gtk-cell-area-foreach-alloc (area context widget cell background func)

area -- a gtk-cell-area object
context -- a gtk-cell-area-context object
widget -- a gtk-widget object that area is rendering to
cell -- a gdk-rectangle instance with the widget relative coordinates and size for area
background -- a gdk-rectangle instance with the widget relative coordinates of the background area
func -- a gtk-cell-alloc-callback callback function

Calls the callback function for every gtk-cell-renderer object in the cell area with the allocated rectangle inside cell.