Lazarus CAPTCHA

Captcha Verification (or Completely Automated Public Turing Test to tell Computers and Humans Apart) is a common web technique used to help ensure that your respondents are real humans and not a program written to spam your survey.

This is a Lazarus implementation that you can use in your own projects.

It's a fork from the Delphi version here: Captcha Verification by Jens Borrisholt.

Screenshots

Linux

Wine

Windows

Todo

• Need to get that background to be white.
• Need to find out why optimization greater than 1 messes up the font size and rotation in Linux.
• Need to make this into a Visual component like the one WP made: captcha_component