CAPTCHA Generator for .NET

I needed a CAPTCHA generator for some stuff I’ve been doing. I looked around and did find some assemblies for .NET. I thought of coding my own CAPTCHA generator and decided to do this using C#. The result – You can download/contribute here. You can even download a sample usage of this in a Windows Forms application form the “Releases” section. This can even be used in ASP.NET applications. This assembly will need permission to write to disk (to store the CAPTCHA image generated).

Usage

using CAPTCHA;
CaptchaGenerator cgen;

Single custom coloured CAPTCHA
cgen.CaptchaColor = Color.FromArgb(130, 120, 130);
CaptchaText = cgen.GenerateCaptcha(@”G:\test1.gif”);
pictureBox1.ImageLocation = @”G:\test1.gif”;

Default Random Coloured CAPTCHA
cgen.ResetCaptchaColor();
CaptchaText = cgen.GenerateCaptcha(@”G:\test1.gif”);
pictureBox1.ImageLocation = @”G:\test1.gif”;