In a quicklook preview panel, there is a line along the bottom that normally displays a 'Full Screen' button enabling full screen. If you open a file with a JPEG or other iPhoto supported image, there is also an 'Add to iPhoto' button here.
Looking through the apple docs I see no reference to how to add things to this panel, so I am guessing it must be a private framework. I don't see any other quicklook plugins accessing it.
Does anyone know how to add icons to this panel?