From 5bbc68df7b6dd0ecdf7c8f24906b203bdfd4f055 Mon Sep 17 00:00:00 2001
From: enricoturri1966 <enricoturri@seznam.cz>
Date: Tue, 8 Jun 2021 11:51:41 +0200
Subject: [PATCH] Do not close application when user select 'Cancel' in the
 save dirty project dialog

---
 src/slic3r/GUI/MainFrame.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/slic3r/GUI/MainFrame.cpp b/src/slic3r/GUI/MainFrame.cpp
index f464087388..5a9e5d43a5 100644
--- a/src/slic3r/GUI/MainFrame.cpp
+++ b/src/slic3r/GUI/MainFrame.cpp
@@ -213,8 +213,10 @@ DPIFrame(NULL, wxID_ANY, "", wxDefaultPosition, wxDefaultSize, wxDEFAULT_FRAME_S
             return;
         }
 
-        if (m_plater != nullptr)
-            m_plater->save_project_if_dirty();
+        if (m_plater != nullptr && !m_plater->save_project_if_dirty()) {
+            event.Veto();
+            return;
+        }
 
         if (event.CanVeto() && !wxGetApp().check_and_save_current_preset_changes()) {
 #else