https://www.machform.com/forums/ MachForm Community Forums Topic: Internal CAPTCHA Changes en Wed, 06 May 2026 08:49:05 +0000 https://www.machform.com/forums/topic/internal-captcha-changes#post-3499 Fri, 31 Oct 2008 20:47:47 +0000 redityo 3499@https://www.machform.com/forums/ <p>yes howard, you can use internal captcha in machform, simply edit your config.php file and you will find this line :</p> <pre><code>define(&#39;USE_INTERNAL_CAPTCHA&#39;,false);</code></pre> <p>set it as true </p> https://www.machform.com/forums/topic/internal-captcha-changes#post-3498 Fri, 31 Oct 2008 19:34:07 +0000 howardes 3498@https://www.machform.com/forums/ <p>@ Ron S</p> <p>Can you tell me if the internal Captcha is available to use in MatchForm? If yes any special place I would look to set this as the default for my forms. reCaptcha seems to be much to difficult to "answer test" for me.</p> <p>Thanks,</p> <p>-howard </p> https://www.machform.com/forums/topic/internal-captcha-changes#post-3459 Thu, 30 Oct 2008 09:51:33 +0000 webcommerce 3459@https://www.machform.com/forums/ <p>Thanks Yuniar, that's excellent.<br /> I will try that.<br /> Ron S </p> https://www.machform.com/forums/topic/internal-captcha-changes#post-3458 Thu, 30 Oct 2008 09:49:19 +0000 yuniar 3458@https://www.machform.com/forums/ <p>If you need to use single color for the text.<br /> Let say we would like to have:</p> <pre><code>Blue text: 003399 Green background: 00FF00</code></pre> <p>(taken from <a href="http://html-color-codes.com/" rel="nofollow">http://html-color-codes.com/</a>)</p> <p>Edit your php-captcha.inc.php, search around line 272 for this code:</p> <pre><code>$iTextColour = imagecolorallocate($this-&gt;oImage, rand(0, 100), rand(0, 100), rand(0, 100));</code></pre> <p>change it to use the blue color:<br /> <pre><code>$iTextColour = imagecolorallocate($this-&gt;oImage, 0x00, 0x33, 0x99);</code></pre> <p>Next, search around line 211:</p> <pre><code>if ($this-&gt;bUseColour) { $iLineColour = imagecolorallocate($this-&gt;oImage, rand(100, 250), rand(100, 250), rand(100, 250)); }</code></pre> <p>change it to use the green color:<br /> <pre><code>if ($this-&gt;bUseColour) { $iLineColour = imagecolorallocate($this-&gt;oImage, 0x00, 0xFF, 0x00); }</code></pre> <p>That would set your colors. </p> https://www.machform.com/forums/topic/internal-captcha-changes#post-3453 Thu, 30 Oct 2008 06:51:19 +0000 Saghalie 3453@https://www.machform.com/forums/ <p>Nice! thanks for that.. </p> https://www.machform.com/forums/topic/internal-captcha-changes#post-3452 Thu, 30 Oct 2008 05:31:21 +0000 webcommerce 3452@https://www.machform.com/forums/ <p>Well ... if it's of interest to anyone else, I did find the solution to this. The CAPTCHA image is available in glorious colour by making the following change:</p> <p>./lib/php-captcha/php-captcha.inc.php</p> <p>look for " // class defaults - change to effect globally "<br /> change define('CAPTCHA_USE_COLOUR', false);<br /> to define('CAPTCHA_USE_COLOUR', true);</p> <p>To see an example check out my test form at <a href="http://www.callsave.com.au/secure_form.php" rel="nofollow">www.callsave.com.au/secure_form.php</a></p> <p>Regards,<br /> Ron S </p> https://www.machform.com/forums/topic/internal-captcha-changes#post-3444 Wed, 29 Oct 2008 11:43:39 +0000 webcommerce 3444@https://www.machform.com/forums/ <p>Hi Saghalie,</p> <p>Sorry, I didn't think to say it in my original post but I'm using internal Captcha.<br /> I don't think this is very similar to recaptcha?</p> <p>Thanks.<br /> Ron S </p> https://www.machform.com/forums/topic/internal-captcha-changes#post-3443 Wed, 29 Oct 2008 10:29:43 +0000 Saghalie 3443@https://www.machform.com/forums/ <p>Ron,</p> <p>You will need to edit hooks/custom_hooks.php and define your theme there. At least I believe you can still do this there, I haven't done it in a while though.</p> <p>Check out <a href="http://recaptcha.net" rel="nofollow">http://recaptcha.net</a> for further info on themes.</p> <p>Hope this helps!</p> <p>Saghalie </p> https://www.machform.com/forums/topic/internal-captcha-changes#post-3442 Wed, 29 Oct 2008 10:26:08 +0000 webcommerce 3442@https://www.machform.com/forums/ <p>First off, my thanks for a great form tool. I've been looking for something like this for a long time.</p> <p>I want to change the background and text colours in the captcha image. e.g Navy blue text on a pale green background .... Is this possible?</p> <p>If so, where would the changes be made??</p> <p>Thanks,<br /> Ron S </p>