$imageLibrary public property (available since version 2.0.7) The

$fixedVerifyCode public property The fixed verification code.

$padding public property Padding around the text. Defaults to

renderImageByImagick() protected method Renders the CAPTCHA

init() public method Initializes the action.

getSessionKey() protected method Returns the session variable

run() public method Runs the action.

$testLimit public property How many times should the same CAPTCHA

$backColor public property The background color. For example,

$fontFile public property The TrueType font file. This can be