how to execute stop(vid) when i close the imshow figure while running a while loop?

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arun joshi
arun joshi 2018-9-14
评论： Walter Roberson 2019-1-12
i am capturing images from a camera in real time and displaying the processed image in a while loop. As soon as I close the figure window, an error pops up. I want to execute stop(vid) after i close the figure and don't want the error to exist.
the error is as given below
Error using matlab.ui.Figure/set Invalid or deleted object.
Error in imshow (line 343) set(fig_handle, 'NextPlot', 'replacechildren')
Error in LiveDetector (line 40) imshow(imgOut);toc;
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Walter Roberson
Walter Roberson 2019-1-12
use the close request callback that I linked to . That is exactly the kind of purpose the callback was designed for.

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回答（1 个）

Walter Roberson
Walter Roberson 2018-12-11
https://www.mathworks.com/help/matlab/ref/matlab.ui.figure-properties.html#buiwuyk-1-CloseRequestFcn
use a callback to detect the close attempt .use it to stop the video before deleting the figure.

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