Managing Application Data :: Programming GUIs (Creating Graphical User Interfaces)

Creating Graphical User Interfaces

Managing Application Data

Application data provides an alternative to GUI data (see Managing GUI Data with the Handles Structure) for applications to save and retrieve data associated with an object. The data is stored as name/value pairs. Application data enables you to create what are essentially user-defined properties for an object. You can define application data for your GUI by associating name/value pairs with the GUI figure object.

Functions for Accessing Application Data

The following functions provide access to application data.

Functions for Accessing Application-Defined Data
Function
Purpose

setappdata
Specify named application data

getappdata
Retrieve named application data

isappdata
True if the named application data exists

rmappdata
Remove the named application data

**Functions for Accessing Application-Defined Data**
Function	Purpose
`setappdata`	Specify named application data
`getappdata`	Retrieve named application data
`isappdata`	True if the named application data exists
`rmappdata`	Remove the named application data

Note A GUIDE-generated GUI M-file uses the guidata function to store the handles structure. For such M-files, you must always use the guidata function to access the handles structure. See Managing GUI Data with the Handles Structure.

Managing GUI Data with the Handles Structure Designing for Cross-Platform Compatibility