From 85e3c53a2134df72c72df5a1b03438c804006006 Mon Sep 17 00:00:00 2001
From: AngryGamer <AngryGamer@github.com>
Date: Thu, 28 Jun 2018 02:18:28 -0700
Subject: [PATCH] Fix hanging problem while shutingdown and backup file is
 absent

Fix #4295, fix #4276, close #4611
---
 PowerEditor/src/NppBigSwitch.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/PowerEditor/src/NppBigSwitch.cpp b/PowerEditor/src/NppBigSwitch.cpp
index 99ee3c4c..0c5ed195 100644
--- a/PowerEditor/src/NppBigSwitch.cpp
+++ b/PowerEditor/src/NppBigSwitch.cpp
@@ -1766,6 +1766,9 @@ LRESULT Notepad_plus::process(HWND hwnd, UINT message, WPARAM wParam, LPARAM lPa
 					//User cancelled the shutdown
 					scnN.nmhdr.code = NPPN_CANCELSHUTDOWN;
 					_pluginsManager.notify(&scnN);
+					
+					if (isSnapshotMode)
+						::LockWindowUpdate(NULL);
 					return FALSE;
 				}