[FMX] Photogallery + preloader?

I have just been checking this tutorial, very handy!
http://www.kirupa.com/developer/mx/photogallery.htm

But now i want to get more advanced and attache a preloader to this gallery.
I know how to make a preloader (kirupa’s tutorials, awesome!) but i dont know how to add it to this photogallery… is there anybody who can help me out here?
So yeah, I want a preloader before each photo gets loaded… cause right now it loads without one so i get a white background.

Thanks! :slight_smile: