MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Manual do Utilizador descarregar pdf (Página 297)

100

101

GUI with Axes, Menu, and Toolbar

12-19

Note MATLAB automatically passes hUpdateButtonCallback two

arguments,

hObject and eventdata, because the Update push button

component

Callback property, @hUpdateButtonCallback, is defined as a

function handle.

hObject contains the handle of the component that triggered

execution of the callback.

eventdata is reserved for future use. The function

definition line for your callback must account for these two arguments.

Open Menu Item Callback

The hOpenMenuitemCallback function services the Open menu item and the

Open toolbar button . Selecting the menu item or clicking the toolbar button

triggers the execution of this callback function.

function hOpenMenuitemCallback(hObject, eventdata)

% Callback function run when the Open menu item is selected

file = uigetfile('*.m');

if ~isequal(file, 0)

open(file);

end

The hOpenMenuitemCallback function first calls the uigetfile function to

open the standard dialog box for retrieving files. This dialog box lists all

M-files. If

uigetfile returns a filename, the function then calls the open

function to open it.

1 2 ... 292 293 294 295 296 297 298 299 300 301 302 ... 329 330

Comentários a estes Manuais

Sem comentários

MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Manual do Utilizador Página 297

Comentários a estes Manuais