Checkbox

Checkbox enables user making Yes/No selections. Inserted values are accessible in a form of variables within CourseLab and may be employed in different actions.

IMPORTANT! The value is recorded in associated variable immediately after changing state.

This Object can save and restore its last state, i.e. when you return to the Slide this Object will display the last displayed value.

Examples of Object appearance:

Object Parameters

Specify variable name, which will be used for storing user input. 

IMPORTANT! Variable names must contain only Latin alphabet letters, and numbers, and must not start with a digit. Variable names must be unique within a Slide or Module (depending on selected variable scope).

Specify value for the variable, in case user marks Checkbox and when Checkbox is unchecked. Default values are true/false.

Specify initial state, which is whether or not input element is marked after Object loads up.

Use Display tab to specify the field appearance.

The essential parameter is Display description. In case it is not marked, all other tab parameters are disabled for editing, therefore only input element will be displayed on the Frame.

In case Display description is checked, you can input description text , text padding and specify position (right or left) of the text description with regards to the input element.

On the Sound tab you can switch click sounds on and off, or change it to custom sounds.

IMPORTANT! Sounds must be short and have no starting lag. Otherwise it may lead to undesirable delays in course playing.

Object Events

Object is capable generating events with regards to the user's actions and interpretation of the actions by the object. When combined with actions events can be employed for building up intellectual behavior models for other objects depending on the current state of the Object. Events are available using CourseLab built-in events manipulation mechanism.

Event	Triggered Upon
on Check	User sets checkmark
on Uncheck	User removes checkmark
on Change Value	User sets or removes checkmark. This event is triggered right before events mentioned above.

Object Methods

The following Methods can be used when working with this Object.

Method	Result
DISABLE	Object will be disabled.
ENABLE	Object will be enabled.
SET VALUE	Set checkbox state

Object Specific Properties

Along with common object properties, this object has some specific properties, that can be used in actions and in text substitutions (OBJ_ID below means current object ID):

Property	Returns	Syntax
disabled	Returns 1 if the Object is currently disabled, 0 otherwise.	$OBJ_ID.disabled
value	Returns 1 if the Object is currently checked, 0 otherwise.	$OBJ_ID.value