Matlab - edit text y listbox

function varargout = imprimir_continuamente_en_listbox(varargin)

gui_Singleton = 1;

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

                   'gui_Singleton',  gui_Singleton, ...

                   'gui_OpeningFcn', @imprimir_continuamente_en_listbox_OpeningFcn, ...

                   'gui_OutputFcn',  @imprimir_continuamente_en_listbox_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 imprimir_continuamente_en_listbox_OpeningFcn(hObject, eventdata, handles, varargin)

global V

V=[];

handles.output = hObject;

guidata(hObject, handles);

function varargout = imprimir_continuamente_en_listbox_OutputFcn(hObject, eventdata, handles)

varargout{1} = handles.output;

function listbox1_Callback(hObject, eventdata, handles)

function pushbutton1_Callback(hObject, eventdata, handles)

global V

%V=handles.v;

set(handles.listbox1,'string',V)

function edit1_Callback(hObject, eventdata, handles)

global V

v=str2double(get(hObject,'String'));

V=[V;v];