Interface Flashcards

Which function creates a context menu that appears when a user right-clicks on a MATLAB figure object?

Answer: uicontextmenu

uicontextmenu creates a context menu object that is attached to a graphics object via its UIContextMenu property.

What App Designer property determines the order in which Tab key presses move focus between components?

Answer: TabOrder

TabOrder is set in App Designer's component browser or programmatically to control keyboard navigation sequence.

Which MATLAB function displays a multi-line text input dialog and returns the string entered by the user?

Answer: inputdlg

inputdlg opens a dialog with labeled text fields and returns cell array of strings entered by the user.

In MATLAB graphics, what does setting a figure's 'WindowStyle' to 'modal' do?

Answer: Prevents interaction with other MATLAB windows until the figure is closed

A modal WindowStyle blocks user input to all other MATLAB windows until the modal figure is dismissed.

Which property of a MATLAB axes object controls the text label displayed below the x-axis?

Answer: XLabel

XLabel is an axes property that holds a text object; set XLabel.String to display a label below the x-axis.

What is the role of the 'Tag' property in MATLAB UI components?

Answer: Provides a string identifier to locate the component with findobj

Tag is a user-defined string identifier that findobj can search for to retrieve a handle without storing it explicitly.

In App Designer, which event fires when a user changes the selected tab in a TabGroup component?

Answer: SelectionChangedFcn

SelectionChangedFcn fires on the TabGroup when the user clicks a different Tab, providing the previous and current selection.