Content: (5.00 KB)
Uploaded: 10.09.2014

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The idea of \u200b\u200ba CAPTCHA is to protect the site from spammers who use web bots when registering new accounts, send comments via web forms, etc. The user is shown a picture with distorted text (for protection of optical character recognition). Most users will easily be able to recognize distorted text and enter it to confirm, and the program - no.

Using the code

ZIP file contains the source code of a class of two web forms. Simply create a new project and insert these elements.


• CaptchaImage.cs - describes the object CapchaImage, which creates the image.

• Default.aspx, Default.aspx.cs - examples of web forms.

• JpegImage.aspx, JpegImage.aspx.cs - web form designed to display JPEG images rather than HTML.
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