Passcode to submit form

  • Thread starter Thread starter Brian W
  • Start date Start date
B

Brian W

Hi All,

I have a page a user would fill out then click submit.

What I would like to do, to help prevent bots from auto submitting (I know,
it's not perfect) So I would like to do that trick where an image is
displayed with a randomly selected string and have it mangled so only
(hopefully) a human can read it.

I may not have described it exactly right (its late :-)) but I think someone
knows what I mean....

If that someone could point me in the right direction, I would be grateful.


TIA
Brian W
 
Thanks, Steven but the generating of the image is the part I can do, it is
the distorting of the image I am unsure of how to do.

Also the implementation in ASP.NET to check the validity of the "code" when
the user has entered it into a text box.

Thanks
 
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