gtk-cell-layout-set-cell-data-func (layout cell func)

layout -- a gtk-cell-layout object
cell -- a gtk-cell-renderer object
func -- the gtk-cell-layout-data-func to use, or nil

Sets the callback function to use for layout. This function is used instead of the standard attributes mapping for setting the column value, and should set the value of layout's cell renderer(s) as appropriate.

The callback function func may be nil to remove a previously set function.