Author: Thomas Viehmann <tv@beamnet.de>
Date: Thu, 8 Dec 2022 12:23:15 +0800
Subject: Fix segfault due to uninitialized imgui in wxwidgets3.2

Bug-Debian: https://bugs.debian.org/1022234
From: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1022234#15
Forwarded: no
---
 src/slic3r/GUI/HintNotification.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/slic3r/GUI/HintNotification.cpp b/src/slic3r/GUI/HintNotification.cpp
index e88947d..1ca52e0 100644
--- a/src/slic3r/GUI/HintNotification.cpp
+++ b/src/slic3r/GUI/HintNotification.cpp
@@ -560,7 +560,9 @@ void HintDatabase::clear_used()
 
 void NotificationManager::HintNotification::count_spaces()
 {
-	//determine line width 
+	ImGuiWrapper& imgui = *wxGetApp().imgui();
+	imgui.new_frame();
+	//determine line width
 	m_line_height = ImGui::CalcTextSize("A").y;