Welcome Guest, you are in: <root>Elements • Login

Page History: Button Element

Compare Page Revisions

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Current 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

« Older Revision - Back to Page History - Newer Revision »

Page Revision: 2012/01/31 15:22

Button element detects button presses and releases on standard input devices supported by DirectInput API. Such devices include keyboard, mouse, and a variety of joysticks and gamepads. The element collects timing statistics and, therefore is a default choice for recording of participant responses. The element allows using multiple input devices in parallel.

Table of Contents [Hide/Show] Description Snapshots Practical use Note Properties     Generic properties

Description ¶

Snapshots ¶

Snapshot 1

Snapshot 2

Practical use ¶

The typical usage for the button element is detection of particular participant responses. However, you can use the button elements to provide operator's feedback to an experiment (for example, adjusting the experimental parameters with a keyboard at the runtime)

Note ¶

The default settings allow detection only of the first button press. The following presses will be ignored. Change properties in the BEHAVIOUR group according to your requirements.)))

Properties ¶

Generic properties ¶

Name	Description	Attributes	Value Type
Control
Input device	Select one of the input devices currently connected to the computer.	Design-time action	String
Button	Defines a button which presses are registered by the element. If 'Any Button' selected then the element registers presses of all buttons on the device. The pressed button name is indicated by the Triggered Button property.	Design-time action	Int32
Triggering Mode	Defines the triggering mode for button. First Press Only mode is recommended for response time measurements.		enButtonTriggeringMode
Runtime status
Triggered button	Indicates a name of the pressed button. The keyboard symbol buttons are indicated by capital letters, whereas mouse and gamepad buttons have names like 'Button 1' and so on.		String
Is down	Indicates whether the selected button is currently in the down state.	R, Read-only	Boolean
Triggering time	Stores a local event time (in ms) of the last button triggering. The value can be used a direct measure of the response time.		UInt64
Is triggered	Stores a local event time (in ms) of the last button triggering. The value can be used a direct measure of the response time		UInt64

+=== Properties inherited from clElement === Inherited properties of clElement

Name	Description	Constraints	Value Type	Upon Change
Control
Is Enabled	If set to false the element is completely omitted when the experiment is run.	Design Time..	Boolean
Title	Title of the element.	Design Time..	String