Yes it works to open a form within Magnific Popup but it’s not simple.
I did it here: http://www.sqli-enterprise.com/solutions/customer-relationship-management/ (click on the big red image ‘workshop gratuit’.
It’s a Gravity form inside but it could be whatever you like.
I’ll give you more details how I did this.
First here the code in my function.php :

function inline_popup_enabler(){
?>
<script>
(function($){
    $(window).load(function() {
    	$('.inline_popup').magnificPopup({
    	  type:'inline',
    	  midClick: true,
    	  preloader: false,
    	  focus: '#input_12_13',
    	  callbacks: {
            beforeOpen: function() {
              if($(window).width() < 700) {
                this.st.focus = false;
              } else {
                this.st.focus = '#input_12_13';
              }
            }
          }
    	});
    });
})(jQuery);
</script>
<?php
}
add_action('wp_footer', 'inline_popup_enabler');

All the informations are available here :
http://dimsemenov.com/plugins/magnific-popup/
http://dimsemenov.com/plugins/magnific-popup/documentation.html#inline-type

I will give you how I setup my page later.

My English is not so good , but I try it anyway.
Since WordPress 4.1.1 had to paste the .htaccess following: AddHandler php- fastcgi .php . Otherwise, I could not update . If this line stays there , I get the following error message on the home page:
Warning: session_start (): open (/ tmp / sess_8f2cfdbe47fc9b07ee2062414b070112 , O_RDWR ) failed: Permission denied (13 ) in /www/htdocs/xxxxxx/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/masonry_entries.php on line 32

Warning: Unknown: open ( / tmp / sess_8f2cfdbe47fc9b07ee2062414b070112 , O_RDWR ) failed: Permission denied (13 ) in Unknown on line 0

Warning: Unknown : Failed to write session data ( files) . Please verify the current setting of session.save_path did is correct ( / tmp) in Unknown on line 0th
My provider is all-incl.com in Germany
If I take the line from the .htaccess out , then it works

———————————————————————–

Mein Englisch ist nicht so gut, aber ich versuche es trotzdem.
Seit WordPress 4.1.1 musste in die .htaccess folgendes einfügen: AddHandler php-fastcgi .php . Ansonsten hätte ich nicht updaten können. Wenn diese Zeile dort bleibt, erhalte ich folgende Fehlermeldung auf der Startseite:
Warning: session_start(): open(/tmp/sess_8f2cfdbe47fc9b07ee2062414b070112, O_RDWR) failed: Permission denied (13) in /www/htdocs/xxxxxx/wp-content/themes/enfold/config-templatebuilder/avia-shortcodes/masonry_entries.php on line 32

Warning: Unknown: open(/tmp/sess_8f2cfdbe47fc9b07ee2062414b070112, O_RDWR) failed: Permission denied (13) in Unknown on line 0

Warning: Unknown: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp) in Unknown on line 0.
Mein Provider ist : all-incl.com in Deutschland
Nehme ich die Zeile aus der htaccess heraus, dann funktioniert es

Hi,

I’m no expert (by a long shot) so could be giving you completely wrong info but…

1. Where can I find the picture sizes, which are used in ENFOLD?

functions.php has the following:

$avia_config['imgSize']['widget'] 			 	= array('width'=>36,  'height'=>36);						// small preview pics eg sidebar news
$avia_config['imgSize']['square'] 		 	    = array('width'=>180, 'height'=>180);		                 // small image for blogs
$avia_config['imgSize']['featured'] 		 	= array('width'=>1500, 'height'=>430 );						// images for fullsize pages and fullsize slider
$avia_config['imgSize']['featured_large'] 		= array('width'=>1500, 'height'=>630 );						// images for fullsize pages and fullsize slider
$avia_config['imgSize']['extra_large'] 		 	= array('width'=>1500, 'height'=>1500 , 'crop' => false);	// images for fullscrren slider
$avia_config['imgSize']['portfolio'] 		 	= array('width'=>495, 'height'=>400 );						// images for portfolio entries (2,3 column)
$avia_config['imgSize']['portfolio_small'] 		= array('width'=>260, 'height'=>185 );						// images for portfolio 4 columns
$avia_config['imgSize']['gallery'] 		 		= array('width'=>845, 'height'=>684 );						// images for portfolio entries (2,3 column)
$avia_config['imgSize']['magazine'] 		 	= array('width'=>710, 'height'=>375 );						// images for magazines
$avia_config['imgSize']['masonry'] 		 		= array('width'=>705, 'height'=>705 , 'crop' => false);		// images for fullscreen masonry
$avia_config['imgSize']['entry_with_sidebar'] 	= array('width'=>845, 'height'=>321);		            	// big images for blog and page entries
$avia_config['imgSize']['entry_without_sidebar']= array('width'=>1210, 'height'=>423 );						// images for fullsize pages and fullsize slider

2. Which size is the best size for pictures before I upload them to wordpress?

Depends on the largest image size required and if you want large lightbox detailed images to show

3. Must the original picture have the same ratio as the destination ratio inwordpress.

This depends on the crop set above. This link n the WordPress Codex: http://codex.wordpress.org/Function_Reference/add_image_size lists the different types of crop and also explains how to add extra custom image sizes to your theme.

http://havecamerawilltravel.com/photographer/wordpress-thumbnail-crop shows you how each type of crop is displayed as it doesn’t work exactly as one would think.

Like I said, I’m no expert so if a Moderator comes along and says I’ve just told you a pile of rubbish then I’m sorry!

• This reply was modified 11 years, 2 months ago by DigitalEssence.