Matlab - ingresar datos en una gui

function varargout = opciones(varargin)

gui_Singleton = 1;

gui_State = struct('gui_Name',       mfilename, ...

                   'gui_Singleton',  gui_Singleton, ...

                   'gui_OpeningFcn', @opciones_OpeningFcn, ...

                   'gui_OutputFcn',  @opciones_OutputFcn, ...

                   'gui_LayoutFcn',  [] , ...

                   'gui_Callback',   []);

if nargin && ischar(varargin{1})

    gui_State.gui_Callback = str2func(varargin{1});

end

if nargout

    [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});

else

    gui_mainfcn(gui_State, varargin{:});

end

function opciones_OpeningFcn(hObject, eventdata, handles, varargin)

set(handles.popupmenu1,'visible','on')

set(handles.edit1,'visible','on')

set(handles.popupmenu1,'string',{'opciones','hola'})

handles.output = hObject;

guidata(hObject, handles);

function varargout = opciones_OutputFcn(hObject, eventdata, handles)

varargout{1} = handles.output;

function edit1_Callback(hObject, eventdata, handles)

 a=get(hObject,'string')

 set(handles.popupmenu1,'visible','off')

function popupmenu1_Callback(hObject, eventdata, handles)

contents = cellstr(get(hObject,'String')) ;

a=contents{get(hObject,'Value')}

set(handles.edit1,'visible','off')