From 2dc88ab0be9fa61eafb1858b50c2d02a6807dfb9 Mon Sep 17 00:00:00 2001
From: Enrico Turri <enricoturri@seznam.cz>
Date: Wed, 10 Apr 2019 13:52:18 +0200
Subject: [PATCH] Fixed crash when typing on keyboard during the app start-up

---
 src/slic3r/GUI/GLCanvas3D.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/slic3r/GUI/GLCanvas3D.cpp b/src/slic3r/GUI/GLCanvas3D.cpp
index c63d265faa..6d650029f8 100644
--- a/src/slic3r/GUI/GLCanvas3D.cpp
+++ b/src/slic3r/GUI/GLCanvas3D.cpp
@@ -2204,6 +2204,9 @@ void GLCanvas3D::on_idle(wxIdleEvent& evt)
 
 void GLCanvas3D::on_char(wxKeyEvent& evt)
 {
+    if (!m_initialized)
+        return;
+
     // see include/wx/defs.h enum wxKeyCode
     int keyCode = evt.GetKeyCode();
     int ctrlMask = wxMOD_CONTROL;