$imageLibrary public property (available since version 2.0.7) The

$padding public property Padding around the text. Defaults to

run() public method Runs the action.

getSessionKey() protected method Returns the session variable

renderImageByImagick() protected method Renders the CAPTCHA

$fixedVerifyCode public property The fixed verification code.

init() public method Initializes the action.

$testLimit public property How many times should the same CAPTCHA

$height public property The height of the generated CAPTCHA image

$width public property The width of the generated CAPTCHA image