getappdata - Retrieve application data - MATLAB (original) (raw)

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Retrieve application data

Syntax

Description

Use this function to retrieve data stored using the setappdata function. Both of these functions provide a convenient way to share data between callbacks or between separate UIs.

[val](#f42-13763-val) = getappdata([obj](#mw%5F6c06294d-cc7f-4c3a-9e63-45e296612568),[name](#mw%5Fc54cf41c-eefe-4f22-a6b9-8c1494edd2ee)) returns a value stored in the graphics object, obj. The name identifier, name, uniquely identifies the value to retrieve.

example

[vals](#f42-13763-vals) = getappdata([obj](#mw%5F6c06294d-cc7f-4c3a-9e63-45e296612568)) returns all values stored in the graphics object with their name identifiers.

example

Examples

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Create a figure window.

Get the current date and time as separate variables.

dt = fix(clock); currdate = dt(1:3); currtime = dt(4:6);

Store currdate and currtime using the setappdata function.

setappdata(f,'todaysdate',currdate); setappdata(f,'presenttime',currtime);

Retrieve the date information.

getappdata(f,'todaysdate')

Retrieve all data associated with figure f.

ans =

 todaysdate: [2014 12 23]
presenttime: [16 51 5]

Input Arguments

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Graphics object containing the value, specified as any graphics object. This is the same graphics object passed to setappdata during the storage operation.

Name identifier, specified as a character vector or string scalar. This is the same name identifier passed to setappdata during the storage operation.

Output Arguments

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Stored value, returned as the same value and data type that was originally stored.

All values stored in the graphics object with name identifiers, returned as a structure. Each field in the structure corresponds to a stored value. The field names of the structure correspond to the name identifiers assigned when each value was stored.

Version History

Introduced before R2006a