How I want to send string with number like 3456789 to GtkLabel with the output 3.456.789,00 I try this code : str_total = g_strdup_printf("%f", dbl_total); str_total_formatted = g_strndup(str_total, strcspn(str_total, ".") +3); and the output : 3456789.00 How to make the output : 3.456.789,00 thx _______________________________________________ gtk-list@xxxxxxxxx http://mail.gnome.org/mailman/listinfo/gtk-list