From 7123d9c3765342c7040050c88943dda992c1aace Mon Sep 17 00:00:00 2001
From: Dmitry Kurtaev <dmitry.kurtaev+github@gmail.com>
Date: Wed, 23 Aug 2017 14:56:54 +0300
Subject: [PATCH] Added 1ms delay to let system decorate Qt windows

---
 modules/highgui/src/window_QT.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/modules/highgui/src/window_QT.cpp b/modules/highgui/src/window_QT.cpp
index 420d2a1dc6..1233993e0a 100644
--- a/modules/highgui/src/window_QT.cpp
+++ b/modules/highgui/src/window_QT.cpp
@@ -994,6 +994,7 @@ void GuiReceiver::createWindow(QString name, int flags)
 
     nb_windows++;
     new CvWindow(name, flags);
+    cvWaitKey(1);
 }