Hi Kiran,
A relatively simple solution would be to capture the event where the GUI/figure closes, grab any and all data that the user entered into the edit boxes, and write it to file. When the GUI opens, then read back that data from the file, and populate the edit boxes (or other widgets) as appropriate (if the file can't be found then just use default values). If using GUIDE, then something like the following code would be needed in your *.m file to write the data when the figure closes:
% --- Executes during object deletion, before destroying properties.
function figure1_DeleteFcn(hObject, eventdata, handles)
% hObject handle to figure1 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% open file to save data to
% grab data from widgets
% write data to file
% close file
Then in the same *.m file, in the code that fires just prior to the GUI being made visible, do the opposite:
% --- Executes just before yourGui is made visible.
function yourGui_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject handle to figure
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% varargin command line arguments to untitled (see VARARGIN)
% open file to read data from
% read data and populate widgets
% close file
Hope that this helps!
Geoff
