MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Podręcznik Użytkownika Pobierz pdf (Strona 300)

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8 Programming a GUIDE GUI

button_state = get(hObject,'Value');

if button_st ate == get(hObject,'Max')

% Toggle button is pressed, take appropriate action

...

elseif butto n_st ate == get(hObject, 'Min ')

% Toggle button is not pressed, take appropri ate action

...

end

You can also change the state of a toggle button programmatically by setting

thetogglebutton

Value property to the value of its Max or Min property. This

example i llustrates a possible syntax for such an assignment.

set(handles.togglebutton1,'Value','Max' )

puts the toggle button with Ta g property togglebutton1 in the pressed state.

Note You can use a button group to m anage exclusive selection behavior for

toggle buttons. See “Button Group” on page 8-42 for more information.

Radio Button

You can determine the current state of a radio button from within its

Callback callback by querying the state of its Value property. If the radio

button is selected, its

Value property is equal to its Max property. If the radio

button is not selected, it is equal to its

Min property. This example illustrates

such a test.

function radiob utto n1_Callback(hObject, eventdata, handles)

if (get(hObj ect, 'Value') == get(hOb ject,'Max'))

% Radio button is selected, t ake appropriate action

else

% Radio button is not selecte d, take appropriate action

end

You can also change the state of a radio button programmatically by setting

the radio button

Value property to the value of the Max or Min property. This

example i llustrates a possible syntax for such an assignment.

set(handles.radiobutton1,'Value','Max')

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