From 330b030e81a6a746290e18dad99f80210ccbee1b Mon Sep 17 00:00:00 2001
From: RSDuck <RSDuck@users.noreply.github.com>
Date: Tue, 9 Dec 2025 18:14:43 +0100
Subject: [PATCH] fix #2497

---
 src/frontend/qt_sdl/ARCodeQDecl.h         | 30 +++++++++++++++++++++++
 src/frontend/qt_sdl/CMakeLists.txt        |  1 +
 src/frontend/qt_sdl/CheatImportDialog.cpp |  1 +
 src/frontend/qt_sdl/CheatsDialog.cpp      |  2 ++
 4 files changed, 34 insertions(+)
 create mode 100644 src/frontend/qt_sdl/ARCodeQDecl.h

diff --git a/src/frontend/qt_sdl/ARCodeQDecl.h b/src/frontend/qt_sdl/ARCodeQDecl.h
new file mode 100644
index 0000000000..7e63302743
--- /dev/null
+++ b/src/frontend/qt_sdl/ARCodeQDecl.h
@@ -0,0 +1,30 @@
+/*
+    Copyright 2016-2025 melonDS team
+
+    This file is part of melonDS.
+
+    melonDS is free software: you can redistribute it and/or modify it under
+    the terms of the GNU General Public License as published by the Free
+    Software Foundation, either version 3 of the License, or (at your option)
+    any later version.
+
+    melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
+    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+    FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with melonDS. If not, see http://www.gnu.org/licenses/.
+*/
+#ifndef ARCODEQDECL
+#define ARCODEQDECL
+
+#include <QObject>
+
+#include "ARCodeFile.h"
+#include "ARDatabaseDAT.h"
+
+Q_DECLARE_METATYPE(melonDS::ARCodeCat*)
+Q_DECLARE_METATYPE(melonDS::ARDatabaseEntry*)
+Q_DECLARE_METATYPE(melonDS::ARCode*)
+
+#endif
diff --git a/src/frontend/qt_sdl/CMakeLists.txt b/src/frontend/qt_sdl/CMakeLists.txt
index db2d413ea7..b8fa40cecc 100644
--- a/src/frontend/qt_sdl/CMakeLists.txt
+++ b/src/frontend/qt_sdl/CMakeLists.txt
@@ -42,6 +42,7 @@ set(SOURCES_QT_SDL
     AboutDialog.cpp
     AboutDialog.h
     AboutDialog.ui
+    ARCodeQDecl.h
 
     ArchiveUtil.h
     ArchiveUtil.cpp
diff --git a/src/frontend/qt_sdl/CheatImportDialog.cpp b/src/frontend/qt_sdl/CheatImportDialog.cpp
index 4ff71b855b..99761af9f9 100644
--- a/src/frontend/qt_sdl/CheatImportDialog.cpp
+++ b/src/frontend/qt_sdl/CheatImportDialog.cpp
@@ -29,6 +29,7 @@
 
 #include "CheatImportDialog.h"
 #include "ui_CheatImportDialog.h"
+#include "ARCodeQDecl.h"
 
 using namespace melonDS;
 using Platform::Log;
diff --git a/src/frontend/qt_sdl/CheatsDialog.cpp b/src/frontend/qt_sdl/CheatsDialog.cpp
index ec906e7a73..d9d9cd9baf 100644
--- a/src/frontend/qt_sdl/CheatsDialog.cpp
+++ b/src/frontend/qt_sdl/CheatsDialog.cpp
@@ -30,6 +30,8 @@
 #include "ui_CheatsDialog.h"
 #include "CheatImportDialog.h"
 
+#include "ARCodeQDecl.h"
+
 using namespace melonDS;
 using Platform::Log;
 using Platform::LogLevel;