GetThemeSysColor

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

COLORREF GetThemeSysColor(
    HTHEME hTheme,   // optional
    INT iColorId
);

<DllImport("UXTHEME.dll", ExactSpelling:=True)>
Public Shared Function GetThemeSysColor(
    hTheme As IntPtr,   ' HTHEME optional
    iColorId As Integer   ' INT
) As UInteger
End Function

' hTheme : HTHEME optional
' iColorId : INT
Declare PtrSafe Function GetThemeSysColor Lib "uxtheme" ( _
    ByVal hTheme As LongPtr, _
    ByVal iColorId 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

GetThemeSysColor = ctypes.windll.uxtheme.GetThemeSysColor
GetThemeSysColor.restype = wintypes.DWORD
GetThemeSysColor.argtypes = [
    ctypes.c_ssize_t,  # hTheme : HTHEME optional
    ctypes.c_int,  # iColorId : INT
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('UXTHEME.dll')
GetThemeSysColor = Fiddle::Function.new(
  lib['GetThemeSysColor'],
  [
    Fiddle::TYPE_INTPTR_T,  # hTheme : HTHEME optional
    Fiddle::TYPE_INT,  # iColorId : INT
  ],
  -Fiddle::TYPE_INT)

#[link(name = "uxtheme")]
extern "system" {
    fn GetThemeSysColor(
        hTheme: isize,  // HTHEME optional
        iColorId: i32  // INT
    ) -> u32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("UXTHEME.dll")]
public static extern uint GetThemeSysColor(IntPtr hTheme, int iColorId);
"@
$api = Add-Type -MemberDefinition $sig -Name 'UXTHEME_GetThemeSysColor' -Namespace Win32 -PassThru
# $api::GetThemeSysColor(hTheme, iColorId)

#uselib "UXTHEME.dll"
#func global GetThemeSysColor "GetThemeSysColor" sptr, sptr
; GetThemeSysColor hTheme, iColorId   ; 戻り値は stat
; hTheme : HTHEME optional -> "sptr"
; iColorId : 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。

#uselib "UXTHEME.dll"
#cfunc global GetThemeSysColor "GetThemeSysColor" sptr, int
; res = GetThemeSysColor(hTheme, iColorId)
; hTheme : HTHEME optional -> "sptr"
; iColorId : INT -> "int"

; COLORREF GetThemeSysColor(HTHEME hTheme, INT iColorId)
#uselib "UXTHEME.dll"
#cfunc global GetThemeSysColor "GetThemeSysColor" intptr, int
; res = GetThemeSysColor(hTheme, iColorId)
; hTheme : HTHEME optional -> "intptr"
; iColorId : INT -> "int"

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

var (
	uxtheme = windows.NewLazySystemDLL("UXTHEME.dll")
	procGetThemeSysColor = uxtheme.NewProc("GetThemeSysColor")
)

// hTheme (HTHEME optional), iColorId (INT)
r1, _, err := procGetThemeSysColor.Call(
	uintptr(hTheme),
	uintptr(iColorId),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // COLORREF

function GetThemeSysColor(
  hTheme: NativeInt;   // HTHEME optional
  iColorId: Integer   // INT
): DWORD; stdcall;
  external 'UXTHEME.dll' name 'GetThemeSysColor';

result := DllCall("UXTHEME\GetThemeSysColor"
    , "Ptr", hTheme   ; HTHEME optional
    , "Int", iColorId   ; INT
    , "UInt")   ; return: COLORREF

●GetThemeSysColor(hTheme, iColorId) = DLL("UXTHEME.dll", "dword GetThemeSysColor(int, int)")
# 呼び出し: GetThemeSysColor(hTheme, iColorId)
# hTheme : HTHEME optional -> "int"
# iColorId : 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 GetThemeSysColor(
    hTheme: isize, // HTHEME optional
    iColorId: i32 // INT
) callconv(std.os.windows.WINAPI) u32;

proc GetThemeSysColor(
    hTheme: int,  # HTHEME optional
    iColorId: int32  # INT
): uint32 {.importc: "GetThemeSysColor", stdcall, dynlib: "UXTHEME.dll".}

pragma(lib, "uxtheme");
extern(Windows)
uint GetThemeSysColor(
    ptrdiff_t hTheme,   // HTHEME optional
    int iColorId   // INT
);

ccall((:GetThemeSysColor, "UXTHEME.dll"), stdcall, UInt32,
      (Int, Int32),
      hTheme, iColorId)
# hTheme : HTHEME optional -> Int
# iColorId : INT -> Int32
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
uint32_t GetThemeSysColor(
    intptr_t hTheme,
    int32_t iColorId);
]]
local uxtheme = ffi.load("uxtheme")
-- uxtheme.GetThemeSysColor(hTheme, iColorId)
-- hTheme : HTHEME optional
-- iColorId : 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 GetThemeSysColor = lib.func('__stdcall', 'GetThemeSysColor', 'uint32_t', ['intptr_t', 'int32_t']);
// GetThemeSysColor(hTheme, iColorId)
// hTheme : HTHEME optional -> 'intptr_t'
// iColorId : 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", {
  GetThemeSysColor: { parameters: ["isize", "i32"], result: "u32" },
});
// lib.symbols.GetThemeSysColor(hTheme, iColorId)
// hTheme : HTHEME optional -> "isize"
// iColorId : 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
uint32_t GetThemeSysColor(
    intptr_t hTheme,
    int32_t iColorId);
C, "UXTHEME.dll");
// $ffi->GetThemeSysColor(hTheme, iColorId);
// hTheme : HTHEME optional
// iColorId : 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 GetThemeSysColor(
        long hTheme,   // HTHEME optional
        int iColorId   // INT
    );
}

@[Link("uxtheme")]
lib LibUXTHEME
  fun GetThemeSysColor = GetThemeSysColor(
    hTheme : LibC::SSizeT,   # HTHEME optional
    iColorId : Int32   # INT
  ) : UInt32
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 GetThemeSysColorNative = Uint32 Function(IntPtr, Int32);
typedef GetThemeSysColorDart = int Function(int, int);
final GetThemeSysColor = DynamicLibrary.open('UXTHEME.dll')
    .lookupFunction<GetThemeSysColorNative, GetThemeSysColorDart>('GetThemeSysColor');
// hTheme : HTHEME optional -> IntPtr
// iColorId : INT -> Int32
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetThemeSysColor(
  hTheme: NativeInt;   // HTHEME optional
  iColorId: Integer   // INT
): DWORD; stdcall;
  external 'UXTHEME.dll' name 'GetThemeSysColor';

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

foreign import stdcall safe "GetThemeSysColor"
  c_GetThemeSysColor :: CIntPtr -> Int32 -> IO Word32
-- hTheme : HTHEME optional -> CIntPtr
-- iColorId : 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 getthemesyscolor =
  foreign "GetThemeSysColor"
    (intptr_t @-> int32_t @-> returning uint32_t)
(* hTheme : HTHEME optional -> intptr_t *)
(* iColorId : 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 ("GetThemeSysColor" get-theme-sys-color :convention :stdcall) :uint32
  (h-theme :int64)   ; HTHEME optional
  (i-color-id :int32))   ; INT
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $GetThemeSysColor = Win32::API::More->new('UXTHEME',
    'DWORD GetThemeSysColor(LPARAM hTheme, int iColorId)');
# my $ret = $GetThemeSysColor->Call($hTheme, $iColorId);
# hTheme : HTHEME optional -> LPARAM
# iColorId : INT -> int
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。