CAPTCHA

About

According to wikipedia, a CAPTCHA (a contrived acronym for "Completely Automated Public Turing test to tell Computers and Humans Apart") is a type of challenge–response test used in computing to determine whether or not the user is human.

The component TCaptchaLabel allows to create a CAPTCHA to be used on any LCL form. It displays random characters which are colored and rotated and overlayed by colored lines to impede machine detection of the CAPTCHA text.