A cancel button, to do nothing

I have a gui(called main) through which I open another gui(called config). When I press ok button in the config gui, it performs and operation and the result is updated on the main gui. I want to add a cancel button in my config gui, so that when I press cancel, it should do nothing at all and close the gui.

Answer 1

[Image Analyst]

In the call back for that button, just delete the variable that is the handle to the gui and it will vanish.

[Praveen Choudhury]

Thank You :)

[Praveen Choudhury]

It closes the gui and does nothing but I get an error in the command window.

Attempt to reference field of non-structure array.

Error in config_window>config_window_OutputFcn (line 90)

varargout{1} = handles.output;

[Image Analyst]

You never assigned that variable. But you don't need it. Just delete the line.