MATLAB: How to use callback from GUI

callbackgui

I was trying to jump to the callback without pressing the pushbutton.

mediumbtn_Callback(hObject, eventdata, handles)

set( handles.textA, 'BackgroundColor', get( hObject, 'BackgroundColor' ) )

in your pushbutton callback, where handles.textA should be replaced by whatever your tag is for the static text.

When you use a string as a Callback, the string is executed in the base workspace, not in the workspace of the function that set the callback.

Also, you are trying to mix command line syntax and function syntax in your save command.

set(pbh,'Callback',@(src,evt) save('data'.txt', get(Bz_eth, 'String'), '-ascii') );