MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Guia do Utilizador descarregar pdf (Página 312)

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8 Programming a GUIDE GUI

• Select SelectionChangeFcn from the View > View C allbacks submenu,

• Right-click and select SelectionChangeFcn from the View Callbacks

context menu item

GUIDE places a

SelectionChangeFcn callback template at the end of the

GUI code file for you to complete.

Thefollowingexampleshowshowtocodea

SelectionChangeFcn callback. It

uses the

Tag property of the selected object to choose the appropriate code to

execute. The

Tag property of each component is a string that identifies that

component and must be unique w ithin the GUI.

function uibuttongroup1_S electionChangeFcn(hObject,eventdata)

switch get(eventda ta.NewValue,'Tag') % Get Tag of selected object.

case 'radiobutton1'

% Code for when radiobutton1 is selected.

case 'radiobutton2'

% Code for when radiobutton2 is selected.

case 'togglebutton1'

% Code for when togglebutton1 is selected.

case 'togglebutton2'

% Code for when togglebutton2 is selected.

% Continue with more cases as necessary.

otherwise

% Code for when there is no match.

end

The hObject and eventda ta arguments are available to the callback only if

the value of the callback property is specified as a function handle. See the

SelectionChangeFcn property on the Uibuttongroup Properties reference

page for information about

eventdata.Seetheuibuttongroup reference page

and “Color Palette” on page 15-51 for other examples.

Warning Do not change the nam e GUIDE assigns to a

SelectionChangeFcn callback, or you will be unable to access it when

the G UI runs.

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