MATLAB SIMULINK 7 - GRAPHICAL USER INTERFACE Uživatelská příručka stáhnout pdf (Strana 328)

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8 Programming a GUIDE GUI

Mouse Gestures and Menu Callback Behavior. Callback s for leaf me n u

items, such as for to file or to clipboard in the previous example, actuate

when you release the mouse over them. Callbacks for main menus (like Edit)

and non-leaf submenus (like Copy) actuate when you select them by sliding

the mouse pointer into them after they display. Even w hen it has no menu

items, a main menu callback actuates as soon as you select the menu. When a

submenu contains no items, its callback actuates upon releasing the mouse

over it. H ow ever, if a submenu has one or more child menu items, its callback

actuates as soon as you select it. The mouse button does not have to be d ow n

to trigger the callback of a m enu item that has children.

Opening a Dialog Box from a Menu Callback

The Callback callback for the to file menu item could contain code such as

the following to display the standard dialog box for saving files.

[file,path] = uiputfile('animinit. m','Save file name' );

'Save file name'

is the d ialog box title. In the dialog box, the filename field

is set to

animinit.m, and the filter set to MAT LAB code files (*.m). For more

information, see the

uiputfile reference page.

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