Example for gfrom_loaded

gistfile1.php

/**
 * Fires the class when Gravity Forms has loaded
 */
add_action('gform_loaded', array('GF_Simple_Addon_bootstrap', 'load'), 5);

/**
 * Class GF_Test is our Bootstrap class, it loads a lot of the important stuff, like files
 */
class GF_Simple_slack_bootstrap {

	/**
	 * The function to require add-on files and Register the add-on class
	 */
	public static function load() {
		if( ! method_exists('GFForms', 'include_payment_addon_framework') ) {
			return;
		}

		// Require our class file, this is where th GFAddOn will go
		require_once('class.gf-simple-add-on.php');

		// Let's register our add-on Class with Gravity Forms (It will extend the main GFAddOn Class
		GFAddOn::register( 'GFSimpleAddon' );
	}

}