UnmanagedType.LPWStr)> pszThemeFileName As System.Text.StringBuilder,   ' LPWSTR out
    cchMaxBuffChars As Integer   ' INT
) As Integer
End Function

' hTheme : HTHEME
' iPartId : INT
' iStateId : INT
' iPropId : INT
' pszThemeFileName : LPWSTR out
' cchMaxBuffChars : INT
Declare PtrSafe Function GetThemeFilename Lib "uxtheme" ( _
    ByVal hTheme As LongPtr, _
    ByVal iPartId As Long, _
    ByVal iStateId As Long, _
    ByVal iPropId As Long, _
    ByVal pszThemeFileName As LongPtr, _
    ByVal cchMaxBuffChars 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

GetThemeFilename = ctypes.windll.uxtheme.GetThemeFilename
GetThemeFilename.restype = ctypes.c_int
GetThemeFilename.argtypes = [
    ctypes.c_ssize_t,  # hTheme : HTHEME
    ctypes.c_int,  # iPartId : INT
    ctypes.c_int,  # iStateId : INT
    ctypes.c_int,  # iPropId : INT
    wintypes.LPWSTR,  # pszThemeFileName : LPWSTR out
    ctypes.c_int,  # cchMaxBuffChars : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('UXTHEME.dll')
GetThemeFilename = Fiddle::Function.new(
  lib['GetThemeFilename'],
  [
    Fiddle::TYPE_INTPTR_T,  # hTheme : HTHEME
    Fiddle::TYPE_INT,  # iPartId : INT
    Fiddle::TYPE_INT,  # iStateId : INT
    Fiddle::TYPE_INT,  # iPropId : INT
    Fiddle::TYPE_VOIDP,  # pszThemeFileName : LPWSTR out
    Fiddle::TYPE_INT,  # cchMaxBuffChars : INT
  ],
  Fiddle::TYPE_INT)

#[link(name = "uxtheme")]
extern "system" {
    fn GetThemeFilename(
        hTheme: isize,  // HTHEME
        iPartId: i32,  // INT
        iStateId: i32,  // INT
        iPropId: i32,  // INT
        pszThemeFileName: *mut u16,  // LPWSTR out
        cchMaxBuffChars: i32  // INT
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("UXTHEME.dll")]
public static extern int GetThemeFilename(IntPtr hTheme, int iPartId, int iStateId, int iPropId, [MarshalAs(UnmanagedType.LPWStr)] System.Text.StringBuilder pszThemeFileName, int cchMaxBuffChars);
"@
$api = Add-Type -MemberDefinition $sig -Name 'UXTHEME_GetThemeFilename' -Namespace Win32 -PassThru
# $api::GetThemeFilename(hTheme, iPartId, iStateId, iPropId, pszThemeFileName, cchMaxBuffChars)

#uselib "UXTHEME.dll"
#func global GetThemeFilename "GetThemeFilename" sptr, sptr, sptr, sptr, sptr, sptr
; GetThemeFilename hTheme, iPartId, iStateId, iPropId, varptr(pszThemeFileName), cchMaxBuffChars   ; 戻り値は stat
; hTheme : HTHEME -> "sptr"
; iPartId : INT -> "sptr"
; iStateId : INT -> "sptr"
; iPropId : INT -> "sptr"
; pszThemeFileName : LPWSTR out -> "sptr"
; cchMaxBuffChars : INT -> "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 (
	uxtheme = windows.NewLazySystemDLL("UXTHEME.dll")
	procGetThemeFilename = uxtheme.NewProc("GetThemeFilename")
)

// hTheme (HTHEME), iPartId (INT), iStateId (INT), iPropId (INT), pszThemeFileName (LPWSTR out), cchMaxBuffChars (INT)
r1, _, err := procGetThemeFilename.Call(
	uintptr(hTheme),
	uintptr(iPartId),
	uintptr(iStateId),
	uintptr(iPropId),
	uintptr(pszThemeFileName),
	uintptr(cchMaxBuffChars),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetThemeFilename(
  hTheme: NativeInt;   // HTHEME
  iPartId: Integer;   // INT
  iStateId: Integer;   // INT
  iPropId: Integer;   // INT
  pszThemeFileName: PWideChar;   // LPWSTR out
  cchMaxBuffChars: Integer   // INT
): Integer; stdcall;
  external 'UXTHEME.dll' name 'GetThemeFilename';

result := DllCall("UXTHEME\GetThemeFilename"
    , "Ptr", hTheme   ; HTHEME
    , "Int", iPartId   ; INT
    , "Int", iStateId   ; INT
    , "Int", iPropId   ; INT
    , "Ptr", pszThemeFileName   ; LPWSTR out
    , "Int", cchMaxBuffChars   ; INT
    , "Int")   ; return: HRESULT

●GetThemeFilename(hTheme, iPartId, iStateId, iPropId, pszThemeFileName, cchMaxBuffChars) = DLL("UXTHEME.dll", "int GetThemeFilename(int, int, int, int, char*, int)")
# 呼び出し: GetThemeFilename(hTheme, iPartId, iStateId, iPropId, pszThemeFileName, cchMaxBuffChars)
# hTheme : HTHEME -> "int"
# iPartId : INT -> "int"
# iStateId : INT -> "int"
# iPropId : INT -> "int"
# pszThemeFileName : LPWSTR out -> "char*"
# cchMaxBuffChars : INT -> "int"
# 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 GetThemeFilename(
    hTheme: isize, // HTHEME
    iPartId: i32, // INT
    iStateId: i32, // INT
    iPropId: i32, // INT
    pszThemeFileName: [*c]u16, // LPWSTR out
    cchMaxBuffChars: i32 // INT
) callconv(std.os.windows.WINAPI) i32;

proc GetThemeFilename(
    hTheme: int,  # HTHEME
    iPartId: int32,  # INT
    iStateId: int32,  # INT
    iPropId: int32,  # INT
    pszThemeFileName: ptr uint16,  # LPWSTR out
    cchMaxBuffChars: int32  # INT
): int32 {.importc: "GetThemeFilename", stdcall, dynlib: "UXTHEME.dll".}

pragma(lib, "uxtheme");
extern(Windows)
int GetThemeFilename(
    ptrdiff_t hTheme,   // HTHEME
    int iPartId,   // INT
    int iStateId,   // INT
    int iPropId,   // INT
    wchar* pszThemeFileName,   // LPWSTR out
    int cchMaxBuffChars   // INT
);

ccall((:GetThemeFilename, "UXTHEME.dll"), stdcall, Int32,
      (Int, Int32, Int32, Int32, Ptr{UInt16}, Int32),
      hTheme, iPartId, iStateId, iPropId, pszThemeFileName, cchMaxBuffChars)
# hTheme : HTHEME -> Int
# iPartId : INT -> Int32
# iStateId : INT -> Int32
# iPropId : INT -> Int32
# pszThemeFileName : LPWSTR out -> Ptr{UInt16}
# cchMaxBuffChars : INT -> Int32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t GetThemeFilename(
    intptr_t hTheme,
    int32_t iPartId,
    int32_t iStateId,
    int32_t iPropId,
    uint16_t* pszThemeFileName,
    int32_t cchMaxBuffChars);
]]
local uxtheme = ffi.load("uxtheme")
-- uxtheme.GetThemeFilename(hTheme, iPartId, iStateId, iPropId, pszThemeFileName, cchMaxBuffChars)
-- hTheme : HTHEME
-- iPartId : INT
-- iStateId : INT
-- iPropId : INT
-- pszThemeFileName : LPWSTR out
-- cchMaxBuffChars : INT
-- 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 GetThemeFilename = lib.func('__stdcall', 'GetThemeFilename', 'int32_t', ['intptr_t', 'int32_t', 'int32_t', 'int32_t', 'uint16_t *', 'int32_t']);
// GetThemeFilename(hTheme, iPartId, iStateId, iPropId, pszThemeFileName, cchMaxBuffChars)
// hTheme : HTHEME -> 'intptr_t'
// iPartId : INT -> 'int32_t'
// iStateId : INT -> 'int32_t'
// iPropId : INT -> 'int32_t'
// pszThemeFileName : LPWSTR out -> 'uint16_t *'
// cchMaxBuffChars : INT -> '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("UXTHEME.dll", {
  GetThemeFilename: { parameters: ["isize", "i32", "i32", "i32", "buffer", "i32"], result: "i32" },
});
// lib.symbols.GetThemeFilename(hTheme, iPartId, iStateId, iPropId, pszThemeFileName, cchMaxBuffChars)
// hTheme : HTHEME -> "isize"
// iPartId : INT -> "i32"
// iStateId : INT -> "i32"
// iPropId : INT -> "i32"
// pszThemeFileName : LPWSTR out -> "buffer"
// cchMaxBuffChars : INT -> "i32"
// 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 GetThemeFilename(
    intptr_t hTheme,
    int32_t iPartId,
    int32_t iStateId,
    int32_t iPropId,
    uint16_t* pszThemeFileName,
    int32_t cchMaxBuffChars);
C, "UXTHEME.dll");
// $ffi->GetThemeFilename(hTheme, iPartId, iStateId, iPropId, pszThemeFileName, cchMaxBuffChars);
// hTheme : HTHEME
// iPartId : INT
// iStateId : INT
// iPropId : INT
// pszThemeFileName : LPWSTR out
// cchMaxBuffChars : INT
// 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 GetThemeFilename(
        long hTheme,   // HTHEME
        int iPartId,   // INT
        int iStateId,   // INT
        int iPropId,   // INT
        char[] pszThemeFileName,   // LPWSTR out
        int cchMaxBuffChars   // INT
    );
}

@[Link("uxtheme")]
lib LibUXTHEME
  fun GetThemeFilename = GetThemeFilename(
    hTheme : LibC::SSizeT,   # HTHEME
    iPartId : Int32,   # INT
    iStateId : Int32,   # INT
    iPropId : Int32,   # INT
    pszThemeFileName : UInt16*,   # LPWSTR out
    cchMaxBuffChars : Int32   # INT
  ) : 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 GetThemeFilenameNative = Int32 Function(IntPtr, Int32, Int32, Int32, Pointer<Utf16>, Int32);
typedef GetThemeFilenameDart = int Function(int, int, int, int, Pointer<Utf16>, int);
final GetThemeFilename = DynamicLibrary.open('UXTHEME.dll')
    .lookupFunction<GetThemeFilenameNative, GetThemeFilenameDart>('GetThemeFilename');
// hTheme : HTHEME -> IntPtr
// iPartId : INT -> Int32
// iStateId : INT -> Int32
// iPropId : INT -> Int32
// pszThemeFileName : LPWSTR out -> Pointer<Utf16>
// cchMaxBuffChars : INT -> Int32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetThemeFilename(
  hTheme: NativeInt;   // HTHEME
  iPartId: Integer;   // INT
  iStateId: Integer;   // INT
  iPropId: Integer;   // INT
  pszThemeFileName: PWideChar;   // LPWSTR out
  cchMaxBuffChars: Integer   // INT
): Integer; stdcall;
  external 'UXTHEME.dll' name 'GetThemeFilename';

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

foreign import stdcall safe "GetThemeFilename"
  c_GetThemeFilename :: CIntPtr -> Int32 -> Int32 -> Int32 -> CWString -> Int32 -> IO Int32
-- hTheme : HTHEME -> CIntPtr
-- iPartId : INT -> Int32
-- iStateId : INT -> Int32
-- iPropId : INT -> Int32
-- pszThemeFileName : LPWSTR out -> CWString
-- cchMaxBuffChars : INT -> 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 getthemefilename =
  foreign "GetThemeFilename"
    (intptr_t @-> int32_t @-> int32_t @-> int32_t @-> (ptr uint16_t) @-> int32_t @-> returning int32_t)
(* hTheme : HTHEME -> intptr_t *)
(* iPartId : INT -> int32_t *)
(* iStateId : INT -> int32_t *)
(* iPropId : INT -> int32_t *)
(* pszThemeFileName : LPWSTR out -> (ptr uint16_t) *)
(* cchMaxBuffChars : INT -> 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 uxtheme (t "UXTHEME.dll"))
(cffi:use-foreign-library uxtheme)

(cffi:defcfun ("GetThemeFilename" get-theme-filename :convention :stdcall) :int32
  (h-theme :int64)   ; HTHEME
  (i-part-id :int32)   ; INT
  (i-state-id :int32)   ; INT
  (i-prop-id :int32)   ; INT
  (psz-theme-file-name :pointer)   ; LPWSTR out
  (cch-max-buff-chars :int32))   ; INT
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetThemeFilename = Win32::API::More->new('UXTHEME',
    'int GetThemeFilename(LPARAM hTheme, int iPartId, int iStateId, int iPropId, LPWSTR pszThemeFileName, int cchMaxBuffChars)');
# my $ret = $GetThemeFilename->Call($hTheme, $iPartId, $iStateId, $iPropId, $pszThemeFileName, $cchMaxBuffChars);
# hTheme : HTHEME -> LPARAM
# iPartId : INT -> int
# iStateId : INT -> int
# iPropId : INT -> int
# pszThemeFileName : LPWSTR out -> LPWSTR
# cchMaxBuffChars : INT -> int
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。