GetThemeColor

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

HRESULT GetThemeColor(
    HTHEME hTheme,
    INT iPartId,
    INT iStateId,
    INT iPropId,
    COLORREF* pColor
);

<DllImport("UXTHEME.dll", ExactSpelling:=True)>
Public Shared Function GetThemeColor(
    hTheme As IntPtr,   ' HTHEME
    iPartId As Integer,   ' INT
    iStateId As Integer,   ' INT
    iPropId As Integer,   ' INT
    <Out> ByRef pColor As UInteger   ' COLORREF* out
) As Integer
End Function

' hTheme : HTHEME
' iPartId : INT
' iStateId : INT
' iPropId : INT
' pColor : COLORREF* out
Declare PtrSafe Function GetThemeColor Lib "uxtheme" ( _
    ByVal hTheme As LongPtr, _
    ByVal iPartId As Long, _
    ByVal iStateId As Long, _
    ByVal iPropId As Long, _
    ByRef pColor 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

GetThemeColor = ctypes.windll.uxtheme.GetThemeColor
GetThemeColor.restype = ctypes.c_int
GetThemeColor.argtypes = [
    ctypes.c_ssize_t,  # hTheme : HTHEME
    ctypes.c_int,  # iPartId : INT
    ctypes.c_int,  # iStateId : INT
    ctypes.c_int,  # iPropId : INT
    ctypes.c_void_p,  # pColor : COLORREF* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('UXTHEME.dll')
GetThemeColor = Fiddle::Function.new(
  lib['GetThemeColor'],
  [
    Fiddle::TYPE_INTPTR_T,  # hTheme : HTHEME
    Fiddle::TYPE_INT,  # iPartId : INT
    Fiddle::TYPE_INT,  # iStateId : INT
    Fiddle::TYPE_INT,  # iPropId : INT
    Fiddle::TYPE_VOIDP,  # pColor : COLORREF* out
  ],
  Fiddle::TYPE_INT)

#[link(name = "uxtheme")]
extern "system" {
    fn GetThemeColor(
        hTheme: isize,  // HTHEME
        iPartId: i32,  // INT
        iStateId: i32,  // INT
        iPropId: i32,  // INT
        pColor: *mut u32  // COLORREF* out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("UXTHEME.dll")]
public static extern int GetThemeColor(IntPtr hTheme, int iPartId, int iStateId, int iPropId, out uint pColor);
"@
$api = Add-Type -MemberDefinition $sig -Name 'UXTHEME_GetThemeColor' -Namespace Win32 -PassThru
# $api::GetThemeColor(hTheme, iPartId, iStateId, iPropId, pColor)

#uselib "UXTHEME.dll"
#func global GetThemeColor "GetThemeColor" sptr, sptr, sptr, sptr, sptr
; GetThemeColor hTheme, iPartId, iStateId, iPropId, varptr(pColor)   ; 戻り値は stat
; hTheme : HTHEME -> "sptr"
; iPartId : INT -> "sptr"
; iStateId : INT -> "sptr"
; iPropId : INT -> "sptr"
; pColor : COLORREF* 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 (
	uxtheme = windows.NewLazySystemDLL("UXTHEME.dll")
	procGetThemeColor = uxtheme.NewProc("GetThemeColor")
)

// hTheme (HTHEME), iPartId (INT), iStateId (INT), iPropId (INT), pColor (COLORREF* out)
r1, _, err := procGetThemeColor.Call(
	uintptr(hTheme),
	uintptr(iPartId),
	uintptr(iStateId),
	uintptr(iPropId),
	uintptr(pColor),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function GetThemeColor(
  hTheme: NativeInt;   // HTHEME
  iPartId: Integer;   // INT
  iStateId: Integer;   // INT
  iPropId: Integer;   // INT
  pColor: Pointer   // COLORREF* out
): Integer; stdcall;
  external 'UXTHEME.dll' name 'GetThemeColor';

result := DllCall("UXTHEME\GetThemeColor"
    , "Ptr", hTheme   ; HTHEME
    , "Int", iPartId   ; INT
    , "Int", iStateId   ; INT
    , "Int", iPropId   ; INT
    , "Ptr", pColor   ; COLORREF* out
    , "Int")   ; return: HRESULT

●GetThemeColor(hTheme, iPartId, iStateId, iPropId, pColor) = DLL("UXTHEME.dll", "int GetThemeColor(int, int, int, int, void*)")
# 呼び出し: GetThemeColor(hTheme, iPartId, iStateId, iPropId, pColor)
# hTheme : HTHEME -> "int"
# iPartId : INT -> "int"
# iStateId : INT -> "int"
# iPropId : INT -> "int"
# pColor : COLORREF* 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 "uxtheme" fn GetThemeColor(
    hTheme: isize, // HTHEME
    iPartId: i32, // INT
    iStateId: i32, // INT
    iPropId: i32, // INT
    pColor: [*c]u32 // COLORREF* out
) callconv(std.os.windows.WINAPI) i32;

proc GetThemeColor(
    hTheme: int,  # HTHEME
    iPartId: int32,  # INT
    iStateId: int32,  # INT
    iPropId: int32,  # INT
    pColor: ptr uint32  # COLORREF* out
): int32 {.importc: "GetThemeColor", stdcall, dynlib: "UXTHEME.dll".}

pragma(lib, "uxtheme");
extern(Windows)
int GetThemeColor(
    ptrdiff_t hTheme,   // HTHEME
    int iPartId,   // INT
    int iStateId,   // INT
    int iPropId,   // INT
    uint* pColor   // COLORREF* out
);

ccall((:GetThemeColor, "UXTHEME.dll"), stdcall, Int32,
      (Int, Int32, Int32, Int32, Ptr{UInt32}),
      hTheme, iPartId, iStateId, iPropId, pColor)
# hTheme : HTHEME -> Int
# iPartId : INT -> Int32
# iStateId : INT -> Int32
# iPropId : INT -> Int32
# pColor : COLORREF* out -> Ptr{UInt32}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t GetThemeColor(
    intptr_t hTheme,
    int32_t iPartId,
    int32_t iStateId,
    int32_t iPropId,
    uint32_t* pColor);
]]
local uxtheme = ffi.load("uxtheme")
-- uxtheme.GetThemeColor(hTheme, iPartId, iStateId, iPropId, pColor)
-- hTheme : HTHEME
-- iPartId : INT
-- iStateId : INT
-- iPropId : INT
-- pColor : COLORREF* 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('UXTHEME.dll');
const GetThemeColor = lib.func('__stdcall', 'GetThemeColor', 'int32_t', ['intptr_t', 'int32_t', 'int32_t', 'int32_t', 'uint32_t *']);
// GetThemeColor(hTheme, iPartId, iStateId, iPropId, pColor)
// hTheme : HTHEME -> 'intptr_t'
// iPartId : INT -> 'int32_t'
// iStateId : INT -> 'int32_t'
// iPropId : INT -> 'int32_t'
// pColor : COLORREF* out -> '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("UXTHEME.dll", {
  GetThemeColor: { parameters: ["isize", "i32", "i32", "i32", "pointer"], result: "i32" },
});
// lib.symbols.GetThemeColor(hTheme, iPartId, iStateId, iPropId, pColor)
// hTheme : HTHEME -> "isize"
// iPartId : INT -> "i32"
// iStateId : INT -> "i32"
// iPropId : INT -> "i32"
// pColor : COLORREF* 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 GetThemeColor(
    intptr_t hTheme,
    int32_t iPartId,
    int32_t iStateId,
    int32_t iPropId,
    uint32_t* pColor);
C, "UXTHEME.dll");
// $ffi->GetThemeColor(hTheme, iPartId, iStateId, iPropId, pColor);
// hTheme : HTHEME
// iPartId : INT
// iStateId : INT
// iPropId : INT
// pColor : COLORREF* 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 Uxtheme extends StdCallLibrary {
    Uxtheme INSTANCE = Native.load("uxtheme", Uxtheme.class);
    int GetThemeColor(
        long hTheme,   // HTHEME
        int iPartId,   // INT
        int iStateId,   // INT
        int iPropId,   // INT
        IntByReference pColor   // COLORREF* out
    );
}

@[Link("uxtheme")]
lib LibUXTHEME
  fun GetThemeColor = GetThemeColor(
    hTheme : LibC::SSizeT,   # HTHEME
    iPartId : Int32,   # INT
    iStateId : Int32,   # INT
    iPropId : Int32,   # INT
    pColor : UInt32*   # COLORREF* 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 GetThemeColorNative = Int32 Function(IntPtr, Int32, Int32, Int32, Pointer<Uint32>);
typedef GetThemeColorDart = int Function(int, int, int, int, Pointer<Uint32>);
final GetThemeColor = DynamicLibrary.open('UXTHEME.dll')
    .lookupFunction<GetThemeColorNative, GetThemeColorDart>('GetThemeColor');
// hTheme : HTHEME -> IntPtr
// iPartId : INT -> Int32
// iStateId : INT -> Int32
// iPropId : INT -> Int32
// pColor : COLORREF* out -> Pointer<Uint32>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function GetThemeColor(
  hTheme: NativeInt;   // HTHEME
  iPartId: Integer;   // INT
  iStateId: Integer;   // INT
  iPropId: Integer;   // INT
  pColor: Pointer   // COLORREF* out
): Integer; stdcall;
  external 'UXTHEME.dll' name 'GetThemeColor';

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

foreign import stdcall safe "GetThemeColor"
  c_GetThemeColor :: CIntPtr -> Int32 -> Int32 -> Int32 -> Ptr Word32 -> IO Int32
-- hTheme : HTHEME -> CIntPtr
-- iPartId : INT -> Int32
-- iStateId : INT -> Int32
-- iPropId : INT -> Int32
-- pColor : COLORREF* out -> Ptr 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 getthemecolor =
  foreign "GetThemeColor"
    (intptr_t @-> int32_t @-> int32_t @-> int32_t @-> (ptr uint32_t) @-> returning int32_t)
(* hTheme : HTHEME -> intptr_t *)
(* iPartId : INT -> int32_t *)
(* iStateId : INT -> int32_t *)
(* iPropId : INT -> int32_t *)
(* pColor : COLORREF* out -> (ptr 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 uxtheme (t "UXTHEME.dll"))
(cffi:use-foreign-library uxtheme)

(cffi:defcfun ("GetThemeColor" get-theme-color :convention :stdcall) :int32
  (h-theme :int64)   ; HTHEME
  (i-part-id :int32)   ; INT
  (i-state-id :int32)   ; INT
  (i-prop-id :int32)   ; INT
  (p-color :pointer))   ; COLORREF* out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

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