ListBoxForeachFunc   
    A function used by gtk_list_box_selected_foreach().
It will be called on every selected child of the @box.
- param - boxa- GtkListBox
- param - rowa- GtkListBoxRow
A function used by gtk_list_box_selected_foreach().
It will be called on every selected child of the @box.
param box a GtkListBox
param row a GtkListBoxRow