MATLAB DATABASE TOOLBOX RELEASE NOTES Guide de l'utilisateur télécharger pdf (Page 233)

Upgrading from an Earlier Release

19-5

Upgrading from an Earlier Release

This section describes the upgrade issues involved in moving the Instrument

Control Toolbox 1.0 (Release 12.0) to the Instrument Control Toolbox 1.1

(Release 12.1).

Events, Callbacks, and Function Handles

Action properties and action functions are now referred to as callback

properties and callback functions. This new terminology is reflected in new

names for the associated properties and functions. The general rule for the

name changes is to change “Action” to “Fcn” for properties, and “action” to

“callback” for functions. For example,

TimerAction has been renamed

TimerFcn, and instraction has been renamed instrcallback.

Additionally, if you want to automatically pass the object and event

information to the callback function, then you must specify the function as

either a function handle or as a cell array. Note that you can also specify the

callback function as a string. In this case, the callback is evaluated in the

MATLAB workspace and no requirements are made on the function’s input

arguments.

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MATLAB DATABASE TOOLBOX RELEASE NOTES Guide de l'utilisateur Page 233