From: Simon Hänisch <simonhaenisch@users.noreply.github.com>
Date: Mon, 27 Jun 2016 15:03:37 +0000 (+0200)
Subject: update watershed.py: check if windows are still open
X-Git-Tag: accepted/tizen/6.0/unified/20201030.111113~1830^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6489d8a96fbadfca0070762829bf8374457e809d;p=platform%2Fupstream%2Fopencv.git

update watershed.py: check if windows are still open

change the `while` loop to check if the two windows created by this example still exist, stop the program otherwise
---

diff --git a/samples/python/watershed.py b/samples/python/watershed.py
index 6d349e1..134e499 100755
--- a/samples/python/watershed.py
+++ b/samples/python/watershed.py
@@ -55,7 +55,7 @@ class App:
         cv2.imshow('watershed', vis)
 
     def run(self):
-        while True:
+        while cv2.getWindowProperty('img', 0) != -1 or cv2.getWindowProperty('watershed', 0) != -1:
             ch = 0xFF & cv2.waitKey(50)
             if ch == 27:
                 break