Captcha

Captcha

• Demonstration: Capcha Demo
• Java API: Captcha
• JavaScript API: Captcha

Employment/Purpose

A captcha component can generate a special distortion image, also called a CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) image. Developers could set height and width for dimension of captcha. By default, captcha render the image with a randomly generated text, and developers can set value to assign a purposive text.

Example

 <vbox>
     <captcha id="cpa" length="5" width="200px" height="50px"/>
 </vbox>

Supported events

Name	Event Type
onClick	[#MouseEvent org.zkoss.zk.ui.event.MouseEvent] Description: Denotes user has clicked the component. Use getX(), getY() method get coordinates.

Supported Children

*NONE

Use cases

Version	Description	Example Location

Version History

Version	Date	Content
5.0.2	5/19/2010	Initialization