void gtk_tree_selection_selected_foreach ( GtkTreeSelection* selection, GtkTreeSelectionForeachFunc func, gpointer data )
Calls a function for each selected node. Note that you cannot modify
the tree or selection from within this function. As a result,
gtk_tree_selection_get_selected_rows() might be more useful.
The function to call for each selected node.
User data to pass to the function.
The argument can be
The data is owned by the caller of the function.