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Page Revision: 2011/07/25 10:33

Table of Contents [Hide/Show] Description Property attributes

Description ¶

The Properties tab is located to the right of the Event window, and this allows the user to modify the experimental design at all levels - from the runtime features of the entire experiment to the aesthethic features of individual elements. Most properties can be converted into parameters and manipulated on a trial-by-trial or block basis. Hovering over a property in the 'Properties' list will provide a brief description of the property, and the property type will often follow this description (in square brackets).

Property attributes ¶

A property's attributes determine how it can be accessed. Although most properties are available for use in code snippets through the parameters functionality,the property attributes can impose certain restictions on such interactions.

1. Run-time only: This attribute means that the property can be accessed only in the run-time. Such a property can be used only in conjunction with parameters functionality with property values to be read and written in code snippets.
2. Read-only: These properties are informative values. For example, it can be the statistics relating to the timing of EventIDE collected through a experiment run. Read-only properties can be used with parameter functionality and be read in code snippets like others. However, their values cannot be set- all assignments will be ignored.
3. Design-time only: The properties with this attribute can be changed only at designtime and during the running of an experiment their values are fixed or not used. Typically these properties provide supplementary information (such as an event's title) or they hold global settings such as display resolution that can not be changed in runtime. Design-time properties cannot be made into parameters.