From 8fcc6fd9cff488275570220069ea6c6e0705f9b0 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Sat, 5 Nov 2022 13:33:18 +0100
Subject: [PATCH] Gui: [skip ci] fix possible crash in
 FilterStatusBar::eventFilter()

---
 src/Gui/CommandWindow.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Gui/CommandWindow.cpp b/src/Gui/CommandWindow.cpp
index e32c965cf9..b65de04256 100644
--- a/src/Gui/CommandWindow.cpp
+++ b/src/Gui/CommandWindow.cpp
@@ -376,7 +376,8 @@ protected:
     Action * action;
     bool eventFilter(QObject *obj, QEvent *event) override
     {
-        if (getMainWindow()->findChild<QStatusBar *>() && obj == getMainWindow()->statusBar() && ((event->type() == QEvent::Hide) || (event->type() == QEvent::Show))) {
+        if (getMainWindow() && getMainWindow()->findChild<QStatusBar *>() && obj == getMainWindow()->statusBar() &&
+            ((event->type() == QEvent::Hide) || (event->type() == QEvent::Show))) {
             this->action->setChecked(getMainWindow()->statusBar()->isVisible());
         }
         return false;