MATLAB: How to exit a GUI program

gui

If I exit a GUI code when it is running,it will still be running in the background or maybe some errors will occur. I want to know whether there is a function that can completely exit the program and kill all errors.

Best Answer

>> close all force

Well depends on what you want exactly, but after exist if you feel there are some hidden figures or some reason to think there is something open, the above command forces them to close. Use it when the CloseRequestFcn has been modified for example.

http://www.mathworks.com/help/matlab/ref/close.html

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MATLAB: Guidance on Closing a “GUIDE” Gui

I would recommend putting any checks in a function that itself opens the GUI then you simply don't even attempt to open the GUI if the checks fail. I have been caught out myself with bailing out on a GUI in the OpeningFcn and ending up with a ghost GUI that is in some hidden state.

closereq

should do the job though to close the window although not if you have put things in the CloseRequest function that you do not want to happen in this case.

As far as closing windows that have been opened during a session goes it is entirely down to your application really. As far as I know Matlab does not allow figures to be parented by other figures so I programmed a GUI Manager class that deals with launching GUIs and closes them all down automatically when the manager is deleted (which happens when the 'parent' window closes). Generally though you can just close them yourself in the DeleteFcn or CloseRequestFcn of your main window.

If you call uiwait with a figure handle you don't need an explicit uiresume so long as the figure is closed at some point as this will cause it to resume anyway. You can do a uiresume explicitly though to pair up with a uiwait that was not given a figure handle. Then you can delete the figure whenever you deem appropriate.

MATLAB: Exit code

Why are you exiting the code before you present the Error box?

Why are you using msgbox() instead of errordlg() ?

Do you want Matlab as a whole to EXIT, or do you want to RETURN to whatever routine might have called the present one, or do you want to create an ERROR condition that throws the program back to the command prompt unless something CATCHes the error?

Best Answer

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MATLAB: Guidance on Closing a “GUIDE” Gui

MATLAB: Exit code

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