How to check if an opencv window is closed

Question

How do you check if an opencv window has been closed?

I would like to do:

cvNamedWindow(\"main\", 1);

while(!cvWindowIsClosed(\"main\"))
{
    cvSho         


        

Answer 1

You can use the cv::getWindowProperty method.

Do like that:

cv::namedWindow("main", WINDOW_AUTOSIZE);

while(1)
{
     cv::imshow("main", myImage);

     // add this IF.
     if (cv::getWindowProperty("main", WND_PROP_AUTOSIZE) == -1)
         break;
}

When the windows be closed the getWindowProperty will return -1.