MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Specifiche Scaricare il pdf (Pagina 114)

3 Laying Out GUIs and Setting Properties

3-64

Syntax of the Callback Subfunction

The GUI M-file contains all callbacks for the GUI, including the menu

callbacks. All generated callbacks use the same syntax.

For example, the

Select all menu item from the previous example has following

callback string:

MyGui('menu_edit_selectall_Callback',gcbo,[],guidata(gcbo))

where:

•

MyGui — is the name of the GUI M-file that launches the figure containing

the menus.

•

menu_edit_selectall_Callback — is the name of the subfunction callback

for the

Select All menu item (derived from the Tag specified in the Menu

Editor).

•

gcbo — is the handle of the Select All uimenu item.

•

[] — is an empty matrix used as a place holder for future use.

•

guidata(gcbo) — gets the handles structure from the figure’s application

data.

Tag forms the

name of the

callback

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MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Specifiche Pagina 114