Hi,
the hook to do that is documented here (one of the few so far…)
http://docs.wpgeodirectory.com/geodir_social_sharing_buttons_html/
The edit to the code to output the featured image is minimal.
The code below if added to your theme functions.php will result in the image attached.
/**
* Wraps the sharing buttons div in our custom container
*
* @param string $content_html The HTML of the sharing buttons div
* @return string Filtered HTML.
*/
function my_theme_geodir_social_sharing_buttons_html( $content_html ) {
global $post;
$thumb = the_post_thumbnail( 'medium' );
return "<div class='my-theme-class'>".$thumb."</div>".$content_html;
}
add_filter( 'geodir_social_sharing_buttons_html', 'my_theme_geodir_social_sharing_buttons_html', 10, 1 );
Now you just need to style css according to your needs.
Thx