The CAPTCHA image can be customized according to the
requirements/desires of your site, using the following Appconfigs:
| AppConfig
Name | Description |
| Captcha.AllowedCharactersRegex | This is a regular expression which determines
which characters the CAPTCHA image will contain. Do
not change this if you are not familiar with regular expressions!
|
| Captcha.CaseSensitive | Setting this to
true will require customers to properly match the case shown in the
CAPTCHA image. Setting this to false does NOT make
the CAPTCHA image not use caps in the image, it simply ignores the case
for the customer entry. Disabling caps entirely would require editing
the Captcha.AllowedCharactersRegex
AppConfig. |
| Captcha.HorizontalColor | This
changes the color of the horizontal 'brushstrokes' of color that are
randomly generated on the CAPTCHA
image. |
| Captcha.ImageBackColor | This is the
color used for the 'block' portion of the grid background of the
CAPTCHA image. |
| Captcha.ImageForeColor | This is
the color used for the 'line' portion of the grid background of the
CAPTCHA image. |
| Captcha.MaxAsciiValue | Do not change this unless you know what you are doing!
|
| Captcha.NumberOfCharacters | Specifies
the number of characters the CAPTCHA image will
contain. |
| Captcha.TextBackColor | Controls the
background color of the text in the CAPTCHA
image. |
| Captcha.TextForeColor | Controls the
foreground color of the text in the CAPTCHA
image. |
| Captcha.VerticalColor | This changes the
color of the vertical 'brushstrokes' of color that are randomly
generated on the CAPTCHA image. |