How to exit a GUI program?

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.

Answer 1

[Shashank Prasanna]

>> 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

Answer 2

[Sean de Wolski]

Well to insure that there aren't errors, put in conditionals before doing something that would error.

For example: if you have a function that wants to set a textbox's string to 'Done' at the end:

h = handle to textbox

if ishandle(h)  %Does thes the textbox still exist?
    %Yup
    set(h,'String','Done');
else
    %Figure was closed!
    return
end