From 3548696bd7c23f65350d74ef1d3209f4ed8cb1f5 Mon Sep 17 00:00:00 2001
From: ozone10 <positronix10@gmail.com>
Date: Thu, 15 May 2025 19:36:14 +0200
Subject: [PATCH] Fix updown control style not changing when toggling dark mode

Fix https://github.com/notepad-plus-plus/notepad-plus-plus/pull/16548#issuecomment-2884419833, close #16553
---
 PowerEditor/src/Notepad_plus.cpp              | 6 ++++--
 PowerEditor/src/WinControls/TabBar/TabBar.cpp | 1 +
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/PowerEditor/src/Notepad_plus.cpp b/PowerEditor/src/Notepad_plus.cpp
index ce245e31e..fb6e6aca7 100644
--- a/PowerEditor/src/Notepad_plus.cpp
+++ b/PowerEditor/src/Notepad_plus.cpp
@@ -8606,14 +8606,16 @@ void Notepad_plus::refreshDarkMode(bool resetStyle)
 			NppDarkMode::setDarkTitleBar(_pPublicInterface->getHSelf());
 			::SetWindowPos(_pPublicInterface->getHSelf(), nullptr, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED);
 
-			for (auto& docCont : _dockingManager.getContainerInfo())
+			for (const auto& docCont : _dockingManager.getContainerInfo())
 			{
+				NppDarkMode::autoThemeChildControls(docCont->getTabWnd()); // for updown child
+
 				auto hwndDocCont = docCont->getCaptionWnd();
 				NppDarkMode::setDarkTitleBar(hwndDocCont);
 				::SetWindowPos(hwndDocCont, nullptr, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED);
 			}
 
-			for (auto& hwndDlg : _hModelessDlgs)
+			for (const auto& hwndDlg : _hModelessDlgs)
 			{
 				NppDarkMode::setDarkTitleBar(hwndDlg);
 				::SendMessage(hwndDlg, NPPM_INTERNAL_REFRESHDARKMODE, 0, 0);
diff --git a/PowerEditor/src/WinControls/TabBar/TabBar.cpp b/PowerEditor/src/WinControls/TabBar/TabBar.cpp
index 859bfc27b..92e419a45 100644
--- a/PowerEditor/src/WinControls/TabBar/TabBar.cpp
+++ b/PowerEditor/src/WinControls/TabBar/TabBar.cpp
@@ -666,6 +666,7 @@ LRESULT TabBarPlus::runProc(HWND hwnd, UINT Message, WPARAM wParam, LPARAM lPara
 
 		case NPPM_INTERNAL_REFRESHDARKMODE:
 		{
+			NppDarkMode::autoThemeChildControls(hwnd); // for updown child
 			NppDarkMode::setDarkTooltips(hwnd, NppDarkMode::ToolTipsType::tabbar);
 			setCloseBtnImageList();
 			setPinBtnImageList();