From faa8708c3a0b99b7aaa3fe90b24b06924fd5ba7e Mon Sep 17 00:00:00 2001
From: milk <yongxin.chang@bambulab.com>
Date: Mon, 26 May 2025 21:09:32 +0800
Subject: [PATCH] ENH:Avoid null pointer dereference

jira:[STUDIO-12113]

Change-Id: I992f2559f01e200697e6c7f105d94a81a445bcfd
(cherry picked from commit 849bfff512a9edad8d635fbc2bb7c10fd5f836df)
---
 src/slic3r/GUI/SendToPrinter.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/slic3r/GUI/SendToPrinter.cpp b/src/slic3r/GUI/SendToPrinter.cpp
index 1945007625..d343ca9d26 100644
--- a/src/slic3r/GUI/SendToPrinter.cpp
+++ b/src/slic3r/GUI/SendToPrinter.cpp
@@ -1855,6 +1855,11 @@ void SendToPrinterDialog::fetchUrl(boost::weak_ptr<PrinterFileSystem> wfs)
     DeviceManager *dm = GUI::wxGetApp().getDeviceManager();
     MachineObject *obj = dm->get_selected_machine();
 
+    if (obj == nullptr) {
+        fs->SetUrl("0");
+        return;
+    }
+
     std::string dev_ver = obj->get_ota_version();
     std::string dev_id = obj->dev_id;
     int remote_proto = obj->get_file_remote();